About the Execution of 2024-gold for FunctionPointer-PT-c002
| Execution Summary | |||||
| Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
| 15685.340 | 3600000.00 | 4467116.00 | 9277.90 | 2 ? ? 0 ? 1 0 1 0 2 inf 2 inf ? ? ? | normal |
Execution Chart
We display below the execution chart for this examination (boot time has been removed).
Trace from the execution
Formatting '/data/fkordon/mcc2025-input.r111-smll-174867015800015.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2025-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................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=====================================================================
Generated by BenchKit 2-5832
Executing tool gold2024
Input is FunctionPointer-PT-c002, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r111-smll-174867015800015
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 4.6M
-rw-r--r-- 1 mcc users 6.3K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 63K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.9K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 42K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 29K May 29 14:47 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K May 29 14:47 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K May 29 14:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 15K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 166K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.5K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 71K May 29 14:47 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K May 29 14:47 UpperBounds.txt
-rw-r--r-- 1 mcc users 4.1K May 29 14:47 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 29 14:32 equiv_col
-rw-r--r-- 1 mcc users 5 May 29 14:32 instance
-rw-r--r-- 1 mcc users 6 May 29 14:32 iscolored
-rw-r--r-- 1 mcc users 4.2M May 29 14:32 model.pnml
--------------------
content from stdout:
=== Data for post analysis generated by BenchKit (invocation template)
The expected result is a vector of positive values
NUM_VECTOR
echo here is the order used to build the result vector(from xml file)
FORMULA_NAME FunctionPointer-PT-c002-UpperBounds-00
FORMULA_NAME FunctionPointer-PT-c002-UpperBounds-01
FORMULA_NAME FunctionPointer-PT-c002-UpperBounds-02
FORMULA_NAME FunctionPointer-PT-c002-UpperBounds-03
FORMULA_NAME FunctionPointer-PT-c002-UpperBounds-04
FORMULA_NAME FunctionPointer-PT-c002-UpperBounds-05
FORMULA_NAME FunctionPointer-PT-c002-UpperBounds-06
FORMULA_NAME FunctionPointer-PT-c002-UpperBounds-07
FORMULA_NAME FunctionPointer-PT-c002-UpperBounds-08
FORMULA_NAME FunctionPointer-PT-c002-UpperBounds-09
FORMULA_NAME FunctionPointer-PT-c002-UpperBounds-10
FORMULA_NAME FunctionPointer-PT-c002-UpperBounds-11
FORMULA_NAME FunctionPointer-PT-c002-UpperBounds-12
FORMULA_NAME FunctionPointer-PT-c002-UpperBounds-13
FORMULA_NAME FunctionPointer-PT-c002-UpperBounds-14
FORMULA_NAME FunctionPointer-PT-c002-UpperBounds-15
=== Now, execution of the tool begins
BK_START 1748773197064
Invoking MCC driver with
BK_TOOL=gold2024
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=FunctionPointer-PT-c002
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202405141337
[2025-06-01 10:19:59] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, UpperBounds, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2025-06-01 10:19:59] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-01 10:20:00] [INFO ] Load time of PNML (sax parser for PT used): 794 ms
[2025-06-01 10:20:00] [INFO ] Transformed 2826 places.
[2025-06-01 10:20:00] [INFO ] Transformed 8960 transitions.
[2025-06-01 10:20:00] [INFO ] Parsed PT model containing 2826 places and 8960 transitions and 36096 arcs in 1024 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 12 ms.
Deduced a syphon composed of 1198 places in 55 ms
Reduce places removed 1198 places and 2998 transitions.
FORMULA FunctionPointer-PT-c002-UpperBounds-03 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c002-UpperBounds-06 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c002-UpperBounds-08 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
Current structural bounds on expressions (Initially) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 10:20:00] [INFO ] Flow matrix only has 3540 transitions (discarded 2422 similar events)
// Phase 1: matrix 3540 rows 1628 cols
[2025-06-01 10:20:00] [INFO ] Computed 4 invariants in 145 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[2, +inf, +inf, +inf, 1, 1, 2, +inf, 2, +inf, +inf, +inf, +inf]
RANDOM walk for 10002 steps (2 resets) in 366 ms. (27 steps per ms)
FORMULA FunctionPointer-PT-c002-UpperBounds-05 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FunctionPointer-PT-c002-UpperBounds-07 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 110011 steps (22 resets) in 381 ms. (287 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 1, 1, 1, 4, 1, 5, 0, 1, 2] Max Struct:[2, +inf, +inf, +inf, 2, +inf, 2, +inf, +inf, +inf, +inf]
[2025-06-01 10:20:01] [INFO ] Flow matrix only has 3540 transitions (discarded 2422 similar events)
[2025-06-01 10:20:01] [INFO ] Invariant cache hit.
[2025-06-01 10:20:02] [INFO ] [Real]Absence check using 3 positive place invariants in 24 ms returned sat
[2025-06-01 10:20:02] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 10:20:03] [INFO ] [Real]Absence check using state equation in 1319 ms returned sat
[2025-06-01 10:20:03] [INFO ] State equation strengthened by 479 read => feed constraints.
[2025-06-01 10:20:03] [INFO ] [Real]Added 479 Read/Feed constraints in 175 ms returned sat
[2025-06-01 10:20:04] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:20:04] [INFO ] [Nat]Absence check using 3 positive place invariants in 23 ms returned sat
[2025-06-01 10:20:04] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 10:20:05] [INFO ] [Nat]Absence check using state equation in 1226 ms returned sat
[2025-06-01 10:20:06] [INFO ] [Nat]Added 479 Read/Feed constraints in 247 ms returned sat
[2025-06-01 10:20:07] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 1076 ms.
[2025-06-01 10:20:08] [INFO ] Added : 2 causal constraints over 1 iterations in 1729 ms. Result :sat
Minimization took 597 ms.
[2025-06-01 10:20:09] [INFO ] [Real]Absence check using 3 positive place invariants in 35 ms returned sat
[2025-06-01 10:20:09] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 2 ms returned sat
[2025-06-01 10:20:10] [INFO ] [Real]Absence check using state equation in 1324 ms returned sat
[2025-06-01 10:20:10] [INFO ] [Real]Added 479 Read/Feed constraints in 239 ms returned sat
[2025-06-01 10:20:10] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:20:11] [INFO ] [Nat]Absence check using 3 positive place invariants in 32 ms returned sat
[2025-06-01 10:20:11] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 2 ms returned sat
[2025-06-01 10:20:12] [INFO ] [Nat]Absence check using state equation in 1396 ms returned sat
[2025-06-01 10:20:12] [INFO ] [Nat]Added 479 Read/Feed constraints in 142 ms returned sat
[2025-06-01 10:20:13] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 866 ms.
[2025-06-01 10:20:14] [INFO ] Added : 1 causal constraints over 1 iterations in 1746 ms. Result :sat
Minimization took 620 ms.
[2025-06-01 10:20:15] [INFO ] [Real]Absence check using 3 positive place invariants in 20 ms returned sat
[2025-06-01 10:20:15] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 10:20:17] [INFO ] [Real]Absence check using state equation in 1469 ms returned sat
[2025-06-01 10:20:17] [INFO ] [Real]Added 479 Read/Feed constraints in 210 ms returned sat
[2025-06-01 10:20:17] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:20:17] [INFO ] [Nat]Absence check using 3 positive place invariants in 32 ms returned sat
[2025-06-01 10:20:17] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 10:20:19] [INFO ] [Nat]Absence check using state equation in 1384 ms returned sat
[2025-06-01 10:20:19] [INFO ] [Nat]Added 479 Read/Feed constraints in 163 ms returned sat
[2025-06-01 10:20:20] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 588 ms.
[2025-06-01 10:20:20] [INFO ] Added : 1 causal constraints over 1 iterations in 1178 ms. Result :sat
Minimization took 608 ms.
[2025-06-01 10:20:21] [INFO ] [Real]Absence check using 3 positive place invariants in 31 ms returned sat
[2025-06-01 10:20:21] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 10:20:23] [INFO ] [Real]Absence check using state equation in 1212 ms returned sat
[2025-06-01 10:20:23] [INFO ] [Real]Added 479 Read/Feed constraints in 141 ms returned sat
[2025-06-01 10:20:23] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:20:23] [INFO ] [Nat]Absence check using 3 positive place invariants in 19 ms returned sat
[2025-06-01 10:20:23] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 10:20:24] [INFO ] [Nat]Absence check using state equation in 1227 ms returned sat
[2025-06-01 10:20:25] [INFO ] [Nat]Added 479 Read/Feed constraints in 154 ms returned sat
[2025-06-01 10:20:25] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 552 ms.
[2025-06-01 10:20:26] [INFO ] Added : 1 causal constraints over 1 iterations in 1082 ms. Result :sat
Minimization took 601 ms.
[2025-06-01 10:20:27] [INFO ] [Real]Absence check using 3 positive place invariants in 19 ms returned sat
[2025-06-01 10:20:27] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 2 ms returned sat
[2025-06-01 10:20:28] [INFO ] [Real]Absence check using state equation in 1280 ms returned sat
[2025-06-01 10:20:28] [INFO ] [Real]Added 479 Read/Feed constraints in 300 ms returned sat
[2025-06-01 10:20:28] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:20:29] [INFO ] [Nat]Absence check using 3 positive place invariants in 32 ms returned sat
[2025-06-01 10:20:29] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 10:20:30] [INFO ] [Nat]Absence check using state equation in 1401 ms returned sat
[2025-06-01 10:20:30] [INFO ] [Nat]Added 479 Read/Feed constraints in 223 ms returned sat
[2025-06-01 10:20:33] [INFO ] Deduced a trap composed of 131 places in 2123 ms of which 144 ms to minimize.
[2025-06-01 10:20:33] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 2411 ms
[2025-06-01 10:20:34] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 815 ms.
[2025-06-01 10:20:34] [INFO ] Added : 0 causal constraints over 0 iterations in 819 ms. Result :unknown
[2025-06-01 10:20:34] [INFO ] [Real]Absence check using 3 positive place invariants in 38 ms returned sat
[2025-06-01 10:20:34] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 10:20:35] [INFO ] [Real]Absence check using state equation in 1326 ms returned sat
[2025-06-01 10:20:36] [INFO ] [Real]Added 479 Read/Feed constraints in 340 ms returned sat
[2025-06-01 10:20:36] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:20:36] [INFO ] [Nat]Absence check using 3 positive place invariants in 21 ms returned sat
[2025-06-01 10:20:36] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 10:20:38] [INFO ] [Nat]Absence check using state equation in 1378 ms returned sat
[2025-06-01 10:20:38] [INFO ] [Nat]Added 479 Read/Feed constraints in 346 ms returned sat
[2025-06-01 10:20:41] [INFO ] Deduced a trap composed of 142 places in 2869 ms of which 26 ms to minimize.
[2025-06-01 10:20:41] [WARNING] SMT solver failed with error :java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Failed to assert expression: java.io.IOException: Stream close... while checking expression at index 5
java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Failed to assert expression: java.io.IOException: Stream close...
at fr.lip6.move.gal.structural.smt.SMTUtils.execAndCheckResult(SMTUtils.java:299)
at fr.lip6.move.gal.structural.smt.SMTTrapUtils.refineWithTraps(SMTTrapUtils.java:177)
at fr.lip6.move.gal.structural.smt.DeadlockTester.verifyPossible(DeadlockTester.java:868)
at fr.lip6.move.gal.structural.smt.DeadlockTester.findStructuralMaxWithSMT(DeadlockTester.java:2251)
at fr.lip6.move.gal.application.solver.UpperBoundsSolver.applyReductions(UpperBoundsSolver.java:219)
at fr.lip6.move.gal.application.Application.startNoEx(Application.java:910)
at fr.lip6.move.gal.application.Application.start(Application.java:189)
at fr.lip6.move.gal.itscl.application.Application.start(Application.java:45)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:208)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:136)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:402)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:651)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:588)
at org.eclipse.equinox.launcher.Main.run(Main.java:1459)
at org.eclipse.equinox.launcher.Main.main(Main.java:1432)
[2025-06-01 10:20:41] [INFO ] [Real]Absence check using 3 positive place invariants in 29 ms returned sat
[2025-06-01 10:20:41] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 2 ms returned sat
[2025-06-01 10:20:43] [INFO ] [Real]Absence check using state equation in 1338 ms returned sat
[2025-06-01 10:20:43] [INFO ] [Real]Added 479 Read/Feed constraints in 252 ms returned sat
[2025-06-01 10:20:43] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:20:44] [INFO ] [Nat]Absence check using 3 positive place invariants in 20 ms returned sat
[2025-06-01 10:20:44] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 10:20:45] [INFO ] [Nat]Absence check using state equation in 1200 ms returned sat
[2025-06-01 10:20:45] [INFO ] [Nat]Added 479 Read/Feed constraints in 382 ms returned sat
[2025-06-01 10:20:47] [INFO ] Deduced a trap composed of 131 places in 2072 ms of which 15 ms to minimize.
[2025-06-01 10:20:47] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 2310 ms
[2025-06-01 10:20:48] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 538 ms.
Maximisation of solution failed !
Minimization took 0 ms.
[2025-06-01 10:20:49] [INFO ] [Real]Absence check using 3 positive place invariants in 31 ms returned sat
[2025-06-01 10:20:49] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 10:20:50] [INFO ] [Real]Absence check using state equation in 1194 ms returned sat
[2025-06-01 10:20:50] [INFO ] [Real]Added 479 Read/Feed constraints in 250 ms returned sat
[2025-06-01 10:20:50] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:20:51] [INFO ] [Nat]Absence check using 3 positive place invariants in 20 ms returned sat
[2025-06-01 10:20:51] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 10:20:52] [INFO ] [Nat]Absence check using state equation in 1403 ms returned sat
[2025-06-01 10:20:52] [INFO ] [Nat]Added 479 Read/Feed constraints in 207 ms returned sat
[2025-06-01 10:20:53] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 536 ms.
[2025-06-01 10:20:53] [INFO ] Added : 2 causal constraints over 1 iterations in 1125 ms. Result :sat
Minimization took 586 ms.
[2025-06-01 10:20:54] [INFO ] [Real]Absence check using 3 positive place invariants in 31 ms returned sat
[2025-06-01 10:20:54] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 10:20:56] [INFO ] [Real]Absence check using state equation in 1363 ms returned sat
[2025-06-01 10:20:56] [INFO ] [Real]Added 479 Read/Feed constraints in 164 ms returned sat
[2025-06-01 10:20:56] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:20:56] [INFO ] [Nat]Absence check using 3 positive place invariants in 21 ms returned sat
[2025-06-01 10:20:56] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 9 ms returned sat
[2025-06-01 10:20:58] [INFO ] [Nat]Absence check using state equation in 1476 ms returned sat
[2025-06-01 10:20:58] [INFO ] [Nat]Added 479 Read/Feed constraints in 153 ms returned sat
[2025-06-01 10:20:59] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 524 ms.
[2025-06-01 10:20:59] [INFO ] Added : 1 causal constraints over 1 iterations in 1102 ms. Result :sat
Minimization took 648 ms.
[2025-06-01 10:21:00] [INFO ] [Real]Absence check using 3 positive place invariants in 19 ms returned sat
[2025-06-01 10:21:00] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 10:21:02] [INFO ] [Real]Absence check using state equation in 1371 ms returned sat
[2025-06-01 10:21:02] [INFO ] [Real]Added 479 Read/Feed constraints in 141 ms returned sat
[2025-06-01 10:21:02] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:21:02] [INFO ] [Nat]Absence check using 3 positive place invariants in 32 ms returned sat
[2025-06-01 10:21:02] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 10:21:04] [INFO ] [Nat]Absence check using state equation in 1420 ms returned sat
[2025-06-01 10:21:04] [INFO ] [Nat]Added 479 Read/Feed constraints in 456 ms returned sat
[2025-06-01 10:21:05] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 658 ms.
[2025-06-01 10:21:06] [INFO ] Added : 2 causal constraints over 1 iterations in 1368 ms. Result :sat
Minimization took 613 ms.
[2025-06-01 10:21:07] [INFO ] [Real]Absence check using 3 positive place invariants in 23 ms returned sat
[2025-06-01 10:21:07] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2025-06-01 10:21:08] [INFO ] [Real]Absence check using state equation in 1195 ms returned sat
[2025-06-01 10:21:08] [INFO ] [Real]Added 479 Read/Feed constraints in 205 ms returned sat
[2025-06-01 10:21:08] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:21:08] [INFO ] [Nat]Absence check using 3 positive place invariants in 21 ms returned sat
[2025-06-01 10:21:08] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 10:21:10] [INFO ] [Nat]Absence check using state equation in 1295 ms returned sat
[2025-06-01 10:21:10] [INFO ] SMT solver returned unknown. Retrying;
[2025-06-01 10:21:11] [INFO ] [Nat]Added 479 Read/Feed constraints in 839 ms returned sat
[2025-06-01 10:21:13] [INFO ] Deduced a trap composed of 147 places in 2096 ms of which 18 ms to minimize.
[2025-06-01 10:21:15] [INFO ] Deduced a trap composed of 141 places in 2231 ms of which 16 ms to minimize.
[2025-06-01 10:21:15] [WARNING] SMT solver failed with error :java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Failed to assert expression: java.io.IOException: Stream close... while checking expression at index 10
java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Failed to assert expression: java.io.IOException: Stream close...
at fr.lip6.move.gal.structural.smt.SMTUtils.execAndCheckResult(SMTUtils.java:299)
at fr.lip6.move.gal.structural.smt.SMTTrapUtils.refineWithTraps(SMTTrapUtils.java:177)
at fr.lip6.move.gal.structural.smt.DeadlockTester.verifyPossible(DeadlockTester.java:868)
at fr.lip6.move.gal.structural.smt.DeadlockTester.findStructuralMaxWithSMT(DeadlockTester.java:2251)
at fr.lip6.move.gal.application.solver.UpperBoundsSolver.applyReductions(UpperBoundsSolver.java:219)
at fr.lip6.move.gal.application.Application.startNoEx(Application.java:910)
at fr.lip6.move.gal.application.Application.start(Application.java:189)
at fr.lip6.move.gal.itscl.application.Application.start(Application.java:45)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:208)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:136)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:402)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:651)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:588)
at org.eclipse.equinox.launcher.Main.run(Main.java:1459)
at org.eclipse.equinox.launcher.Main.main(Main.java:1432)
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0, 1, 1, 1, 4, 1, 5, 0, 1, 2] Max Struct:[2, +inf, +inf, +inf, 2, +inf, 2, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0, 1, 1, 2, 4, 1, 5, 0, 1, 2] Max Struct:[2, +inf, +inf, +inf, 2, +inf, 2, +inf, +inf, +inf, +inf]
Support contains 11 out of 1628 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 1628/1628 places, 5962/5962 transitions.
Graph (complete) has 7332 edges and 1628 vertex of which 1422 are kept as prefixes of interest. Removing 206 places using SCC suffix rule.26 ms
Discarding 206 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 379 transitions
Reduce isomorphic transitions removed 379 transitions.
Iterating post reduction 0 with 379 rules applied. Total rules applied 380 place count 1422 transition count 5583
Discarding 299 places :
Symmetric choice reduction at 1 with 299 rule applications. Total rules 679 place count 1123 transition count 3291
Iterating global reduction 1 with 299 rules applied. Total rules applied 978 place count 1123 transition count 3291
Ensure Unique test removed 348 transitions
Reduce isomorphic transitions removed 348 transitions.
Iterating post reduction 1 with 348 rules applied. Total rules applied 1326 place count 1123 transition count 2943
Discarding 158 places :
Symmetric choice reduction at 2 with 158 rule applications. Total rules 1484 place count 965 transition count 2627
Iterating global reduction 2 with 158 rules applied. Total rules applied 1642 place count 965 transition count 2627
Ensure Unique test removed 64 transitions
Reduce isomorphic transitions removed 64 transitions.
Iterating post reduction 2 with 64 rules applied. Total rules applied 1706 place count 965 transition count 2563
Discarding 14 places :
Symmetric choice reduction at 3 with 14 rule applications. Total rules 1720 place count 951 transition count 2535
Iterating global reduction 3 with 14 rules applied. Total rules applied 1734 place count 951 transition count 2535
Discarding 14 places :
Symmetric choice reduction at 3 with 14 rule applications. Total rules 1748 place count 937 transition count 2507
Iterating global reduction 3 with 14 rules applied. Total rules applied 1762 place count 937 transition count 2507
Discarding 14 places :
Symmetric choice reduction at 3 with 14 rule applications. Total rules 1776 place count 923 transition count 2479
Iterating global reduction 3 with 14 rules applied. Total rules applied 1790 place count 923 transition count 2479
Discarding 14 places :
Symmetric choice reduction at 3 with 14 rule applications. Total rules 1804 place count 909 transition count 2451
Iterating global reduction 3 with 14 rules applied. Total rules applied 1818 place count 909 transition count 2451
Discarding 14 places :
Symmetric choice reduction at 3 with 14 rule applications. Total rules 1832 place count 895 transition count 2423
Iterating global reduction 3 with 14 rules applied. Total rules applied 1846 place count 895 transition count 2423
Discarding 14 places :
Symmetric choice reduction at 3 with 14 rule applications. Total rules 1860 place count 881 transition count 2395
Iterating global reduction 3 with 14 rules applied. Total rules applied 1874 place count 881 transition count 2395
Discarding 12 places :
Symmetric choice reduction at 3 with 12 rule applications. Total rules 1886 place count 869 transition count 2371
Iterating global reduction 3 with 12 rules applied. Total rules applied 1898 place count 869 transition count 2371
Discarding 60 places :
Symmetric choice reduction at 3 with 60 rule applications. Total rules 1958 place count 809 transition count 2141
Iterating global reduction 3 with 60 rules applied. Total rules applied 2018 place count 809 transition count 2141
Discarding 60 places :
Symmetric choice reduction at 3 with 60 rule applications. Total rules 2078 place count 749 transition count 1901
Iterating global reduction 3 with 60 rules applied. Total rules applied 2138 place count 749 transition count 1901
Discarding 60 places :
Symmetric choice reduction at 3 with 60 rule applications. Total rules 2198 place count 689 transition count 1771
Iterating global reduction 3 with 60 rules applied. Total rules applied 2258 place count 689 transition count 1771
Discarding 60 places :
Symmetric choice reduction at 3 with 60 rule applications. Total rules 2318 place count 629 transition count 1651
Iterating global reduction 3 with 60 rules applied. Total rules applied 2378 place count 629 transition count 1651
Discarding 59 places :
Symmetric choice reduction at 3 with 59 rule applications. Total rules 2437 place count 570 transition count 1533
Iterating global reduction 3 with 59 rules applied. Total rules applied 2496 place count 570 transition count 1533
Discarding 59 places :
Symmetric choice reduction at 3 with 59 rule applications. Total rules 2555 place count 511 transition count 1415
Iterating global reduction 3 with 59 rules applied. Total rules applied 2614 place count 511 transition count 1415
Discarding 56 places :
Symmetric choice reduction at 3 with 56 rule applications. Total rules 2670 place count 455 transition count 1303
Iterating global reduction 3 with 56 rules applied. Total rules applied 2726 place count 455 transition count 1303
Discarding 5 places :
Symmetric choice reduction at 3 with 5 rule applications. Total rules 2731 place count 450 transition count 1293
Iterating global reduction 3 with 5 rules applied. Total rules applied 2736 place count 450 transition count 1293
Drop transitions (Redundant composition of simpler transitions.) removed 8 transitions
Redundant transition composition rules discarded 8 transitions
Iterating global reduction 3 with 8 rules applied. Total rules applied 2744 place count 450 transition count 1285
Applied a total of 2744 rules in 2166 ms. Remains 450 /1628 variables (removed 1178) and now considering 1285/5962 (removed 4677) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2187 ms. Remains : 450/1628 places, 1285/5962 transitions.
[2025-06-01 10:21:17] [INFO ] Flow matrix only has 741 transitions (discarded 544 similar events)
Found an invariant !
This invariant on transitions {238=1, 356=1, 686=1, 732=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 2 ms.
This minimized invariant on transitions {255=1, 373=1, 703=1, 734=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 207 ms. (steps per millisecond=48 ) properties (out of 11) seen :[0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0]
FORMULA FunctionPointer-PT-c002-UpperBounds-09 2 TECHNIQUES TOPOLOGICAL COVER_WALK
Current structural bounds on expressions (after cover walk) : Max Seen:[0, 0, 1, 1, 4, 1, 5, 0, 1, 2] Max Struct:[2, +inf, +inf, +inf, +inf, 2, +inf, +inf, +inf, +inf]
[2025-06-01 10:21:18] [INFO ] Flow matrix only has 741 transitions (discarded 544 similar events)
// Phase 1: matrix 741 rows 450 cols
[2025-06-01 10:21:18] [INFO ] Computed 3 invariants in 8 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 1, 1, 4, 1, 5, 0, 1, 2] Max Struct:[2, +inf, +inf, +inf, +inf, 2, +inf, +inf, +inf, +inf]
RANDOM walk for 1000001 steps (2 resets) in 3727 ms. (268 steps per ms)
BEST_FIRST walk for 10000010 steps (20 resets) in 7822 ms. (1278 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 1671, 3744, 3, 4, 1, 9, 5, 1, 2] Max Struct:[2, +inf, +inf, +inf, +inf, 2, +inf, +inf, +inf, +inf]
[2025-06-01 10:21:30] [INFO ] Flow matrix only has 741 transitions (discarded 544 similar events)
[2025-06-01 10:21:30] [INFO ] Invariant cache hit.
[2025-06-01 10:21:30] [INFO ] [Real]Absence check using 3 positive place invariants in 7 ms returned sat
[2025-06-01 10:21:30] [INFO ] [Real]Absence check using state equation in 306 ms returned sat
[2025-06-01 10:21:30] [INFO ] State equation strengthened by 92 read => feed constraints.
[2025-06-01 10:21:30] [INFO ] [Real]Added 92 Read/Feed constraints in 50 ms returned sat
[2025-06-01 10:21:30] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:21:31] [INFO ] [Nat]Absence check using 3 positive place invariants in 7 ms returned sat
[2025-06-01 10:21:31] [INFO ] [Nat]Absence check using state equation in 319 ms returned sat
[2025-06-01 10:21:31] [INFO ] [Nat]Added 92 Read/Feed constraints in 72 ms returned sat
[2025-06-01 10:21:31] [INFO ] Computed and/alt/rep : 103/167/90 causal constraints (skipped 649 transitions) in 99 ms.
[2025-06-01 10:21:31] [INFO ] Added : 1 causal constraints over 1 iterations in 241 ms. Result :sat
Minimization took 414 ms.
[2025-06-01 10:21:32] [INFO ] [Real]Absence check using 3 positive place invariants in 7 ms returned sat
[2025-06-01 10:21:32] [INFO ] [Real]Absence check using state equation in 258 ms returned sat
[2025-06-01 10:21:32] [INFO ] [Real]Added 92 Read/Feed constraints in 62 ms returned sat
[2025-06-01 10:21:32] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:21:32] [INFO ] [Nat]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:21:33] [INFO ] [Nat]Absence check using state equation in 342 ms returned sat
[2025-06-01 10:21:33] [INFO ] [Nat]Added 92 Read/Feed constraints in 92 ms returned sat
[2025-06-01 10:21:33] [INFO ] Computed and/alt/rep : 103/167/90 causal constraints (skipped 649 transitions) in 102 ms.
[2025-06-01 10:21:33] [INFO ] Added : 1 causal constraints over 1 iterations in 236 ms. Result :sat
Minimization took 525 ms.
[2025-06-01 10:21:34] [INFO ] [Real]Absence check using 3 positive place invariants in 7 ms returned sat
[2025-06-01 10:21:34] [INFO ] [Real]Absence check using state equation in 309 ms returned sat
[2025-06-01 10:21:34] [INFO ] [Real]Added 92 Read/Feed constraints in 72 ms returned sat
[2025-06-01 10:21:34] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:21:34] [INFO ] [Nat]Absence check using 3 positive place invariants in 7 ms returned sat
[2025-06-01 10:21:35] [INFO ] [Nat]Absence check using state equation in 375 ms returned sat
[2025-06-01 10:21:35] [INFO ] [Nat]Added 92 Read/Feed constraints in 65 ms returned sat
[2025-06-01 10:21:35] [INFO ] Computed and/alt/rep : 103/167/90 causal constraints (skipped 649 transitions) in 127 ms.
[2025-06-01 10:21:35] [INFO ] Added : 1 causal constraints over 1 iterations in 282 ms. Result :sat
Minimization took 414 ms.
[2025-06-01 10:21:36] [INFO ] [Real]Absence check using 3 positive place invariants in 9 ms returned sat
[2025-06-01 10:21:36] [INFO ] [Real]Absence check using state equation in 347 ms returned sat
[2025-06-01 10:21:36] [INFO ] [Real]Added 92 Read/Feed constraints in 65 ms returned sat
[2025-06-01 10:21:36] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:21:36] [INFO ] [Nat]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:21:37] [INFO ] [Nat]Absence check using state equation in 383 ms returned sat
[2025-06-01 10:21:37] [INFO ] [Nat]Added 92 Read/Feed constraints in 73 ms returned sat
[2025-06-01 10:21:37] [INFO ] Deduced a trap composed of 83 places in 406 ms of which 5 ms to minimize.
[2025-06-01 10:21:37] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 484 ms
[2025-06-01 10:21:37] [INFO ] Computed and/alt/rep : 103/167/90 causal constraints (skipped 649 transitions) in 126 ms.
[2025-06-01 10:21:37] [INFO ] Added : 1 causal constraints over 1 iterations in 274 ms. Result :sat
Minimization took 392 ms.
[2025-06-01 10:21:38] [INFO ] [Real]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:21:38] [INFO ] [Real]Absence check using state equation in 370 ms returned sat
[2025-06-01 10:21:38] [INFO ] [Real]Added 92 Read/Feed constraints in 41 ms returned sat
[2025-06-01 10:21:38] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:21:38] [INFO ] [Nat]Absence check using 3 positive place invariants in 7 ms returned sat
[2025-06-01 10:21:39] [INFO ] [Nat]Absence check using state equation in 294 ms returned sat
[2025-06-01 10:21:39] [INFO ] [Nat]Added 92 Read/Feed constraints in 44 ms returned sat
[2025-06-01 10:21:39] [INFO ] Computed and/alt/rep : 103/167/90 causal constraints (skipped 649 transitions) in 95 ms.
[2025-06-01 10:21:39] [INFO ] Added : 15 causal constraints over 5 iterations in 453 ms. Result :sat
Minimization took 549 ms.
[2025-06-01 10:21:40] [INFO ] [Real]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 10:21:40] [INFO ] [Real]Absence check using state equation in 354 ms returned sat
[2025-06-01 10:21:40] [INFO ] [Real]Added 92 Read/Feed constraints in 65 ms returned sat
[2025-06-01 10:21:40] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:21:41] [INFO ] [Nat]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:21:41] [INFO ] [Nat]Absence check using state equation in 349 ms returned sat
[2025-06-01 10:21:41] [INFO ] [Nat]Added 92 Read/Feed constraints in 98 ms returned sat
[2025-06-01 10:21:42] [INFO ] Deduced a trap composed of 135 places in 510 ms of which 12 ms to minimize.
[2025-06-01 10:21:42] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 591 ms
[2025-06-01 10:21:42] [INFO ] Computed and/alt/rep : 103/167/90 causal constraints (skipped 649 transitions) in 135 ms.
[2025-06-01 10:21:42] [INFO ] Added : 1 causal constraints over 1 iterations in 287 ms. Result :sat
Minimization took 557 ms.
[2025-06-01 10:21:43] [INFO ] [Real]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:21:43] [INFO ] [Real]Absence check using state equation in 403 ms returned sat
[2025-06-01 10:21:43] [INFO ] [Real]Added 92 Read/Feed constraints in 72 ms returned sat
[2025-06-01 10:21:43] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:21:43] [INFO ] [Nat]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:21:44] [INFO ] [Nat]Absence check using state equation in 390 ms returned sat
[2025-06-01 10:21:44] [INFO ] [Nat]Added 92 Read/Feed constraints in 74 ms returned sat
[2025-06-01 10:21:44] [INFO ] Computed and/alt/rep : 103/167/90 causal constraints (skipped 649 transitions) in 137 ms.
[2025-06-01 10:21:44] [INFO ] Added : 10 causal constraints over 4 iterations in 492 ms. Result :sat
Minimization took 557 ms.
[2025-06-01 10:21:45] [INFO ] [Real]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:21:45] [INFO ] [Real]Absence check using state equation in 409 ms returned sat
[2025-06-01 10:21:46] [INFO ] [Real]Added 92 Read/Feed constraints in 86 ms returned sat
[2025-06-01 10:21:46] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:21:46] [INFO ] [Nat]Absence check using 3 positive place invariants in 11 ms returned sat
[2025-06-01 10:21:46] [INFO ] [Nat]Absence check using state equation in 399 ms returned sat
[2025-06-01 10:21:46] [INFO ] [Nat]Added 92 Read/Feed constraints in 74 ms returned sat
[2025-06-01 10:21:47] [INFO ] Deduced a trap composed of 90 places in 596 ms of which 9 ms to minimize.
[2025-06-01 10:21:47] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 683 ms
[2025-06-01 10:21:47] [INFO ] Computed and/alt/rep : 103/167/90 causal constraints (skipped 649 transitions) in 154 ms.
[2025-06-01 10:21:47] [INFO ] Added : 1 causal constraints over 1 iterations in 318 ms. Result :sat
Minimization took 530 ms.
[2025-06-01 10:21:48] [INFO ] [Real]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:21:48] [INFO ] [Real]Absence check using state equation in 402 ms returned sat
[2025-06-01 10:21:48] [INFO ] [Real]Added 92 Read/Feed constraints in 86 ms returned sat
[2025-06-01 10:21:49] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:21:49] [INFO ] [Nat]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:21:49] [INFO ] [Nat]Absence check using state equation in 397 ms returned sat
[2025-06-01 10:21:49] [INFO ] [Nat]Added 92 Read/Feed constraints in 74 ms returned sat
[2025-06-01 10:21:49] [INFO ] Computed and/alt/rep : 103/167/90 causal constraints (skipped 649 transitions) in 98 ms.
[2025-06-01 10:21:49] [INFO ] Added : 5 causal constraints over 2 iterations in 286 ms. Result :sat
Minimization took 473 ms.
[2025-06-01 10:21:50] [INFO ] [Real]Absence check using 3 positive place invariants in 11 ms returned sat
[2025-06-01 10:21:51] [INFO ] [Real]Absence check using state equation in 386 ms returned sat
[2025-06-01 10:21:51] [INFO ] [Real]Added 92 Read/Feed constraints in 88 ms returned sat
[2025-06-01 10:21:51] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:21:51] [INFO ] [Nat]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:21:51] [INFO ] [Nat]Absence check using state equation in 364 ms returned sat
[2025-06-01 10:21:51] [INFO ] [Nat]Added 92 Read/Feed constraints in 135 ms returned sat
[2025-06-01 10:21:52] [INFO ] Deduced a trap composed of 119 places in 584 ms of which 6 ms to minimize.
[2025-06-01 10:21:52] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 663 ms
[2025-06-01 10:21:52] [INFO ] Computed and/alt/rep : 103/167/90 causal constraints (skipped 649 transitions) in 80 ms.
[2025-06-01 10:21:52] [INFO ] Added : 2 causal constraints over 1 iterations in 212 ms. Result :sat
Minimization took 365 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 1671, 3744, 3, 4, 1, 9, 5, 1, 2] Max Struct:[2, +inf, +inf, +inf, +inf, 2, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[2, 1671, 3744, 3, 4, 1, 9, 5, 1, 2] Max Struct:[2, +inf, +inf, +inf, +inf, 2, +inf, +inf, +inf, +inf]
Support contains 10 out of 450 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 450/450 places, 1285/1285 transitions.
Applied a total of 0 rules in 58 ms. Remains 450 /450 variables (removed 0) and now considering 1285/1285 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 58 ms. Remains : 450/450 places, 1285/1285 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 450/450 places, 1285/1285 transitions.
Applied a total of 0 rules in 57 ms. Remains 450 /450 variables (removed 0) and now considering 1285/1285 (removed 0) transitions.
[2025-06-01 10:21:53] [INFO ] Flow matrix only has 741 transitions (discarded 544 similar events)
[2025-06-01 10:21:53] [INFO ] Invariant cache hit.
[2025-06-01 10:21:53] [INFO ] Implicit Places using invariants in 542 ms returned []
[2025-06-01 10:21:53] [INFO ] Flow matrix only has 741 transitions (discarded 544 similar events)
[2025-06-01 10:21:53] [INFO ] Invariant cache hit.
[2025-06-01 10:21:54] [INFO ] State equation strengthened by 92 read => feed constraints.
[2025-06-01 10:21:56] [INFO ] Implicit Places using invariants and state equation in 2834 ms returned []
Implicit Place search using SMT with State Equation took 3384 ms to find 0 implicit places.
[2025-06-01 10:21:56] [INFO ] Redundant transitions in 134 ms returned []
Running 1283 sub problems to find dead transitions.
[2025-06-01 10:21:56] [INFO ] Flow matrix only has 741 transitions (discarded 544 similar events)
[2025-06-01 10:21:56] [INFO ] Invariant cache hit.
[2025-06-01 10:21:57] [INFO ] State equation strengthened by 92 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/450 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1283 unsolved
[2025-06-01 10:22:22] [INFO ] Deduced a trap composed of 131 places in 394 ms of which 6 ms to minimize.
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(s247 0.0)
(s248 0.0)
(s249 0.0)
(s250 0.0)
(s251 0.0)
(s252 0.0)
(s253 0.0)
(s254 0.0)
(s255 0.0)
(s256 0.0)
(s257 0.0)
(s258 0.0)
(s259 0.0)
(s260 0.0)
(s261 0.0)
(s262 0.0)
(s263 0.0)
(s264 0.0)
(s265 0.0)
(s266 0.0)
(s267 0.0)
(s268 0.0)
(s269 0.0)
(s270 0.0)
(s271 0.0)
(s272 0.0)
(s273 0.0)
(s274 0.0)
(s275 0.0)
(s276 0.0)
(s277 0.0)
(s278 0.0)
(s279 0.0)
(s280 0.0)
(s281 0.0)
(s282 0.0)
(s283 0.0)
(s284 0.0)
(s285 0.0)
(s286 0.0)
(s287 0.0)
(s288 0.0)
(s289 0.0)
(s290 0.0)
(s291 0.0)
(s292 0.0)
(s293 0.0)
(s294 0.0)
(s295 0.0)
(s296 0.0)
(s297 0.0)
(s298 0.0)
(s299 0.0)
(s300 0.0)
(s301 0.0)
(s302 0.0)
(s303 0.0)
(s304 0.0)
(s305 0.0)
(s306 0.0)
(s307 0.0)
(s308 0.0)
(s309 0.0)
(s310 0.0)
(s311 0.0)
(s312 0.0)
(s313 0.0)
(s314 0.0)
(s315 0.0)
(s316 0.0)
(s317 0.0)
(s318 0.0)
(s319 0.0)
(s320 0.0)
(s321 0.0)
(s322 0.0)
(s323 0.0)
(s324 0.0)
(s325 0.0)
(s326 0.0)
(s327 0.0)
(s328 0.0)
(s329 1.0)
(s330 1.0)
(s331 1.0)
(s332 1.0)
(s333 1.0)
(s334 1.0)
(s335 1.0)
(s336 1.0)
(s337 1.0)
(s338 1.0)
(s339 1.0)
(s340 1.0)
(s341 1.0)
(s342 1.0)
(s343 1.0)
(s344 1.0)
(s345 1.0)
(s346 1.0)
(s347 1.0)
(s348 0.0)
(s349 0.0)
(s350 0.0)
(s351 0.0)
(s352 0.0)
(s353 0.0)
(s354 0.0)
(s355 0.0)
(s356 1.0)
(s357 1.0)
(s358 1.0)
(s359 1.0)
(s360 1.0)
(s361 1.0)
(s362 1.0)
(s363 1.0)
(s364 1.0)
(s365 1.0)
(s366 1.0)
(s367 1.0)
(s368 1.0)
(s369 1.0)
(s370 1.0)
(s371 1.0)
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(s375 1.0)
(s376 1.0)
(s377 1.0)
(s378 timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 450/1191 variables, and 4 constraints, problems are : Problem set: 0 solved, 1283 unsolved in 30079 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/450 constraints, ReadFeed: 0/92 constraints, PredecessorRefiner: 1283/1283 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1283 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/450 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1283 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/450 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1283 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/450 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1283 unsolved
At refinement iteration 3 (OVERLAPS) 741/1191 variables, 450/454 constraints. Problems are: Problem set: 0 solved, 1283 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1191 variables, 92/546 constraints. Problems are: Problem set: 0 solved, 1283 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1191/1191 variables, and 1829 constraints, problems are : Problem set: 0 solved, 1283 unsolved in 31377 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 450/450 constraints, ReadFeed: 92/92 constraints, PredecessorRefiner: 1283/1283 constraints, Known Traps: 1/1 constraints]
After SMT, in 68326ms problems are : Problem set: 0 solved, 1283 unsolved
Search for dead transitions found 0 dead transitions in 68422ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 72036 ms. Remains : 450/450 places, 1285/1285 transitions.
[2025-06-01 10:23:05] [INFO ] Flow matrix only has 741 transitions (discarded 544 similar events)
Found an invariant !
This invariant on transitions {238=1, 356=1, 686=1, 732=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {255=1, 373=1, 703=1, 734=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 136 ms. (steps per millisecond=73 ) properties (out of 10) seen :[0, 0, 0, 0, 1, 0, 2147483647, 0, 0, 0]
FORMULA FunctionPointer-PT-c002-UpperBounds-00 2 TECHNIQUES TOPOLOGICAL COVER_WALK
Current structural bounds on expressions (after cover walk) : Max Seen:[1671, 3744, 3, 4, 1, +inf, 5, 1, 2] Max Struct:[+inf, +inf, +inf, +inf, 2, +inf, +inf, +inf, +inf]
[2025-06-01 10:23:05] [INFO ] Flow matrix only has 741 transitions (discarded 544 similar events)
[2025-06-01 10:23:05] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[1671, 3744, 3, 4, 1, +inf, 5, 1, 2] Max Struct:[+inf, +inf, +inf, +inf, 2, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 3795 ms. (263 steps per ms)
FORMULA FunctionPointer-PT-c002-UpperBounds-12 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 8000006 steps (16 resets) in 6144 ms. (1301 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1816, 3744, 3, 519, 1, 5, 4, 2] Max Struct:[+inf, +inf, +inf, +inf, 2, +inf, +inf, +inf]
[2025-06-01 10:23:15] [INFO ] Flow matrix only has 741 transitions (discarded 544 similar events)
[2025-06-01 10:23:15] [INFO ] Invariant cache hit.
[2025-06-01 10:23:15] [INFO ] [Real]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 10:23:16] [INFO ] [Real]Absence check using state equation in 264 ms returned sat
[2025-06-01 10:23:16] [INFO ] State equation strengthened by 92 read => feed constraints.
[2025-06-01 10:23:16] [INFO ] [Real]Added 92 Read/Feed constraints in 112 ms returned sat
[2025-06-01 10:23:16] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:23:16] [INFO ] [Nat]Absence check using 3 positive place invariants in 7 ms returned sat
[2025-06-01 10:23:16] [INFO ] [Nat]Absence check using state equation in 374 ms returned sat
[2025-06-01 10:23:16] [INFO ] [Nat]Added 92 Read/Feed constraints in 103 ms returned sat
[2025-06-01 10:23:17] [INFO ] Computed and/alt/rep : 103/167/90 causal constraints (skipped 649 transitions) in 141 ms.
[2025-06-01 10:23:17] [INFO ] Added : 1 causal constraints over 1 iterations in 305 ms. Result :sat
Minimization took 557 ms.
[2025-06-01 10:23:17] [INFO ] [Real]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:23:18] [INFO ] [Real]Absence check using state equation in 411 ms returned sat
[2025-06-01 10:23:18] [INFO ] [Real]Added 92 Read/Feed constraints in 111 ms returned sat
[2025-06-01 10:23:18] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:23:18] [INFO ] [Nat]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:23:19] [INFO ] [Nat]Absence check using state equation in 359 ms returned sat
[2025-06-01 10:23:19] [INFO ] [Nat]Added 92 Read/Feed constraints in 44 ms returned sat
[2025-06-01 10:23:19] [INFO ] Computed and/alt/rep : 103/167/90 causal constraints (skipped 649 transitions) in 90 ms.
[2025-06-01 10:23:19] [INFO ] Added : 1 causal constraints over 1 iterations in 194 ms. Result :sat
Minimization took 377 ms.
[2025-06-01 10:23:19] [INFO ] [Real]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:23:20] [INFO ] [Real]Absence check using state equation in 356 ms returned sat
[2025-06-01 10:23:20] [INFO ] [Real]Added 92 Read/Feed constraints in 75 ms returned sat
[2025-06-01 10:23:20] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:23:20] [INFO ] [Nat]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:23:20] [INFO ] [Nat]Absence check using state equation in 380 ms returned sat
[2025-06-01 10:23:20] [INFO ] [Nat]Added 92 Read/Feed constraints in 59 ms returned sat
[2025-06-01 10:23:21] [INFO ] Deduced a trap composed of 83 places in 413 ms of which 5 ms to minimize.
[2025-06-01 10:23:21] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 513 ms
[2025-06-01 10:23:21] [INFO ] Computed and/alt/rep : 103/167/90 causal constraints (skipped 649 transitions) in 98 ms.
[2025-06-01 10:23:21] [INFO ] Added : 1 causal constraints over 1 iterations in 231 ms. Result :sat
Minimization took 519 ms.
[2025-06-01 10:23:22] [INFO ] [Real]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:23:22] [INFO ] [Real]Absence check using state equation in 368 ms returned sat
[2025-06-01 10:23:22] [INFO ] [Real]Added 92 Read/Feed constraints in 84 ms returned sat
[2025-06-01 10:23:22] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:23:22] [INFO ] [Nat]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:23:23] [INFO ] [Nat]Absence check using state equation in 396 ms returned sat
[2025-06-01 10:23:23] [INFO ] [Nat]Added 92 Read/Feed constraints in 67 ms returned sat
[2025-06-01 10:23:23] [INFO ] Computed and/alt/rep : 103/167/90 causal constraints (skipped 649 transitions) in 139 ms.
[2025-06-01 10:23:23] [INFO ] Added : 7 causal constraints over 3 iterations in 425 ms. Result :sat
Minimization took 549 ms.
[2025-06-01 10:23:24] [INFO ] [Real]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:23:24] [INFO ] [Real]Absence check using state equation in 356 ms returned sat
[2025-06-01 10:23:25] [INFO ] [Real]Added 92 Read/Feed constraints in 48 ms returned sat
[2025-06-01 10:23:25] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:23:25] [INFO ] [Nat]Absence check using 3 positive place invariants in 11 ms returned sat
[2025-06-01 10:23:25] [INFO ] [Nat]Absence check using state equation in 405 ms returned sat
[2025-06-01 10:23:25] [INFO ] [Nat]Added 92 Read/Feed constraints in 114 ms returned sat
[2025-06-01 10:23:26] [INFO ] Deduced a trap composed of 135 places in 439 ms of which 7 ms to minimize.
[2025-06-01 10:23:26] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 525 ms
[2025-06-01 10:23:26] [INFO ] Computed and/alt/rep : 103/167/90 causal constraints (skipped 649 transitions) in 130 ms.
[2025-06-01 10:23:26] [INFO ] Added : 1 causal constraints over 1 iterations in 290 ms. Result :sat
Minimization took 534 ms.
[2025-06-01 10:23:27] [INFO ] [Real]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:23:27] [INFO ] [Real]Absence check using state equation in 379 ms returned sat
[2025-06-01 10:23:27] [INFO ] [Real]Added 92 Read/Feed constraints in 94 ms returned sat
[2025-06-01 10:23:27] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:23:27] [INFO ] [Nat]Absence check using 3 positive place invariants in 7 ms returned sat
[2025-06-01 10:23:28] [INFO ] [Nat]Absence check using state equation in 387 ms returned sat
[2025-06-01 10:23:28] [INFO ] [Nat]Added 92 Read/Feed constraints in 79 ms returned sat
[2025-06-01 10:23:29] [INFO ] Deduced a trap composed of 90 places in 634 ms of which 8 ms to minimize.
[2025-06-01 10:23:29] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 723 ms
[2025-06-01 10:23:29] [INFO ] Computed and/alt/rep : 103/167/90 causal constraints (skipped 649 transitions) in 158 ms.
[2025-06-01 10:23:29] [INFO ] Added : 1 causal constraints over 1 iterations in 315 ms. Result :sat
Minimization took 548 ms.
[2025-06-01 10:23:30] [INFO ] [Real]Absence check using 3 positive place invariants in 11 ms returned sat
[2025-06-01 10:23:30] [INFO ] [Real]Absence check using state equation in 411 ms returned sat
[2025-06-01 10:23:30] [INFO ] [Real]Added 92 Read/Feed constraints in 70 ms returned sat
[2025-06-01 10:23:30] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:23:30] [INFO ] [Nat]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:23:31] [INFO ] [Nat]Absence check using state equation in 365 ms returned sat
[2025-06-01 10:23:31] [INFO ] [Nat]Added 92 Read/Feed constraints in 73 ms returned sat
[2025-06-01 10:23:31] [INFO ] Computed and/alt/rep : 103/167/90 causal constraints (skipped 649 transitions) in 139 ms.
[2025-06-01 10:23:31] [INFO ] Added : 5 causal constraints over 2 iterations in 333 ms. Result :sat
Minimization took 369 ms.
[2025-06-01 10:23:32] [INFO ] [Real]Absence check using 3 positive place invariants in 11 ms returned sat
[2025-06-01 10:23:32] [INFO ] [Real]Absence check using state equation in 397 ms returned sat
[2025-06-01 10:23:32] [INFO ] [Real]Added 92 Read/Feed constraints in 62 ms returned sat
[2025-06-01 10:23:32] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:23:32] [INFO ] [Nat]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 10:23:33] [INFO ] [Nat]Absence check using state equation in 299 ms returned sat
[2025-06-01 10:23:33] [INFO ] [Nat]Added 92 Read/Feed constraints in 96 ms returned sat
[2025-06-01 10:23:33] [INFO ] Deduced a trap composed of 119 places in 462 ms of which 8 ms to minimize.
[2025-06-01 10:23:33] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 539 ms
[2025-06-01 10:23:33] [INFO ] Computed and/alt/rep : 103/167/90 causal constraints (skipped 649 transitions) in 139 ms.
[2025-06-01 10:23:34] [INFO ] Added : 2 causal constraints over 1 iterations in 309 ms. Result :sat
Minimization took 386 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1816, 3744, 3, 519, 1, 5, 4, 2] Max Struct:[+inf, +inf, +inf, +inf, 2, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1816, 3744, 3, 519, 1, 5, 4, 2] Max Struct:[+inf, +inf, +inf, +inf, 2, +inf, +inf, +inf]
Support contains 8 out of 450 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 450/450 places, 1285/1285 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 449 transition count 1283
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 449 transition count 1283
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 4 place count 449 transition count 1281
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 5 place count 448 transition count 1279
Iterating global reduction 1 with 1 rules applied. Total rules applied 6 place count 448 transition count 1279
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 7 place count 447 transition count 1277
Iterating global reduction 1 with 1 rules applied. Total rules applied 8 place count 447 transition count 1277
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 9 place count 446 transition count 1273
Iterating global reduction 1 with 1 rules applied. Total rules applied 10 place count 446 transition count 1273
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 11 place count 445 transition count 1271
Iterating global reduction 1 with 1 rules applied. Total rules applied 12 place count 445 transition count 1271
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 13 place count 444 transition count 1269
Iterating global reduction 1 with 1 rules applied. Total rules applied 14 place count 444 transition count 1269
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 15 place count 443 transition count 1267
Iterating global reduction 1 with 1 rules applied. Total rules applied 16 place count 443 transition count 1267
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 17 place count 442 transition count 1265
Iterating global reduction 1 with 1 rules applied. Total rules applied 18 place count 442 transition count 1265
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 19 place count 441 transition count 1263
Iterating global reduction 1 with 1 rules applied. Total rules applied 20 place count 441 transition count 1263
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 21 place count 440 transition count 1261
Iterating global reduction 1 with 1 rules applied. Total rules applied 22 place count 440 transition count 1261
Applied a total of 22 rules in 228 ms. Remains 440 /450 variables (removed 10) and now considering 1261/1285 (removed 24) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 229 ms. Remains : 440/450 places, 1261/1285 transitions.
[2025-06-01 10:23:34] [INFO ] Flow matrix only has 725 transitions (discarded 536 similar events)
Found an invariant !
This invariant on transitions {199=1, 307=1, 636=1, 720=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 360=1, 561=1, 714=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 71 ms. (steps per millisecond=140 ) properties (out of 8) seen :[0, 0, 0, 2147483647, 0, 0, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[1816, 3744, 3, +inf, 1, 5, 4, 2] Max Struct:[+inf, +inf, +inf, +inf, 2, +inf, +inf, +inf]
[2025-06-01 10:23:35] [INFO ] Flow matrix only has 725 transitions (discarded 536 similar events)
// Phase 1: matrix 725 rows 440 cols
[2025-06-01 10:23:35] [INFO ] Computed 3 invariants in 5 ms
Current structural bounds on expressions (after invariants) : Max Seen:[1816, 3744, 3, +inf, 1, 5, 4, 2] Max Struct:[+inf, +inf, +inf, +inf, 2, +inf, +inf, +inf]
RANDOM walk for 1000002 steps (2 resets) in 3368 ms. (296 steps per ms)
FORMULA FunctionPointer-PT-c002-UpperBounds-10 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 7000006 steps (14 resets) in 5686 ms. (1230 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1816, 3744, 3, 1, 5, 4, 2] Max Struct:[+inf, +inf, +inf, 2, +inf, +inf, +inf]
[2025-06-01 10:23:44] [INFO ] Flow matrix only has 725 transitions (discarded 536 similar events)
[2025-06-01 10:23:44] [INFO ] Invariant cache hit.
[2025-06-01 10:23:44] [INFO ] [Real]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:23:44] [INFO ] [Real]Absence check using state equation in 356 ms returned sat
[2025-06-01 10:23:44] [INFO ] State equation strengthened by 89 read => feed constraints.
[2025-06-01 10:23:44] [INFO ] [Real]Added 89 Read/Feed constraints in 75 ms returned sat
[2025-06-01 10:23:44] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:23:45] [INFO ] [Nat]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:23:45] [INFO ] [Nat]Absence check using state equation in 347 ms returned sat
[2025-06-01 10:23:45] [INFO ] [Nat]Added 89 Read/Feed constraints in 52 ms returned sat
[2025-06-01 10:23:46] [INFO ] Deduced a trap composed of 75 places in 519 ms of which 7 ms to minimize.
[2025-06-01 10:23:46] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 641 ms
[2025-06-01 10:23:46] [INFO ] Computed and/alt/rep : 92/136/86 causal constraints (skipped 637 transitions) in 135 ms.
[2025-06-01 10:23:46] [INFO ] Added : 1 causal constraints over 1 iterations in 257 ms. Result :sat
Minimization took 524 ms.
[2025-06-01 10:23:47] [INFO ] [Real]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 10:23:47] [INFO ] [Real]Absence check using state equation in 278 ms returned sat
[2025-06-01 10:23:47] [INFO ] [Real]Added 89 Read/Feed constraints in 58 ms returned sat
[2025-06-01 10:23:47] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:23:47] [INFO ] [Nat]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 10:23:47] [INFO ] [Nat]Absence check using state equation in 261 ms returned sat
[2025-06-01 10:23:47] [INFO ] [Nat]Added 89 Read/Feed constraints in 32 ms returned sat
[2025-06-01 10:23:48] [INFO ] Deduced a trap composed of 75 places in 493 ms of which 7 ms to minimize.
[2025-06-01 10:23:48] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 579 ms
[2025-06-01 10:23:48] [INFO ] Computed and/alt/rep : 92/136/86 causal constraints (skipped 637 transitions) in 147 ms.
[2025-06-01 10:23:48] [INFO ] Added : 1 causal constraints over 1 iterations in 269 ms. Result :sat
Minimization took 381 ms.
[2025-06-01 10:23:49] [INFO ] [Real]Absence check using 3 positive place invariants in 7 ms returned sat
[2025-06-01 10:23:49] [INFO ] [Real]Absence check using state equation in 317 ms returned sat
[2025-06-01 10:23:49] [INFO ] [Real]Added 89 Read/Feed constraints in 53 ms returned sat
[2025-06-01 10:23:49] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:23:49] [INFO ] [Nat]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:23:50] [INFO ] [Nat]Absence check using state equation in 346 ms returned sat
[2025-06-01 10:23:50] [INFO ] [Nat]Added 89 Read/Feed constraints in 42 ms returned sat
[2025-06-01 10:23:50] [INFO ] Deduced a trap composed of 75 places in 471 ms of which 5 ms to minimize.
[2025-06-01 10:23:50] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 542 ms
[2025-06-01 10:23:50] [INFO ] Computed and/alt/rep : 92/136/86 causal constraints (skipped 637 transitions) in 142 ms.
[2025-06-01 10:23:50] [INFO ] Added : 1 causal constraints over 1 iterations in 270 ms. Result :sat
Minimization took 370 ms.
[2025-06-01 10:23:51] [INFO ] [Real]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 10:23:51] [INFO ] [Real]Absence check using state equation in 315 ms returned sat
[2025-06-01 10:23:51] [INFO ] [Real]Added 89 Read/Feed constraints in 57 ms returned sat
[2025-06-01 10:23:51] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:23:52] [INFO ] [Nat]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:23:52] [INFO ] [Nat]Absence check using state equation in 400 ms returned sat
[2025-06-01 10:23:52] [INFO ] [Nat]Added 89 Read/Feed constraints in 99 ms returned sat
[2025-06-01 10:23:52] [INFO ] Deduced a trap composed of 135 places in 347 ms of which 5 ms to minimize.
[2025-06-01 10:23:52] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 418 ms
[2025-06-01 10:23:53] [INFO ] Computed and/alt/rep : 92/136/86 causal constraints (skipped 637 transitions) in 133 ms.
[2025-06-01 10:23:53] [INFO ] Added : 1 causal constraints over 1 iterations in 288 ms. Result :sat
Minimization took 578 ms.
[2025-06-01 10:23:53] [INFO ] [Real]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:23:54] [INFO ] [Real]Absence check using state equation in 399 ms returned sat
[2025-06-01 10:23:54] [INFO ] [Real]Added 89 Read/Feed constraints in 53 ms returned sat
[2025-06-01 10:23:54] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:23:54] [INFO ] [Nat]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:23:55] [INFO ] [Nat]Absence check using state equation in 399 ms returned sat
[2025-06-01 10:23:55] [INFO ] [Nat]Added 89 Read/Feed constraints in 41 ms returned sat
[2025-06-01 10:23:55] [INFO ] Deduced a trap composed of 75 places in 597 ms of which 7 ms to minimize.
[2025-06-01 10:23:55] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 709 ms
[2025-06-01 10:23:55] [INFO ] Computed and/alt/rep : 92/136/86 causal constraints (skipped 637 transitions) in 126 ms.
[2025-06-01 10:23:56] [INFO ] Added : 1 causal constraints over 1 iterations in 264 ms. Result :sat
Minimization took 516 ms.
[2025-06-01 10:23:56] [INFO ] [Real]Absence check using 3 positive place invariants in 9 ms returned sat
[2025-06-01 10:23:57] [INFO ] [Real]Absence check using state equation in 325 ms returned sat
[2025-06-01 10:23:57] [INFO ] [Real]Added 89 Read/Feed constraints in 60 ms returned sat
[2025-06-01 10:23:57] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:23:57] [INFO ] [Nat]Absence check using 3 positive place invariants in 9 ms returned sat
[2025-06-01 10:23:57] [INFO ] [Nat]Absence check using state equation in 362 ms returned sat
[2025-06-01 10:23:57] [INFO ] [Nat]Added 89 Read/Feed constraints in 71 ms returned sat
[2025-06-01 10:23:58] [INFO ] Deduced a trap composed of 90 places in 606 ms of which 7 ms to minimize.
[2025-06-01 10:23:58] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 685 ms
[2025-06-01 10:23:58] [INFO ] Computed and/alt/rep : 92/136/86 causal constraints (skipped 637 transitions) in 128 ms.
[2025-06-01 10:23:58] [INFO ] Added : 7 causal constraints over 3 iterations in 410 ms. Result :sat
Minimization took 561 ms.
[2025-06-01 10:23:59] [INFO ] [Real]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:23:59] [INFO ] [Real]Absence check using state equation in 352 ms returned sat
[2025-06-01 10:24:00] [INFO ] [Real]Added 89 Read/Feed constraints in 61 ms returned sat
[2025-06-01 10:24:00] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:24:00] [INFO ] [Nat]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:24:00] [INFO ] [Nat]Absence check using state equation in 407 ms returned sat
[2025-06-01 10:24:00] [INFO ] [Nat]Added 89 Read/Feed constraints in 115 ms returned sat
[2025-06-01 10:24:01] [INFO ] Deduced a trap composed of 107 places in 608 ms of which 7 ms to minimize.
[2025-06-01 10:24:02] [INFO ] Deduced a trap composed of 78 places in 614 ms of which 7 ms to minimize.
[2025-06-01 10:24:02] [INFO ] Deduced a trap composed of 135 places in 529 ms of which 7 ms to minimize.
[2025-06-01 10:24:02] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 1929 ms
[2025-06-01 10:24:02] [INFO ] Computed and/alt/rep : 92/136/86 causal constraints (skipped 637 transitions) in 133 ms.
[2025-06-01 10:24:02] [INFO ] Added : 2 causal constraints over 1 iterations in 282 ms. Result :sat
Minimization took 531 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1816, 3744, 3, 1, 5, 4, 2] Max Struct:[+inf, +inf, +inf, 2, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1816, 3744, 3, 1, 5, 4, 2] Max Struct:[+inf, +inf, +inf, 2, +inf, +inf, +inf]
Support contains 7 out of 440 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 440/440 places, 1261/1261 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 439 transition count 1259
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 439 transition count 1259
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 4 place count 439 transition count 1257
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 5 place count 438 transition count 1255
Iterating global reduction 1 with 1 rules applied. Total rules applied 6 place count 438 transition count 1255
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 7 place count 437 transition count 1253
Iterating global reduction 1 with 1 rules applied. Total rules applied 8 place count 437 transition count 1253
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 9 place count 436 transition count 1249
Iterating global reduction 1 with 1 rules applied. Total rules applied 10 place count 436 transition count 1249
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 11 place count 435 transition count 1247
Iterating global reduction 1 with 1 rules applied. Total rules applied 12 place count 435 transition count 1247
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 13 place count 434 transition count 1245
Iterating global reduction 1 with 1 rules applied. Total rules applied 14 place count 434 transition count 1245
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 15 place count 433 transition count 1243
Iterating global reduction 1 with 1 rules applied. Total rules applied 16 place count 433 transition count 1243
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 17 place count 432 transition count 1241
Iterating global reduction 1 with 1 rules applied. Total rules applied 18 place count 432 transition count 1241
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 19 place count 431 transition count 1239
Iterating global reduction 1 with 1 rules applied. Total rules applied 20 place count 431 transition count 1239
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 21 place count 430 transition count 1237
Iterating global reduction 1 with 1 rules applied. Total rules applied 22 place count 430 transition count 1237
Applied a total of 22 rules in 195 ms. Remains 430 /440 variables (removed 10) and now considering 1237/1261 (removed 24) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 196 ms. Remains : 430/440 places, 1237/1261 transitions.
[2025-06-01 10:24:03] [INFO ] Flow matrix only has 709 transitions (discarded 528 similar events)
Found an invariant !
This invariant on transitions {213=1, 311=1, 511=1, 700=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {257=1, 355=1, 683=1, 702=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 68 ms. (steps per millisecond=147 ) properties (out of 7) seen :[0, 0, 0, 0, 0, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[1816, 3744, 3, 1, 5, 4, 2] Max Struct:[+inf, +inf, +inf, 2, +inf, +inf, +inf]
[2025-06-01 10:24:04] [INFO ] Flow matrix only has 709 transitions (discarded 528 similar events)
// Phase 1: matrix 709 rows 430 cols
[2025-06-01 10:24:04] [INFO ] Computed 3 invariants in 3 ms
Current structural bounds on expressions (after invariants) : Max Seen:[1816, 3744, 3, 1, 5, 4, 2] Max Struct:[+inf, +inf, +inf, 2, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 3818 ms. (261 steps per ms)
BEST_FIRST walk for 7000005 steps (14 resets) in 5735 ms. (1220 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1816, 3744, 3, 1, 3906, 4, 2] Max Struct:[+inf, +inf, +inf, 2, +inf, +inf, +inf]
[2025-06-01 10:24:13] [INFO ] Flow matrix only has 709 transitions (discarded 528 similar events)
[2025-06-01 10:24:13] [INFO ] Invariant cache hit.
[2025-06-01 10:24:13] [INFO ] [Real]Absence check using 3 positive place invariants in 7 ms returned sat
[2025-06-01 10:24:14] [INFO ] [Real]Absence check using state equation in 305 ms returned sat
[2025-06-01 10:24:14] [INFO ] State equation strengthened by 86 read => feed constraints.
[2025-06-01 10:24:14] [INFO ] [Real]Added 86 Read/Feed constraints in 47 ms returned sat
[2025-06-01 10:24:14] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:24:14] [INFO ] [Nat]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:24:14] [INFO ] [Nat]Absence check using state equation in 365 ms returned sat
[2025-06-01 10:24:14] [INFO ] [Nat]Added 86 Read/Feed constraints in 56 ms returned sat
[2025-06-01 10:24:15] [INFO ] Deduced a trap composed of 77 places in 610 ms of which 7 ms to minimize.
[2025-06-01 10:24:15] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 696 ms
[2025-06-01 10:24:15] [INFO ] Computed and/alt/rep : 210/1262/210 causal constraints (skipped 497 transitions) in 135 ms.
[2025-06-01 10:24:16] [INFO ] Deduced a trap composed of 98 places in 572 ms of which 7 ms to minimize.
[2025-06-01 10:24:17] [INFO ] Deduced a trap composed of 94 places in 562 ms of which 7 ms to minimize.
[2025-06-01 10:24:18] [INFO ] Deduced a trap composed of 82 places in 590 ms of which 7 ms to minimize.
[2025-06-01 10:24:18] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 1953 ms
[2025-06-01 10:24:18] [INFO ] Added : 5 causal constraints over 3 iterations in 2509 ms. Result :sat
Minimization took 375 ms.
[2025-06-01 10:24:18] [INFO ] [Real]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:24:19] [INFO ] [Real]Absence check using state equation in 399 ms returned sat
[2025-06-01 10:24:19] [INFO ] [Real]Added 86 Read/Feed constraints in 86 ms returned sat
[2025-06-01 10:24:19] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:24:19] [INFO ] [Nat]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:24:19] [INFO ] [Nat]Absence check using state equation in 373 ms returned sat
[2025-06-01 10:24:19] [INFO ] [Nat]Added 86 Read/Feed constraints in 76 ms returned sat
[2025-06-01 10:24:20] [INFO ] Deduced a trap composed of 83 places in 560 ms of which 7 ms to minimize.
[2025-06-01 10:24:21] [INFO ] Deduced a trap composed of 82 places in 646 ms of which 8 ms to minimize.
[2025-06-01 10:24:21] [INFO ] Deduced a trap composed of 78 places in 562 ms of which 7 ms to minimize.
[2025-06-01 10:24:22] [INFO ] Deduced a trap composed of 77 places in 605 ms of which 7 ms to minimize.
[2025-06-01 10:24:23] [INFO ] Deduced a trap composed of 75 places in 593 ms of which 7 ms to minimize.
[2025-06-01 10:24:23] [INFO ] Deduced a trap composed of 74 places in 558 ms of which 6 ms to minimize.
[2025-06-01 10:24:23] [INFO ] Trap strengthening (SAT) tested/added 7/6 trap constraints in 3867 ms
[2025-06-01 10:24:23] [INFO ] Computed and/alt/rep : 210/1262/210 causal constraints (skipped 497 transitions) in 127 ms.
[2025-06-01 10:24:24] [INFO ] Added : 5 causal constraints over 3 iterations in 494 ms. Result :sat
Minimization took 534 ms.
[2025-06-01 10:24:24] [INFO ] [Real]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:24:25] [INFO ] [Real]Absence check using state equation in 352 ms returned sat
[2025-06-01 10:24:25] [INFO ] [Real]Added 86 Read/Feed constraints in 74 ms returned sat
[2025-06-01 10:24:25] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:24:25] [INFO ] [Nat]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:24:25] [INFO ] [Nat]Absence check using state equation in 394 ms returned sat
[2025-06-01 10:24:26] [INFO ] [Nat]Added 86 Read/Feed constraints in 77 ms returned sat
[2025-06-01 10:24:26] [INFO ] Deduced a trap composed of 77 places in 380 ms of which 5 ms to minimize.
[2025-06-01 10:24:26] [INFO ] Deduced a trap composed of 83 places in 485 ms of which 14 ms to minimize.
[2025-06-01 10:24:26] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 955 ms
[2025-06-01 10:24:27] [INFO ] Computed and/alt/rep : 210/1262/210 causal constraints (skipped 497 transitions) in 75 ms.
[2025-06-01 10:24:27] [INFO ] Added : 4 causal constraints over 3 iterations in 328 ms. Result :sat
Minimization took 364 ms.
[2025-06-01 10:24:27] [INFO ] [Real]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:24:28] [INFO ] [Real]Absence check using state equation in 372 ms returned sat
[2025-06-01 10:24:28] [INFO ] [Real]Added 86 Read/Feed constraints in 57 ms returned sat
[2025-06-01 10:24:28] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:24:28] [INFO ] [Nat]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:24:28] [INFO ] [Nat]Absence check using state equation in 345 ms returned sat
[2025-06-01 10:24:28] [INFO ] [Nat]Added 86 Read/Feed constraints in 82 ms returned sat
[2025-06-01 10:24:29] [INFO ] Deduced a trap composed of 131 places in 440 ms of which 7 ms to minimize.
[2025-06-01 10:24:29] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 513 ms
[2025-06-01 10:24:29] [INFO ] Computed and/alt/rep : 210/1262/210 causal constraints (skipped 497 transitions) in 75 ms.
[2025-06-01 10:24:29] [INFO ] Added : 1 causal constraints over 1 iterations in 168 ms. Result :sat
Minimization took 360 ms.
[2025-06-01 10:24:30] [INFO ] [Real]Absence check using 3 positive place invariants in 12 ms returned sat
[2025-06-01 10:24:30] [INFO ] [Real]Absence check using state equation in 323 ms returned sat
[2025-06-01 10:24:30] [INFO ] [Real]Added 86 Read/Feed constraints in 147 ms returned sat
[2025-06-01 10:24:30] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:24:30] [INFO ] [Nat]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 10:24:30] [INFO ] [Nat]Absence check using state equation in 240 ms returned sat
[2025-06-01 10:24:31] [INFO ] [Nat]Added 86 Read/Feed constraints in 80 ms returned sat
[2025-06-01 10:24:31] [INFO ] Deduced a trap composed of 83 places in 530 ms of which 7 ms to minimize.
[2025-06-01 10:24:31] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 580 ms
[2025-06-01 10:24:31] [INFO ] Computed and/alt/rep : 210/1262/210 causal constraints (skipped 497 transitions) in 82 ms.
[2025-06-01 10:24:32] [INFO ] Deduced a trap composed of 131 places in 365 ms of which 7 ms to minimize.
[2025-06-01 10:24:32] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 453 ms
[2025-06-01 10:24:32] [INFO ] Added : 12 causal constraints over 5 iterations in 848 ms. Result :sat
Minimization took 416 ms.
[2025-06-01 10:24:32] [INFO ] [Real]Absence check using 3 positive place invariants in 7 ms returned sat
[2025-06-01 10:24:33] [INFO ] [Real]Absence check using state equation in 293 ms returned sat
[2025-06-01 10:24:33] [INFO ] [Real]Added 86 Read/Feed constraints in 51 ms returned sat
[2025-06-01 10:24:33] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:24:33] [INFO ] [Nat]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:24:33] [INFO ] [Nat]Absence check using state equation in 324 ms returned sat
[2025-06-01 10:24:33] [INFO ] [Nat]Added 86 Read/Feed constraints in 49 ms returned sat
[2025-06-01 10:24:34] [INFO ] Deduced a trap composed of 77 places in 504 ms of which 7 ms to minimize.
[2025-06-01 10:24:34] [INFO ] Deduced a trap composed of 83 places in 508 ms of which 7 ms to minimize.
[2025-06-01 10:24:34] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 1086 ms
[2025-06-01 10:24:35] [INFO ] Computed and/alt/rep : 210/1262/210 causal constraints (skipped 497 transitions) in 89 ms.
[2025-06-01 10:24:35] [INFO ] Added : 9 causal constraints over 3 iterations in 299 ms. Result :sat
Minimization took 379 ms.
[2025-06-01 10:24:35] [INFO ] [Real]Absence check using 3 positive place invariants in 9 ms returned sat
[2025-06-01 10:24:36] [INFO ] [Real]Absence check using state equation in 336 ms returned sat
[2025-06-01 10:24:36] [INFO ] [Real]Added 86 Read/Feed constraints in 87 ms returned sat
[2025-06-01 10:24:36] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:24:36] [INFO ] [Nat]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:24:36] [INFO ] [Nat]Absence check using state equation in 377 ms returned sat
[2025-06-01 10:24:36] [INFO ] [Nat]Added 86 Read/Feed constraints in 152 ms returned sat
[2025-06-01 10:24:37] [INFO ] Deduced a trap composed of 98 places in 497 ms of which 7 ms to minimize.
[2025-06-01 10:24:38] [INFO ] Deduced a trap composed of 94 places in 501 ms of which 6 ms to minimize.
[2025-06-01 10:24:38] [INFO ] Deduced a trap composed of 82 places in 494 ms of which 6 ms to minimize.
[2025-06-01 10:24:39] [INFO ] Deduced a trap composed of 75 places in 563 ms of which 7 ms to minimize.
[2025-06-01 10:24:39] [INFO ] Deduced a trap composed of 131 places in 497 ms of which 7 ms to minimize.
[2025-06-01 10:24:39] [INFO ] Trap strengthening (SAT) tested/added 6/5 trap constraints in 2790 ms
[2025-06-01 10:24:39] [INFO ] Computed and/alt/rep : 210/1262/210 causal constraints (skipped 497 transitions) in 126 ms.
[2025-06-01 10:24:40] [INFO ] Added : 4 causal constraints over 2 iterations in 345 ms. Result :sat
Minimization took 542 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1816, 3744, 3, 1, 3906, 4, 2] Max Struct:[+inf, +inf, +inf, 2, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1816, 3744, 3, 1, 3906, 4, 2] Max Struct:[+inf, +inf, +inf, 2, +inf, +inf, +inf]
Support contains 7 out of 430 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 430/430 places, 1237/1237 transitions.
Applied a total of 0 rules in 58 ms. Remains 430 /430 variables (removed 0) and now considering 1237/1237 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 69 ms. Remains : 430/430 places, 1237/1237 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 430/430 places, 1237/1237 transitions.
Applied a total of 0 rules in 52 ms. Remains 430 /430 variables (removed 0) and now considering 1237/1237 (removed 0) transitions.
[2025-06-01 10:24:55] [INFO ] Flow matrix only has 709 transitions (discarded 528 similar events)
[2025-06-01 10:24:55] [INFO ] Invariant cache hit.
[2025-06-01 10:24:56] [INFO ] Implicit Places using invariants in 747 ms returned []
[2025-06-01 10:24:56] [INFO ] Flow matrix only has 709 transitions (discarded 528 similar events)
[2025-06-01 10:24:56] [INFO ] Invariant cache hit.
[2025-06-01 10:24:57] [INFO ] State equation strengthened by 86 read => feed constraints.
[2025-06-01 10:24:59] [INFO ] Implicit Places using invariants and state equation in 3186 ms returned []
Implicit Place search using SMT with State Equation took 3950 ms to find 0 implicit places.
[2025-06-01 10:24:59] [INFO ] Redundant transitions in 34 ms returned []
Running 1235 sub problems to find dead transitions.
[2025-06-01 10:24:59] [INFO ] Flow matrix only has 709 transitions (discarded 528 similar events)
[2025-06-01 10:24:59] [INFO ] Invariant cache hit.
[2025-06-01 10:24:59] [INFO ] State equation strengthened by 86 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/430 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1235 unsolved
[2025-06-01 10:25:24] [INFO ] Deduced a trap composed of 131 places in 415 ms of which 6 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 430/1139 variables, and 4 constraints, problems are : Problem set: 0 solved, 1235 unsolved in 30054 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/430 constraints, ReadFeed: 0/86 constraints, PredecessorRefiner: 1235/1235 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1235 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/430 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1235 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/430 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1235 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/430 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1235 unsolved
At refinement iteration 3 (OVERLAPS) 709/1139 variables, 430/434 constraints. Problems are: Problem set: 0 solved, 1235 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1139 variables, 86/520 constraints. Problems are: Problem set: 0 solved, 1235 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1139/1139 variables, and 1755 constraints, problems are : Problem set: 0 solved, 1235 unsolved in 31124 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 430/430 constraints, ReadFeed: 86/86 constraints, PredecessorRefiner: 1235/1235 constraints, Known Traps: 1/1 constraints]
After SMT, in 66615ms problems are : Problem set: 0 solved, 1235 unsolved
Search for dead transitions found 0 dead transitions in 66637ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 70690 ms. Remains : 430/430 places, 1237/1237 transitions.
[2025-06-01 10:26:06] [INFO ] Flow matrix only has 709 transitions (discarded 528 similar events)
Found an invariant !
This invariant on transitions {213=1, 311=1, 511=1, 700=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {257=1, 355=1, 683=1, 702=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 55 ms. (steps per millisecond=181 ) properties (out of 7) seen :[0, 0, 0, 0, 3, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[1816, 3744, 3, 1, 3906, 4, 2] Max Struct:[+inf, +inf, +inf, 2, +inf, +inf, +inf]
[2025-06-01 10:26:06] [INFO ] Flow matrix only has 709 transitions (discarded 528 similar events)
[2025-06-01 10:26:06] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[1816, 3744, 3, 1, 3906, 4, 2] Max Struct:[+inf, +inf, +inf, 2, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 3321 ms. (301 steps per ms)
BEST_FIRST walk for 7000007 steps (14 resets) in 5156 ms. (1357 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1816, 3744, 3, 1, 3906, 4, 2] Max Struct:[+inf, +inf, +inf, 2, +inf, +inf, +inf]
[2025-06-01 10:26:15] [INFO ] Flow matrix only has 709 transitions (discarded 528 similar events)
[2025-06-01 10:26:15] [INFO ] Invariant cache hit.
[2025-06-01 10:26:15] [INFO ] [Real]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 10:26:15] [INFO ] [Real]Absence check using state equation in 219 ms returned sat
[2025-06-01 10:26:15] [INFO ] State equation strengthened by 86 read => feed constraints.
[2025-06-01 10:26:15] [INFO ] [Real]Added 86 Read/Feed constraints in 29 ms returned sat
[2025-06-01 10:26:15] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:26:15] [INFO ] [Nat]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 10:26:16] [INFO ] [Nat]Absence check using state equation in 223 ms returned sat
[2025-06-01 10:26:16] [INFO ] [Nat]Added 86 Read/Feed constraints in 28 ms returned sat
[2025-06-01 10:26:16] [INFO ] Deduced a trap composed of 77 places in 362 ms of which 4 ms to minimize.
[2025-06-01 10:26:16] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 420 ms
[2025-06-01 10:26:16] [INFO ] Computed and/alt/rep : 210/1262/210 causal constraints (skipped 497 transitions) in 145 ms.
[2025-06-01 10:26:17] [INFO ] Deduced a trap composed of 98 places in 646 ms of which 7 ms to minimize.
[2025-06-01 10:26:18] [INFO ] Deduced a trap composed of 94 places in 605 ms of which 7 ms to minimize.
[2025-06-01 10:26:19] [INFO ] Deduced a trap composed of 82 places in 585 ms of which 7 ms to minimize.
[2025-06-01 10:26:19] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 2057 ms
[2025-06-01 10:26:19] [INFO ] Added : 5 causal constraints over 3 iterations in 2626 ms. Result :sat
Minimization took 561 ms.
[2025-06-01 10:26:19] [INFO ] [Real]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:26:20] [INFO ] [Real]Absence check using state equation in 347 ms returned sat
[2025-06-01 10:26:20] [INFO ] [Real]Added 86 Read/Feed constraints in 78 ms returned sat
[2025-06-01 10:26:20] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:26:20] [INFO ] [Nat]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:26:20] [INFO ] [Nat]Absence check using state equation in 382 ms returned sat
[2025-06-01 10:26:21] [INFO ] [Nat]Added 86 Read/Feed constraints in 65 ms returned sat
[2025-06-01 10:26:21] [INFO ] Deduced a trap composed of 83 places in 554 ms of which 7 ms to minimize.
[2025-06-01 10:26:22] [INFO ] Deduced a trap composed of 82 places in 514 ms of which 7 ms to minimize.
[2025-06-01 10:26:22] [INFO ] Deduced a trap composed of 78 places in 600 ms of which 7 ms to minimize.
[2025-06-01 10:26:23] [INFO ] Deduced a trap composed of 77 places in 590 ms of which 7 ms to minimize.
[2025-06-01 10:26:24] [INFO ] Deduced a trap composed of 75 places in 614 ms of which 7 ms to minimize.
[2025-06-01 10:26:24] [INFO ] Deduced a trap composed of 74 places in 617 ms of which 7 ms to minimize.
[2025-06-01 10:26:24] [INFO ] Trap strengthening (SAT) tested/added 7/6 trap constraints in 3819 ms
[2025-06-01 10:26:24] [INFO ] Computed and/alt/rep : 210/1262/210 causal constraints (skipped 497 transitions) in 135 ms.
[2025-06-01 10:26:25] [INFO ] Added : 5 causal constraints over 3 iterations in 506 ms. Result :sat
Minimization took 551 ms.
[2025-06-01 10:26:26] [INFO ] [Real]Absence check using 3 positive place invariants in 9 ms returned sat
[2025-06-01 10:26:26] [INFO ] [Real]Absence check using state equation in 346 ms returned sat
[2025-06-01 10:26:26] [INFO ] [Real]Added 86 Read/Feed constraints in 72 ms returned sat
[2025-06-01 10:26:26] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:26:26] [INFO ] [Nat]Absence check using 3 positive place invariants in 8 ms returned sat
[2025-06-01 10:26:27] [INFO ] [Nat]Absence check using state equation in 317 ms returned sat
[2025-06-01 10:26:27] [INFO ] [Nat]Added 86 Read/Feed constraints in 59 ms returned sat
[2025-06-01 10:26:27] [INFO ] Deduced a trap composed of 77 places in 482 ms of which 20 ms to minimize.
[2025-06-01 10:26:28] [INFO ] Deduced a trap composed of 83 places in 512 ms of which 6 ms to minimize.
[2025-06-01 10:26:28] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 1094 ms
[2025-06-01 10:26:28] [INFO ] Computed and/alt/rep : 210/1262/210 causal constraints (skipped 497 transitions) in 119 ms.
[2025-06-01 10:26:28] [INFO ] Added : 4 causal constraints over 3 iterations in 431 ms. Result :sat
Minimization took 513 ms.
[2025-06-01 10:26:29] [INFO ] [Real]Absence check using 3 positive place invariants in 9 ms returned sat
[2025-06-01 10:26:29] [INFO ] [Real]Absence check using state equation in 380 ms returned sat
[2025-06-01 10:26:29] [INFO ] [Real]Added 86 Read/Feed constraints in 68 ms returned sat
[2025-06-01 10:26:29] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:26:30] [INFO ] [Nat]Absence check using 3 positive place invariants in 9 ms returned sat
[2025-06-01 10:26:30] [INFO ] [Nat]Absence check using state equation in 395 ms returned sat
[2025-06-01 10:26:30] [INFO ] [Nat]Added 86 Read/Feed constraints in 86 ms returned sat
[2025-06-01 10:26:30] [INFO ] Deduced a trap composed of 131 places in 446 ms of which 7 ms to minimize.
[2025-06-01 10:26:31] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 530 ms
[2025-06-01 10:26:31] [INFO ] Computed and/alt/rep : 210/1262/210 causal constraints (skipped 497 transitions) in 124 ms.
[2025-06-01 10:26:31] [INFO ] Added : 1 causal constraints over 1 iterations in 261 ms. Result :sat
Minimization took 503 ms.
[2025-06-01 10:26:31] [INFO ] [Real]Absence check using 3 positive place invariants in 11 ms returned sat
[2025-06-01 10:26:32] [INFO ] [Real]Absence check using state equation in 362 ms returned sat
[2025-06-01 10:26:32] [INFO ] [Real]Added 86 Read/Feed constraints in 149 ms returned sat
[2025-06-01 10:26:32] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:26:32] [INFO ] [Nat]Absence check using 3 positive place invariants in 9 ms returned sat
[2025-06-01 10:26:33] [INFO ] [Nat]Absence check using state equation in 322 ms returned sat
[2025-06-01 10:26:33] [INFO ] [Nat]Added 86 Read/Feed constraints in 113 ms returned sat
[2025-06-01 10:26:33] [INFO ] Deduced a trap composed of 83 places in 473 ms of which 6 ms to minimize.
[2025-06-01 10:26:33] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 557 ms
[2025-06-01 10:26:33] [INFO ] Computed and/alt/rep : 210/1262/210 causal constraints (skipped 497 transitions) in 113 ms.
[2025-06-01 10:26:34] [INFO ] Deduced a trap composed of 131 places in 464 ms of which 6 ms to minimize.
[2025-06-01 10:26:34] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 579 ms
[2025-06-01 10:26:34] [INFO ] Added : 12 causal constraints over 5 iterations in 1109 ms. Result :sat
Minimization took 544 ms.
[2025-06-01 10:26:35] [INFO ] [Real]Absence check using 3 positive place invariants in 12 ms returned sat
[2025-06-01 10:26:35] [INFO ] [Real]Absence check using state equation in 341 ms returned sat
[2025-06-01 10:26:36] [INFO ] [Real]Added 86 Read/Feed constraints in 66 ms returned sat
[2025-06-01 10:26:36] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:26:36] [INFO ] [Nat]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:26:36] [INFO ] [Nat]Absence check using state equation in 382 ms returned sat
[2025-06-01 10:26:36] [INFO ] [Nat]Added 86 Read/Feed constraints in 69 ms returned sat
[2025-06-01 10:26:37] [INFO ] Deduced a trap composed of 77 places in 548 ms of which 6 ms to minimize.
[2025-06-01 10:26:37] [INFO ] Deduced a trap composed of 83 places in 599 ms of which 7 ms to minimize.
[2025-06-01 10:26:37] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 1277 ms
[2025-06-01 10:26:38] [INFO ] Computed and/alt/rep : 210/1262/210 causal constraints (skipped 497 transitions) in 136 ms.
[2025-06-01 10:26:38] [INFO ] Added : 9 causal constraints over 3 iterations in 470 ms. Result :sat
Minimization took 522 ms.
[2025-06-01 10:26:39] [INFO ] [Real]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:26:39] [INFO ] [Real]Absence check using state equation in 392 ms returned sat
[2025-06-01 10:26:39] [INFO ] [Real]Added 86 Read/Feed constraints in 95 ms returned sat
[2025-06-01 10:26:39] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:26:39] [INFO ] [Nat]Absence check using 3 positive place invariants in 9 ms returned sat
[2025-06-01 10:26:40] [INFO ] [Nat]Absence check using state equation in 361 ms returned sat
[2025-06-01 10:26:40] [INFO ] [Nat]Added 86 Read/Feed constraints in 139 ms returned sat
[2025-06-01 10:26:40] [INFO ] Deduced a trap composed of 98 places in 579 ms of which 7 ms to minimize.
[2025-06-01 10:26:41] [INFO ] Deduced a trap composed of 94 places in 511 ms of which 6 ms to minimize.
[2025-06-01 10:26:42] [INFO ] Deduced a trap composed of 82 places in 575 ms of which 6 ms to minimize.
[2025-06-01 10:26:42] [INFO ] Deduced a trap composed of 75 places in 569 ms of which 7 ms to minimize.
[2025-06-01 10:26:43] [INFO ] Deduced a trap composed of 131 places in 539 ms of which 7 ms to minimize.
[2025-06-01 10:26:43] [INFO ] Trap strengthening (SAT) tested/added 6/5 trap constraints in 3028 ms
[2025-06-01 10:26:43] [INFO ] Computed and/alt/rep : 210/1262/210 causal constraints (skipped 497 transitions) in 131 ms.
[2025-06-01 10:26:43] [INFO ] Added : 4 causal constraints over 2 iterations in 344 ms. Result :sat
Minimization took 525 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1816, 3744, 3, 1, 3906, 4, 2] Max Struct:[+inf, +inf, +inf, 2, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1816, 3744, 3, 1, 3906, 4, 2] Max Struct:[+inf, +inf, +inf, 2, +inf, +inf, +inf]
Support contains 7 out of 430 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 430/430 places, 1237/1237 transitions.
Applied a total of 0 rules in 87 ms. Remains 430 /430 variables (removed 0) and now considering 1237/1237 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 88 ms. Remains : 430/430 places, 1237/1237 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 430/430 places, 1237/1237 transitions.
Applied a total of 0 rules in 87 ms. Remains 430 /430 variables (removed 0) and now considering 1237/1237 (removed 0) transitions.
[2025-06-01 10:26:59] [INFO ] Flow matrix only has 709 transitions (discarded 528 similar events)
[2025-06-01 10:26:59] [INFO ] Invariant cache hit.
[2025-06-01 10:27:00] [INFO ] Implicit Places using invariants in 957 ms returned []
[2025-06-01 10:27:00] [INFO ] Flow matrix only has 709 transitions (discarded 528 similar events)
[2025-06-01 10:27:00] [INFO ] Invariant cache hit.
[2025-06-01 10:27:00] [INFO ] State equation strengthened by 86 read => feed constraints.
[2025-06-01 10:27:02] [INFO ] Implicit Places using invariants and state equation in 2731 ms returned []
Implicit Place search using SMT with State Equation took 3714 ms to find 0 implicit places.
[2025-06-01 10:27:03] [INFO ] Redundant transitions in 96 ms returned []
Running 1235 sub problems to find dead transitions.
[2025-06-01 10:27:03] [INFO ] Flow matrix only has 709 transitions (discarded 528 similar events)
[2025-06-01 10:27:03] [INFO ] Invariant cache hit.
[2025-06-01 10:27:03] [INFO ] State equation strengthened by 86 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/430 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1235 unsolved
[2025-06-01 10:27:28] [INFO ] Deduced a trap composed of 131 places in 451 ms of which 6 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 430/1139 variables, and 4 constraints, problems are : Problem set: 0 solved, 1235 unsolved in 30038 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/430 constraints, ReadFeed: 0/86 constraints, PredecessorRefiner: 1235/1235 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1235 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/430 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1235 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/430 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1235 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/430 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1235 unsolved
At refinement iteration 3 (OVERLAPS) 709/1139 variables, 430/434 constraints. Problems are: Problem set: 0 solved, 1235 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1139 variables, 86/520 constraints. Problems are: Problem set: 0 solved, 1235 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1139/1139 variables, and 1755 constraints, problems are : Problem set: 0 solved, 1235 unsolved in 31071 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 430/430 constraints, ReadFeed: 86/86 constraints, PredecessorRefiner: 1235/1235 constraints, Known Traps: 1/1 constraints]
After SMT, in 65803ms problems are : Problem set: 0 solved, 1235 unsolved
Search for dead transitions found 0 dead transitions in 65818ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 69746 ms. Remains : 430/430 places, 1237/1237 transitions.
[2025-06-01 10:28:08] [INFO ] Flow matrix only has 709 transitions (discarded 528 similar events)
Found an invariant !
This invariant on transitions {213=1, 311=1, 511=1, 700=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {257=1, 355=1, 683=1, 702=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 52 ms. (steps per millisecond=192 ) properties (out of 7) seen :[0, 0, 2, 0, 0, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[1816, 3744, 3, 1, 3906, 4, 2] Max Struct:[+inf, +inf, +inf, 2, +inf, +inf, +inf]
RANDOM walk for 40001 steps (8 resets) in 2642 ms. (15 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40004 steps (8 resets) in 214 ms. (186 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40003 steps (8 resets) in 142 ms. (279 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40003 steps (8 resets) in 155 ms. (256 steps per ms) remains 7/8 properties
BEST_FIRST walk for 40004 steps (8 resets) in 199 ms. (200 steps per ms) remains 7/7 properties
BEST_FIRST walk for 40004 steps (8 resets) in 200 ms. (199 steps per ms) remains 7/7 properties
[2025-06-01 10:28:10] [INFO ] Flatten gal took : 477 ms
BEST_FIRST walk for 40004 steps (8 resets) in 167 ms. (238 steps per ms) remains 7/7 properties
BEST_FIRST walk for 40004 steps (8 resets) in 140 ms. (283 steps per ms) remains 6/7 properties
BEST_FIRST walk for 40004 steps (8 resets) in 120 ms. (330 steps per ms) remains 6/6 properties
[2025-06-01 10:28:10] [INFO ] Flow matrix only has 709 transitions (discarded 528 similar events)
[2025-06-01 10:28:10] [INFO ] Invariant cache hit.
[2025-06-01 10:28:10] [INFO ] State equation strengthened by 86 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/5 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 6 unsolved
[2025-06-01 10:28:10] [INFO ] Flatten gal took : 285 ms
At refinement iteration 1 (OVERLAPS) 383/388 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 6 unsolved
[2025-06-01 10:28:10] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality15758946370685355378.gal : 79 ms
[2025-06-01 10:28:11] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality868862457302487941.prop : 5 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality15758946370685355378.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality868862457302487941.prop' '--nowitness' '--gen-order' 'FOLLOW'
At refinement iteration 2 (INCLUDED_ONLY) 0/388 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 6 unsolved
its-reach command run as :
/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
Loading property file /tmp/ReachabilityCardinality868862457302487941.prop.
At refinement iteration 3 (OVERLAPS) 654/1042 variables, 388/389 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1042 variables, 6/395 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/1042 variables, 0/395 constraints. Problems are: Problem set: 0 solved, 6 unsolved
SDD proceeding with computation,6 properties remain. new max is 4
SDD size :1 after 27
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 41/1083 variables, 11/406 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/1083 variables, 1/407 constraints. Problems are: Problem set: 0 solved, 6 unsolved
SDD proceeding with computation,6 properties remain. new max is 8
SDD size :27 after 1015
At refinement iteration 8 (INCLUDED_ONLY) 0/1083 variables, 76/483 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/1083 variables, 0/483 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 10 (OVERLAPS) 5/1088 variables, 1/484 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/1088 variables, 1/485 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/1088 variables, 0/485 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 13 (OVERLAPS) 25/1113 variables, 16/501 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/1113 variables, 4/505 constraints. Problems are: Problem set: 0 solved, 6 unsolved
SDD proceeding with computation,6 properties remain. new max is 16
SDD size :1015 after 17021
At refinement iteration 15 (INCLUDED_ONLY) 0/1113 variables, 0/505 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 16 (OVERLAPS) 12/1125 variables, 6/511 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/1125 variables, 0/511 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 18 (OVERLAPS) 8/1133 variables, 4/515 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/1133 variables, 0/515 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 20 (OVERLAPS) 6/1139 variables, 4/519 constraints. Problems are: Problem set: 0 solved, 6 unsolved
SDD proceeding with computation,6 properties remain. new max is 32
SDD size :17021 after 23602
At refinement iteration 21 (INCLUDED_ONLY) 0/1139 variables, 0/519 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 22 (OVERLAPS) 0/1139 variables, 0/519 constraints. Problems are: Problem set: 0 solved, 6 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1139/1139 variables, and 519 constraints, problems are : Problem set: 0 solved, 6 unsolved in 2492 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 430/430 constraints, ReadFeed: 86/86 constraints, PredecessorRefiner: 6/6 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 6 unsolved
SDD proceeding with computation,6 properties remain. new max is 64
SDD size :23602 after 48202
At refinement iteration 0 (INCLUDED_ONLY) 0/5 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 6 unsolved
SDD proceeding with computation,6 properties remain. new max is 128
SDD size :48202 after 63769
At refinement iteration 1 (OVERLAPS) 383/388 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 6 unsolved
SDD proceeding with computation,6 properties remain. new max is 256
SDD size :63769 after 76436
At refinement iteration 2 (INCLUDED_ONLY) 0/388 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 6 unsolved
Invariant property MIN6 does not hold.
SDD proceeding with computation,5 properties remain. new max is 256
SDD size :76436 after 78852
At refinement iteration 3 (OVERLAPS) 654/1042 variables, 388/389 constraints. Problems are: Problem set: 1 solved, 5 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1042 variables, 6/395 constraints. Problems are: Problem set: 1 solved, 5 unsolved
SDD proceeding with computation,5 properties remain. new max is 512
SDD size :78852 after 81433
At refinement iteration 5 (INCLUDED_ONLY) 0/1042 variables, 0/395 constraints. Problems are: Problem set: 1 solved, 5 unsolved
At refinement iteration 6 (OVERLAPS) 41/1083 variables, 11/406 constraints. Problems are: Problem set: 1 solved, 5 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/1083 variables, 1/407 constraints. Problems are: Problem set: 1 solved, 5 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/1083 variables, 76/483 constraints. Problems are: Problem set: 1 solved, 5 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/1083 variables, 5/488 constraints. Problems are: Problem set: 1 solved, 5 unsolved
SDD proceeding with computation,5 properties remain. new max is 1024
SDD size :81433 after 87770
[2025-06-01 10:28:14] [INFO ] Deduced a trap composed of 135 places in 407 ms of which 7 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/1083 variables, 1/489 constraints. Problems are: Problem set: 1 solved, 5 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/1083 variables, 0/489 constraints. Problems are: Problem set: 1 solved, 5 unsolved
At refinement iteration 12 (OVERLAPS) 5/1088 variables, 1/490 constraints. Problems are: Problem set: 1 solved, 5 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/1088 variables, 1/491 constraints. Problems are: Problem set: 1 solved, 5 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/1088 variables, 0/491 constraints. Problems are: Problem set: 1 solved, 5 unsolved
At refinement iteration 15 (OVERLAPS) 25/1113 variables, 16/507 constraints. Problems are: Problem set: 1 solved, 5 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/1113 variables, 4/511 constraints. Problems are: Problem set: 1 solved, 5 unsolved
SDD proceeding with computation,5 properties remain. new max is 2048
SDD size :87770 after 109570
At refinement iteration 17 (INCLUDED_ONLY) 0/1113 variables, 0/511 constraints. Problems are: Problem set: 1 solved, 5 unsolved
At refinement iteration 18 (OVERLAPS) 12/1125 variables, 6/517 constraints. Problems are: Problem set: 1 solved, 5 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/1125 variables, 0/517 constraints. Problems are: Problem set: 1 solved, 5 unsolved
At refinement iteration 20 (OVERLAPS) 8/1133 variables, 4/521 constraints. Problems are: Problem set: 1 solved, 5 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/1133 variables, 0/521 constraints. Problems are: Problem set: 1 solved, 5 unsolved
At refinement iteration 22 (OVERLAPS) 6/1139 variables, 4/525 constraints. Problems are: Problem set: 1 solved, 5 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/1139 variables, 0/525 constraints. Problems are: Problem set: 1 solved, 5 unsolved
At refinement iteration 24 (OVERLAPS) 0/1139 variables, 0/525 constraints. Problems are: Problem set: 1 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1139/1139 variables, and 525 constraints, problems are : Problem set: 1 solved, 5 unsolved in 2595 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 430/430 constraints, ReadFeed: 86/86 constraints, PredecessorRefiner: 5/6 constraints, Known Traps: 1/1 constraints]
After SMT, in 5140ms problems are : Problem set: 1 solved, 5 unsolved
Fused 5 Parikh solutions to 4 different solutions.
SDD proceeding with computation,5 properties remain. new max is 4096
SDD size :109570 after 258743
SDD proceeding with computation,5 properties remain. new max is 8192
SDD size :258743 after 1.93038e+06
SDD proceeding with computation,5 properties remain. new max is 16384
SDD size :1.93038e+06 after 2.58708e+07
Parikh walk visited 1 properties in 30004 ms.
Support contains 3 out of 430 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 430/430 places, 1237/1237 transitions.
Graph (complete) has 2131 edges and 430 vertex of which 427 are kept as prefixes of interest. Removing 3 places using SCC suffix rule.1 ms
Discarding 3 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 0 with 5 rules applied. Total rules applied 6 place count 427 transition count 1232
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 9 place count 424 transition count 1224
Iterating global reduction 1 with 3 rules applied. Total rules applied 12 place count 424 transition count 1224
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 1 with 2 rules applied. Total rules applied 14 place count 424 transition count 1222
Discarding 2 places :
Symmetric choice reduction at 2 with 2 rule applications. Total rules 16 place count 422 transition count 1218
Iterating global reduction 2 with 2 rules applied. Total rules applied 18 place count 422 transition count 1218
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 19 place count 421 transition count 1216
Iterating global reduction 2 with 1 rules applied. Total rules applied 20 place count 421 transition count 1216
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 21 place count 420 transition count 1214
Iterating global reduction 2 with 1 rules applied. Total rules applied 22 place count 420 transition count 1214
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 23 place count 419 transition count 1212
Iterating global reduction 2 with 1 rules applied. Total rules applied 24 place count 419 transition count 1212
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 25 place count 418 transition count 1210
Iterating global reduction 2 with 1 rules applied. Total rules applied 26 place count 418 transition count 1210
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 27 place count 417 transition count 1208
Iterating global reduction 2 with 1 rules applied. Total rules applied 28 place count 417 transition count 1208
Applied a total of 28 rules in 151 ms. Remains 417 /430 variables (removed 13) and now considering 1208/1237 (removed 29) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 153 ms. Remains : 417/430 places, 1208/1237 transitions.
RANDOM walk for 40000 steps (8 resets) in 546 ms. (73 steps per ms) remains 2/4 properties
BEST_FIRST walk for 40004 steps (8 resets) in 105 ms. (377 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40004 steps (8 resets) in 119 ms. (333 steps per ms) remains 2/2 properties
[2025-06-01 10:28:46] [INFO ] Flow matrix only has 684 transitions (discarded 524 similar events)
// Phase 1: matrix 684 rows 417 cols
[2025-06-01 10:28:46] [INFO ] Computed 3 invariants in 4 ms
[2025-06-01 10:28:46] [INFO ] State equation strengthened by 76 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 6/8 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/8 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 351/359 variables, 9/11 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/359 variables, 1/12 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/359 variables, 1/13 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/359 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (OVERLAPS) 3/362 variables, 1/14 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/362 variables, 1/15 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/362 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (OVERLAPS) 596/958 variables, 332/347 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/958 variables, 75/422 constraints. Problems are: Problem set: 0 solved, 2 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (INCLUDED_ONLY) 0/958 variables, 0/422 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 13 (OVERLAPS) 62/1020 variables, 1/423 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/1020 variables, 0/423 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 15 (OVERLAPS) 67/1087 variables, 65/488 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/1087 variables, 0/488 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 17 (OVERLAPS) 8/1095 variables, 4/492 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/1095 variables, 0/492 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 19 (OVERLAPS) 6/1101 variables, 4/496 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/1101 variables, 0/496 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 21 (OVERLAPS) 0/1101 variables, 0/496 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1101/1101 variables, and 496 constraints, problems are : Problem set: 0 solved, 2 unsolved in 665 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 417/417 constraints, ReadFeed: 76/76 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 2 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 6/8 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/8 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 351/359 variables, 9/11 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/359 variables, 1/12 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/359 variables, 1/13 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/359 variables, 1/14 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/359 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (OVERLAPS) 3/362 variables, 1/15 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/362 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/362 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (OVERLAPS) 596/958 variables, 332/348 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/958 variables, 75/423 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/958 variables, 1/424 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/958 variables, 0/424 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 15 (OVERLAPS) 62/1020 variables, 1/425 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/1020 variables, 0/425 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 17 (OVERLAPS) 67/1087 variables, 65/490 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/1087 variables, 0/490 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 19 (OVERLAPS) 8/1095 variables, 4/494 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/1095 variables, 0/494 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 21 (OVERLAPS) 6/1101 variables, 4/498 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/1101 variables, 0/498 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 23 (OVERLAPS) 0/1101 variables, 0/498 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1101/1101 variables, and 498 constraints, problems are : Problem set: 0 solved, 2 unsolved in 856 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 417/417 constraints, ReadFeed: 76/76 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints]
After SMT, in 1554ms problems are : Problem set: 0 solved, 2 unsolved
Detected timeout of ITS tools.
[2025-06-01 10:29:01] [INFO ] Flatten gal took : 92 ms
[2025-06-01 10:29:01] [INFO ] Applying decomposition
[2025-06-01 10:29:01] [INFO ] Flatten gal took : 75 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202405141337/bin/convert-linux64' '-i' '/tmp/graph3092218698481184861.txt' '-o' '/tmp/graph3092218698481184861.bin' '-w' '/tmp/graph3092218698481184861.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202405141337/bin/louvain-linux64' '/tmp/graph3092218698481184861.bin' '-l' '-1' '-v' '-w' '/tmp/graph3092218698481184861.weights' '-q' '0' '-e' '0.001'
[2025-06-01 10:29:01] [INFO ] Decomposing Gal with order
[2025-06-01 10:29:01] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-01 10:29:02] [INFO ] Removed a total of 2121 redundant transitions.
[2025-06-01 10:29:02] [INFO ] Flatten gal took : 327 ms
[2025-06-01 10:29:02] [INFO ] Fuse similar labels procedure discarded/fused a total of 889 labels/synchronizations in 148 ms.
[2025-06-01 10:29:02] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality10819885390648314701.gal : 31 ms
[2025-06-01 10:29:02] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality10003759685688563660.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality10819885390648314701.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality10003759685688563660.prop' '--nowitness'
its-reach command run as :
/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...309
Loading property file /tmp/ReachabilityCardinality10003759685688563660.prop.
Parikh walk visited 0 properties in 30000 ms.
Support contains 2 out of 417 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 417/417 places, 1208/1208 transitions.
Applied a total of 0 rules in 51 ms. Remains 417 /417 variables (removed 0) and now considering 1208/1208 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 52 ms. Remains : 417/417 places, 1208/1208 transitions.
RANDOM walk for 40005 steps (8 resets) in 246 ms. (161 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40004 steps (8 resets) in 120 ms. (330 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40003 steps (8 resets) in 127 ms. (312 steps per ms) remains 2/2 properties
Interrupted probabilistic random walk after 192957 steps, run timeout after 3001 ms. (steps per millisecond=64 ) properties seen :0 out of 2
Probabilistic random walk after 192957 steps, saw 118336 distinct states, run finished after 3008 ms. (steps per millisecond=64 ) properties seen :0
[2025-06-01 10:29:21] [INFO ] Flow matrix only has 684 transitions (discarded 524 similar events)
[2025-06-01 10:29:21] [INFO ] Invariant cache hit.
[2025-06-01 10:29:21] [INFO ] State equation strengthened by 76 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 6/8 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/8 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 351/359 variables, 9/11 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/359 variables, 1/12 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/359 variables, 1/13 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/359 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (OVERLAPS) 3/362 variables, 1/14 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/362 variables, 1/15 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/362 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (OVERLAPS) 596/958 variables, 332/347 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/958 variables, 75/422 constraints. Problems are: Problem set: 0 solved, 2 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (INCLUDED_ONLY) 0/958 variables, 0/422 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 13 (OVERLAPS) 62/1020 variables, 1/423 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/1020 variables, 0/423 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 15 (OVERLAPS) 67/1087 variables, 65/488 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/1087 variables, 0/488 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 17 (OVERLAPS) 8/1095 variables, 4/492 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/1095 variables, 0/492 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 19 (OVERLAPS) 6/1101 variables, 4/496 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/1101 variables, 0/496 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 21 (OVERLAPS) 0/1101 variables, 0/496 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1101/1101 variables, and 496 constraints, problems are : Problem set: 0 solved, 2 unsolved in 573 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 417/417 constraints, ReadFeed: 76/76 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 2 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 6/8 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/8 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 351/359 variables, 9/11 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/359 variables, 1/12 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/359 variables, 1/13 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/359 variables, 1/14 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/359 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (OVERLAPS) 3/362 variables, 1/15 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/362 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/362 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (OVERLAPS) 596/958 variables, 332/348 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/958 variables, 75/423 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/958 variables, 1/424 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/958 variables, 0/424 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 15 (OVERLAPS) 62/1020 variables, 1/425 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/1020 variables, 0/425 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 17 (OVERLAPS) 67/1087 variables, 65/490 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/1087 variables, 0/490 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 19 (OVERLAPS) 8/1095 variables, 4/494 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/1095 variables, 0/494 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 21 (OVERLAPS) 6/1101 variables, 4/498 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/1101 variables, 0/498 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 23 (OVERLAPS) 0/1101 variables, 0/498 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1101/1101 variables, and 498 constraints, problems are : Problem set: 0 solved, 2 unsolved in 612 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 417/417 constraints, ReadFeed: 76/76 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints]
After SMT, in 1201ms problems are : Problem set: 0 solved, 2 unsolved
Parikh walk visited 0 properties in 30000 ms.
Support contains 2 out of 417 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 417/417 places, 1208/1208 transitions.
Applied a total of 0 rules in 51 ms. Remains 417 /417 variables (removed 0) and now considering 1208/1208 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 51 ms. Remains : 417/417 places, 1208/1208 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 417/417 places, 1208/1208 transitions.
Applied a total of 0 rules in 50 ms. Remains 417 /417 variables (removed 0) and now considering 1208/1208 (removed 0) transitions.
[2025-06-01 10:29:52] [INFO ] Flow matrix only has 684 transitions (discarded 524 similar events)
[2025-06-01 10:29:52] [INFO ] Invariant cache hit.
Detected timeout of ITS tools.
[2025-06-01 10:29:53] [INFO ] Implicit Places using invariants in 768 ms returned []
[2025-06-01 10:29:53] [INFO ] Flow matrix only has 684 transitions (discarded 524 similar events)
[2025-06-01 10:29:53] [INFO ] Invariant cache hit.
[2025-06-01 10:29:53] [INFO ] State equation strengthened by 76 read => feed constraints.
[2025-06-01 10:29:55] [INFO ] Implicit Places using invariants and state equation in 2433 ms returned []
Implicit Place search using SMT with State Equation took 3203 ms to find 0 implicit places.
[2025-06-01 10:29:55] [INFO ] Redundant transitions in 50 ms returned []
Running 1206 sub problems to find dead transitions.
[2025-06-01 10:29:55] [INFO ] Flow matrix only has 684 transitions (discarded 524 similar events)
[2025-06-01 10:29:55] [INFO ] Invariant cache hit.
[2025-06-01 10:29:55] [INFO ] State equation strengthened by 76 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/417 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1206 unsolved
[2025-06-01 10:30:20] [INFO ] Deduced a trap composed of 131 places in 490 ms of which 9 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 417/1101 variables, and 4 constraints, problems are : Problem set: 0 solved, 1206 unsolved in 30044 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/417 constraints, ReadFeed: 0/76 constraints, PredecessorRefiner: 1206/1206 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1206 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/417 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1206 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/417 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1206 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/417 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1206 unsolved
At refinement iteration 3 (OVERLAPS) 684/1101 variables, 417/421 constraints. Problems are: Problem set: 0 solved, 1206 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1101 variables, 76/497 constraints. Problems are: Problem set: 0 solved, 1206 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1101/1101 variables, and 1703 constraints, problems are : Problem set: 0 solved, 1206 unsolved in 31033 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 417/417 constraints, ReadFeed: 76/76 constraints, PredecessorRefiner: 1206/1206 constraints, Known Traps: 1/1 constraints]
After SMT, in 66507ms problems are : Problem set: 0 solved, 1206 unsolved
Search for dead transitions found 0 dead transitions in 66533ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 69854 ms. Remains : 417/417 places, 1208/1208 transitions.
FORMULA FunctionPointer-PT-c002-UpperBounds-11 2 TECHNIQUES REACHABILITY_MAX
Current structural bounds on expressions (After reachability solving 1 queries.) : Max Seen:[1816, 3744, 3, 3906, 4, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Starting property specific reduction for FunctionPointer-PT-c002-UpperBounds-01
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[+inf]
[2025-06-01 10:31:02] [INFO ] Flow matrix only has 709 transitions (discarded 528 similar events)
// Phase 1: matrix 709 rows 430 cols
[2025-06-01 10:31:02] [INFO ] Computed 3 invariants in 3 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10001 steps (2 resets) in 31 ms. (312 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 9 ms. (1000 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[16] Max Struct:[+inf]
[2025-06-01 10:31:02] [INFO ] Flow matrix only has 709 transitions (discarded 528 similar events)
[2025-06-01 10:31:02] [INFO ] Invariant cache hit.
[2025-06-01 10:31:02] [INFO ] [Real]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 10:31:02] [INFO ] [Real]Absence check using state equation in 297 ms returned sat
[2025-06-01 10:31:02] [INFO ] State equation strengthened by 86 read => feed constraints.
[2025-06-01 10:31:02] [INFO ] [Real]Added 86 Read/Feed constraints in 55 ms returned sat
[2025-06-01 10:31:02] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:31:02] [INFO ] [Nat]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:31:03] [INFO ] [Nat]Absence check using state equation in 385 ms returned sat
[2025-06-01 10:31:03] [INFO ] [Nat]Added 86 Read/Feed constraints in 50 ms returned sat
[2025-06-01 10:31:04] [INFO ] Deduced a trap composed of 77 places in 637 ms of which 7 ms to minimize.
[2025-06-01 10:31:04] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 724 ms
[2025-06-01 10:31:04] [INFO ] Computed and/alt/rep : 210/1262/210 causal constraints (skipped 497 transitions) in 132 ms.
[2025-06-01 10:31:05] [INFO ] Deduced a trap composed of 98 places in 618 ms of which 7 ms to minimize.
[2025-06-01 10:31:05] [INFO ] Deduced a trap composed of 94 places in 555 ms of which 6 ms to minimize.
[2025-06-01 10:31:06] [INFO ] Deduced a trap composed of 82 places in 524 ms of which 6 ms to minimize.
[2025-06-01 10:31:06] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 1917 ms
[2025-06-01 10:31:06] [INFO ] Added : 5 causal constraints over 3 iterations in 2481 ms. Result :sat
Minimization took 487 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[16] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[16] Max Struct:[+inf]
Support contains 1 out of 430 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 430/430 places, 1237/1237 transitions.
Graph (complete) has 2131 edges and 430 vertex of which 427 are kept as prefixes of interest. Removing 3 places using SCC suffix rule.1 ms
Discarding 3 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 0 with 5 rules applied. Total rules applied 6 place count 427 transition count 1232
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 10 place count 423 transition count 1222
Iterating global reduction 1 with 4 rules applied. Total rules applied 14 place count 423 transition count 1222
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 1 with 2 rules applied. Total rules applied 16 place count 423 transition count 1220
Discarding 2 places :
Symmetric choice reduction at 2 with 2 rule applications. Total rules 18 place count 421 transition count 1216
Iterating global reduction 2 with 2 rules applied. Total rules applied 20 place count 421 transition count 1216
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 21 place count 420 transition count 1214
Iterating global reduction 2 with 1 rules applied. Total rules applied 22 place count 420 transition count 1214
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 23 place count 419 transition count 1212
Iterating global reduction 2 with 1 rules applied. Total rules applied 24 place count 419 transition count 1212
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 25 place count 418 transition count 1210
Iterating global reduction 2 with 1 rules applied. Total rules applied 26 place count 418 transition count 1210
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 27 place count 417 transition count 1208
Iterating global reduction 2 with 1 rules applied. Total rules applied 28 place count 417 transition count 1208
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 29 place count 416 transition count 1206
Iterating global reduction 2 with 1 rules applied. Total rules applied 30 place count 416 transition count 1206
Applied a total of 30 rules in 227 ms. Remains 416 /430 variables (removed 14) and now considering 1206/1237 (removed 31) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 228 ms. Remains : 416/430 places, 1206/1237 transitions.
[2025-06-01 10:31:07] [INFO ] Flow matrix only has 681 transitions (discarded 525 similar events)
Found an invariant !
This invariant on transitions {253=1, 340=1, 666=1, 679=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {233=1, 320=1, 646=1, 679=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 68 ms. (steps per millisecond=147 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[16] Max Struct:[+inf]
[2025-06-01 10:31:08] [INFO ] Flow matrix only has 681 transitions (discarded 525 similar events)
// Phase 1: matrix 681 rows 416 cols
[2025-06-01 10:31:08] [INFO ] Computed 3 invariants in 4 ms
Current structural bounds on expressions (after invariants) : Max Seen:[16] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 3425 ms. (291 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 733 ms. (1362 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[16] Max Struct:[+inf]
[2025-06-01 10:31:12] [INFO ] Flow matrix only has 681 transitions (discarded 525 similar events)
[2025-06-01 10:31:12] [INFO ] Invariant cache hit.
[2025-06-01 10:31:12] [INFO ] [Real]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:31:12] [INFO ] [Real]Absence check using state equation in 320 ms returned sat
[2025-06-01 10:31:12] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:31:12] [INFO ] [Real]Added 74 Read/Feed constraints in 53 ms returned sat
[2025-06-01 10:31:12] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:31:12] [INFO ] [Nat]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 10:31:13] [INFO ] [Nat]Absence check using state equation in 246 ms returned sat
[2025-06-01 10:31:13] [INFO ] [Nat]Added 74 Read/Feed constraints in 35 ms returned sat
[2025-06-01 10:31:13] [INFO ] Deduced a trap composed of 72 places in 442 ms of which 4 ms to minimize.
[2025-06-01 10:31:13] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 495 ms
[2025-06-01 10:31:13] [INFO ] Computed and/alt/rep : 330/1240/330 causal constraints (skipped 349 transitions) in 81 ms.
[2025-06-01 10:31:14] [INFO ] Deduced a trap composed of 73 places in 467 ms of which 7 ms to minimize.
[2025-06-01 10:31:14] [INFO ] Deduced a trap composed of 243 places in 475 ms of which 6 ms to minimize.
[2025-06-01 10:31:15] [INFO ] Deduced a trap composed of 242 places in 619 ms of which 7 ms to minimize.
[2025-06-01 10:31:16] [INFO ] Deduced a trap composed of 158 places in 543 ms of which 7 ms to minimize.
[2025-06-01 10:31:16] [INFO ] Deduced a trap composed of 144 places in 561 ms of which 6 ms to minimize.
[2025-06-01 10:31:17] [INFO ] Deduced a trap composed of 142 places in 453 ms of which 4 ms to minimize.
[2025-06-01 10:31:17] [INFO ] Deduced a trap composed of 140 places in 502 ms of which 6 ms to minimize.
[2025-06-01 10:31:18] [INFO ] Deduced a trap composed of 137 places in 556 ms of which 7 ms to minimize.
[2025-06-01 10:31:18] [INFO ] Trap strengthening (SAT) tested/added 9/8 trap constraints in 4634 ms
[2025-06-01 10:31:18] [INFO ] Added : 5 causal constraints over 2 iterations in 4939 ms. Result :sat
Minimization took 582 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[16] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[16] Max Struct:[+inf]
Support contains 1 out of 416 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 416/416 places, 1206/1206 transitions.
Applied a total of 0 rules in 85 ms. Remains 416 /416 variables (removed 0) and now considering 1206/1206 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 85 ms. Remains : 416/416 places, 1206/1206 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 416/416 places, 1206/1206 transitions.
Applied a total of 0 rules in 87 ms. Remains 416 /416 variables (removed 0) and now considering 1206/1206 (removed 0) transitions.
[2025-06-01 10:31:19] [INFO ] Flow matrix only has 681 transitions (discarded 525 similar events)
[2025-06-01 10:31:19] [INFO ] Invariant cache hit.
[2025-06-01 10:31:20] [INFO ] Implicit Places using invariants in 789 ms returned []
[2025-06-01 10:31:20] [INFO ] Flow matrix only has 681 transitions (discarded 525 similar events)
[2025-06-01 10:31:20] [INFO ] Invariant cache hit.
[2025-06-01 10:31:20] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:31:22] [INFO ] Implicit Places using invariants and state equation in 2145 ms returned []
Implicit Place search using SMT with State Equation took 2936 ms to find 0 implicit places.
[2025-06-01 10:31:22] [INFO ] Redundant transitions in 21 ms returned []
Running 1204 sub problems to find dead transitions.
[2025-06-01 10:31:22] [INFO ] Flow matrix only has 681 transitions (discarded 525 similar events)
[2025-06-01 10:31:22] [INFO ] Invariant cache hit.
[2025-06-01 10:31:22] [INFO ] State equation strengthened by 74 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/416 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1204 unsolved
[2025-06-01 10:31:47] [INFO ] Deduced a trap composed of 131 places in 471 ms of which 7 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 416/1097 variables, and 4 constraints, problems are : Problem set: 0 solved, 1204 unsolved in 30037 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/416 constraints, ReadFeed: 0/74 constraints, PredecessorRefiner: 1204/1204 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1204 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/416 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1204 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/416 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1204 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/416 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1204 unsolved
At refinement iteration 3 (OVERLAPS) 681/1097 variables, 416/420 constraints. Problems are: Problem set: 0 solved, 1204 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1097 variables, 74/494 constraints. Problems are: Problem set: 0 solved, 1204 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1097/1097 variables, and 1698 constraints, problems are : Problem set: 0 solved, 1204 unsolved in 31032 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 416/416 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1204/1204 constraints, Known Traps: 1/1 constraints]
After SMT, in 66504ms problems are : Problem set: 0 solved, 1204 unsolved
Search for dead transitions found 0 dead transitions in 66519ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 69581 ms. Remains : 416/416 places, 1206/1206 transitions.
[2025-06-01 10:32:29] [INFO ] Flow matrix only has 681 transitions (discarded 525 similar events)
Found an invariant !
This invariant on transitions {253=1, 340=1, 666=1, 679=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {233=1, 320=1, 646=1, 679=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 54 ms. (steps per millisecond=185 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[16] Max Struct:[+inf]
[2025-06-01 10:32:29] [INFO ] Flatten gal took : 120 ms
RANDOM walk for 40001 steps (8 resets) in 329 ms. (121 steps per ms) remains 1/1 properties
BEST_FIRST walk for 34959 steps (7 resets) in 91 ms. (379 steps per ms) remains 0/1 properties
[2025-06-01 10:32:30] [INFO ] Flatten gal took : 85 ms
[2025-06-01 10:32:30] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality8263986506380638296.gal : 47 ms
[2025-06-01 10:32:30] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality16451258849823055441.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality8263986506380638296.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality16451258849823055441.prop' '--nowitness' '--gen-order' 'FOLLOW'
its-reach command run as :
/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[16] Max Struct:[+inf]
Ending property specific reduction for FunctionPointer-PT-c002-UpperBounds-01 in 87825 ms.
Starting property specific reduction for FunctionPointer-PT-c002-UpperBounds-02
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[+inf]
[2025-06-01 10:32:30] [INFO ] Flow matrix only has 709 transitions (discarded 528 similar events)
// Phase 1: matrix 709 rows 430 cols
[2025-06-01 10:32:30] [INFO ] Computed 3 invariants in 5 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10000 steps (2 resets) in 34 ms. (285 steps per ms)
BEST_FIRST walk for 10000 steps (2 resets) in 10 ms. (909 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[+inf]
[2025-06-01 10:32:30] [INFO ] Flow matrix only has 709 transitions (discarded 528 similar events)
[2025-06-01 10:32:30] [INFO ] Invariant cache hit.
[2025-06-01 10:32:30] [INFO ] [Real]Absence check using 3 positive place invariants in 22 ms returned sat
[2025-06-01 10:32:30] [INFO ] [Real]Absence check using state equation in 278 ms returned sat
[2025-06-01 10:32:30] [INFO ] State equation strengthened by 86 read => feed constraints.
[2025-06-01 10:32:30] [INFO ] [Real]Added 86 Read/Feed constraints in 46 ms returned sat
[2025-06-01 10:32:30] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:32:30] [INFO ] [Nat]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:32:31] [INFO ] [Nat]Absence check using state equation in 382 ms returned sat
[2025-06-01 10:32:31] [INFO ] [Nat]Added 86 Read/Feed constraints in 50 ms returned sat
[2025-06-01 10:32:31] [INFO ] Computed and/alt/rep : 210/1262/210 causal constraints (skipped 497 transitions) in 106 ms.
[2025-06-01 10:32:31] [INFO ] Added : 4 causal constraints over 3 iterations in 393 ms. Result :sat
Minimization took 502 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[+inf]
Support contains 1 out of 430 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 430/430 places, 1237/1237 transitions.
Graph (complete) has 2131 edges and 430 vertex of which 427 are kept as prefixes of interest. Removing 3 places using SCC suffix rule.1 ms
Discarding 3 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 0 with 5 rules applied. Total rules applied 6 place count 427 transition count 1232
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 10 place count 423 transition count 1222
Iterating global reduction 1 with 4 rules applied. Total rules applied 14 place count 423 transition count 1222
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 1 with 2 rules applied. Total rules applied 16 place count 423 transition count 1220
Discarding 3 places :
Symmetric choice reduction at 2 with 3 rule applications. Total rules 19 place count 420 transition count 1214
Iterating global reduction 2 with 3 rules applied. Total rules applied 22 place count 420 transition count 1214
Discarding 2 places :
Symmetric choice reduction at 2 with 2 rule applications. Total rules 24 place count 418 transition count 1210
Iterating global reduction 2 with 2 rules applied. Total rules applied 26 place count 418 transition count 1210
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 27 place count 417 transition count 1208
Iterating global reduction 2 with 1 rules applied. Total rules applied 28 place count 417 transition count 1208
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 29 place count 416 transition count 1206
Iterating global reduction 2 with 1 rules applied. Total rules applied 30 place count 416 transition count 1206
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 31 place count 415 transition count 1204
Iterating global reduction 2 with 1 rules applied. Total rules applied 32 place count 415 transition count 1204
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 33 place count 414 transition count 1202
Iterating global reduction 2 with 1 rules applied. Total rules applied 34 place count 414 transition count 1202
Applied a total of 34 rules in 132 ms. Remains 414 /430 variables (removed 16) and now considering 1202/1237 (removed 35) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 134 ms. Remains : 414/430 places, 1202/1237 transitions.
[2025-06-01 10:32:32] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
Found an invariant !
This invariant on transitions {222=1, 307=1, 504=1, 674=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 337=1, 534=1, 674=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 34 ms. (steps per millisecond=294 ) properties (out of 1) seen :[3]
Current structural bounds on expressions (after cover walk) : Max Seen:[3] Max Struct:[+inf]
[2025-06-01 10:32:32] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
// Phase 1: matrix 678 rows 414 cols
[2025-06-01 10:32:32] [INFO ] Computed 3 invariants in 5 ms
Current structural bounds on expressions (after invariants) : Max Seen:[3] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 2969 ms. (336 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 763 ms. (1308 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3729] Max Struct:[+inf]
[2025-06-01 10:32:36] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:32:36] [INFO ] Invariant cache hit.
[2025-06-01 10:32:36] [INFO ] [Real]Absence check using 3 positive place invariants in 9 ms returned sat
[2025-06-01 10:32:36] [INFO ] [Real]Absence check using state equation in 307 ms returned sat
[2025-06-01 10:32:37] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:32:37] [INFO ] [Real]Added 74 Read/Feed constraints in 60 ms returned sat
[2025-06-01 10:32:37] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:32:37] [INFO ] [Nat]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 10:32:37] [INFO ] [Nat]Absence check using state equation in 238 ms returned sat
[2025-06-01 10:32:37] [INFO ] [Nat]Added 74 Read/Feed constraints in 45 ms returned sat
[2025-06-01 10:32:38] [INFO ] Deduced a trap composed of 74 places in 509 ms of which 7 ms to minimize.
[2025-06-01 10:32:38] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 570 ms
[2025-06-01 10:32:38] [INFO ] Computed and/alt/rep : 333/1251/331 causal constraints (skipped 345 transitions) in 130 ms.
[2025-06-01 10:32:38] [INFO ] Added : 7 causal constraints over 4 iterations in 531 ms. Result :sat
Minimization took 505 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3729] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[3736] Max Struct:[+inf]
Support contains 1 out of 414 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 48 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 49 ms. Remains : 414/414 places, 1202/1202 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 48 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
[2025-06-01 10:32:46] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:32:46] [INFO ] Invariant cache hit.
[2025-06-01 10:32:47] [INFO ] Implicit Places using invariants in 807 ms returned []
[2025-06-01 10:32:47] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:32:47] [INFO ] Invariant cache hit.
[2025-06-01 10:32:48] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:32:50] [INFO ] Implicit Places using invariants and state equation in 2856 ms returned []
Implicit Place search using SMT with State Equation took 3666 ms to find 0 implicit places.
[2025-06-01 10:32:50] [INFO ] Redundant transitions in 33 ms returned []
Running 1200 sub problems to find dead transitions.
[2025-06-01 10:32:50] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:32:50] [INFO ] Invariant cache hit.
[2025-06-01 10:32:50] [INFO ] State equation strengthened by 74 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
[2025-06-01 10:33:11] [INFO ] Deduced a trap composed of 131 places in 420 ms of which 6 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/414 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 414/1092 variables, and 4 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30039 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/414 constraints, ReadFeed: 0/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1200 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/414 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/414 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 3 (OVERLAPS) 678/1092 variables, 414/418 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1092 variables, 74/492 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1092/1092 variables, and 1692 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 31318 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 414/414 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
After SMT, in 66876ms problems are : Problem set: 0 solved, 1200 unsolved
Search for dead transitions found 0 dead transitions in 66899ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 70660 ms. Remains : 414/414 places, 1202/1202 transitions.
[2025-06-01 10:33:57] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
Found an invariant !
This invariant on transitions {222=1, 307=1, 504=1, 674=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 337=1, 534=1, 674=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 38 ms. (steps per millisecond=263 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[3736] Max Struct:[+inf]
[2025-06-01 10:33:57] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:33:57] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[3736] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 3605 ms. (277 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 893 ms. (1118 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3736] Max Struct:[+inf]
[2025-06-01 10:34:02] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:34:02] [INFO ] Invariant cache hit.
[2025-06-01 10:34:02] [INFO ] [Real]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:34:02] [INFO ] [Real]Absence check using state equation in 372 ms returned sat
[2025-06-01 10:34:02] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:34:02] [INFO ] [Real]Added 74 Read/Feed constraints in 70 ms returned sat
[2025-06-01 10:34:03] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:34:03] [INFO ] [Nat]Absence check using 3 positive place invariants in 9 ms returned sat
[2025-06-01 10:34:03] [INFO ] [Nat]Absence check using state equation in 362 ms returned sat
[2025-06-01 10:34:03] [INFO ] [Nat]Added 74 Read/Feed constraints in 51 ms returned sat
[2025-06-01 10:34:04] [INFO ] Deduced a trap composed of 74 places in 485 ms of which 5 ms to minimize.
[2025-06-01 10:34:04] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 556 ms
[2025-06-01 10:34:04] [INFO ] Computed and/alt/rep : 333/1251/331 causal constraints (skipped 345 transitions) in 136 ms.
[2025-06-01 10:34:04] [INFO ] Added : 7 causal constraints over 4 iterations in 463 ms. Result :sat
Minimization took 370 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3736] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[3745] Max Struct:[+inf]
Support contains 1 out of 414 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 71 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 73 ms. Remains : 414/414 places, 1202/1202 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 48 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
[2025-06-01 10:34:12] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:34:12] [INFO ] Invariant cache hit.
[2025-06-01 10:34:13] [INFO ] Implicit Places using invariants in 551 ms returned []
[2025-06-01 10:34:13] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:34:13] [INFO ] Invariant cache hit.
[2025-06-01 10:34:13] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:34:15] [INFO ] Implicit Places using invariants and state equation in 2481 ms returned []
Implicit Place search using SMT with State Equation took 3037 ms to find 0 implicit places.
[2025-06-01 10:34:15] [INFO ] Redundant transitions in 21 ms returned []
Running 1200 sub problems to find dead transitions.
[2025-06-01 10:34:15] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:34:15] [INFO ] Invariant cache hit.
[2025-06-01 10:34:15] [INFO ] State equation strengthened by 74 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
[2025-06-01 10:34:39] [INFO ] Deduced a trap composed of 131 places in 471 ms of which 7 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 414/1092 variables, and 4 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30034 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/414 constraints, ReadFeed: 0/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1200 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/414 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/414 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 3 (OVERLAPS) 678/1092 variables, 414/418 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1092 variables, 74/492 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1092/1092 variables, and 1692 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 31015 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 414/414 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
After SMT, in 66588ms problems are : Problem set: 0 solved, 1200 unsolved
Search for dead transitions found 0 dead transitions in 66605ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 69725 ms. Remains : 414/414 places, 1202/1202 transitions.
[2025-06-01 10:35:22] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
Found an invariant !
This invariant on transitions {222=1, 307=1, 504=1, 674=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 337=1, 534=1, 674=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 57 ms. (steps per millisecond=175 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[3745] Max Struct:[+inf]
[2025-06-01 10:35:22] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:35:22] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[3745] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 3786 ms. (264 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 968 ms. (1031 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3935] Max Struct:[+inf]
[2025-06-01 10:35:27] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:35:27] [INFO ] Invariant cache hit.
[2025-06-01 10:35:27] [INFO ] [Real]Absence check using 3 positive place invariants in 9 ms returned sat
[2025-06-01 10:35:28] [INFO ] [Real]Absence check using state equation in 314 ms returned sat
[2025-06-01 10:35:28] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:35:28] [INFO ] [Real]Added 74 Read/Feed constraints in 40 ms returned sat
[2025-06-01 10:35:28] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:35:28] [INFO ] [Nat]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:35:28] [INFO ] [Nat]Absence check using state equation in 340 ms returned sat
[2025-06-01 10:35:28] [INFO ] [Nat]Added 74 Read/Feed constraints in 78 ms returned sat
[2025-06-01 10:35:29] [INFO ] Deduced a trap composed of 74 places in 582 ms of which 7 ms to minimize.
[2025-06-01 10:35:29] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 664 ms
[2025-06-01 10:35:29] [INFO ] Computed and/alt/rep : 333/1251/331 causal constraints (skipped 345 transitions) in 135 ms.
[2025-06-01 10:35:30] [INFO ] Added : 7 causal constraints over 4 iterations in 550 ms. Result :sat
Minimization took 516 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3935] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[3971] Max Struct:[+inf]
Support contains 1 out of 414 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 62 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 63 ms. Remains : 414/414 places, 1202/1202 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 48 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
[2025-06-01 10:35:39] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:35:39] [INFO ] Invariant cache hit.
[2025-06-01 10:35:39] [INFO ] Implicit Places using invariants in 977 ms returned []
[2025-06-01 10:35:39] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:35:39] [INFO ] Invariant cache hit.
[2025-06-01 10:35:40] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:35:42] [INFO ] Implicit Places using invariants and state equation in 2681 ms returned []
Implicit Place search using SMT with State Equation took 3665 ms to find 0 implicit places.
[2025-06-01 10:35:42] [INFO ] Redundant transitions in 33 ms returned []
Running 1200 sub problems to find dead transitions.
[2025-06-01 10:35:42] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:35:42] [INFO ] Invariant cache hit.
[2025-06-01 10:35:42] [INFO ] State equation strengthened by 74 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
[2025-06-01 10:36:06] [INFO ] Deduced a trap composed of 131 places in 398 ms of which 6 ms to minimize.
Error getting values : (error "ParserException while parsing response: ((s0 0.0)
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org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 414/1092 variables, and 4 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30030 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/414 constraints, ReadFeed: 0/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1200 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/414 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/414 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 3 (OVERLAPS) 678/1092 variables, 414/418 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1092 variables, 74/492 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1092/1092 variables, and 1692 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30976 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 414/414 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
After SMT, in 67046ms problems are : Problem set: 0 solved, 1200 unsolved
Search for dead transitions found 0 dead transitions in 67068ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 70829 ms. Remains : 414/414 places, 1202/1202 transitions.
[2025-06-01 10:36:49] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
Found an invariant !
This invariant on transitions {222=1, 307=1, 504=1, 674=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 337=1, 534=1, 674=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 56 ms. (steps per millisecond=178 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[3971] Max Struct:[+inf]
[2025-06-01 10:36:50] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:36:50] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[3971] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 3407 ms. (293 steps per ms)
BEST_FIRST walk for 1000000 steps (2 resets) in 725 ms. (1377 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3971] Max Struct:[+inf]
[2025-06-01 10:36:54] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:36:54] [INFO ] Invariant cache hit.
[2025-06-01 10:36:54] [INFO ] [Real]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 10:36:54] [INFO ] [Real]Absence check using state equation in 291 ms returned sat
[2025-06-01 10:36:54] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:36:54] [INFO ] [Real]Added 74 Read/Feed constraints in 68 ms returned sat
[2025-06-01 10:36:54] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:36:54] [INFO ] [Nat]Absence check using 3 positive place invariants in 7 ms returned sat
[2025-06-01 10:36:55] [INFO ] [Nat]Absence check using state equation in 264 ms returned sat
[2025-06-01 10:36:55] [INFO ] [Nat]Added 74 Read/Feed constraints in 72 ms returned sat
[2025-06-01 10:36:55] [INFO ] Deduced a trap composed of 74 places in 492 ms of which 8 ms to minimize.
[2025-06-01 10:36:55] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 562 ms
[2025-06-01 10:36:55] [INFO ] Computed and/alt/rep : 333/1251/331 causal constraints (skipped 345 transitions) in 89 ms.
[2025-06-01 10:36:56] [INFO ] Added : 7 causal constraints over 4 iterations in 437 ms. Result :sat
Minimization took 513 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3971] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[3980] Max Struct:[+inf]
Support contains 1 out of 414 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 48 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 49 ms. Remains : 414/414 places, 1202/1202 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 48 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
[2025-06-01 10:37:05] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:37:05] [INFO ] Invariant cache hit.
[2025-06-01 10:37:06] [INFO ] Implicit Places using invariants in 705 ms returned []
[2025-06-01 10:37:06] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:37:06] [INFO ] Invariant cache hit.
[2025-06-01 10:37:06] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:37:08] [INFO ] Implicit Places using invariants and state equation in 2381 ms returned []
Implicit Place search using SMT with State Equation took 3088 ms to find 0 implicit places.
[2025-06-01 10:37:08] [INFO ] Redundant transitions in 20 ms returned []
Running 1200 sub problems to find dead transitions.
[2025-06-01 10:37:08] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:37:08] [INFO ] Invariant cache hit.
[2025-06-01 10:37:08] [INFO ] State equation strengthened by 74 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
[2025-06-01 10:37:35] [INFO ] Deduced a trap composed of 131 places in 499 ms of which 7 ms to minimize.
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 414/1092 variables, and 4 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30045 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/414 constraints, ReadFeed: 0/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1200 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/414 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/414 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 3 (OVERLAPS) 678/1092 variables, 414/418 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1092 variables, 74/492 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1092/1092 variables, and 1692 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30976 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 414/414 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
After SMT, in 67361ms problems are : Problem set: 0 solved, 1200 unsolved
Search for dead transitions found 0 dead transitions in 67373ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 70541 ms. Remains : 414/414 places, 1202/1202 transitions.
[2025-06-01 10:38:16] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
Found an invariant !
This invariant on transitions {222=1, 307=1, 504=1, 674=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 337=1, 534=1, 674=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 60 ms. (steps per millisecond=166 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[3980] Max Struct:[+inf]
[2025-06-01 10:38:16] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:38:16] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[3980] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 3197 ms. (312 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 877 ms. (1138 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3980] Max Struct:[+inf]
[2025-06-01 10:38:20] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:38:20] [INFO ] Invariant cache hit.
[2025-06-01 10:38:20] [INFO ] [Real]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 10:38:20] [INFO ] [Real]Absence check using state equation in 226 ms returned sat
[2025-06-01 10:38:20] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:38:20] [INFO ] [Real]Added 74 Read/Feed constraints in 38 ms returned sat
[2025-06-01 10:38:21] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:38:21] [INFO ] [Nat]Absence check using 3 positive place invariants in 7 ms returned sat
[2025-06-01 10:38:21] [INFO ] [Nat]Absence check using state equation in 262 ms returned sat
[2025-06-01 10:38:21] [INFO ] [Nat]Added 74 Read/Feed constraints in 59 ms returned sat
[2025-06-01 10:38:21] [INFO ] Deduced a trap composed of 74 places in 413 ms of which 5 ms to minimize.
[2025-06-01 10:38:21] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 480 ms
[2025-06-01 10:38:22] [INFO ] Computed and/alt/rep : 333/1251/331 causal constraints (skipped 345 transitions) in 95 ms.
[2025-06-01 10:38:22] [INFO ] Added : 7 causal constraints over 4 iterations in 397 ms. Result :sat
Minimization took 425 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3980] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[3993] Max Struct:[+inf]
Support contains 1 out of 414 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 57 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 57 ms. Remains : 414/414 places, 1202/1202 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 48 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
[2025-06-01 10:38:32] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:38:32] [INFO ] Invariant cache hit.
[2025-06-01 10:38:32] [INFO ] Implicit Places using invariants in 595 ms returned []
[2025-06-01 10:38:33] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:38:33] [INFO ] Invariant cache hit.
[2025-06-01 10:38:33] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:38:35] [INFO ] Implicit Places using invariants and state equation in 1999 ms returned []
Implicit Place search using SMT with State Equation took 2635 ms to find 0 implicit places.
[2025-06-01 10:38:35] [INFO ] Redundant transitions in 31 ms returned []
Running 1200 sub problems to find dead transitions.
[2025-06-01 10:38:35] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:38:35] [INFO ] Invariant cache hit.
[2025-06-01 10:38:35] [INFO ] State equation strengthened by 74 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
[2025-06-01 10:38:57] [INFO ] Deduced a trap composed of 131 places in 454 ms of which 6 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 414/1092 variables, and 4 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30038 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/414 constraints, ReadFeed: 0/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1200 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/414 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/414 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 3 (OVERLAPS) 678/1092 variables, 414/418 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1092 variables, 74/492 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1092/1092 variables, and 1692 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 31264 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 414/414 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
After SMT, in 68040ms problems are : Problem set: 0 solved, 1200 unsolved
Search for dead transitions found 0 dead transitions in 68067ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 70806 ms. Remains : 414/414 places, 1202/1202 transitions.
[2025-06-01 10:39:43] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
Found an invariant !
This invariant on transitions {222=1, 307=1, 504=1, 674=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 337=1, 534=1, 674=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 107 ms. (steps per millisecond=93 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[3993] Max Struct:[+inf]
[2025-06-01 10:39:43] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:39:43] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[3993] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 3605 ms. (277 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 833 ms. (1199 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3993] Max Struct:[+inf]
[2025-06-01 10:39:48] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:39:48] [INFO ] Invariant cache hit.
[2025-06-01 10:39:48] [INFO ] [Real]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 10:39:48] [INFO ] [Real]Absence check using state equation in 230 ms returned sat
[2025-06-01 10:39:48] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:39:48] [INFO ] [Real]Added 74 Read/Feed constraints in 43 ms returned sat
[2025-06-01 10:39:48] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:39:48] [INFO ] [Nat]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:39:49] [INFO ] [Nat]Absence check using state equation in 355 ms returned sat
[2025-06-01 10:39:49] [INFO ] [Nat]Added 74 Read/Feed constraints in 72 ms returned sat
[2025-06-01 10:39:49] [INFO ] Deduced a trap composed of 74 places in 555 ms of which 7 ms to minimize.
[2025-06-01 10:39:49] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 635 ms
[2025-06-01 10:39:49] [INFO ] Computed and/alt/rep : 333/1251/331 causal constraints (skipped 345 transitions) in 128 ms.
[2025-06-01 10:39:50] [INFO ] Added : 7 causal constraints over 4 iterations in 537 ms. Result :sat
Minimization took 527 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3993] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[4008] Max Struct:[+inf]
Support contains 1 out of 414 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 50 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 50 ms. Remains : 414/414 places, 1202/1202 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 49 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
[2025-06-01 10:39:59] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:39:59] [INFO ] Invariant cache hit.
[2025-06-01 10:40:00] [INFO ] Implicit Places using invariants in 812 ms returned []
[2025-06-01 10:40:00] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:40:00] [INFO ] Invariant cache hit.
[2025-06-01 10:40:00] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:40:02] [INFO ] Implicit Places using invariants and state equation in 2430 ms returned []
Implicit Place search using SMT with State Equation took 3245 ms to find 0 implicit places.
[2025-06-01 10:40:02] [INFO ] Redundant transitions in 20 ms returned []
Running 1200 sub problems to find dead transitions.
[2025-06-01 10:40:02] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:40:02] [INFO ] Invariant cache hit.
[2025-06-01 10:40:02] [INFO ] State equation strengthened by 74 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
[2025-06-01 10:40:28] [INFO ] Deduced a trap composed of 131 places in 442 ms of which 6 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 414/1092 variables, and 4 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30055 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/414 constraints, ReadFeed: 0/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1200 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/414 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/414 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 3 (OVERLAPS) 678/1092 variables, 414/418 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1092 variables, 74/492 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1092/1092 variables, and 1692 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 31013 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 414/414 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
After SMT, in 66660ms problems are : Problem set: 0 solved, 1200 unsolved
Search for dead transitions found 0 dead transitions in 66673ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 69998 ms. Remains : 414/414 places, 1202/1202 transitions.
[2025-06-01 10:41:09] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
Found an invariant !
This invariant on transitions {222=1, 307=1, 504=1, 674=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 2 ms.
This minimized invariant on transitions {252=1, 337=1, 534=1, 674=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 37 ms. (steps per millisecond=270 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[4008] Max Struct:[+inf]
[2025-06-01 10:41:10] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:41:10] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[4008] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 3063 ms. (326 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 726 ms. (1375 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[4008] Max Struct:[+inf]
[2025-06-01 10:41:13] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:41:13] [INFO ] Invariant cache hit.
[2025-06-01 10:41:14] [INFO ] [Real]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 10:41:14] [INFO ] [Real]Absence check using state equation in 219 ms returned sat
[2025-06-01 10:41:14] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:41:14] [INFO ] [Real]Added 74 Read/Feed constraints in 39 ms returned sat
[2025-06-01 10:41:14] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:41:14] [INFO ] [Nat]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 10:41:14] [INFO ] [Nat]Absence check using state equation in 312 ms returned sat
[2025-06-01 10:41:14] [INFO ] [Nat]Added 74 Read/Feed constraints in 80 ms returned sat
[2025-06-01 10:41:15] [INFO ] Deduced a trap composed of 74 places in 568 ms of which 7 ms to minimize.
[2025-06-01 10:41:15] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 659 ms
[2025-06-01 10:41:15] [INFO ] Computed and/alt/rep : 333/1251/331 causal constraints (skipped 345 transitions) in 133 ms.
[2025-06-01 10:41:16] [INFO ] Added : 7 causal constraints over 4 iterations in 531 ms. Result :sat
Minimization took 518 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[4008] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[4064] Max Struct:[+inf]
Support contains 1 out of 414 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 48 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 48 ms. Remains : 414/414 places, 1202/1202 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 49 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
[2025-06-01 10:41:25] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:41:25] [INFO ] Invariant cache hit.
[2025-06-01 10:41:25] [INFO ] Implicit Places using invariants in 619 ms returned []
[2025-06-01 10:41:25] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:41:25] [INFO ] Invariant cache hit.
[2025-06-01 10:41:26] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:41:28] [INFO ] Implicit Places using invariants and state equation in 2626 ms returned []
Implicit Place search using SMT with State Equation took 3261 ms to find 0 implicit places.
[2025-06-01 10:41:28] [INFO ] Redundant transitions in 34 ms returned []
Running 1200 sub problems to find dead transitions.
[2025-06-01 10:41:28] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:41:28] [INFO ] Invariant cache hit.
[2025-06-01 10:41:28] [INFO ] State equation strengthened by 74 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
[2025-06-01 10:41:52] [INFO ] Deduced a trap composed of 131 places in 479 ms of which 6 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 414/1092 variables, and 4 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30037 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/414 constraints, ReadFeed: 0/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1200 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/414 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/414 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 3 (OVERLAPS) 678/1092 variables, 414/418 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1092 variables, 74/492 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1092/1092 variables, and 1692 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 31186 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 414/414 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
After SMT, in 67256ms problems are : Problem set: 0 solved, 1200 unsolved
Search for dead transitions found 0 dead transitions in 67277ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 70632 ms. Remains : 414/414 places, 1202/1202 transitions.
[2025-06-01 10:42:35] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
Found an invariant !
This invariant on transitions {222=1, 307=1, 504=1, 674=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 337=1, 534=1, 674=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 86 ms. (steps per millisecond=116 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[4064] Max Struct:[+inf]
[2025-06-01 10:42:36] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:42:36] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[4064] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 3449 ms. (289 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 806 ms. (1239 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[4064] Max Struct:[+inf]
[2025-06-01 10:42:40] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:42:40] [INFO ] Invariant cache hit.
[2025-06-01 10:42:40] [INFO ] [Real]Absence check using 3 positive place invariants in 9 ms returned sat
[2025-06-01 10:42:40] [INFO ] [Real]Absence check using state equation in 306 ms returned sat
[2025-06-01 10:42:40] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:42:40] [INFO ] [Real]Added 74 Read/Feed constraints in 59 ms returned sat
[2025-06-01 10:42:40] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:42:40] [INFO ] [Nat]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 10:42:41] [INFO ] [Nat]Absence check using state equation in 239 ms returned sat
[2025-06-01 10:42:41] [INFO ] [Nat]Added 74 Read/Feed constraints in 43 ms returned sat
[2025-06-01 10:42:41] [INFO ] Deduced a trap composed of 74 places in 507 ms of which 6 ms to minimize.
[2025-06-01 10:42:41] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 562 ms
[2025-06-01 10:42:41] [INFO ] Computed and/alt/rep : 333/1251/331 causal constraints (skipped 345 transitions) in 105 ms.
[2025-06-01 10:42:42] [INFO ] Added : 7 causal constraints over 4 iterations in 464 ms. Result :sat
Minimization took 551 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[4064] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[4082] Max Struct:[+inf]
Support contains 1 out of 414 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 49 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 50 ms. Remains : 414/414 places, 1202/1202 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 48 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
[2025-06-01 10:42:51] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:42:51] [INFO ] Invariant cache hit.
[2025-06-01 10:42:52] [INFO ] Implicit Places using invariants in 850 ms returned []
[2025-06-01 10:42:52] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:42:52] [INFO ] Invariant cache hit.
[2025-06-01 10:42:52] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:42:54] [INFO ] Implicit Places using invariants and state equation in 2305 ms returned []
Implicit Place search using SMT with State Equation took 3156 ms to find 0 implicit places.
[2025-06-01 10:42:54] [INFO ] Redundant transitions in 34 ms returned []
Running 1200 sub problems to find dead transitions.
[2025-06-01 10:42:55] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:42:55] [INFO ] Invariant cache hit.
[2025-06-01 10:42:55] [INFO ] State equation strengthened by 74 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
[2025-06-01 10:43:19] [INFO ] Deduced a trap composed of 131 places in 480 ms of which 7 ms to minimize.
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 414/1092 variables, and 4 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30036 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/414 constraints, ReadFeed: 0/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1200 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/414 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/414 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 3 (OVERLAPS) 678/1092 variables, 414/418 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1092 variables, 74/492 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1092/1092 variables, and 1692 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 31395 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 414/414 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
After SMT, in 66771ms problems are : Problem set: 0 solved, 1200 unsolved
Search for dead transitions found 0 dead transitions in 66792ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 70042 ms. Remains : 414/414 places, 1202/1202 transitions.
[2025-06-01 10:44:01] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
Found an invariant !
This invariant on transitions {222=1, 307=1, 504=1, 674=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 337=1, 534=1, 674=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 57 ms. (steps per millisecond=175 ) properties (out of 1) seen :[3]
Current structural bounds on expressions (after cover walk) : Max Seen:[4082] Max Struct:[+inf]
[2025-06-01 10:44:02] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:44:02] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[4082] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 3298 ms. (303 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 754 ms. (1324 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[4082] Max Struct:[+inf]
[2025-06-01 10:44:06] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:44:06] [INFO ] Invariant cache hit.
[2025-06-01 10:44:06] [INFO ] [Real]Absence check using 3 positive place invariants in 7 ms returned sat
[2025-06-01 10:44:06] [INFO ] [Real]Absence check using state equation in 291 ms returned sat
[2025-06-01 10:44:06] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:44:06] [INFO ] [Real]Added 74 Read/Feed constraints in 63 ms returned sat
[2025-06-01 10:44:06] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:44:06] [INFO ] [Nat]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:44:07] [INFO ] [Nat]Absence check using state equation in 366 ms returned sat
[2025-06-01 10:44:07] [INFO ] [Nat]Added 74 Read/Feed constraints in 78 ms returned sat
[2025-06-01 10:44:07] [INFO ] Deduced a trap composed of 74 places in 577 ms of which 6 ms to minimize.
[2025-06-01 10:44:07] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 651 ms
[2025-06-01 10:44:08] [INFO ] Computed and/alt/rep : 333/1251/331 causal constraints (skipped 345 transitions) in 145 ms.
[2025-06-01 10:44:08] [INFO ] Added : 7 causal constraints over 4 iterations in 544 ms. Result :sat
Minimization took 513 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[4082] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[4241] Max Struct:[+inf]
Support contains 1 out of 414 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 66 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 66 ms. Remains : 414/414 places, 1202/1202 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 59 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
[2025-06-01 10:44:17] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:44:17] [INFO ] Invariant cache hit.
[2025-06-01 10:44:18] [INFO ] Implicit Places using invariants in 621 ms returned []
[2025-06-01 10:44:18] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:44:18] [INFO ] Invariant cache hit.
[2025-06-01 10:44:18] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:44:21] [INFO ] Implicit Places using invariants and state equation in 2684 ms returned []
Implicit Place search using SMT with State Equation took 3318 ms to find 0 implicit places.
[2025-06-01 10:44:21] [INFO ] Redundant transitions in 34 ms returned []
Running 1200 sub problems to find dead transitions.
[2025-06-01 10:44:21] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:44:21] [INFO ] Invariant cache hit.
[2025-06-01 10:44:21] [INFO ] State equation strengthened by 74 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
[2025-06-01 10:44:47] [INFO ] Deduced a trap composed of 131 places in 347 ms of which 6 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 414/1092 variables, and 4 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30036 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/414 constraints, ReadFeed: 0/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1200 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/414 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/414 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 3 (OVERLAPS) 678/1092 variables, 414/418 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1092 variables, 74/492 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1092/1092 variables, and 1692 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30963 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 414/414 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
After SMT, in 67314ms problems are : Problem set: 0 solved, 1200 unsolved
Search for dead transitions found 0 dead transitions in 67339ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 70764 ms. Remains : 414/414 places, 1202/1202 transitions.
[2025-06-01 10:45:28] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
Found an invariant !
This invariant on transitions {222=1, 307=1, 504=1, 674=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 337=1, 534=1, 674=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 38 ms. (steps per millisecond=263 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[4241] Max Struct:[+inf]
[2025-06-01 10:45:28] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:45:28] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[4241] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 3518 ms. (284 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 720 ms. (1386 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[4241] Max Struct:[+inf]
[2025-06-01 10:45:33] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:45:33] [INFO ] Invariant cache hit.
[2025-06-01 10:45:33] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2025-06-01 10:45:33] [INFO ] [Real]Absence check using state equation in 238 ms returned sat
[2025-06-01 10:45:33] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:45:33] [INFO ] [Real]Added 74 Read/Feed constraints in 59 ms returned sat
[2025-06-01 10:45:33] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:45:33] [INFO ] [Nat]Absence check using 3 positive place invariants in 9 ms returned sat
[2025-06-01 10:45:34] [INFO ] [Nat]Absence check using state equation in 347 ms returned sat
[2025-06-01 10:45:34] [INFO ] [Nat]Added 74 Read/Feed constraints in 84 ms returned sat
[2025-06-01 10:45:34] [INFO ] Deduced a trap composed of 74 places in 536 ms of which 7 ms to minimize.
[2025-06-01 10:45:34] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 625 ms
[2025-06-01 10:45:35] [INFO ] Computed and/alt/rep : 333/1251/331 causal constraints (skipped 345 transitions) in 161 ms.
[2025-06-01 10:45:35] [INFO ] Added : 7 causal constraints over 4 iterations in 576 ms. Result :sat
Minimization took 509 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[4241] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[4452] Max Struct:[+inf]
Support contains 1 out of 414 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 58 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 58 ms. Remains : 414/414 places, 1202/1202 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 64 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
[2025-06-01 10:45:46] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:45:46] [INFO ] Invariant cache hit.
[2025-06-01 10:45:46] [INFO ] Implicit Places using invariants in 662 ms returned []
[2025-06-01 10:45:46] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:45:46] [INFO ] Invariant cache hit.
[2025-06-01 10:45:47] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:45:48] [INFO ] Implicit Places using invariants and state equation in 2164 ms returned []
Implicit Place search using SMT with State Equation took 2868 ms to find 0 implicit places.
[2025-06-01 10:45:48] [INFO ] Redundant transitions in 20 ms returned []
Running 1200 sub problems to find dead transitions.
[2025-06-01 10:45:48] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:45:48] [INFO ] Invariant cache hit.
[2025-06-01 10:45:48] [INFO ] State equation strengthened by 74 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
[2025-06-01 10:46:14] [INFO ] Deduced a trap composed of 131 places in 485 ms of which 6 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 414/1092 variables, and 4 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30040 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/414 constraints, ReadFeed: 0/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1200 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/414 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/414 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 3 (OVERLAPS) 678/1092 variables, 414/418 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1092 variables, 74/492 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1092/1092 variables, and 1692 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 31040 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 414/414 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
After SMT, in 67944ms problems are : Problem set: 0 solved, 1200 unsolved
Search for dead transitions found 0 dead transitions in 67959ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 70924 ms. Remains : 414/414 places, 1202/1202 transitions.
[2025-06-01 10:46:56] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
Found an invariant !
This invariant on transitions {222=1, 307=1, 504=1, 674=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 337=1, 534=1, 674=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 61 ms. (steps per millisecond=163 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[4452] Max Struct:[+inf]
[2025-06-01 10:46:57] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:46:57] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[4452] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 3203 ms. (312 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 923 ms. (1082 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[4452] Max Struct:[+inf]
[2025-06-01 10:47:01] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:47:01] [INFO ] Invariant cache hit.
[2025-06-01 10:47:01] [INFO ] [Real]Absence check using 3 positive place invariants in 8 ms returned sat
[2025-06-01 10:47:01] [INFO ] [Real]Absence check using state equation in 266 ms returned sat
[2025-06-01 10:47:01] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:47:01] [INFO ] [Real]Added 74 Read/Feed constraints in 44 ms returned sat
[2025-06-01 10:47:01] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:47:01] [INFO ] [Nat]Absence check using 3 positive place invariants in 7 ms returned sat
[2025-06-01 10:47:02] [INFO ] [Nat]Absence check using state equation in 381 ms returned sat
[2025-06-01 10:47:02] [INFO ] [Nat]Added 74 Read/Feed constraints in 72 ms returned sat
[2025-06-01 10:47:02] [INFO ] Deduced a trap composed of 74 places in 468 ms of which 5 ms to minimize.
[2025-06-01 10:47:02] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 557 ms
[2025-06-01 10:47:03] [INFO ] Computed and/alt/rep : 333/1251/331 causal constraints (skipped 345 transitions) in 127 ms.
[2025-06-01 10:47:03] [INFO ] Added : 7 causal constraints over 4 iterations in 518 ms. Result :sat
Minimization took 514 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[4452] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[4566] Max Struct:[+inf]
Support contains 1 out of 414 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 54 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 54 ms. Remains : 414/414 places, 1202/1202 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 58 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
[2025-06-01 10:47:13] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:47:13] [INFO ] Invariant cache hit.
[2025-06-01 10:47:14] [INFO ] Implicit Places using invariants in 840 ms returned []
[2025-06-01 10:47:14] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:47:14] [INFO ] Invariant cache hit.
[2025-06-01 10:47:14] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:47:16] [INFO ] Implicit Places using invariants and state equation in 2296 ms returned []
Implicit Place search using SMT with State Equation took 3138 ms to find 0 implicit places.
[2025-06-01 10:47:16] [INFO ] Redundant transitions in 22 ms returned []
Running 1200 sub problems to find dead transitions.
[2025-06-01 10:47:16] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:47:16] [INFO ] Invariant cache hit.
[2025-06-01 10:47:16] [INFO ] State equation strengthened by 74 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
[2025-06-01 10:47:39] [INFO ] Deduced a trap composed of 131 places in 297 ms of which 5 ms to minimize.
Error getting values : (error "Error writing to Z3 solver: java.io.IOException: Broken pipe")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 414/1092 variables, and 4 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30031 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/414 constraints, ReadFeed: 0/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1200 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/414 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/414 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 3 (OVERLAPS) 678/1092 variables, 414/418 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1092 variables, 74/492 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1092/1092 variables, and 1692 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30772 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 414/414 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
After SMT, in 67073ms problems are : Problem set: 0 solved, 1200 unsolved
Search for dead transitions found 0 dead transitions in 67090ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 70320 ms. Remains : 414/414 places, 1202/1202 transitions.
[2025-06-01 10:48:23] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
Found an invariant !
This invariant on transitions {222=1, 307=1, 504=1, 674=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 337=1, 534=1, 674=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 72 ms. (steps per millisecond=138 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[4566] Max Struct:[+inf]
[2025-06-01 10:48:24] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:48:24] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[4566] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 3508 ms. (284 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 723 ms. (1381 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[4566] Max Struct:[+inf]
[2025-06-01 10:48:28] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:48:28] [INFO ] Invariant cache hit.
[2025-06-01 10:48:28] [INFO ] [Real]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 10:48:28] [INFO ] [Real]Absence check using state equation in 227 ms returned sat
[2025-06-01 10:48:28] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:48:28] [INFO ] [Real]Added 74 Read/Feed constraints in 37 ms returned sat
[2025-06-01 10:48:28] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:48:28] [INFO ] [Nat]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 10:48:29] [INFO ] [Nat]Absence check using state equation in 314 ms returned sat
[2025-06-01 10:48:29] [INFO ] [Nat]Added 74 Read/Feed constraints in 82 ms returned sat
[2025-06-01 10:48:29] [INFO ] Deduced a trap composed of 74 places in 466 ms of which 4 ms to minimize.
[2025-06-01 10:48:29] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 544 ms
[2025-06-01 10:48:29] [INFO ] Computed and/alt/rep : 333/1251/331 causal constraints (skipped 345 transitions) in 89 ms.
[2025-06-01 10:48:30] [INFO ] Added : 7 causal constraints over 4 iterations in 431 ms. Result :sat
Minimization took 504 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[4566] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[4609] Max Struct:[+inf]
Support contains 1 out of 414 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 50 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 50 ms. Remains : 414/414 places, 1202/1202 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 48 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
[2025-06-01 10:48:40] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:48:40] [INFO ] Invariant cache hit.
[2025-06-01 10:48:41] [INFO ] Implicit Places using invariants in 920 ms returned []
[2025-06-01 10:48:41] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:48:41] [INFO ] Invariant cache hit.
[2025-06-01 10:48:41] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:48:43] [INFO ] Implicit Places using invariants and state equation in 2479 ms returned []
Implicit Place search using SMT with State Equation took 3412 ms to find 0 implicit places.
[2025-06-01 10:48:43] [INFO ] Redundant transitions in 20 ms returned []
Running 1200 sub problems to find dead transitions.
[2025-06-01 10:48:43] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:48:43] [INFO ] Invariant cache hit.
[2025-06-01 10:48:43] [INFO ] State equation strengthened by 74 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
[2025-06-01 10:49:08] [INFO ] Deduced a trap composed of 131 places in 484 ms of which 6 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 414/1092 variables, and 4 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30042 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/414 constraints, ReadFeed: 0/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1200 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/414 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/414 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 3 (OVERLAPS) 678/1092 variables, 414/418 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1092 variables, 74/492 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1092/1092 variables, and 1692 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30959 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 414/414 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
After SMT, in 66609ms problems are : Problem set: 0 solved, 1200 unsolved
Search for dead transitions found 0 dead transitions in 66622ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 70113 ms. Remains : 414/414 places, 1202/1202 transitions.
[2025-06-01 10:49:50] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
Found an invariant !
This invariant on transitions {222=1, 307=1, 504=1, 674=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 337=1, 534=1, 674=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 43 ms. (steps per millisecond=232 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[4609] Max Struct:[+inf]
[2025-06-01 10:49:50] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:49:50] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[4609] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 3185 ms. (313 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 920 ms. (1085 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[4609] Max Struct:[+inf]
[2025-06-01 10:49:54] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:49:54] [INFO ] Invariant cache hit.
[2025-06-01 10:49:54] [INFO ] [Real]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 10:49:55] [INFO ] [Real]Absence check using state equation in 239 ms returned sat
[2025-06-01 10:49:55] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:49:55] [INFO ] [Real]Added 74 Read/Feed constraints in 66 ms returned sat
[2025-06-01 10:49:55] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:49:55] [INFO ] [Nat]Absence check using 3 positive place invariants in 9 ms returned sat
[2025-06-01 10:49:55] [INFO ] [Nat]Absence check using state equation in 334 ms returned sat
[2025-06-01 10:49:55] [INFO ] [Nat]Added 74 Read/Feed constraints in 77 ms returned sat
[2025-06-01 10:49:56] [INFO ] Deduced a trap composed of 74 places in 555 ms of which 6 ms to minimize.
[2025-06-01 10:49:56] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 644 ms
[2025-06-01 10:49:56] [INFO ] Computed and/alt/rep : 333/1251/331 causal constraints (skipped 345 transitions) in 129 ms.
[2025-06-01 10:49:56] [INFO ] Added : 7 causal constraints over 4 iterations in 539 ms. Result :sat
Minimization took 497 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[4609] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[4649] Max Struct:[+inf]
Support contains 1 out of 414 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 47 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 54 ms. Remains : 414/414 places, 1202/1202 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 51 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
[2025-06-01 10:50:07] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:50:07] [INFO ] Invariant cache hit.
[2025-06-01 10:50:07] [INFO ] Implicit Places using invariants in 603 ms returned []
[2025-06-01 10:50:07] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:50:07] [INFO ] Invariant cache hit.
[2025-06-01 10:50:07] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:50:09] [INFO ] Implicit Places using invariants and state equation in 1990 ms returned []
Implicit Place search using SMT with State Equation took 2608 ms to find 0 implicit places.
[2025-06-01 10:50:09] [INFO ] Redundant transitions in 21 ms returned []
Running 1200 sub problems to find dead transitions.
[2025-06-01 10:50:09] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:50:09] [INFO ] Invariant cache hit.
[2025-06-01 10:50:09] [INFO ] State equation strengthened by 74 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
[2025-06-01 10:50:36] [INFO ] Deduced a trap composed of 131 places in 508 ms of which 6 ms to minimize.
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 414/1092 variables, and 4 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30037 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/414 constraints, ReadFeed: 0/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1200 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/414 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/414 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 3 (OVERLAPS) 678/1092 variables, 414/418 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1092 variables, 74/492 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1092/1092 variables, and 1692 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 31154 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 414/414 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
After SMT, in 67525ms problems are : Problem set: 0 solved, 1200 unsolved
Search for dead transitions found 0 dead transitions in 67539ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 70234 ms. Remains : 414/414 places, 1202/1202 transitions.
[2025-06-01 10:51:17] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
Found an invariant !
This invariant on transitions {222=1, 307=1, 504=1, 674=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 337=1, 534=1, 674=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 88 ms. (steps per millisecond=113 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[4649] Max Struct:[+inf]
[2025-06-01 10:51:17] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:51:17] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[4649] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 3452 ms. (289 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 736 ms. (1356 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[4649] Max Struct:[+inf]
[2025-06-01 10:51:21] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:51:21] [INFO ] Invariant cache hit.
[2025-06-01 10:51:21] [INFO ] [Real]Absence check using 3 positive place invariants in 9 ms returned sat
[2025-06-01 10:51:22] [INFO ] [Real]Absence check using state equation in 313 ms returned sat
[2025-06-01 10:51:22] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:51:22] [INFO ] [Real]Added 74 Read/Feed constraints in 66 ms returned sat
[2025-06-01 10:51:22] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:51:22] [INFO ] [Nat]Absence check using 3 positive place invariants in 7 ms returned sat
[2025-06-01 10:51:22] [INFO ] [Nat]Absence check using state equation in 288 ms returned sat
[2025-06-01 10:51:22] [INFO ] [Nat]Added 74 Read/Feed constraints in 52 ms returned sat
[2025-06-01 10:51:23] [INFO ] Deduced a trap composed of 74 places in 552 ms of which 6 ms to minimize.
[2025-06-01 10:51:23] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 616 ms
[2025-06-01 10:51:23] [INFO ] Computed and/alt/rep : 333/1251/331 causal constraints (skipped 345 transitions) in 132 ms.
[2025-06-01 10:51:23] [INFO ] Added : 7 causal constraints over 4 iterations in 524 ms. Result :sat
Minimization took 542 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[4649] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[4666] Max Struct:[+inf]
Support contains 1 out of 414 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 48 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 49 ms. Remains : 414/414 places, 1202/1202 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 52 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
[2025-06-01 10:51:34] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:51:34] [INFO ] Invariant cache hit.
[2025-06-01 10:51:35] [INFO ] Implicit Places using invariants in 789 ms returned []
[2025-06-01 10:51:35] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:51:35] [INFO ] Invariant cache hit.
[2025-06-01 10:51:35] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:51:37] [INFO ] Implicit Places using invariants and state equation in 2682 ms returned []
Implicit Place search using SMT with State Equation took 3473 ms to find 0 implicit places.
[2025-06-01 10:51:37] [INFO ] Redundant transitions in 21 ms returned []
Running 1200 sub problems to find dead transitions.
[2025-06-01 10:51:37] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:51:37] [INFO ] Invariant cache hit.
[2025-06-01 10:51:37] [INFO ] State equation strengthened by 74 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
[2025-06-01 10:52:03] [INFO ] Deduced a trap composed of 131 places in 537 ms of which 7 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 414/1092 variables, and 4 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30036 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/414 constraints, ReadFeed: 0/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1200 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/414 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/414 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 3 (OVERLAPS) 678/1092 variables, 414/418 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1092 variables, 74/492 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1092/1092 variables, and 1692 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 31367 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 414/414 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
After SMT, in 67240ms problems are : Problem set: 0 solved, 1200 unsolved
Search for dead transitions found 0 dead transitions in 67253ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 70808 ms. Remains : 414/414 places, 1202/1202 transitions.
[2025-06-01 10:52:45] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
Found an invariant !
This invariant on transitions {222=1, 307=1, 504=1, 674=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 337=1, 534=1, 674=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 67 ms. (steps per millisecond=149 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[4666] Max Struct:[+inf]
[2025-06-01 10:52:45] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:52:45] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[4666] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 3386 ms. (295 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 780 ms. (1280 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[4666] Max Struct:[+inf]
[2025-06-01 10:52:49] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:52:49] [INFO ] Invariant cache hit.
[2025-06-01 10:52:49] [INFO ] [Real]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 10:52:50] [INFO ] [Real]Absence check using state equation in 323 ms returned sat
[2025-06-01 10:52:50] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:52:50] [INFO ] [Real]Added 74 Read/Feed constraints in 61 ms returned sat
[2025-06-01 10:52:50] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:52:50] [INFO ] [Nat]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 10:52:50] [INFO ] [Nat]Absence check using state equation in 258 ms returned sat
[2025-06-01 10:52:50] [INFO ] [Nat]Added 74 Read/Feed constraints in 55 ms returned sat
[2025-06-01 10:52:51] [INFO ] Deduced a trap composed of 74 places in 510 ms of which 6 ms to minimize.
[2025-06-01 10:52:51] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 562 ms
[2025-06-01 10:52:51] [INFO ] Computed and/alt/rep : 333/1251/331 causal constraints (skipped 345 transitions) in 84 ms.
[2025-06-01 10:52:51] [INFO ] Added : 7 causal constraints over 4 iterations in 463 ms. Result :sat
Minimization took 552 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[4666] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[4709] Max Struct:[+inf]
Support contains 1 out of 414 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 48 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 48 ms. Remains : 414/414 places, 1202/1202 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 47 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
[2025-06-01 10:53:02] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:53:02] [INFO ] Invariant cache hit.
[2025-06-01 10:53:03] [INFO ] Implicit Places using invariants in 793 ms returned []
[2025-06-01 10:53:03] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:53:03] [INFO ] Invariant cache hit.
[2025-06-01 10:53:04] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:53:05] [INFO ] Implicit Places using invariants and state equation in 2471 ms returned []
Implicit Place search using SMT with State Equation took 3271 ms to find 0 implicit places.
[2025-06-01 10:53:06] [INFO ] Redundant transitions in 34 ms returned []
Running 1200 sub problems to find dead transitions.
[2025-06-01 10:53:06] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:53:06] [INFO ] Invariant cache hit.
[2025-06-01 10:53:06] [INFO ] State equation strengthened by 74 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
[2025-06-01 10:53:31] [INFO ] Deduced a trap composed of 131 places in 480 ms of which 6 ms to minimize.
(s361 0.0timeout
^^^^^^^^^^
(error "Invalid token: 0.0timeout")
Error getting values : (error "ParserException while parsing response: ((s0 0.0)
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) org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 414/1092 variables, and 4 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30049 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/414 constraints, ReadFeed: 0/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1200 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/414 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/414 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 3 (OVERLAPS) 678/1092 variables, 414/418 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1092 variables, 74/492 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1092/1092 variables, and 1692 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 31180 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 414/414 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
After SMT, in 66537ms problems are : Problem set: 0 solved, 1200 unsolved
Search for dead transitions found 0 dead transitions in 66559ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 69924 ms. Remains : 414/414 places, 1202/1202 transitions.
[2025-06-01 10:54:12] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
Found an invariant !
This invariant on transitions {222=1, 307=1, 504=1, 674=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 337=1, 534=1, 674=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 49 ms. (steps per millisecond=204 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[4709] Max Struct:[+inf]
[2025-06-01 10:54:13] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:54:13] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[4709] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 3392 ms. (294 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 715 ms. (1396 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[4709] Max Struct:[+inf]
[2025-06-01 10:54:17] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:54:17] [INFO ] Invariant cache hit.
[2025-06-01 10:54:17] [INFO ] [Real]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 10:54:17] [INFO ] [Real]Absence check using state equation in 296 ms returned sat
[2025-06-01 10:54:17] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:54:17] [INFO ] [Real]Added 74 Read/Feed constraints in 59 ms returned sat
[2025-06-01 10:54:17] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:54:17] [INFO ] [Nat]Absence check using 3 positive place invariants in 9 ms returned sat
[2025-06-01 10:54:18] [INFO ] [Nat]Absence check using state equation in 317 ms returned sat
[2025-06-01 10:54:18] [INFO ] [Nat]Added 74 Read/Feed constraints in 72 ms returned sat
[2025-06-01 10:54:18] [INFO ] Deduced a trap composed of 74 places in 509 ms of which 7 ms to minimize.
[2025-06-01 10:54:18] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 582 ms
[2025-06-01 10:54:19] [INFO ] Computed and/alt/rep : 333/1251/331 causal constraints (skipped 345 transitions) in 94 ms.
[2025-06-01 10:54:19] [INFO ] Added : 7 causal constraints over 4 iterations in 451 ms. Result :sat
Minimization took 511 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[4709] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[4721] Max Struct:[+inf]
Support contains 1 out of 414 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 48 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 48 ms. Remains : 414/414 places, 1202/1202 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 47 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
[2025-06-01 10:54:30] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:54:30] [INFO ] Invariant cache hit.
[2025-06-01 10:54:30] [INFO ] Implicit Places using invariants in 665 ms returned []
[2025-06-01 10:54:30] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:54:30] [INFO ] Invariant cache hit.
[2025-06-01 10:54:31] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:54:33] [INFO ] Implicit Places using invariants and state equation in 2705 ms returned []
Implicit Place search using SMT with State Equation took 3376 ms to find 0 implicit places.
[2025-06-01 10:54:33] [INFO ] Redundant transitions in 33 ms returned []
Running 1200 sub problems to find dead transitions.
[2025-06-01 10:54:33] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:54:33] [INFO ] Invariant cache hit.
[2025-06-01 10:54:33] [INFO ] State equation strengthened by 74 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
[2025-06-01 10:54:57] [INFO ] Deduced a trap composed of 131 places in 337 ms of which 5 ms to minimize.
Error getting values : (error "ParserException while parsing response: ((s0 1.0)
(s1 0.0)
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org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 414/1092 variables, and 4 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30034 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/414 constraints, ReadFeed: 0/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1200 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/414 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/414 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 3 (OVERLAPS) 678/1092 variables, 414/418 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1092 variables, 74/492 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1092/1092 variables, and 1692 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30939 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 414/414 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
After SMT, in 66043ms problems are : Problem set: 0 solved, 1200 unsolved
Search for dead transitions found 0 dead transitions in 66064ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 69535 ms. Remains : 414/414 places, 1202/1202 transitions.
[2025-06-01 10:55:39] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
Found an invariant !
This invariant on transitions {222=1, 307=1, 504=1, 674=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 337=1, 534=1, 674=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 33 ms. (steps per millisecond=303 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[4721] Max Struct:[+inf]
[2025-06-01 10:55:40] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:55:40] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[4721] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 3412 ms. (292 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 801 ms. (1246 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[4721] Max Struct:[+inf]
[2025-06-01 10:55:44] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:55:44] [INFO ] Invariant cache hit.
[2025-06-01 10:55:44] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2025-06-01 10:55:44] [INFO ] [Real]Absence check using state equation in 249 ms returned sat
[2025-06-01 10:55:44] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:55:44] [INFO ] [Real]Added 74 Read/Feed constraints in 42 ms returned sat
[2025-06-01 10:55:44] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:55:44] [INFO ] [Nat]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 10:55:45] [INFO ] [Nat]Absence check using state equation in 277 ms returned sat
[2025-06-01 10:55:45] [INFO ] [Nat]Added 74 Read/Feed constraints in 52 ms returned sat
[2025-06-01 10:55:45] [INFO ] Deduced a trap composed of 74 places in 489 ms of which 4 ms to minimize.
[2025-06-01 10:55:45] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 560 ms
[2025-06-01 10:55:45] [INFO ] Computed and/alt/rep : 333/1251/331 causal constraints (skipped 345 transitions) in 148 ms.
[2025-06-01 10:55:46] [INFO ] Added : 7 causal constraints over 4 iterations in 531 ms. Result :sat
Minimization took 521 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[4721] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[4730] Max Struct:[+inf]
Support contains 1 out of 414 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 61 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 62 ms. Remains : 414/414 places, 1202/1202 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 47 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
[2025-06-01 10:55:57] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:55:57] [INFO ] Invariant cache hit.
[2025-06-01 10:55:58] [INFO ] Implicit Places using invariants in 774 ms returned []
[2025-06-01 10:55:58] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:55:58] [INFO ] Invariant cache hit.
[2025-06-01 10:55:58] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:56:00] [INFO ] Implicit Places using invariants and state equation in 2452 ms returned []
Implicit Place search using SMT with State Equation took 3249 ms to find 0 implicit places.
[2025-06-01 10:56:00] [INFO ] Redundant transitions in 24 ms returned []
Running 1200 sub problems to find dead transitions.
[2025-06-01 10:56:00] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:56:00] [INFO ] Invariant cache hit.
[2025-06-01 10:56:00] [INFO ] State equation strengthened by 74 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
[2025-06-01 10:56:26] [INFO ] Deduced a trap composed of 131 places in 516 ms of which 7 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 414/1092 variables, and 4 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30037 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/414 constraints, ReadFeed: 0/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1200 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/414 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/414 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 3 (OVERLAPS) 678/1092 variables, 414/418 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1092 variables, 74/492 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1092/1092 variables, and 1692 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 31309 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 414/414 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
After SMT, in 67668ms problems are : Problem set: 0 solved, 1200 unsolved
Search for dead transitions found 0 dead transitions in 67682ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 71011 ms. Remains : 414/414 places, 1202/1202 transitions.
[2025-06-01 10:57:08] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
Found an invariant !
This invariant on transitions {222=1, 307=1, 504=1, 674=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 337=1, 534=1, 674=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 72 ms. (steps per millisecond=138 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[4730] Max Struct:[+inf]
[2025-06-01 10:57:08] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:57:08] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[4730] Max Struct:[+inf]
RANDOM walk for 1000002 steps (2 resets) in 3375 ms. (296 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 777 ms. (1285 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[4730] Max Struct:[+inf]
[2025-06-01 10:57:13] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:57:13] [INFO ] Invariant cache hit.
[2025-06-01 10:57:13] [INFO ] [Real]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 10:57:13] [INFO ] [Real]Absence check using state equation in 231 ms returned sat
[2025-06-01 10:57:13] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:57:13] [INFO ] [Real]Added 74 Read/Feed constraints in 39 ms returned sat
[2025-06-01 10:57:13] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:57:13] [INFO ] [Nat]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 10:57:13] [INFO ] [Nat]Absence check using state equation in 257 ms returned sat
[2025-06-01 10:57:13] [INFO ] [Nat]Added 74 Read/Feed constraints in 49 ms returned sat
[2025-06-01 10:57:14] [INFO ] Deduced a trap composed of 74 places in 480 ms of which 5 ms to minimize.
[2025-06-01 10:57:14] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 541 ms
[2025-06-01 10:57:14] [INFO ] Computed and/alt/rep : 333/1251/331 causal constraints (skipped 345 transitions) in 84 ms.
[2025-06-01 10:57:14] [INFO ] Added : 7 causal constraints over 4 iterations in 336 ms. Result :sat
Minimization took 376 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[4730] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[4776] Max Struct:[+inf]
Support contains 1 out of 414 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 48 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 48 ms. Remains : 414/414 places, 1202/1202 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 59 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
[2025-06-01 10:57:25] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:57:25] [INFO ] Invariant cache hit.
[2025-06-01 10:57:26] [INFO ] Implicit Places using invariants in 1002 ms returned []
[2025-06-01 10:57:26] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:57:26] [INFO ] Invariant cache hit.
[2025-06-01 10:57:26] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:57:28] [INFO ] Implicit Places using invariants and state equation in 2575 ms returned []
Implicit Place search using SMT with State Equation took 3604 ms to find 0 implicit places.
[2025-06-01 10:57:28] [INFO ] Redundant transitions in 34 ms returned []
Running 1200 sub problems to find dead transitions.
[2025-06-01 10:57:28] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:57:28] [INFO ] Invariant cache hit.
[2025-06-01 10:57:28] [INFO ] State equation strengthened by 74 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
[2025-06-01 10:57:54] [INFO ] Deduced a trap composed of 131 places in 488 ms of which 8 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 414/1092 variables, and 4 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30044 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/414 constraints, ReadFeed: 0/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1200 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/414 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/414 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 3 (OVERLAPS) 678/1092 variables, 414/418 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1092 variables, 74/492 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1092/1092 variables, and 1692 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30991 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 414/414 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
After SMT, in 67885ms problems are : Problem set: 0 solved, 1200 unsolved
Search for dead transitions found 0 dead transitions in 67908ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 71622 ms. Remains : 414/414 places, 1202/1202 transitions.
[2025-06-01 10:58:36] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
Found an invariant !
This invariant on transitions {222=1, 307=1, 504=1, 674=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 337=1, 534=1, 674=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 54 ms. (steps per millisecond=185 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[4776] Max Struct:[+inf]
[2025-06-01 10:58:37] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:58:37] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[4776] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 3055 ms. (327 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 773 ms. (1291 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[4776] Max Struct:[+inf]
[2025-06-01 10:58:40] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:58:40] [INFO ] Invariant cache hit.
[2025-06-01 10:58:41] [INFO ] [Real]Absence check using 3 positive place invariants in 9 ms returned sat
[2025-06-01 10:58:41] [INFO ] [Real]Absence check using state equation in 342 ms returned sat
[2025-06-01 10:58:41] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:58:41] [INFO ] [Real]Added 74 Read/Feed constraints in 66 ms returned sat
[2025-06-01 10:58:41] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 10:58:41] [INFO ] [Nat]Absence check using 3 positive place invariants in 9 ms returned sat
[2025-06-01 10:58:42] [INFO ] [Nat]Absence check using state equation in 351 ms returned sat
[2025-06-01 10:58:42] [INFO ] [Nat]Added 74 Read/Feed constraints in 80 ms returned sat
[2025-06-01 10:58:42] [INFO ] Deduced a trap composed of 74 places in 576 ms of which 7 ms to minimize.
[2025-06-01 10:58:42] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 662 ms
[2025-06-01 10:58:42] [INFO ] Computed and/alt/rep : 333/1251/331 causal constraints (skipped 345 transitions) in 130 ms.
[2025-06-01 10:58:43] [INFO ] Added : 7 causal constraints over 4 iterations in 534 ms. Result :sat
Minimization took 527 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[4776] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[4836] Max Struct:[+inf]
Support contains 1 out of 414 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 72 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 74 ms. Remains : 414/414 places, 1202/1202 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 55 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
[2025-06-01 10:58:55] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:58:55] [INFO ] Invariant cache hit.
[2025-06-01 10:58:56] [INFO ] Implicit Places using invariants in 960 ms returned []
[2025-06-01 10:58:56] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:58:56] [INFO ] Invariant cache hit.
[2025-06-01 10:58:56] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 10:58:59] [INFO ] Implicit Places using invariants and state equation in 2778 ms returned []
Implicit Place search using SMT with State Equation took 3745 ms to find 0 implicit places.
[2025-06-01 10:58:59] [INFO ] Redundant transitions in 29 ms returned []
Running 1200 sub problems to find dead transitions.
[2025-06-01 10:58:59] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 10:58:59] [INFO ] Invariant cache hit.
[2025-06-01 10:58:59] [INFO ] State equation strengthened by 74 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
[2025-06-01 10:59:23] [INFO ] Deduced a trap composed of 131 places in 249 ms of which 4 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 414/1092 variables, and 4 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30027 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/414 constraints, ReadFeed: 0/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1200 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/414 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/414 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 3 (OVERLAPS) 678/1092 variables, 414/418 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1092 variables, 74/492 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1092/1092 variables, and 1692 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30857 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 414/414 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
After SMT, in 67163ms problems are : Problem set: 0 solved, 1200 unsolved
Search for dead transitions found 0 dead transitions in 67183ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 71023 ms. Remains : 414/414 places, 1202/1202 transitions.
[2025-06-01 11:00:06] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
Found an invariant !
This invariant on transitions {222=1, 307=1, 504=1, 674=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 337=1, 534=1, 674=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 37 ms. (steps per millisecond=270 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[4836] Max Struct:[+inf]
[2025-06-01 11:00:06] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:00:06] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[4836] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 3465 ms. (288 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 743 ms. (1344 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[4836] Max Struct:[+inf]
[2025-06-01 11:00:10] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:00:10] [INFO ] Invariant cache hit.
[2025-06-01 11:00:11] [INFO ] [Real]Absence check using 3 positive place invariants in 9 ms returned sat
[2025-06-01 11:00:11] [INFO ] [Real]Absence check using state equation in 321 ms returned sat
[2025-06-01 11:00:11] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 11:00:11] [INFO ] [Real]Added 74 Read/Feed constraints in 60 ms returned sat
[2025-06-01 11:00:11] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 11:00:11] [INFO ] [Nat]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 11:00:11] [INFO ] [Nat]Absence check using state equation in 372 ms returned sat
[2025-06-01 11:00:12] [INFO ] [Nat]Added 74 Read/Feed constraints in 74 ms returned sat
[2025-06-01 11:00:12] [INFO ] Deduced a trap composed of 74 places in 575 ms of which 7 ms to minimize.
[2025-06-01 11:00:12] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 655 ms
[2025-06-01 11:00:12] [INFO ] Computed and/alt/rep : 333/1251/331 causal constraints (skipped 345 transitions) in 131 ms.
[2025-06-01 11:00:13] [INFO ] Added : 7 causal constraints over 4 iterations in 534 ms. Result :sat
Minimization took 520 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[4836] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[4894] Max Struct:[+inf]
Support contains 1 out of 414 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 87 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 87 ms. Remains : 414/414 places, 1202/1202 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 81 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
[2025-06-01 11:00:24] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:00:24] [INFO ] Invariant cache hit.
[2025-06-01 11:00:25] [INFO ] Implicit Places using invariants in 973 ms returned []
[2025-06-01 11:00:25] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:00:25] [INFO ] Invariant cache hit.
[2025-06-01 11:00:25] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 11:00:27] [INFO ] Implicit Places using invariants and state equation in 2759 ms returned []
Implicit Place search using SMT with State Equation took 3739 ms to find 0 implicit places.
[2025-06-01 11:00:27] [INFO ] Redundant transitions in 34 ms returned []
Running 1200 sub problems to find dead transitions.
[2025-06-01 11:00:27] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:00:27] [INFO ] Invariant cache hit.
[2025-06-01 11:00:27] [INFO ] State equation strengthened by 74 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
[2025-06-01 11:00:51] [INFO ] Deduced a trap composed of 131 places in 304 ms of which 4 ms to minimize.
Error getting values : (error "Error writing to Z3 solver: java.io.IOException: Broken pipe")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 414/1092 variables, and 4 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30036 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/414 constraints, ReadFeed: 0/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1200 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/414 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/414 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 3 (OVERLAPS) 678/1092 variables, 414/418 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1092 variables, 74/492 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1092/1092 variables, and 1692 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30601 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 414/414 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
After SMT, in 66477ms problems are : Problem set: 0 solved, 1200 unsolved
Search for dead transitions found 0 dead transitions in 66506ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 70371 ms. Remains : 414/414 places, 1202/1202 transitions.
[2025-06-01 11:01:34] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
Found an invariant !
This invariant on transitions {222=1, 307=1, 504=1, 674=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 337=1, 534=1, 674=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 44 ms. (steps per millisecond=227 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[4894] Max Struct:[+inf]
[2025-06-01 11:01:34] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:01:34] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[4894] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 3146 ms. (317 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 748 ms. (1335 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[4894] Max Struct:[+inf]
[2025-06-01 11:01:38] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:01:38] [INFO ] Invariant cache hit.
[2025-06-01 11:01:38] [INFO ] [Real]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 11:01:39] [INFO ] [Real]Absence check using state equation in 313 ms returned sat
[2025-06-01 11:01:39] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 11:01:39] [INFO ] [Real]Added 74 Read/Feed constraints in 62 ms returned sat
[2025-06-01 11:01:39] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 11:01:39] [INFO ] [Nat]Absence check using 3 positive place invariants in 9 ms returned sat
[2025-06-01 11:01:39] [INFO ] [Nat]Absence check using state equation in 330 ms returned sat
[2025-06-01 11:01:39] [INFO ] [Nat]Added 74 Read/Feed constraints in 70 ms returned sat
[2025-06-01 11:01:40] [INFO ] Deduced a trap composed of 74 places in 569 ms of which 7 ms to minimize.
[2025-06-01 11:01:40] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 648 ms
[2025-06-01 11:01:40] [INFO ] Computed and/alt/rep : 333/1251/331 causal constraints (skipped 345 transitions) in 135 ms.
[2025-06-01 11:01:41] [INFO ] Added : 7 causal constraints over 4 iterations in 516 ms. Result :sat
Minimization took 510 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[4894] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[5005] Max Struct:[+inf]
Support contains 1 out of 414 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 60 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 62 ms. Remains : 414/414 places, 1202/1202 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 47 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
[2025-06-01 11:01:52] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:01:52] [INFO ] Invariant cache hit.
[2025-06-01 11:01:53] [INFO ] Implicit Places using invariants in 1025 ms returned []
[2025-06-01 11:01:53] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:01:53] [INFO ] Invariant cache hit.
[2025-06-01 11:01:53] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 11:01:55] [INFO ] Implicit Places using invariants and state equation in 2507 ms returned []
Implicit Place search using SMT with State Equation took 3538 ms to find 0 implicit places.
[2025-06-01 11:01:55] [INFO ] Redundant transitions in 33 ms returned []
Running 1200 sub problems to find dead transitions.
[2025-06-01 11:01:55] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:01:55] [INFO ] Invariant cache hit.
[2025-06-01 11:01:55] [INFO ] State equation strengthened by 74 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
[2025-06-01 11:02:21] [INFO ] Deduced a trap composed of 131 places in 328 ms of which 5 ms to minimize.
(s405 0.0timeout
^^^^^^^^^^
(error "Invalid token: 0.0timeout")
Error getting values : (error "ParserException while parsing response: ((s0 0.0)
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(s349 0.0)
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(s351 0.0)
(s352 0.0)
(s353 0.0)
(s354 0.0)
(s355 0.0)
(s356 0.0)
(s357 0.0)
(s358 0.0)
(s359 0.0)
(s360 0.0)
(s361 0.0)
(s362 0.0)
(s363 0.0)
(s364 0.0)
(s365 0.0)
(s366 0.0)
(s367 0.0)
(s368 0.0)
(s369 0.0)
(s370 0.0)
(s371 0.0)
(s372 0.0)
(s373 0.0)
(s374 0.0)
(s375 0.0)
(s376 0.0)
(s377 0.0)
(s378 0.0)
(s379 0.0)
(s380 0.0)
(s381 0.0)
(s382 0.0)
(s383 0.0)
(s384 0.0)
(s385 0.0)
(s386 0.0)
(s387 0.0)
(s388 0.0)
(s389 0.0)
(s390 0.0)
(s391 0.0)
(s392 0.0)
(s393 0.0)
(s394 0.0)
(s395 0.0)
(s396 0.0)
(s397 0.0)
(s398 0.0)
(s399 0.0)
(s400 0.0)
(s401 0.0)
(s402 0.0)
(s403 0.0)
(s404 0.0)
(s405 0.0timeout
) org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 414/1092 variables, and 4 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30040 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/414 constraints, ReadFeed: 0/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1200 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/414 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/414 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 3 (OVERLAPS) 678/1092 variables, 414/418 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1092 variables, 74/492 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1092/1092 variables, and 1692 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 31208 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 414/414 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
After SMT, in 68117ms problems are : Problem set: 0 solved, 1200 unsolved
Search for dead transitions found 0 dead transitions in 68139ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 71769 ms. Remains : 414/414 places, 1202/1202 transitions.
[2025-06-01 11:03:03] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
Found an invariant !
This invariant on transitions {222=1, 307=1, 504=1, 674=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 337=1, 534=1, 674=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 52 ms. (steps per millisecond=192 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[5005] Max Struct:[+inf]
[2025-06-01 11:03:04] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:03:04] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[5005] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 3491 ms. (286 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 741 ms. (1347 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[5005] Max Struct:[+inf]
[2025-06-01 11:03:08] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:03:08] [INFO ] Invariant cache hit.
[2025-06-01 11:03:08] [INFO ] [Real]Absence check using 3 positive place invariants in 9 ms returned sat
[2025-06-01 11:03:09] [INFO ] [Real]Absence check using state equation in 335 ms returned sat
[2025-06-01 11:03:09] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 11:03:09] [INFO ] [Real]Added 74 Read/Feed constraints in 66 ms returned sat
[2025-06-01 11:03:09] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 11:03:09] [INFO ] [Nat]Absence check using 3 positive place invariants in 9 ms returned sat
[2025-06-01 11:03:09] [INFO ] [Nat]Absence check using state equation in 386 ms returned sat
[2025-06-01 11:03:09] [INFO ] [Nat]Added 74 Read/Feed constraints in 78 ms returned sat
[2025-06-01 11:03:10] [INFO ] Deduced a trap composed of 74 places in 547 ms of which 6 ms to minimize.
[2025-06-01 11:03:10] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 619 ms
[2025-06-01 11:03:10] [INFO ] Computed and/alt/rep : 333/1251/331 causal constraints (skipped 345 transitions) in 117 ms.
[2025-06-01 11:03:10] [INFO ] Added : 7 causal constraints over 4 iterations in 408 ms. Result :sat
Minimization took 499 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[5005] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[5026] Max Struct:[+inf]
Support contains 1 out of 414 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 49 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 49 ms. Remains : 414/414 places, 1202/1202 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 49 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
[2025-06-01 11:03:22] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:03:22] [INFO ] Invariant cache hit.
[2025-06-01 11:03:23] [INFO ] Implicit Places using invariants in 952 ms returned []
[2025-06-01 11:03:23] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:03:23] [INFO ] Invariant cache hit.
[2025-06-01 11:03:24] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 11:03:26] [INFO ] Implicit Places using invariants and state equation in 2690 ms returned []
Implicit Place search using SMT with State Equation took 3659 ms to find 0 implicit places.
[2025-06-01 11:03:26] [INFO ] Redundant transitions in 35 ms returned []
Running 1200 sub problems to find dead transitions.
[2025-06-01 11:03:26] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:03:26] [INFO ] Invariant cache hit.
[2025-06-01 11:03:26] [INFO ] State equation strengthened by 74 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
[2025-06-01 11:03:52] [INFO ] Deduced a trap composed of 131 places in 451 ms of which 7 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 414/1092 variables, and 4 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30042 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/414 constraints, ReadFeed: 0/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1200 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/414 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/414 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 3 (OVERLAPS) 678/1092 variables, 414/418 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1092 variables, 74/492 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1092/1092 variables, and 1692 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30966 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 414/414 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
After SMT, in 67877ms problems are : Problem set: 0 solved, 1200 unsolved
Search for dead transitions found 0 dead transitions in 67914ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 71668 ms. Remains : 414/414 places, 1202/1202 transitions.
[2025-06-01 11:04:34] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
Found an invariant !
This invariant on transitions {222=1, 307=1, 504=1, 674=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 337=1, 534=1, 674=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 44 ms. (steps per millisecond=227 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[5026] Max Struct:[+inf]
[2025-06-01 11:04:34] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:04:34] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[5026] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 3241 ms. (308 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 742 ms. (1345 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[5026] Max Struct:[+inf]
[2025-06-01 11:04:38] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:04:38] [INFO ] Invariant cache hit.
[2025-06-01 11:04:39] [INFO ] [Real]Absence check using 3 positive place invariants in 12 ms returned sat
[2025-06-01 11:04:39] [INFO ] [Real]Absence check using state equation in 354 ms returned sat
[2025-06-01 11:04:39] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 11:04:39] [INFO ] [Real]Added 74 Read/Feed constraints in 78 ms returned sat
[2025-06-01 11:04:39] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 11:04:39] [INFO ] [Nat]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 11:04:40] [INFO ] [Nat]Absence check using state equation in 348 ms returned sat
[2025-06-01 11:04:40] [INFO ] [Nat]Added 74 Read/Feed constraints in 72 ms returned sat
[2025-06-01 11:04:40] [INFO ] Deduced a trap composed of 74 places in 512 ms of which 6 ms to minimize.
[2025-06-01 11:04:40] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 588 ms
[2025-06-01 11:04:40] [INFO ] Computed and/alt/rep : 333/1251/331 causal constraints (skipped 345 transitions) in 119 ms.
[2025-06-01 11:04:41] [INFO ] Added : 7 causal constraints over 4 iterations in 507 ms. Result :sat
Minimization took 515 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[5026] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[5226] Max Struct:[+inf]
Support contains 1 out of 414 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 80 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 81 ms. Remains : 414/414 places, 1202/1202 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 89 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
[2025-06-01 11:04:55] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:04:55] [INFO ] Invariant cache hit.
[2025-06-01 11:04:56] [INFO ] Implicit Places using invariants in 877 ms returned []
[2025-06-01 11:04:56] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:04:56] [INFO ] Invariant cache hit.
[2025-06-01 11:04:56] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 11:04:58] [INFO ] Implicit Places using invariants and state equation in 2450 ms returned []
Implicit Place search using SMT with State Equation took 3374 ms to find 0 implicit places.
[2025-06-01 11:04:58] [INFO ] Redundant transitions in 20 ms returned []
Running 1200 sub problems to find dead transitions.
[2025-06-01 11:04:58] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:04:58] [INFO ] Invariant cache hit.
[2025-06-01 11:04:58] [INFO ] State equation strengthened by 74 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
[2025-06-01 11:05:23] [INFO ] Deduced a trap composed of 131 places in 420 ms of which 6 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 414/1092 variables, and 4 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30025 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/414 constraints, ReadFeed: 0/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1200 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/414 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/414 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 3 (OVERLAPS) 678/1092 variables, 414/418 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1092 variables, 74/492 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1092/1092 variables, and 1692 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 31278 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 414/414 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
After SMT, in 67638ms problems are : Problem set: 0 solved, 1200 unsolved
Search for dead transitions found 0 dead transitions in 67651ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 71150 ms. Remains : 414/414 places, 1202/1202 transitions.
[2025-06-01 11:06:06] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
Found an invariant !
This invariant on transitions {222=1, 307=1, 504=1, 674=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 337=1, 534=1, 674=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 72 ms. (steps per millisecond=138 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[5226] Max Struct:[+inf]
[2025-06-01 11:06:06] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:06:06] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[5226] Max Struct:[+inf]
RANDOM walk for 1000001 steps (2 resets) in 3575 ms. (279 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 718 ms. (1390 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[5226] Max Struct:[+inf]
[2025-06-01 11:06:11] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:06:11] [INFO ] Invariant cache hit.
[2025-06-01 11:06:11] [INFO ] [Real]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 11:06:11] [INFO ] [Real]Absence check using state equation in 249 ms returned sat
[2025-06-01 11:06:11] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 11:06:11] [INFO ] [Real]Added 74 Read/Feed constraints in 69 ms returned sat
[2025-06-01 11:06:11] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 11:06:11] [INFO ] [Nat]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 11:06:12] [INFO ] [Nat]Absence check using state equation in 376 ms returned sat
[2025-06-01 11:06:12] [INFO ] [Nat]Added 74 Read/Feed constraints in 87 ms returned sat
[2025-06-01 11:06:12] [INFO ] Deduced a trap composed of 74 places in 591 ms of which 7 ms to minimize.
[2025-06-01 11:06:12] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 673 ms
[2025-06-01 11:06:13] [INFO ] Computed and/alt/rep : 333/1251/331 causal constraints (skipped 345 transitions) in 158 ms.
[2025-06-01 11:06:13] [INFO ] Added : 7 causal constraints over 4 iterations in 564 ms. Result :sat
Minimization took 531 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[5226] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[5283] Max Struct:[+inf]
Support contains 1 out of 414 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 54 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 55 ms. Remains : 414/414 places, 1202/1202 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 54 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
[2025-06-01 11:06:25] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:06:25] [INFO ] Invariant cache hit.
[2025-06-01 11:06:26] [INFO ] Implicit Places using invariants in 667 ms returned []
[2025-06-01 11:06:26] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:06:26] [INFO ] Invariant cache hit.
[2025-06-01 11:06:26] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 11:06:28] [INFO ] Implicit Places using invariants and state equation in 2775 ms returned []
Implicit Place search using SMT with State Equation took 3443 ms to find 0 implicit places.
[2025-06-01 11:06:28] [INFO ] Redundant transitions in 21 ms returned []
Running 1200 sub problems to find dead transitions.
[2025-06-01 11:06:28] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:06:28] [INFO ] Invariant cache hit.
[2025-06-01 11:06:28] [INFO ] State equation strengthened by 74 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
[2025-06-01 11:06:54] [INFO ] Deduced a trap composed of 131 places in 282 ms of which 4 ms to minimize.
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 414/1092 variables, and 4 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30034 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/414 constraints, ReadFeed: 0/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1200 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/414 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/414 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 3 (OVERLAPS) 678/1092 variables, 414/418 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1092 variables, 74/492 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1092/1092 variables, and 1692 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 31246 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 414/414 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
After SMT, in 67637ms problems are : Problem set: 0 solved, 1200 unsolved
Search for dead transitions found 0 dead transitions in 67649ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 71178 ms. Remains : 414/414 places, 1202/1202 transitions.
[2025-06-01 11:07:36] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
Found an invariant !
This invariant on transitions {222=1, 307=1, 504=1, 674=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 337=1, 534=1, 674=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 37 ms. (steps per millisecond=270 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[5283] Max Struct:[+inf]
[2025-06-01 11:07:36] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:07:36] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[5283] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 3169 ms. (315 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 928 ms. (1076 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[5283] Max Struct:[+inf]
[2025-06-01 11:07:41] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:07:41] [INFO ] Invariant cache hit.
[2025-06-01 11:07:41] [INFO ] [Real]Absence check using 3 positive place invariants in 9 ms returned sat
[2025-06-01 11:07:41] [INFO ] [Real]Absence check using state equation in 319 ms returned sat
[2025-06-01 11:07:41] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 11:07:41] [INFO ] [Real]Added 74 Read/Feed constraints in 68 ms returned sat
[2025-06-01 11:07:41] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 11:07:41] [INFO ] [Nat]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 11:07:42] [INFO ] [Nat]Absence check using state equation in 343 ms returned sat
[2025-06-01 11:07:42] [INFO ] [Nat]Added 74 Read/Feed constraints in 83 ms returned sat
[2025-06-01 11:07:42] [INFO ] Deduced a trap composed of 74 places in 589 ms of which 7 ms to minimize.
[2025-06-01 11:07:42] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 670 ms
[2025-06-01 11:07:43] [INFO ] Computed and/alt/rep : 333/1251/331 causal constraints (skipped 345 transitions) in 131 ms.
[2025-06-01 11:07:43] [INFO ] Added : 7 causal constraints over 4 iterations in 531 ms. Result :sat
Minimization took 508 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[5283] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[5325] Max Struct:[+inf]
Support contains 1 out of 414 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 75 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 75 ms. Remains : 414/414 places, 1202/1202 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 80 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
[2025-06-01 11:07:55] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:07:55] [INFO ] Invariant cache hit.
[2025-06-01 11:07:56] [INFO ] Implicit Places using invariants in 990 ms returned []
[2025-06-01 11:07:56] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:07:56] [INFO ] Invariant cache hit.
[2025-06-01 11:07:56] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 11:07:58] [INFO ] Implicit Places using invariants and state equation in 2586 ms returned []
Implicit Place search using SMT with State Equation took 3578 ms to find 0 implicit places.
[2025-06-01 11:07:58] [INFO ] Redundant transitions in 24 ms returned []
Running 1200 sub problems to find dead transitions.
[2025-06-01 11:07:58] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:07:58] [INFO ] Invariant cache hit.
[2025-06-01 11:07:58] [INFO ] State equation strengthened by 74 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
[2025-06-01 11:08:22] [INFO ] Deduced a trap composed of 131 places in 467 ms of which 6 ms to minimize.
Error getting values : (error "ParserException while parsing response: ((s0 1.0)
(s1 0.0)
(s2 0.0)
(s3 0.0)
(s4 0.0)
(s5 0.0)
(s6 0.0)
(s7 0.0)
(s8 0.0)
(s9 0.0)
(s10 0.0)
(s11 0.0)
(s12 0.0)
(s13 0.0)
(s14 0.0)
(s15 0.0)
(s16 0.0)
(s17 0.0)
(s18 0.0)
(s19 0.0)
(s20 0.0)
(s21 0.0)
(s22 0.0)
(s23 0.0)
(s24 0.0)
(s25 0.0)
(s26 0.0)
(s27 0.0)
(s28 0.0)
(s29 0.0)
(s30 0.0)
(s31 0.0)
(s32 0.0)
(s33 0.0)
(s34 0.0)
(s35 0.0)
(s36 0.0)
(s37 0.0)
(s38 0.0)
(s39 0.0)
(s40 0.0)
(s41 0.0)
(s42 0.0)
(s43 0.0)
(s44 0.0)
(s45 0.0)
(s46 0.0)
(s47 0.0)
(s48 0.0)
(s49 0.0)
(s50 0.0)
(s51 0.0)
(s52 0.0)
(s53 0.0)
(s54 timeout
0.0 org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 414/1092 variables, and 4 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30035 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/414 constraints, ReadFeed: 0/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1200 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/414 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/414 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 3 (OVERLAPS) 678/1092 variables, 414/418 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1092 variables, 74/492 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1092/1092 variables, and 1692 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 31203 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 414/414 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
After SMT, in 67330ms problems are : Problem set: 0 solved, 1200 unsolved
Search for dead transitions found 0 dead transitions in 67343ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 71033 ms. Remains : 414/414 places, 1202/1202 transitions.
[2025-06-01 11:09:06] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
Found an invariant !
This invariant on transitions {222=1, 307=1, 504=1, 674=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 337=1, 534=1, 674=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 75 ms. (steps per millisecond=133 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[5325] Max Struct:[+inf]
[2025-06-01 11:09:06] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:09:06] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[5325] Max Struct:[+inf]
RANDOM walk for 1000003 steps (2 resets) in 3271 ms. (305 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 700 ms. (1426 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[5325] Max Struct:[+inf]
[2025-06-01 11:09:10] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:09:10] [INFO ] Invariant cache hit.
[2025-06-01 11:09:10] [INFO ] [Real]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 11:09:11] [INFO ] [Real]Absence check using state equation in 384 ms returned sat
[2025-06-01 11:09:11] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 11:09:11] [INFO ] [Real]Added 74 Read/Feed constraints in 67 ms returned sat
[2025-06-01 11:09:11] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 11:09:11] [INFO ] [Nat]Absence check using 3 positive place invariants in 9 ms returned sat
[2025-06-01 11:09:11] [INFO ] [Nat]Absence check using state equation in 369 ms returned sat
[2025-06-01 11:09:11] [INFO ] [Nat]Added 74 Read/Feed constraints in 75 ms returned sat
[2025-06-01 11:09:12] [INFO ] Deduced a trap composed of 74 places in 572 ms of which 7 ms to minimize.
[2025-06-01 11:09:12] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 653 ms
[2025-06-01 11:09:12] [INFO ] Computed and/alt/rep : 333/1251/331 causal constraints (skipped 345 transitions) in 133 ms.
[2025-06-01 11:09:12] [INFO ] Added : 7 causal constraints over 4 iterations in 537 ms. Result :sat
Minimization took 519 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[5325] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[5352] Max Struct:[+inf]
Support contains 1 out of 414 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 50 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 50 ms. Remains : 414/414 places, 1202/1202 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 49 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
[2025-06-01 11:09:26] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:09:26] [INFO ] Invariant cache hit.
[2025-06-01 11:09:27] [INFO ] Implicit Places using invariants in 788 ms returned []
[2025-06-01 11:09:27] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:09:27] [INFO ] Invariant cache hit.
[2025-06-01 11:09:28] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 11:09:30] [INFO ] Implicit Places using invariants and state equation in 2586 ms returned []
Implicit Place search using SMT with State Equation took 3401 ms to find 0 implicit places.
[2025-06-01 11:09:30] [INFO ] Redundant transitions in 34 ms returned []
Running 1200 sub problems to find dead transitions.
[2025-06-01 11:09:30] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:09:30] [INFO ] Invariant cache hit.
[2025-06-01 11:09:30] [INFO ] State equation strengthened by 74 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
[2025-06-01 11:09:57] [INFO ] Deduced a trap composed of 131 places in 475 ms of which 6 ms to minimize.
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 414/1092 variables, and 4 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30036 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/414 constraints, ReadFeed: 0/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1200 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/414 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/414 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 3 (OVERLAPS) 678/1092 variables, 414/418 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1092 variables, 74/492 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1092/1092 variables, and 1692 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 31175 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 414/414 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
After SMT, in 67595ms problems are : Problem set: 0 solved, 1200 unsolved
Search for dead transitions found 0 dead transitions in 67617ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 71111 ms. Remains : 414/414 places, 1202/1202 transitions.
[2025-06-01 11:10:38] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
Found an invariant !
This invariant on transitions {222=1, 307=1, 504=1, 674=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 337=1, 534=1, 674=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 53 ms. (steps per millisecond=188 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[5352] Max Struct:[+inf]
[2025-06-01 11:10:38] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:10:38] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[5352] Max Struct:[+inf]
RANDOM walk for 1000001 steps (2 resets) in 3190 ms. (313 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 733 ms. (1362 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[5352] Max Struct:[+inf]
[2025-06-01 11:10:42] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:10:42] [INFO ] Invariant cache hit.
[2025-06-01 11:10:42] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2025-06-01 11:10:42] [INFO ] [Real]Absence check using state equation in 241 ms returned sat
[2025-06-01 11:10:42] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 11:10:42] [INFO ] [Real]Added 74 Read/Feed constraints in 38 ms returned sat
[2025-06-01 11:10:42] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 11:10:42] [INFO ] [Nat]Absence check using 3 positive place invariants in 9 ms returned sat
[2025-06-01 11:10:43] [INFO ] [Nat]Absence check using state equation in 315 ms returned sat
[2025-06-01 11:10:43] [INFO ] [Nat]Added 74 Read/Feed constraints in 80 ms returned sat
[2025-06-01 11:10:43] [INFO ] Deduced a trap composed of 74 places in 466 ms of which 5 ms to minimize.
[2025-06-01 11:10:43] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 547 ms
[2025-06-01 11:10:43] [INFO ] Computed and/alt/rep : 333/1251/331 causal constraints (skipped 345 transitions) in 129 ms.
[2025-06-01 11:10:44] [INFO ] Added : 7 causal constraints over 4 iterations in 532 ms. Result :sat
Minimization took 550 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[5352] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[5574] Max Struct:[+inf]
Support contains 1 out of 414 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 82 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 83 ms. Remains : 414/414 places, 1202/1202 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 115 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
[2025-06-01 11:10:56] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:10:56] [INFO ] Invariant cache hit.
[2025-06-01 11:10:57] [INFO ] Implicit Places using invariants in 932 ms returned []
[2025-06-01 11:10:57] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:10:57] [INFO ] Invariant cache hit.
[2025-06-01 11:10:57] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 11:10:59] [INFO ] Implicit Places using invariants and state equation in 2073 ms returned []
Implicit Place search using SMT with State Equation took 3008 ms to find 0 implicit places.
[2025-06-01 11:10:59] [INFO ] Redundant transitions in 35 ms returned []
Running 1200 sub problems to find dead transitions.
[2025-06-01 11:10:59] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:10:59] [INFO ] Invariant cache hit.
[2025-06-01 11:10:59] [INFO ] State equation strengthened by 74 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
[2025-06-01 11:11:23] [INFO ] Deduced a trap composed of 131 places in 494 ms of which 6 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 414/1092 variables, and 4 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30042 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/414 constraints, ReadFeed: 0/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1200 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/414 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/414 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 3 (OVERLAPS) 678/1092 variables, 414/418 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1092 variables, 74/492 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1092/1092 variables, and 1692 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30921 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 414/414 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
After SMT, in 67034ms problems are : Problem set: 0 solved, 1200 unsolved
Search for dead transitions found 0 dead transitions in 67055ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 70222 ms. Remains : 414/414 places, 1202/1202 transitions.
[2025-06-01 11:12:06] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
Found an invariant !
This invariant on transitions {222=1, 307=1, 504=1, 674=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 337=1, 534=1, 674=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 54 ms. (steps per millisecond=185 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[5574] Max Struct:[+inf]
[2025-06-01 11:12:07] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:12:07] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[5574] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 3284 ms. (304 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 748 ms. (1335 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[5574] Max Struct:[+inf]
[2025-06-01 11:12:11] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:12:11] [INFO ] Invariant cache hit.
[2025-06-01 11:12:11] [INFO ] [Real]Absence check using 3 positive place invariants in 7 ms returned sat
[2025-06-01 11:12:11] [INFO ] [Real]Absence check using state equation in 263 ms returned sat
[2025-06-01 11:12:11] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 11:12:11] [INFO ] [Real]Added 74 Read/Feed constraints in 50 ms returned sat
[2025-06-01 11:12:11] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 11:12:11] [INFO ] [Nat]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 11:12:11] [INFO ] [Nat]Absence check using state equation in 256 ms returned sat
[2025-06-01 11:12:12] [INFO ] [Nat]Added 74 Read/Feed constraints in 57 ms returned sat
[2025-06-01 11:12:12] [INFO ] Deduced a trap composed of 74 places in 532 ms of which 6 ms to minimize.
[2025-06-01 11:12:12] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 596 ms
[2025-06-01 11:12:12] [INFO ] Computed and/alt/rep : 333/1251/331 causal constraints (skipped 345 transitions) in 117 ms.
[2025-06-01 11:12:13] [INFO ] Added : 7 causal constraints over 4 iterations in 435 ms. Result :sat
Minimization took 457 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[5574] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[5781] Max Struct:[+inf]
Support contains 1 out of 414 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 80 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 80 ms. Remains : 414/414 places, 1202/1202 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 80 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
[2025-06-01 11:12:24] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:12:24] [INFO ] Invariant cache hit.
[2025-06-01 11:12:25] [INFO ] Implicit Places using invariants in 800 ms returned []
[2025-06-01 11:12:25] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:12:25] [INFO ] Invariant cache hit.
[2025-06-01 11:12:26] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 11:12:28] [INFO ] Implicit Places using invariants and state equation in 2712 ms returned []
Implicit Place search using SMT with State Equation took 3536 ms to find 0 implicit places.
[2025-06-01 11:12:28] [INFO ] Redundant transitions in 22 ms returned []
Running 1200 sub problems to find dead transitions.
[2025-06-01 11:12:28] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:12:28] [INFO ] Invariant cache hit.
[2025-06-01 11:12:28] [INFO ] State equation strengthened by 74 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
[2025-06-01 11:12:54] [INFO ] Deduced a trap composed of 131 places in 442 ms of which 6 ms to minimize.
Error getting values : (error "ParserException while parsing response: ((s0 0.0)
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(s307 timeout
0.0 org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 414/1092 variables, and 4 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30037 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/414 constraints, ReadFeed: 0/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1200 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/414 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/414 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 3 (OVERLAPS) 678/1092 variables, 414/418 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1092 variables, 74/492 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1092/1092 variables, and 1692 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30649 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 414/414 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
After SMT, in 66701ms problems are : Problem set: 0 solved, 1200 unsolved
Search for dead transitions found 0 dead transitions in 66715ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 70360 ms. Remains : 414/414 places, 1202/1202 transitions.
[2025-06-01 11:13:35] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
Found an invariant !
This invariant on transitions {222=1, 307=1, 504=1, 674=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 337=1, 534=1, 674=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 35 ms. (steps per millisecond=285 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[5781] Max Struct:[+inf]
[2025-06-01 11:13:35] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:13:35] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[5781] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 3529 ms. (283 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 908 ms. (1100 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[5781] Max Struct:[+inf]
[2025-06-01 11:13:39] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:13:39] [INFO ] Invariant cache hit.
[2025-06-01 11:13:40] [INFO ] [Real]Absence check using 3 positive place invariants in 9 ms returned sat
[2025-06-01 11:13:40] [INFO ] [Real]Absence check using state equation in 348 ms returned sat
[2025-06-01 11:13:40] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 11:13:40] [INFO ] [Real]Added 74 Read/Feed constraints in 61 ms returned sat
[2025-06-01 11:13:40] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 11:13:40] [INFO ] [Nat]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 11:13:40] [INFO ] [Nat]Absence check using state equation in 275 ms returned sat
[2025-06-01 11:13:40] [INFO ] [Nat]Added 74 Read/Feed constraints in 55 ms returned sat
[2025-06-01 11:13:41] [INFO ] Deduced a trap composed of 74 places in 550 ms of which 8 ms to minimize.
[2025-06-01 11:13:41] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 613 ms
[2025-06-01 11:13:41] [INFO ] Computed and/alt/rep : 333/1251/331 causal constraints (skipped 345 transitions) in 128 ms.
[2025-06-01 11:13:42] [INFO ] Added : 7 causal constraints over 4 iterations in 432 ms. Result :sat
Minimization took 377 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[5781] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[5805] Max Struct:[+inf]
Support contains 1 out of 414 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 47 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 48 ms. Remains : 414/414 places, 1202/1202 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 52 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
[2025-06-01 11:13:54] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:13:54] [INFO ] Invariant cache hit.
[2025-06-01 11:13:54] [INFO ] Implicit Places using invariants in 570 ms returned []
[2025-06-01 11:13:54] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:13:54] [INFO ] Invariant cache hit.
[2025-06-01 11:13:54] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 11:13:56] [INFO ] Implicit Places using invariants and state equation in 2056 ms returned []
Implicit Place search using SMT with State Equation took 2630 ms to find 0 implicit places.
[2025-06-01 11:13:56] [INFO ] Redundant transitions in 21 ms returned []
Running 1200 sub problems to find dead transitions.
[2025-06-01 11:13:56] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:13:56] [INFO ] Invariant cache hit.
[2025-06-01 11:13:56] [INFO ] State equation strengthened by 74 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
[2025-06-01 11:14:15] [INFO ] Deduced a trap composed of 131 places in 411 ms of which 6 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/414 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
Error getting values : (error "ParserException while parsing response: ((s0 1.0)
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(s278 timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 414/1092 variables, and 4 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30044 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/414 constraints, ReadFeed: 0/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1200 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/414 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/414 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 3 (OVERLAPS) 678/1092 variables, 414/418 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1092 variables, 74/492 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1092/1092 variables, and 1692 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 31007 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 414/414 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
After SMT, in 66261ms problems are : Problem set: 0 solved, 1200 unsolved
Search for dead transitions found 0 dead transitions in 66274ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 68984 ms. Remains : 414/414 places, 1202/1202 transitions.
[2025-06-01 11:15:02] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
Found an invariant !
This invariant on transitions {222=1, 307=1, 504=1, 674=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 337=1, 534=1, 674=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 42 ms. (steps per millisecond=238 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[5805] Max Struct:[+inf]
[2025-06-01 11:15:03] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:15:03] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[5805] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 3148 ms. (317 steps per ms)
BEST_FIRST walk for 1000000 steps (2 resets) in 709 ms. (1408 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[5805] Max Struct:[+inf]
[2025-06-01 11:15:07] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:15:07] [INFO ] Invariant cache hit.
[2025-06-01 11:15:07] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2025-06-01 11:15:07] [INFO ] [Real]Absence check using state equation in 224 ms returned sat
[2025-06-01 11:15:07] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 11:15:07] [INFO ] [Real]Added 74 Read/Feed constraints in 51 ms returned sat
[2025-06-01 11:15:07] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 11:15:07] [INFO ] [Nat]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 11:15:07] [INFO ] [Nat]Absence check using state equation in 257 ms returned sat
[2025-06-01 11:15:08] [INFO ] [Nat]Added 74 Read/Feed constraints in 46 ms returned sat
[2025-06-01 11:15:08] [INFO ] Deduced a trap composed of 74 places in 454 ms of which 5 ms to minimize.
[2025-06-01 11:15:08] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 536 ms
[2025-06-01 11:15:08] [INFO ] Computed and/alt/rep : 333/1251/331 causal constraints (skipped 345 transitions) in 124 ms.
[2025-06-01 11:15:09] [INFO ] Added : 7 causal constraints over 4 iterations in 515 ms. Result :sat
Minimization took 522 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[5805] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[5858] Max Struct:[+inf]
Support contains 1 out of 414 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 51 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 52 ms. Remains : 414/414 places, 1202/1202 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 46 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
[2025-06-01 11:15:21] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:15:21] [INFO ] Invariant cache hit.
[2025-06-01 11:15:21] [INFO ] Implicit Places using invariants in 500 ms returned []
[2025-06-01 11:15:21] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:15:21] [INFO ] Invariant cache hit.
[2025-06-01 11:15:22] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 11:15:23] [INFO ] Implicit Places using invariants and state equation in 2035 ms returned []
Implicit Place search using SMT with State Equation took 2549 ms to find 0 implicit places.
[2025-06-01 11:15:23] [INFO ] Redundant transitions in 20 ms returned []
Running 1200 sub problems to find dead transitions.
[2025-06-01 11:15:24] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:15:24] [INFO ] Invariant cache hit.
[2025-06-01 11:15:24] [INFO ] State equation strengthened by 74 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
[2025-06-01 11:15:45] [INFO ] Deduced a trap composed of 131 places in 345 ms of which 4 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 414/1092 variables, and 4 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30035 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/414 constraints, ReadFeed: 0/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1200 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/414 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/414 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 3 (OVERLAPS) 678/1092 variables, 414/418 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1092 variables, 74/492 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1092/1092 variables, and 1692 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 31132 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 414/414 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
After SMT, in 66344ms problems are : Problem set: 0 solved, 1200 unsolved
Search for dead transitions found 0 dead transitions in 66356ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 68983 ms. Remains : 414/414 places, 1202/1202 transitions.
[2025-06-01 11:16:30] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
Found an invariant !
This invariant on transitions {222=1, 307=1, 504=1, 674=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 337=1, 534=1, 674=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 35 ms. (steps per millisecond=285 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[5858] Max Struct:[+inf]
[2025-06-01 11:16:30] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:16:30] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[5858] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 3369 ms. (296 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 770 ms. (1297 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[5858] Max Struct:[+inf]
[2025-06-01 11:16:34] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:16:34] [INFO ] Invariant cache hit.
[2025-06-01 11:16:35] [INFO ] [Real]Absence check using 3 positive place invariants in 9 ms returned sat
[2025-06-01 11:16:35] [INFO ] [Real]Absence check using state equation in 318 ms returned sat
[2025-06-01 11:16:35] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 11:16:35] [INFO ] [Real]Added 74 Read/Feed constraints in 60 ms returned sat
[2025-06-01 11:16:35] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 11:16:35] [INFO ] [Nat]Absence check using 3 positive place invariants in 9 ms returned sat
[2025-06-01 11:16:35] [INFO ] [Nat]Absence check using state equation in 323 ms returned sat
[2025-06-01 11:16:36] [INFO ] [Nat]Added 74 Read/Feed constraints in 66 ms returned sat
[2025-06-01 11:16:36] [INFO ] Deduced a trap composed of 74 places in 491 ms of which 6 ms to minimize.
[2025-06-01 11:16:36] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 557 ms
[2025-06-01 11:16:36] [INFO ] Computed and/alt/rep : 333/1251/331 causal constraints (skipped 345 transitions) in 101 ms.
[2025-06-01 11:16:36] [INFO ] Added : 7 causal constraints over 4 iterations in 399 ms. Result :sat
Minimization took 369 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[5858] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[5875] Max Struct:[+inf]
Support contains 1 out of 414 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 52 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 53 ms. Remains : 414/414 places, 1202/1202 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 46 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
[2025-06-01 11:16:50] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:16:50] [INFO ] Invariant cache hit.
[2025-06-01 11:16:50] [INFO ] Implicit Places using invariants in 560 ms returned []
[2025-06-01 11:16:50] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:16:50] [INFO ] Invariant cache hit.
[2025-06-01 11:16:51] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 11:16:53] [INFO ] Implicit Places using invariants and state equation in 2293 ms returned []
Implicit Place search using SMT with State Equation took 2860 ms to find 0 implicit places.
[2025-06-01 11:16:53] [INFO ] Redundant transitions in 34 ms returned []
Running 1200 sub problems to find dead transitions.
[2025-06-01 11:16:53] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:16:53] [INFO ] Invariant cache hit.
[2025-06-01 11:16:53] [INFO ] State equation strengthened by 74 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
[2025-06-01 11:17:19] [INFO ] Deduced a trap composed of 131 places in 417 ms of which 6 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 414/1092 variables, and 4 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30036 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/414 constraints, ReadFeed: 0/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1200 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/414 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/414 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 3 (OVERLAPS) 678/1092 variables, 414/418 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1092 variables, 74/492 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1092/1092 variables, and 1692 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 31075 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 414/414 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
After SMT, in 67297ms problems are : Problem set: 0 solved, 1200 unsolved
Search for dead transitions found 0 dead transitions in 67318ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 70269 ms. Remains : 414/414 places, 1202/1202 transitions.
[2025-06-01 11:18:00] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
Found an invariant !
This invariant on transitions {222=1, 307=1, 504=1, 674=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 337=1, 534=1, 674=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 43 ms. (steps per millisecond=232 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[5875] Max Struct:[+inf]
[2025-06-01 11:18:00] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:18:00] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[5875] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 3160 ms. (316 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 737 ms. (1355 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[5875] Max Struct:[+inf]
[2025-06-01 11:18:04] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:18:04] [INFO ] Invariant cache hit.
[2025-06-01 11:18:04] [INFO ] [Real]Absence check using 3 positive place invariants in 13 ms returned sat
[2025-06-01 11:18:05] [INFO ] [Real]Absence check using state equation in 211 ms returned sat
[2025-06-01 11:18:05] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 11:18:05] [INFO ] [Real]Added 74 Read/Feed constraints in 46 ms returned sat
[2025-06-01 11:18:05] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 11:18:05] [INFO ] [Nat]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 11:18:05] [INFO ] [Nat]Absence check using state equation in 223 ms returned sat
[2025-06-01 11:18:05] [INFO ] [Nat]Added 74 Read/Feed constraints in 61 ms returned sat
[2025-06-01 11:18:06] [INFO ] Deduced a trap composed of 74 places in 541 ms of which 7 ms to minimize.
[2025-06-01 11:18:06] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 625 ms
[2025-06-01 11:18:06] [INFO ] Computed and/alt/rep : 333/1251/331 causal constraints (skipped 345 transitions) in 131 ms.
[2025-06-01 11:18:06] [INFO ] Added : 7 causal constraints over 4 iterations in 525 ms. Result :sat
Minimization took 505 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[5875] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[5929] Max Struct:[+inf]
Support contains 1 out of 414 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 52 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 53 ms. Remains : 414/414 places, 1202/1202 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 77 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
[2025-06-01 11:18:20] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:18:20] [INFO ] Invariant cache hit.
[2025-06-01 11:18:20] [INFO ] Implicit Places using invariants in 534 ms returned []
[2025-06-01 11:18:20] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:18:20] [INFO ] Invariant cache hit.
[2025-06-01 11:18:20] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 11:18:22] [INFO ] Implicit Places using invariants and state equation in 2154 ms returned []
Implicit Place search using SMT with State Equation took 2701 ms to find 0 implicit places.
[2025-06-01 11:18:22] [INFO ] Redundant transitions in 21 ms returned []
Running 1200 sub problems to find dead transitions.
[2025-06-01 11:18:22] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:18:22] [INFO ] Invariant cache hit.
[2025-06-01 11:18:22] [INFO ] State equation strengthened by 74 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
[2025-06-01 11:18:46] [INFO ] Deduced a trap composed of 131 places in 254 ms of which 4 ms to minimize.
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 414/1092 variables, and 4 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30024 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/414 constraints, ReadFeed: 0/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1200 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/414 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/414 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 3 (OVERLAPS) 678/1092 variables, 414/418 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1092 variables, 74/492 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1092/1092 variables, and 1692 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30963 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 414/414 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints]
After SMT, in 66979ms problems are : Problem set: 0 solved, 1200 unsolved
Search for dead transitions found 0 dead transitions in 66991ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 69811 ms. Remains : 414/414 places, 1202/1202 transitions.
[2025-06-01 11:19:29] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
Found an invariant !
This invariant on transitions {222=1, 307=1, 504=1, 674=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 337=1, 534=1, 674=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 51 ms. (steps per millisecond=196 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[5929] Max Struct:[+inf]
[2025-06-01 11:19:30] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:19:30] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[5929] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 3370 ms. (296 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 883 ms. (1131 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[5929] Max Struct:[+inf]
[2025-06-01 11:19:34] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:19:34] [INFO ] Invariant cache hit.
[2025-06-01 11:19:34] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2025-06-01 11:19:34] [INFO ] [Real]Absence check using state equation in 220 ms returned sat
[2025-06-01 11:19:34] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 11:19:34] [INFO ] [Real]Added 74 Read/Feed constraints in 41 ms returned sat
[2025-06-01 11:19:34] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 11:19:35] [INFO ] [Nat]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 11:19:35] [INFO ] [Nat]Absence check using state equation in 350 ms returned sat
[2025-06-01 11:19:35] [INFO ] [Nat]Added 74 Read/Feed constraints in 69 ms returned sat
[2025-06-01 11:19:36] [INFO ] Deduced a trap composed of 74 places in 509 ms of which 6 ms to minimize.
[2025-06-01 11:19:36] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 582 ms
[2025-06-01 11:19:36] [INFO ] Computed and/alt/rep : 333/1251/331 causal constraints (skipped 345 transitions) in 111 ms.
[2025-06-01 11:19:36] [INFO ] Added : 7 causal constraints over 4 iterations in 472 ms. Result :sat
Minimization took 499 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[5929] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[5943] Max Struct:[+inf]
Support contains 1 out of 414 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 81 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 81 ms. Remains : 414/414 places, 1202/1202 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 80 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
[2025-06-01 11:19:51] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:19:51] [INFO ] Invariant cache hit.
[2025-06-01 11:19:52] [INFO ] Implicit Places using invariants in 829 ms returned []
[2025-06-01 11:19:52] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:19:52] [INFO ] Invariant cache hit.
[2025-06-01 11:19:53] [INFO ] State equation strengthened by 74 read => feed constraints.
[2025-06-01 11:19:55] [INFO ] Implicit Places using invariants and state equation in 2953 ms returned []
Implicit Place search using SMT with State Equation took 3796 ms to find 0 implicit places.
[2025-06-01 11:19:55] [INFO ] Redundant transitions in 21 ms returned []
Running 1200 sub problems to find dead transitions.
[2025-06-01 11:19:55] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2025-06-01 11:19:55] [INFO ] Invariant cache hit.
[2025-06-01 11:19:55] [INFO ] State equation strengthened by 74 read => feed constraints.
BK_TIME_CONFINEMENT_REACHED
--------------------
content from stderr:
+ export BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ UpperBounds = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution UpperBounds -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
+ export PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ export LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
+ LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202405141337.jar
+ VERSION=202405141337
+ echo 'Running Version 202405141337'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination UpperBounds -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
Sequence of Actions to be Executed by the VM
This is useful if one wants to reexecute the tool in the VM from the submitted image disk.
set -x
# this is for BenchKit: configuration of major elements for the test
export BK_INPUT="FunctionPointer-PT-c002"
export BK_EXAMINATION="UpperBounds"
export BK_TOOL="gold2024"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"
# this is specific to your benchmark or test
export BIN_DIR="$HOME/BenchKit/bin"
# remove the execution directoty if it exists (to avoid increse of .vmdk images)
if [ -d execution ] ; then
rm -rf execution
fi
# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-5832"
echo " Executing tool gold2024"
echo " Input is FunctionPointer-PT-c002, examination is UpperBounds"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r111-smll-174867015800015"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/FunctionPointer-PT-c002.tgz
mv FunctionPointer-PT-c002 execution
cd execution
if [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "UpperBounds" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] || [ "UpperBounds" = "StateSpace" ]; then
rm -f GenericPropertiesVerdict.xml
fi
pwd
ls -lh
echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "UpperBounds" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "UpperBounds" != "StateSpace" ] ; then
echo "The expected result is a vector of booleans"
echo BOOL_VECTOR
else
echo "no data necessary for post analysis"
fi
echo
if [ -f "UpperBounds.xml" ] ; then # for cunf (txt files deleted;-)
echo echo "here is the order used to build the result vector(from xml file)"
for x in $(grep '
echo "FORMULA_NAME $x"
done
elif [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] ; then
echo "FORMULA_NAME UpperBounds"
fi
echo
echo "=== Now, execution of the tool begins"
echo
echo -n "BK_START "
date -u +%s%3N
echo
timeout -s 9 $BK_TIME_CONFINEMENT bash -c "/home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n \"BK_STOP \" ; date -u +%s%3N"
if [ $? -eq 137 ] ; then
echo
echo "BK_TIME_CONFINEMENT_REACHED"
fi
echo
echo "--------------------"
echo "content from stderr:"
echo
cat STDERR ;