Execution Chart

We display below the execution chart for this examination (boot time has been removed).

Trace from the execution

Formatting '/data/fkordon/mcc2024-input.r179-tall-171640601200285.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2024-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 2-5568
Executing tool greatspnxred
Input is FunctionPointer-PT-c004, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r179-tall-171640601200285
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 4.6M
-rw-r--r-- 1 mcc users 5.6K May 14 13:22 CTLCardinality.txt
-rw-r--r-- 1 mcc users 53K May 14 13:22 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.6K May 14 13:22 CTLFireability.txt
-rw-r--r-- 1 mcc users 62K May 14 13:22 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.9K May 19 07:09 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K May 19 15:55 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K May 19 07:18 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K May 19 18:24 LTLFireability.xml
-rw-r--r-- 1 mcc users 12K May 14 13:22 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 119K May 14 13:22 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 11K May 14 13:22 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 98K May 14 13:22 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K May 19 07:12 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K May 19 15:27 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 18 16:42 equiv_col
-rw-r--r-- 1 mcc users 5 May 18 16:42 instance
-rw-r--r-- 1 mcc users 6 May 18 16:42 iscolored
-rw-r--r-- 1 mcc users 4.2M May 18 16:42 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

here is the order used to build the result vector(from text file)
FORMULA_NAME FunctionPointer-PT-c004-UpperBounds-00
FORMULA_NAME FunctionPointer-PT-c004-UpperBounds-01
FORMULA_NAME FunctionPointer-PT-c004-UpperBounds-02
FORMULA_NAME FunctionPointer-PT-c004-UpperBounds-03
FORMULA_NAME FunctionPointer-PT-c004-UpperBounds-04
FORMULA_NAME FunctionPointer-PT-c004-UpperBounds-05
FORMULA_NAME FunctionPointer-PT-c004-UpperBounds-06
FORMULA_NAME FunctionPointer-PT-c004-UpperBounds-07
FORMULA_NAME FunctionPointer-PT-c004-UpperBounds-08
FORMULA_NAME FunctionPointer-PT-c004-UpperBounds-09
FORMULA_NAME FunctionPointer-PT-c004-UpperBounds-10
FORMULA_NAME FunctionPointer-PT-c004-UpperBounds-11
FORMULA_NAME FunctionPointer-PT-c004-UpperBounds-12
FORMULA_NAME FunctionPointer-PT-c004-UpperBounds-13
FORMULA_NAME FunctionPointer-PT-c004-UpperBounds-14
FORMULA_NAME FunctionPointer-PT-c004-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1716437121023

Invoking MCC driver with
BK_TOOL=greatspnxred
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=FunctionPointer-PT-c004
BK_MEMORY_CONFINEMENT=16384
Applying reductions before tool greatspn
Invoking reducer
Running Version 202405141337
[2024-05-23 04:05:22] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, UpperBounds, -timeout, 360, -rebuildPNML]
[2024-05-23 04:05:22] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-05-23 04:05:22] [INFO ] Load time of PNML (sax parser for PT used): 402 ms
[2024-05-23 04:05:22] [INFO ] Transformed 2826 places.
[2024-05-23 04:05:22] [INFO ] Transformed 8960 transitions.
[2024-05-23 04:05:22] [INFO ] Parsed PT model containing 2826 places and 8960 transitions and 36096 arcs in 561 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 8 ms.
Deduced a syphon composed of 1198 places in 42 ms
Reduce places removed 1198 places and 2998 transitions.
FORMULA FunctionPointer-PT-c004-UpperBounds-00 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c004-UpperBounds-02 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c004-UpperBounds-04 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c004-UpperBounds-07 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c004-UpperBounds-08 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c004-UpperBounds-09 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c004-UpperBounds-13 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c004-UpperBounds-14 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
Current structural bounds on expressions (Initially) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[+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] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 04:05:22] [INFO ] Flow matrix only has 3540 transitions (discarded 2422 similar events)
// Phase 1: matrix 3540 rows 1628 cols
[2024-05-23 04:05:22] [INFO ] Computed 4 invariants in 92 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, 4]
RANDOM walk for 10000 steps (2 resets) in 268 ms. (37 steps per ms)
FORMULA FunctionPointer-PT-c004-UpperBounds-15 4 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 70007 steps (14 resets) in 185 ms. (376 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 3, 6, 4, 1, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 04:05:23] [INFO ] Flow matrix only has 3540 transitions (discarded 2422 similar events)
[2024-05-23 04:05:23] [INFO ] Invariant cache hit.
[2024-05-23 04:05:23] [INFO ] [Real]Absence check using 3 positive place invariants in 17 ms returned sat
[2024-05-23 04:05:23] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2024-05-23 04:05:24] [INFO ] [Real]Absence check using state equation in 787 ms returned sat
[2024-05-23 04:05:24] [INFO ] State equation strengthened by 479 read => feed constraints.
[2024-05-23 04:05:25] [INFO ] [Real]Added 479 Read/Feed constraints in 160 ms returned sat
[2024-05-23 04:05:25] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:05:25] [INFO ] [Nat]Absence check using 3 positive place invariants in 15 ms returned sat
[2024-05-23 04:05:25] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2024-05-23 04:05:26] [INFO ] [Nat]Absence check using state equation in 765 ms returned sat
[2024-05-23 04:05:26] [INFO ] [Nat]Added 479 Read/Feed constraints in 174 ms returned sat
[2024-05-23 04:05:27] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 743 ms.
[2024-05-23 04:05:27] [INFO ] Added : 2 causal constraints over 1 iterations in 1149 ms. Result :sat
Minimization took 586 ms.
[2024-05-23 04:05:28] [INFO ] [Real]Absence check using 3 positive place invariants in 14 ms returned sat
[2024-05-23 04:05:28] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2024-05-23 04:05:29] [INFO ] [Real]Absence check using state equation in 713 ms returned sat
[2024-05-23 04:05:29] [INFO ] [Real]Added 479 Read/Feed constraints in 112 ms returned sat
[2024-05-23 04:05:29] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:05:29] [INFO ] [Nat]Absence check using 3 positive place invariants in 15 ms returned sat
[2024-05-23 04:05:29] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2024-05-23 04:05:30] [INFO ] [Nat]Absence check using state equation in 733 ms returned sat
[2024-05-23 04:05:30] [INFO ] [Nat]Added 479 Read/Feed constraints in 100 ms returned sat
[2024-05-23 04:05:30] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 493 ms.
[2024-05-23 04:05:32] [INFO ] Deduced a trap composed of 142 places in 1305 ms of which 91 ms to minimize.
[2024-05-23 04:05:32] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 1566 ms
[2024-05-23 04:05:32] [INFO ] Added : 2 causal constraints over 1 iterations in 2516 ms. Result :sat
Minimization took 577 ms.
[2024-05-23 04:05:33] [INFO ] [Real]Absence check using 3 positive place invariants in 14 ms returned sat
[2024-05-23 04:05:33] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 2 ms returned sat
[2024-05-23 04:05:34] [INFO ] [Real]Absence check using state equation in 713 ms returned sat
[2024-05-23 04:05:34] [INFO ] [Real]Added 479 Read/Feed constraints in 124 ms returned sat
[2024-05-23 04:05:34] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:05:34] [INFO ] [Nat]Absence check using 3 positive place invariants in 15 ms returned sat
[2024-05-23 04:05:34] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2024-05-23 04:05:35] [INFO ] [Nat]Absence check using state equation in 756 ms returned sat
[2024-05-23 04:05:35] [INFO ] [Nat]Added 479 Read/Feed constraints in 139 ms returned sat
[2024-05-23 04:05:37] [INFO ] Deduced a trap composed of 164 places in 1207 ms of which 11 ms to minimize.
[2024-05-23 04:05:37] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 1385 ms
[2024-05-23 04:05:37] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 445 ms.
[2024-05-23 04:05:38] [INFO ] Added : 2 causal constraints over 1 iterations in 776 ms. Result :sat
Minimization took 580 ms.
[2024-05-23 04:05:38] [INFO ] [Real]Absence check using 3 positive place invariants in 14 ms returned sat
[2024-05-23 04:05:38] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2024-05-23 04:05:39] [INFO ] [Real]Absence check using state equation in 752 ms returned sat
[2024-05-23 04:05:39] [INFO ] [Real]Added 479 Read/Feed constraints in 111 ms returned sat
[2024-05-23 04:05:39] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:05:39] [INFO ] [Nat]Absence check using 3 positive place invariants in 15 ms returned sat
[2024-05-23 04:05:39] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2024-05-23 04:05:40] [INFO ] [Nat]Absence check using state equation in 794 ms returned sat
[2024-05-23 04:05:40] [INFO ] [Nat]Added 479 Read/Feed constraints in 138 ms returned sat
[2024-05-23 04:05:41] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 495 ms.
[2024-05-23 04:05:41] [INFO ] Added : 2 causal constraints over 1 iterations in 846 ms. Result :sat
Minimization took 582 ms.
[2024-05-23 04:05:42] [INFO ] [Real]Absence check using 3 positive place invariants in 14 ms returned sat
[2024-05-23 04:05:42] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2024-05-23 04:05:43] [INFO ] [Real]Absence check using state equation in 768 ms returned sat
[2024-05-23 04:05:43] [INFO ] [Real]Added 479 Read/Feed constraints in 126 ms returned sat
[2024-05-23 04:05:43] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:05:43] [INFO ] [Nat]Absence check using 3 positive place invariants in 24 ms returned sat
[2024-05-23 04:05:43] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2024-05-23 04:05:44] [INFO ] [Nat]Absence check using state equation in 736 ms returned sat
[2024-05-23 04:05:44] [INFO ] [Nat]Added 479 Read/Feed constraints in 173 ms returned sat
[2024-05-23 04:05:46] [INFO ] Deduced a trap composed of 134 places in 1156 ms of which 11 ms to minimize.
[2024-05-23 04:05:47] [INFO ] Deduced a trap composed of 133 places in 1182 ms of which 11 ms to minimize.
[2024-05-23 04:05:48] [INFO ] Deduced a trap composed of 147 places in 1182 ms of which 12 ms to minimize.
[2024-05-23 04:05:49] [INFO ] Deduced a trap composed of 135 places in 985 ms of which 10 ms to minimize.
[2024-05-23 04:05:49] [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 4
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)
[2024-05-23 04:05:49] [INFO ] [Real]Absence check using 3 positive place invariants in 14 ms returned sat
[2024-05-23 04:05:49] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2024-05-23 04:05:50] [INFO ] [Real]Absence check using state equation in 750 ms returned sat
[2024-05-23 04:05:50] [INFO ] [Real]Added 479 Read/Feed constraints in 141 ms returned sat
[2024-05-23 04:05:50] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:05:51] [INFO ] [Nat]Absence check using 3 positive place invariants in 14 ms returned sat
[2024-05-23 04:05:51] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2024-05-23 04:05:51] [INFO ] [Nat]Absence check using state equation in 744 ms returned sat
[2024-05-23 04:05:52] [INFO ] [Nat]Added 479 Read/Feed constraints in 120 ms returned sat
[2024-05-23 04:05:52] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 425 ms.
[2024-05-23 04:05:52] [INFO ] Added : 2 causal constraints over 1 iterations in 755 ms. Result :sat
Minimization took 580 ms.
[2024-05-23 04:05:53] [INFO ] [Real]Absence check using 3 positive place invariants in 14 ms returned sat
[2024-05-23 04:05:53] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 5 ms returned sat
[2024-05-23 04:05:54] [INFO ] [Real]Absence check using state equation in 756 ms returned sat
[2024-05-23 04:05:54] [INFO ] [Real]Added 479 Read/Feed constraints in 133 ms returned sat
[2024-05-23 04:05:54] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:05:54] [INFO ] [Nat]Absence check using 3 positive place invariants in 15 ms returned sat
[2024-05-23 04:05:54] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2024-05-23 04:05:55] [INFO ] [Nat]Absence check using state equation in 735 ms returned sat
[2024-05-23 04:05:55] [INFO ] [Nat]Added 479 Read/Feed constraints in 122 ms returned sat
[2024-05-23 04:05:56] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 425 ms.
[2024-05-23 04:05:57] [INFO ] Deduced a trap composed of 142 places in 1170 ms of which 11 ms to minimize.
[2024-05-23 04:05:59] [INFO ] Deduced a trap composed of 136 places in 1209 ms of which 12 ms to minimize.
[2024-05-23 04:06:00] [INFO ] Deduced a trap composed of 133 places in 1121 ms of which 12 ms to minimize.
[2024-05-23 04:06:00] [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 6
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.refineWithCausalOrder(DeadlockTester.java:1128)
at fr.lip6.move.gal.structural.smt.DeadlockTester.verifyPossible(DeadlockTester.java:875)
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, 3, 6, 4, 1, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0, 3, 6, 4, 1, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 7 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 1423 are kept as prefixes of interest. Removing 205 places using SCC suffix rule.19 ms
Discarding 205 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 1423 transition count 5583
Discarding 300 places :
Symmetric choice reduction at 1 with 300 rule applications. Total rules 680 place count 1123 transition count 3301
Iterating global reduction 1 with 300 rules applied. Total rules applied 980 place count 1123 transition count 3301
Ensure Unique test removed 362 transitions
Reduce isomorphic transitions removed 362 transitions.
Iterating post reduction 1 with 362 rules applied. Total rules applied 1342 place count 1123 transition count 2939
Discarding 155 places :
Symmetric choice reduction at 2 with 155 rule applications. Total rules 1497 place count 968 transition count 2629
Iterating global reduction 2 with 155 rules applied. Total rules applied 1652 place count 968 transition count 2629
Ensure Unique test removed 68 transitions
Reduce isomorphic transitions removed 68 transitions.
Iterating post reduction 2 with 68 rules applied. Total rules applied 1720 place count 968 transition count 2561
Discarding 13 places :
Symmetric choice reduction at 3 with 13 rule applications. Total rules 1733 place count 955 transition count 2535
Iterating global reduction 3 with 13 rules applied. Total rules applied 1746 place count 955 transition count 2535
Discarding 13 places :
Symmetric choice reduction at 3 with 13 rule applications. Total rules 1759 place count 942 transition count 2509
Iterating global reduction 3 with 13 rules applied. Total rules applied 1772 place count 942 transition count 2509
Discarding 13 places :
Symmetric choice reduction at 3 with 13 rule applications. Total rules 1785 place count 929 transition count 2483
Iterating global reduction 3 with 13 rules applied. Total rules applied 1798 place count 929 transition count 2483
Discarding 13 places :
Symmetric choice reduction at 3 with 13 rule applications. Total rules 1811 place count 916 transition count 2457
Iterating global reduction 3 with 13 rules applied. Total rules applied 1824 place count 916 transition count 2457
Discarding 13 places :
Symmetric choice reduction at 3 with 13 rule applications. Total rules 1837 place count 903 transition count 2431
Iterating global reduction 3 with 13 rules applied. Total rules applied 1850 place count 903 transition count 2431
Discarding 13 places :
Symmetric choice reduction at 3 with 13 rule applications. Total rules 1863 place count 890 transition count 2405
Iterating global reduction 3 with 13 rules applied. Total rules applied 1876 place count 890 transition count 2405
Discarding 13 places :
Symmetric choice reduction at 3 with 13 rule applications. Total rules 1889 place count 877 transition count 2379
Iterating global reduction 3 with 13 rules applied. Total rules applied 1902 place count 877 transition count 2379
Discarding 52 places :
Symmetric choice reduction at 3 with 52 rule applications. Total rules 1954 place count 825 transition count 2185
Iterating global reduction 3 with 52 rules applied. Total rules applied 2006 place count 825 transition count 2185
Discarding 57 places :
Symmetric choice reduction at 3 with 57 rule applications. Total rules 2063 place count 768 transition count 1957
Iterating global reduction 3 with 57 rules applied. Total rules applied 2120 place count 768 transition count 1957
Discarding 57 places :
Symmetric choice reduction at 3 with 57 rule applications. Total rules 2177 place count 711 transition count 1815
Iterating global reduction 3 with 57 rules applied. Total rules applied 2234 place count 711 transition count 1815
Discarding 57 places :
Symmetric choice reduction at 3 with 57 rule applications. Total rules 2291 place count 654 transition count 1701
Iterating global reduction 3 with 57 rules applied. Total rules applied 2348 place count 654 transition count 1701
Discarding 57 places :
Symmetric choice reduction at 3 with 57 rule applications. Total rules 2405 place count 597 transition count 1587
Iterating global reduction 3 with 57 rules applied. Total rules applied 2462 place count 597 transition count 1587
Discarding 57 places :
Symmetric choice reduction at 3 with 57 rule applications. Total rules 2519 place count 540 transition count 1473
Iterating global reduction 3 with 57 rules applied. Total rules applied 2576 place count 540 transition count 1473
Discarding 57 places :
Symmetric choice reduction at 3 with 57 rule applications. Total rules 2633 place count 483 transition count 1359
Iterating global reduction 3 with 57 rules applied. Total rules applied 2690 place count 483 transition count 1359
Discarding 14 places :
Symmetric choice reduction at 3 with 14 rule applications. Total rules 2704 place count 469 transition count 1331
Iterating global reduction 3 with 14 rules applied. Total rules applied 2718 place count 469 transition count 1331
Drop transitions (Redundant composition of simpler transitions.) removed 14 transitions
Redundant transition composition rules discarded 14 transitions
Iterating global reduction 3 with 14 rules applied. Total rules applied 2732 place count 469 transition count 1317
Applied a total of 2732 rules in 1543 ms. Remains 469 /1628 variables (removed 1159) and now considering 1317/5962 (removed 4645) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1557 ms. Remains : 469/1628 places, 1317/5962 transitions.
[2024-05-23 04:06:01] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
Found an invariant !
This invariant on transitions {224=1, 350=1, 684=1, 755=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 3 ms.
This minimized invariant on transitions {248=1, 374=1, 708=1, 759=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 112 ms. (steps per millisecond=89 ) properties (out of 7) seen :[3, 0, 0, 0, 0, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[3, 0, 3, 6, 4, 1, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 04:06:02] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
// Phase 1: matrix 763 rows 469 cols
[2024-05-23 04:06:02] [INFO ] Computed 3 invariants in 8 ms
Current structural bounds on expressions (after invariants) : Max Seen:[3, 0, 3, 6, 4, 1, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 2577 ms. (387 steps per ms)
BEST_FIRST walk for 7000005 steps (14 resets) in 4394 ms. (1592 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[194, 4, 6, 7239, 4, 390, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 04:06:09] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
[2024-05-23 04:06:09] [INFO ] Invariant cache hit.
[2024-05-23 04:06:09] [INFO ] [Real]Absence check using 3 positive place invariants in 6 ms returned sat
[2024-05-23 04:06:09] [INFO ] [Real]Absence check using state equation in 156 ms returned sat
[2024-05-23 04:06:09] [INFO ] State equation strengthened by 95 read => feed constraints.
[2024-05-23 04:06:09] [INFO ] [Real]Added 95 Read/Feed constraints in 55 ms returned sat
[2024-05-23 04:06:09] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:06:09] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:06:09] [INFO ] [Nat]Absence check using state equation in 148 ms returned sat
[2024-05-23 04:06:10] [INFO ] [Nat]Added 95 Read/Feed constraints in 29 ms returned sat
[2024-05-23 04:06:10] [INFO ] Deduced a trap composed of 75 places in 224 ms of which 3 ms to minimize.
[2024-05-23 04:06:10] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 277 ms
[2024-05-23 04:06:10] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 75 ms.
[2024-05-23 04:06:10] [INFO ] Added : 2 causal constraints over 1 iterations in 175 ms. Result :sat
Minimization took 283 ms.
[2024-05-23 04:06:10] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:06:11] [INFO ] [Real]Absence check using state equation in 166 ms returned sat
[2024-05-23 04:06:11] [INFO ] [Real]Added 95 Read/Feed constraints in 46 ms returned sat
[2024-05-23 04:06:11] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:06:11] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:06:11] [INFO ] [Nat]Absence check using state equation in 157 ms returned sat
[2024-05-23 04:06:11] [INFO ] [Nat]Added 95 Read/Feed constraints in 31 ms returned sat
[2024-05-23 04:06:11] [INFO ] Deduced a trap composed of 75 places in 219 ms of which 3 ms to minimize.
[2024-05-23 04:06:11] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 274 ms
[2024-05-23 04:06:11] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 67 ms.
[2024-05-23 04:06:11] [INFO ] Added : 2 causal constraints over 1 iterations in 162 ms. Result :sat
Minimization took 313 ms.
[2024-05-23 04:06:12] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:06:12] [INFO ] [Real]Absence check using state equation in 158 ms returned sat
[2024-05-23 04:06:12] [INFO ] [Real]Added 95 Read/Feed constraints in 37 ms returned sat
[2024-05-23 04:06:12] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:06:12] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:06:12] [INFO ] [Nat]Absence check using state equation in 161 ms returned sat
[2024-05-23 04:06:12] [INFO ] [Nat]Added 95 Read/Feed constraints in 35 ms returned sat
[2024-05-23 04:06:12] [INFO ] Deduced a trap composed of 100 places in 223 ms of which 4 ms to minimize.
[2024-05-23 04:06:13] [INFO ] Deduced a trap composed of 95 places in 199 ms of which 3 ms to minimize.
[2024-05-23 04:06:13] [INFO ] Deduced a trap composed of 83 places in 212 ms of which 3 ms to minimize.
[2024-05-23 04:06:13] [INFO ] Deduced a trap composed of 81 places in 208 ms of which 4 ms to minimize.
[2024-05-23 04:06:13] [INFO ] Deduced a trap composed of 78 places in 204 ms of which 3 ms to minimize.
[2024-05-23 04:06:14] [INFO ] Deduced a trap composed of 76 places in 194 ms of which 3 ms to minimize.
[2024-05-23 04:06:14] [INFO ] Deduced a trap composed of 75 places in 193 ms of which 3 ms to minimize.
[2024-05-23 04:06:14] [INFO ] Trap strengthening (SAT) tested/added 8/7 trap constraints in 1638 ms
[2024-05-23 04:06:14] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 71 ms.
[2024-05-23 04:06:14] [INFO ] Added : 2 causal constraints over 1 iterations in 164 ms. Result :sat
Minimization took 298 ms.
[2024-05-23 04:06:14] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:06:15] [INFO ] [Real]Absence check using state equation in 162 ms returned sat
[2024-05-23 04:06:15] [INFO ] [Real]Added 95 Read/Feed constraints in 45 ms returned sat
[2024-05-23 04:06:15] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:06:15] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:06:15] [INFO ] [Nat]Absence check using state equation in 163 ms returned sat
[2024-05-23 04:06:15] [INFO ] [Nat]Added 95 Read/Feed constraints in 40 ms returned sat
[2024-05-23 04:06:15] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 78 ms.
[2024-05-23 04:06:15] [INFO ] Added : 4 causal constraints over 1 iterations in 178 ms. Result :sat
Minimization took 275 ms.
[2024-05-23 04:06:16] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:06:16] [INFO ] [Real]Absence check using state equation in 163 ms returned sat
[2024-05-23 04:06:16] [INFO ] [Real]Added 95 Read/Feed constraints in 31 ms returned sat
[2024-05-23 04:06:16] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:06:16] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:06:16] [INFO ] [Nat]Absence check using state equation in 152 ms returned sat
[2024-05-23 04:06:16] [INFO ] [Nat]Added 95 Read/Feed constraints in 43 ms returned sat
[2024-05-23 04:06:16] [INFO ] Deduced a trap composed of 100 places in 209 ms of which 3 ms to minimize.
[2024-05-23 04:06:17] [INFO ] Deduced a trap composed of 93 places in 201 ms of which 4 ms to minimize.
[2024-05-23 04:06:17] [INFO ] Deduced a trap composed of 83 places in 211 ms of which 3 ms to minimize.
[2024-05-23 04:06:17] [INFO ] Deduced a trap composed of 78 places in 220 ms of which 3 ms to minimize.
[2024-05-23 04:06:17] [INFO ] Deduced a trap composed of 76 places in 211 ms of which 3 ms to minimize.
[2024-05-23 04:06:17] [INFO ] Deduced a trap composed of 82 places in 221 ms of which 3 ms to minimize.
[2024-05-23 04:06:18] [INFO ] Deduced a trap composed of 135 places in 183 ms of which 3 ms to minimize.
[2024-05-23 04:06:18] [INFO ] Trap strengthening (SAT) tested/added 8/7 trap constraints in 1691 ms
[2024-05-23 04:06:18] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 71 ms.
[2024-05-23 04:06:18] [INFO ] Added : 2 causal constraints over 1 iterations in 170 ms. Result :sat
Minimization took 293 ms.
[2024-05-23 04:06:18] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:06:18] [INFO ] [Real]Absence check using state equation in 141 ms returned sat
[2024-05-23 04:06:18] [INFO ] [Real]Added 95 Read/Feed constraints in 47 ms returned sat
[2024-05-23 04:06:19] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:06:19] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:06:19] [INFO ] [Nat]Absence check using state equation in 143 ms returned sat
[2024-05-23 04:06:19] [INFO ] [Nat]Added 95 Read/Feed constraints in 39 ms returned sat
[2024-05-23 04:06:19] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 66 ms.
[2024-05-23 04:06:19] [INFO ] Added : 2 causal constraints over 1 iterations in 156 ms. Result :sat
Minimization took 280 ms.
[2024-05-23 04:06:19] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:06:19] [INFO ] [Real]Absence check using state equation in 145 ms returned sat
[2024-05-23 04:06:20] [INFO ] [Real]Added 95 Read/Feed constraints in 47 ms returned sat
[2024-05-23 04:06:20] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:06:20] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:06:20] [INFO ] [Nat]Absence check using state equation in 145 ms returned sat
[2024-05-23 04:06:20] [INFO ] [Nat]Added 95 Read/Feed constraints in 42 ms returned sat
[2024-05-23 04:06:20] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 75 ms.
[2024-05-23 04:06:20] [INFO ] Added : 2 causal constraints over 1 iterations in 167 ms. Result :sat
Minimization took 274 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[194, 4, 6, 7239, 4, 390, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[194, 4, 6, 7239, 4, 390, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 7 out of 469 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 469/469 places, 1317/1317 transitions.
Applied a total of 0 rules in 51 ms. Remains 469 /469 variables (removed 0) and now considering 1317/1317 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 52 ms. Remains : 469/469 places, 1317/1317 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 469/469 places, 1317/1317 transitions.
Applied a total of 0 rules in 54 ms. Remains 469 /469 variables (removed 0) and now considering 1317/1317 (removed 0) transitions.
[2024-05-23 04:06:26] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
[2024-05-23 04:06:26] [INFO ] Invariant cache hit.
[2024-05-23 04:06:26] [INFO ] Implicit Places using invariants in 434 ms returned []
[2024-05-23 04:06:26] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
[2024-05-23 04:06:26] [INFO ] Invariant cache hit.
[2024-05-23 04:06:26] [INFO ] State equation strengthened by 95 read => feed constraints.
[2024-05-23 04:06:28] [INFO ] Implicit Places using invariants and state equation in 1459 ms returned []
Implicit Place search using SMT with State Equation took 1897 ms to find 0 implicit places.
[2024-05-23 04:06:28] [INFO ] Redundant transitions in 85 ms returned []
Running 1315 sub problems to find dead transitions.
[2024-05-23 04:06:28] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
[2024-05-23 04:06:28] [INFO ] Invariant cache hit.
[2024-05-23 04:06:28] [INFO ] State equation strengthened by 95 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/468 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
[2024-05-23 04:06:44] [INFO ] Deduced a trap composed of 131 places in 207 ms of which 2 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/468 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 468/1232 variables, and 4 constraints, problems are : Problem set: 0 solved, 1315 unsolved in 30043 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/469 constraints, ReadFeed: 0/95 constraints, PredecessorRefiner: 1315/1315 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1315 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/468 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/468 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/468 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
At refinement iteration 3 (OVERLAPS) 763/1231 variables, 468/472 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1231 variables, 95/567 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/1231 variables, 256/823 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1231/1232 variables, and 823 constraints, problems are : Problem set: 0 solved, 1315 unsolved in 30035 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 468/469 constraints, ReadFeed: 95/95 constraints, PredecessorRefiner: 256/1315 constraints, Known Traps: 1/1 constraints]
After SMT, in 64887ms problems are : Problem set: 0 solved, 1315 unsolved
Search for dead transitions found 0 dead transitions in 64921ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 66985 ms. Remains : 469/469 places, 1317/1317 transitions.
[2024-05-23 04:07:33] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
Found an invariant !
This invariant on transitions {224=1, 350=1, 684=1, 755=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {248=1, 374=1, 708=1, 759=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 128 ms. (steps per millisecond=78 ) properties (out of 7) seen :[0, 0, 0, 0, 0, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[194, 4, 6, 7239, 4, 390, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 04:07:33] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
[2024-05-23 04:07:33] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[194, 4, 6, 7239, 4, 390, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 2472 ms. (404 steps per ms)
BEST_FIRST walk for 7000006 steps (14 resets) in 4438 ms. (1576 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[194, 349, 6, 7239, 4, 390, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 04:07:40] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
[2024-05-23 04:07:40] [INFO ] Invariant cache hit.
[2024-05-23 04:07:40] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:07:40] [INFO ] [Real]Absence check using state equation in 151 ms returned sat
[2024-05-23 04:07:40] [INFO ] State equation strengthened by 95 read => feed constraints.
[2024-05-23 04:07:40] [INFO ] [Real]Added 95 Read/Feed constraints in 57 ms returned sat
[2024-05-23 04:07:40] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:07:40] [INFO ] [Nat]Absence check using 3 positive place invariants in 6 ms returned sat
[2024-05-23 04:07:41] [INFO ] [Nat]Absence check using state equation in 162 ms returned sat
[2024-05-23 04:07:41] [INFO ] [Nat]Added 95 Read/Feed constraints in 39 ms returned sat
[2024-05-23 04:07:41] [INFO ] Deduced a trap composed of 75 places in 210 ms of which 4 ms to minimize.
[2024-05-23 04:07:41] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 259 ms
[2024-05-23 04:07:41] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 67 ms.
[2024-05-23 04:07:41] [INFO ] Added : 2 causal constraints over 1 iterations in 162 ms. Result :sat
Minimization took 278 ms.
[2024-05-23 04:07:41] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:07:42] [INFO ] [Real]Absence check using state equation in 152 ms returned sat
[2024-05-23 04:07:42] [INFO ] [Real]Added 95 Read/Feed constraints in 50 ms returned sat
[2024-05-23 04:07:42] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:07:42] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:07:42] [INFO ] [Nat]Absence check using state equation in 153 ms returned sat
[2024-05-23 04:07:42] [INFO ] [Nat]Added 95 Read/Feed constraints in 36 ms returned sat
[2024-05-23 04:07:42] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 64 ms.
[2024-05-23 04:07:42] [INFO ] Added : 2 causal constraints over 1 iterations in 159 ms. Result :sat
Minimization took 281 ms.
[2024-05-23 04:07:42] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:07:43] [INFO ] [Real]Absence check using state equation in 142 ms returned sat
[2024-05-23 04:07:43] [INFO ] [Real]Added 95 Read/Feed constraints in 39 ms returned sat
[2024-05-23 04:07:43] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:07:43] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:07:43] [INFO ] [Nat]Absence check using state equation in 148 ms returned sat
[2024-05-23 04:07:43] [INFO ] [Nat]Added 95 Read/Feed constraints in 35 ms returned sat
[2024-05-23 04:07:43] [INFO ] Deduced a trap composed of 100 places in 207 ms of which 3 ms to minimize.
[2024-05-23 04:07:43] [INFO ] Deduced a trap composed of 95 places in 198 ms of which 3 ms to minimize.
[2024-05-23 04:07:44] [INFO ] Deduced a trap composed of 83 places in 192 ms of which 3 ms to minimize.
[2024-05-23 04:07:44] [INFO ] Deduced a trap composed of 81 places in 195 ms of which 3 ms to minimize.
[2024-05-23 04:07:44] [INFO ] Deduced a trap composed of 78 places in 191 ms of which 3 ms to minimize.
[2024-05-23 04:07:44] [INFO ] Deduced a trap composed of 76 places in 200 ms of which 3 ms to minimize.
[2024-05-23 04:07:44] [INFO ] Deduced a trap composed of 75 places in 214 ms of which 3 ms to minimize.
[2024-05-23 04:07:44] [INFO ] Trap strengthening (SAT) tested/added 8/7 trap constraints in 1590 ms
[2024-05-23 04:07:45] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 70 ms.
[2024-05-23 04:07:45] [INFO ] Added : 2 causal constraints over 1 iterations in 167 ms. Result :sat
Minimization took 292 ms.
[2024-05-23 04:07:45] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:07:45] [INFO ] [Real]Absence check using state equation in 154 ms returned sat
[2024-05-23 04:07:45] [INFO ] [Real]Added 95 Read/Feed constraints in 45 ms returned sat
[2024-05-23 04:07:45] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:07:45] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:07:45] [INFO ] [Nat]Absence check using state equation in 151 ms returned sat
[2024-05-23 04:07:46] [INFO ] [Nat]Added 95 Read/Feed constraints in 46 ms returned sat
[2024-05-23 04:07:46] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 68 ms.
[2024-05-23 04:07:46] [INFO ] Added : 4 causal constraints over 1 iterations in 165 ms. Result :sat
Minimization took 266 ms.
[2024-05-23 04:07:46] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:07:46] [INFO ] [Real]Absence check using state equation in 145 ms returned sat
[2024-05-23 04:07:46] [INFO ] [Real]Added 95 Read/Feed constraints in 22 ms returned sat
[2024-05-23 04:07:46] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:07:46] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:07:47] [INFO ] [Nat]Absence check using state equation in 159 ms returned sat
[2024-05-23 04:07:47] [INFO ] [Nat]Added 95 Read/Feed constraints in 44 ms returned sat
[2024-05-23 04:07:47] [INFO ] Deduced a trap composed of 100 places in 206 ms of which 5 ms to minimize.
[2024-05-23 04:07:47] [INFO ] Deduced a trap composed of 93 places in 205 ms of which 4 ms to minimize.
[2024-05-23 04:07:47] [INFO ] Deduced a trap composed of 83 places in 201 ms of which 3 ms to minimize.
[2024-05-23 04:07:47] [INFO ] Deduced a trap composed of 78 places in 205 ms of which 3 ms to minimize.
[2024-05-23 04:07:48] [INFO ] Deduced a trap composed of 76 places in 208 ms of which 2 ms to minimize.
[2024-05-23 04:07:48] [INFO ] Deduced a trap composed of 82 places in 211 ms of which 3 ms to minimize.
[2024-05-23 04:07:48] [INFO ] Deduced a trap composed of 135 places in 173 ms of which 3 ms to minimize.
[2024-05-23 04:07:48] [INFO ] Trap strengthening (SAT) tested/added 8/7 trap constraints in 1630 ms
[2024-05-23 04:07:48] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 69 ms.
[2024-05-23 04:07:48] [INFO ] Added : 2 causal constraints over 1 iterations in 159 ms. Result :sat
Minimization took 335 ms.
[2024-05-23 04:07:49] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:07:49] [INFO ] [Real]Absence check using state equation in 149 ms returned sat
[2024-05-23 04:07:49] [INFO ] [Real]Added 95 Read/Feed constraints in 48 ms returned sat
[2024-05-23 04:07:49] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:07:49] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:07:49] [INFO ] [Nat]Absence check using state equation in 158 ms returned sat
[2024-05-23 04:07:49] [INFO ] [Nat]Added 95 Read/Feed constraints in 42 ms returned sat
[2024-05-23 04:07:49] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 69 ms.
[2024-05-23 04:07:49] [INFO ] Added : 2 causal constraints over 1 iterations in 156 ms. Result :sat
Minimization took 289 ms.
[2024-05-23 04:07:50] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:07:50] [INFO ] [Real]Absence check using state equation in 151 ms returned sat
[2024-05-23 04:07:50] [INFO ] [Real]Added 95 Read/Feed constraints in 50 ms returned sat
[2024-05-23 04:07:50] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:07:50] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:07:50] [INFO ] [Nat]Absence check using state equation in 158 ms returned sat
[2024-05-23 04:07:50] [INFO ] [Nat]Added 95 Read/Feed constraints in 44 ms returned sat
[2024-05-23 04:07:50] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 69 ms.
[2024-05-23 04:07:51] [INFO ] Added : 2 causal constraints over 1 iterations in 172 ms. Result :sat
Minimization took 321 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[194, 349, 6, 7239, 4, 390, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[194, 349, 6, 7239, 4, 390, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 7 out of 469 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 469/469 places, 1317/1317 transitions.
Applied a total of 0 rules in 50 ms. Remains 469 /469 variables (removed 0) and now considering 1317/1317 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 50 ms. Remains : 469/469 places, 1317/1317 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 469/469 places, 1317/1317 transitions.
Applied a total of 0 rules in 50 ms. Remains 469 /469 variables (removed 0) and now considering 1317/1317 (removed 0) transitions.
[2024-05-23 04:07:58] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
[2024-05-23 04:07:58] [INFO ] Invariant cache hit.
[2024-05-23 04:07:58] [INFO ] Implicit Places using invariants in 321 ms returned []
[2024-05-23 04:07:58] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
[2024-05-23 04:07:58] [INFO ] Invariant cache hit.
[2024-05-23 04:07:58] [INFO ] State equation strengthened by 95 read => feed constraints.
[2024-05-23 04:07:59] [INFO ] Implicit Places using invariants and state equation in 1433 ms returned []
Implicit Place search using SMT with State Equation took 1758 ms to find 0 implicit places.
[2024-05-23 04:07:59] [INFO ] Redundant transitions in 32 ms returned []
Running 1315 sub problems to find dead transitions.
[2024-05-23 04:07:59] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
[2024-05-23 04:07:59] [INFO ] Invariant cache hit.
[2024-05-23 04:07:59] [INFO ] State equation strengthened by 95 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/468 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
[2024-05-23 04:08:15] [INFO ] Deduced a trap composed of 131 places in 141 ms of which 3 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/468 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
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 468/1232 variables, and 4 constraints, problems are : Problem set: 0 solved, 1315 unsolved in 30024 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/469 constraints, ReadFeed: 0/95 constraints, PredecessorRefiner: 1315/1315 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1315 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/468 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/468 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/468 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
At refinement iteration 3 (OVERLAPS) 763/1231 variables, 468/472 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1231 variables, 95/567 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/1231 variables, 256/823 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1231/1232 variables, and 823 constraints, problems are : Problem set: 0 solved, 1315 unsolved in 30025 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 468/469 constraints, ReadFeed: 95/95 constraints, PredecessorRefiner: 256/1315 constraints, Known Traps: 1/1 constraints]
After SMT, in 64449ms problems are : Problem set: 0 solved, 1315 unsolved
Search for dead transitions found 0 dead transitions in 64462ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 66313 ms. Remains : 469/469 places, 1317/1317 transitions.
[2024-05-23 04:09:04] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
Found an invariant !
This invariant on transitions {224=1, 350=1, 684=1, 755=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {248=1, 374=1, 708=1, 759=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 39 ms. (steps per millisecond=256 ) properties (out of 7) seen :[0, 0, 0, 33, 0, 4, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[194, 349, 6, 7239, 4, 390, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 04:09:04] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
[2024-05-23 04:09:04] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[194, 349, 6, 7239, 4, 390, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000003 steps (2 resets) in 2375 ms. (420 steps per ms)
BEST_FIRST walk for 7000006 steps (14 resets) in 4295 ms. (1629 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[194, 349, 6, 7239, 4, 462, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 04:09:11] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
[2024-05-23 04:09:11] [INFO ] Invariant cache hit.
[2024-05-23 04:09:11] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:09:11] [INFO ] [Real]Absence check using state equation in 159 ms returned sat
[2024-05-23 04:09:11] [INFO ] State equation strengthened by 95 read => feed constraints.
[2024-05-23 04:09:11] [INFO ] [Real]Added 95 Read/Feed constraints in 56 ms returned sat
[2024-05-23 04:09:11] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:09:11] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:09:11] [INFO ] [Nat]Absence check using state equation in 158 ms returned sat
[2024-05-23 04:09:11] [INFO ] [Nat]Added 95 Read/Feed constraints in 27 ms returned sat
[2024-05-23 04:09:12] [INFO ] Deduced a trap composed of 75 places in 207 ms of which 3 ms to minimize.
[2024-05-23 04:09:12] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 260 ms
[2024-05-23 04:09:12] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 70 ms.
[2024-05-23 04:09:12] [INFO ] Added : 2 causal constraints over 1 iterations in 158 ms. Result :sat
Minimization took 315 ms.
[2024-05-23 04:09:12] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:09:12] [INFO ] [Real]Absence check using state equation in 148 ms returned sat
[2024-05-23 04:09:12] [INFO ] [Real]Added 95 Read/Feed constraints in 48 ms returned sat
[2024-05-23 04:09:12] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:09:13] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:09:13] [INFO ] [Nat]Absence check using state equation in 153 ms returned sat
[2024-05-23 04:09:13] [INFO ] [Nat]Added 95 Read/Feed constraints in 36 ms returned sat
[2024-05-23 04:09:13] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 65 ms.
[2024-05-23 04:09:13] [INFO ] Added : 2 causal constraints over 1 iterations in 155 ms. Result :sat
Minimization took 286 ms.
[2024-05-23 04:09:13] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:09:13] [INFO ] [Real]Absence check using state equation in 145 ms returned sat
[2024-05-23 04:09:13] [INFO ] [Real]Added 95 Read/Feed constraints in 35 ms returned sat
[2024-05-23 04:09:14] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:09:14] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:09:14] [INFO ] [Nat]Absence check using state equation in 148 ms returned sat
[2024-05-23 04:09:14] [INFO ] [Nat]Added 95 Read/Feed constraints in 34 ms returned sat
[2024-05-23 04:09:14] [INFO ] Deduced a trap composed of 100 places in 219 ms of which 3 ms to minimize.
[2024-05-23 04:09:14] [INFO ] Deduced a trap composed of 95 places in 198 ms of which 3 ms to minimize.
[2024-05-23 04:09:14] [INFO ] Deduced a trap composed of 83 places in 197 ms of which 3 ms to minimize.
[2024-05-23 04:09:15] [INFO ] Deduced a trap composed of 81 places in 203 ms of which 3 ms to minimize.
[2024-05-23 04:09:15] [INFO ] Deduced a trap composed of 78 places in 196 ms of which 3 ms to minimize.
[2024-05-23 04:09:15] [INFO ] Deduced a trap composed of 76 places in 195 ms of which 3 ms to minimize.
[2024-05-23 04:09:15] [INFO ] Deduced a trap composed of 75 places in 199 ms of which 3 ms to minimize.
[2024-05-23 04:09:15] [INFO ] Trap strengthening (SAT) tested/added 8/7 trap constraints in 1604 ms
[2024-05-23 04:09:15] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 73 ms.
[2024-05-23 04:09:16] [INFO ] Added : 2 causal constraints over 1 iterations in 180 ms. Result :sat
Minimization took 292 ms.
[2024-05-23 04:09:16] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:09:16] [INFO ] [Real]Absence check using state equation in 161 ms returned sat
[2024-05-23 04:09:16] [INFO ] [Real]Added 95 Read/Feed constraints in 45 ms returned sat
[2024-05-23 04:09:16] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:09:16] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:09:16] [INFO ] [Nat]Absence check using state equation in 154 ms returned sat
[2024-05-23 04:09:16] [INFO ] [Nat]Added 95 Read/Feed constraints in 39 ms returned sat
[2024-05-23 04:09:17] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 67 ms.
[2024-05-23 04:09:17] [INFO ] Added : 4 causal constraints over 1 iterations in 159 ms. Result :sat
Minimization took 281 ms.
[2024-05-23 04:09:17] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:09:17] [INFO ] [Real]Absence check using state equation in 153 ms returned sat
[2024-05-23 04:09:17] [INFO ] [Real]Added 95 Read/Feed constraints in 23 ms returned sat
[2024-05-23 04:09:17] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:09:17] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:09:17] [INFO ] [Nat]Absence check using state equation in 159 ms returned sat
[2024-05-23 04:09:17] [INFO ] [Nat]Added 95 Read/Feed constraints in 44 ms returned sat
[2024-05-23 04:09:18] [INFO ] Deduced a trap composed of 100 places in 207 ms of which 4 ms to minimize.
[2024-05-23 04:09:18] [INFO ] Deduced a trap composed of 93 places in 201 ms of which 3 ms to minimize.
[2024-05-23 04:09:18] [INFO ] Deduced a trap composed of 83 places in 207 ms of which 3 ms to minimize.
[2024-05-23 04:09:18] [INFO ] Deduced a trap composed of 78 places in 198 ms of which 3 ms to minimize.
[2024-05-23 04:09:19] [INFO ] Deduced a trap composed of 76 places in 199 ms of which 3 ms to minimize.
[2024-05-23 04:09:19] [INFO ] Deduced a trap composed of 82 places in 207 ms of which 3 ms to minimize.
[2024-05-23 04:09:19] [INFO ] Deduced a trap composed of 135 places in 179 ms of which 3 ms to minimize.
[2024-05-23 04:09:19] [INFO ] Trap strengthening (SAT) tested/added 8/7 trap constraints in 1609 ms
[2024-05-23 04:09:19] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 74 ms.
[2024-05-23 04:09:19] [INFO ] Added : 2 causal constraints over 1 iterations in 165 ms. Result :sat
Minimization took 344 ms.
[2024-05-23 04:09:20] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:09:20] [INFO ] [Real]Absence check using state equation in 156 ms returned sat
[2024-05-23 04:09:20] [INFO ] [Real]Added 95 Read/Feed constraints in 51 ms returned sat
[2024-05-23 04:09:20] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:09:20] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:09:20] [INFO ] [Nat]Absence check using state equation in 158 ms returned sat
[2024-05-23 04:09:20] [INFO ] [Nat]Added 95 Read/Feed constraints in 41 ms returned sat
[2024-05-23 04:09:20] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 67 ms.
[2024-05-23 04:09:20] [INFO ] Added : 2 causal constraints over 1 iterations in 157 ms. Result :sat
Minimization took 311 ms.
[2024-05-23 04:09:21] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:09:21] [INFO ] [Real]Absence check using state equation in 155 ms returned sat
[2024-05-23 04:09:21] [INFO ] [Real]Added 95 Read/Feed constraints in 49 ms returned sat
[2024-05-23 04:09:21] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:09:21] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:09:21] [INFO ] [Nat]Absence check using state equation in 155 ms returned sat
[2024-05-23 04:09:21] [INFO ] [Nat]Added 95 Read/Feed constraints in 43 ms returned sat
[2024-05-23 04:09:21] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 65 ms.
[2024-05-23 04:09:22] [INFO ] Added : 2 causal constraints over 1 iterations in 157 ms. Result :sat
Minimization took 284 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[194, 349, 6, 7239, 4, 462, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[194, 349, 6, 7239, 4, 462, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 7 out of 469 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 469/469 places, 1317/1317 transitions.
Applied a total of 0 rules in 49 ms. Remains 469 /469 variables (removed 0) and now considering 1317/1317 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 49 ms. Remains : 469/469 places, 1317/1317 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 469/469 places, 1317/1317 transitions.
Applied a total of 0 rules in 47 ms. Remains 469 /469 variables (removed 0) and now considering 1317/1317 (removed 0) transitions.
[2024-05-23 04:09:29] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
[2024-05-23 04:09:29] [INFO ] Invariant cache hit.
[2024-05-23 04:09:29] [INFO ] Implicit Places using invariants in 330 ms returned []
[2024-05-23 04:09:29] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
[2024-05-23 04:09:29] [INFO ] Invariant cache hit.
[2024-05-23 04:09:29] [INFO ] State equation strengthened by 95 read => feed constraints.
[2024-05-23 04:09:31] [INFO ] Implicit Places using invariants and state equation in 1446 ms returned []
Implicit Place search using SMT with State Equation took 1780 ms to find 0 implicit places.
[2024-05-23 04:09:31] [INFO ] Redundant transitions in 21 ms returned []
Running 1315 sub problems to find dead transitions.
[2024-05-23 04:09:31] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
[2024-05-23 04:09:31] [INFO ] Invariant cache hit.
[2024-05-23 04:09:31] [INFO ] State equation strengthened by 95 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/468 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
[2024-05-23 04:09:47] [INFO ] Deduced a trap composed of 131 places in 149 ms of which 3 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/468 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
Error getting values : (error "ParserException while parsing response: ((s0 0.0)
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(s375 1.0)
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(s383 1.0)
(s384 timeout
1.0) org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 468/1232 variables, and 4 constraints, problems are : Problem set: 0 solved, 1315 unsolved in 30025 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/469 constraints, ReadFeed: 0/95 constraints, PredecessorRefiner: 1315/1315 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1315 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/468 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/468 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/468 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
At refinement iteration 3 (OVERLAPS) 763/1231 variables, 468/472 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1231 variables, 95/567 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/1231 variables, 256/823 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1231/1232 variables, and 823 constraints, problems are : Problem set: 0 solved, 1315 unsolved in 30035 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 468/469 constraints, ReadFeed: 95/95 constraints, PredecessorRefiner: 256/1315 constraints, Known Traps: 1/1 constraints]
After SMT, in 65154ms problems are : Problem set: 0 solved, 1315 unsolved
Search for dead transitions found 0 dead transitions in 65166ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 67029 ms. Remains : 469/469 places, 1317/1317 transitions.
[2024-05-23 04:10:36] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
Found an invariant !
This invariant on transitions {224=1, 350=1, 684=1, 755=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {248=1, 374=1, 708=1, 759=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 46 ms. (steps per millisecond=217 ) properties (out of 7) seen :[0, 0, 0, 28, 0, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[194, 349, 6, 7239, 4, 462, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 04:10:36] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
[2024-05-23 04:10:36] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[194, 349, 6, 7239, 4, 462, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 2372 ms. (421 steps per ms)
BEST_FIRST walk for 7000007 steps (14 resets) in 4129 ms. (1694 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[194, 349, 505, 7239, 4, 462, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 04:10:43] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
[2024-05-23 04:10:43] [INFO ] Invariant cache hit.
[2024-05-23 04:10:43] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:10:43] [INFO ] [Real]Absence check using state equation in 144 ms returned sat
[2024-05-23 04:10:43] [INFO ] State equation strengthened by 95 read => feed constraints.
[2024-05-23 04:10:43] [INFO ] [Real]Added 95 Read/Feed constraints in 53 ms returned sat
[2024-05-23 04:10:43] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:10:43] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:10:43] [INFO ] [Nat]Absence check using state equation in 149 ms returned sat
[2024-05-23 04:10:43] [INFO ] [Nat]Added 95 Read/Feed constraints in 26 ms returned sat
[2024-05-23 04:10:43] [INFO ] Deduced a trap composed of 75 places in 203 ms of which 3 ms to minimize.
[2024-05-23 04:10:43] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 256 ms
[2024-05-23 04:10:43] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 65 ms.
[2024-05-23 04:10:44] [INFO ] Added : 2 causal constraints over 1 iterations in 155 ms. Result :sat
Minimization took 276 ms.
[2024-05-23 04:10:44] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:10:44] [INFO ] [Real]Absence check using state equation in 143 ms returned sat
[2024-05-23 04:10:44] [INFO ] [Real]Added 95 Read/Feed constraints in 49 ms returned sat
[2024-05-23 04:10:44] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:10:44] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:10:44] [INFO ] [Nat]Absence check using state equation in 145 ms returned sat
[2024-05-23 04:10:44] [INFO ] [Nat]Added 95 Read/Feed constraints in 36 ms returned sat
[2024-05-23 04:10:45] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 66 ms.
[2024-05-23 04:10:45] [INFO ] Added : 2 causal constraints over 1 iterations in 155 ms. Result :sat
Minimization took 271 ms.
[2024-05-23 04:10:45] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:10:45] [INFO ] [Real]Absence check using state equation in 150 ms returned sat
[2024-05-23 04:10:45] [INFO ] [Real]Added 95 Read/Feed constraints in 46 ms returned sat
[2024-05-23 04:10:45] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:10:45] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:10:45] [INFO ] [Nat]Absence check using state equation in 143 ms returned sat
[2024-05-23 04:10:45] [INFO ] [Nat]Added 95 Read/Feed constraints in 35 ms returned sat
[2024-05-23 04:10:46] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 66 ms.
[2024-05-23 04:10:46] [INFO ] Added : 2 causal constraints over 1 iterations in 151 ms. Result :sat
Minimization took 267 ms.
[2024-05-23 04:10:46] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:10:46] [INFO ] [Real]Absence check using state equation in 149 ms returned sat
[2024-05-23 04:10:46] [INFO ] [Real]Added 95 Read/Feed constraints in 44 ms returned sat
[2024-05-23 04:10:46] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:10:46] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:10:46] [INFO ] [Nat]Absence check using state equation in 149 ms returned sat
[2024-05-23 04:10:46] [INFO ] [Nat]Added 95 Read/Feed constraints in 39 ms returned sat
[2024-05-23 04:10:47] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 66 ms.
[2024-05-23 04:10:47] [INFO ] Added : 4 causal constraints over 1 iterations in 159 ms. Result :sat
Minimization took 268 ms.
[2024-05-23 04:10:47] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:10:47] [INFO ] [Real]Absence check using state equation in 149 ms returned sat
[2024-05-23 04:10:47] [INFO ] [Real]Added 95 Read/Feed constraints in 21 ms returned sat
[2024-05-23 04:10:47] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:10:47] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:10:47] [INFO ] [Nat]Absence check using state equation in 147 ms returned sat
[2024-05-23 04:10:47] [INFO ] [Nat]Added 95 Read/Feed constraints in 44 ms returned sat
[2024-05-23 04:10:48] [INFO ] Deduced a trap composed of 100 places in 207 ms of which 4 ms to minimize.
[2024-05-23 04:10:48] [INFO ] Deduced a trap composed of 93 places in 194 ms of which 4 ms to minimize.
[2024-05-23 04:10:48] [INFO ] Deduced a trap composed of 83 places in 218 ms of which 3 ms to minimize.
[2024-05-23 04:10:48] [INFO ] Deduced a trap composed of 78 places in 209 ms of which 3 ms to minimize.
[2024-05-23 04:10:49] [INFO ] Deduced a trap composed of 76 places in 213 ms of which 3 ms to minimize.
[2024-05-23 04:10:49] [INFO ] Deduced a trap composed of 82 places in 218 ms of which 4 ms to minimize.
[2024-05-23 04:10:49] [INFO ] Deduced a trap composed of 135 places in 189 ms of which 3 ms to minimize.
[2024-05-23 04:10:49] [INFO ] Trap strengthening (SAT) tested/added 8/7 trap constraints in 1664 ms
[2024-05-23 04:10:49] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 89 ms.
[2024-05-23 04:10:49] [INFO ] Added : 2 causal constraints over 1 iterations in 182 ms. Result :sat
Minimization took 308 ms.
[2024-05-23 04:10:50] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:10:50] [INFO ] [Real]Absence check using state equation in 156 ms returned sat
[2024-05-23 04:10:50] [INFO ] [Real]Added 95 Read/Feed constraints in 50 ms returned sat
[2024-05-23 04:10:50] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:10:50] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:10:50] [INFO ] [Nat]Absence check using state equation in 141 ms returned sat
[2024-05-23 04:10:50] [INFO ] [Nat]Added 95 Read/Feed constraints in 39 ms returned sat
[2024-05-23 04:10:50] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 65 ms.
[2024-05-23 04:10:50] [INFO ] Added : 2 causal constraints over 1 iterations in 157 ms. Result :sat
Minimization took 276 ms.
[2024-05-23 04:10:51] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:10:51] [INFO ] [Real]Absence check using state equation in 170 ms returned sat
[2024-05-23 04:10:51] [INFO ] [Real]Added 95 Read/Feed constraints in 50 ms returned sat
[2024-05-23 04:10:51] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:10:51] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:10:51] [INFO ] [Nat]Absence check using state equation in 168 ms returned sat
[2024-05-23 04:10:51] [INFO ] [Nat]Added 95 Read/Feed constraints in 45 ms returned sat
[2024-05-23 04:10:51] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 71 ms.
[2024-05-23 04:10:52] [INFO ] Added : 2 causal constraints over 1 iterations in 170 ms. Result :sat
Minimization took 333 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[194, 349, 505, 7239, 4, 462, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[194, 349, 505, 7239, 4, 462, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 7 out of 469 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 469/469 places, 1317/1317 transitions.
Applied a total of 0 rules in 48 ms. Remains 469 /469 variables (removed 0) and now considering 1317/1317 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 49 ms. Remains : 469/469 places, 1317/1317 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 469/469 places, 1317/1317 transitions.
Applied a total of 0 rules in 49 ms. Remains 469 /469 variables (removed 0) and now considering 1317/1317 (removed 0) transitions.
[2024-05-23 04:11:00] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
[2024-05-23 04:11:00] [INFO ] Invariant cache hit.
[2024-05-23 04:11:01] [INFO ] Implicit Places using invariants in 330 ms returned []
[2024-05-23 04:11:01] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
[2024-05-23 04:11:01] [INFO ] Invariant cache hit.
[2024-05-23 04:11:01] [INFO ] State equation strengthened by 95 read => feed constraints.
[2024-05-23 04:11:02] [INFO ] Implicit Places using invariants and state equation in 1380 ms returned []
Implicit Place search using SMT with State Equation took 1712 ms to find 0 implicit places.
[2024-05-23 04:11:02] [INFO ] Redundant transitions in 19 ms returned []
Running 1315 sub problems to find dead transitions.
[2024-05-23 04:11:02] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
[2024-05-23 04:11:02] [INFO ] Invariant cache hit.
[2024-05-23 04:11:02] [INFO ] State equation strengthened by 95 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/468 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
[2024-05-23 04:11:17] [INFO ] Deduced a trap composed of 131 places in 157 ms of which 3 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/468 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 468/1232 variables, and 4 constraints, problems are : Problem set: 0 solved, 1315 unsolved in 30028 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/469 constraints, ReadFeed: 0/95 constraints, PredecessorRefiner: 1315/1315 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1315 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/468 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/468 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/468 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
At refinement iteration 3 (OVERLAPS) 763/1231 variables, 468/472 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1231 variables, 95/567 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/1231 variables, 256/823 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1231/1232 variables, and 823 constraints, problems are : Problem set: 0 solved, 1315 unsolved in 30035 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 468/469 constraints, ReadFeed: 95/95 constraints, PredecessorRefiner: 256/1315 constraints, Known Traps: 1/1 constraints]
After SMT, in 64244ms problems are : Problem set: 0 solved, 1315 unsolved
Search for dead transitions found 0 dead transitions in 64261ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 66053 ms. Remains : 469/469 places, 1317/1317 transitions.
[2024-05-23 04:12:06] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
Found an invariant !
This invariant on transitions {224=1, 350=1, 684=1, 755=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {248=1, 374=1, 708=1, 759=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 45 ms. (steps per millisecond=222 ) properties (out of 7) seen :[0, 0, 0, 20, 0, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[194, 349, 505, 7239, 4, 462, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 04:12:07] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
[2024-05-23 04:12:07] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[194, 349, 505, 7239, 4, 462, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000001 steps (2 resets) in 2372 ms. (421 steps per ms)
BEST_FIRST walk for 7000007 steps (14 resets) in 4140 ms. (1690 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[194, 349, 514, 7239, 4, 462, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 04:12:13] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
[2024-05-23 04:12:13] [INFO ] Invariant cache hit.
[2024-05-23 04:12:13] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:12:13] [INFO ] [Real]Absence check using state equation in 144 ms returned sat
[2024-05-23 04:12:13] [INFO ] State equation strengthened by 95 read => feed constraints.
[2024-05-23 04:12:13] [INFO ] [Real]Added 95 Read/Feed constraints in 52 ms returned sat
[2024-05-23 04:12:13] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:12:13] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:12:14] [INFO ] [Nat]Absence check using state equation in 151 ms returned sat
[2024-05-23 04:12:14] [INFO ] [Nat]Added 95 Read/Feed constraints in 25 ms returned sat
[2024-05-23 04:12:14] [INFO ] Deduced a trap composed of 75 places in 209 ms of which 3 ms to minimize.
[2024-05-23 04:12:14] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 254 ms
[2024-05-23 04:12:14] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 63 ms.
[2024-05-23 04:12:14] [INFO ] Added : 2 causal constraints over 1 iterations in 152 ms. Result :sat
Minimization took 272 ms.
[2024-05-23 04:12:14] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:12:15] [INFO ] [Real]Absence check using state equation in 140 ms returned sat
[2024-05-23 04:12:15] [INFO ] [Real]Added 95 Read/Feed constraints in 48 ms returned sat
[2024-05-23 04:12:15] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:12:15] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:12:15] [INFO ] [Nat]Absence check using state equation in 148 ms returned sat
[2024-05-23 04:12:15] [INFO ] [Nat]Added 95 Read/Feed constraints in 36 ms returned sat
[2024-05-23 04:12:15] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 64 ms.
[2024-05-23 04:12:15] [INFO ] Added : 2 causal constraints over 1 iterations in 158 ms. Result :sat
Minimization took 271 ms.
[2024-05-23 04:12:15] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:12:16] [INFO ] [Real]Absence check using state equation in 167 ms returned sat
[2024-05-23 04:12:16] [INFO ] [Real]Added 95 Read/Feed constraints in 50 ms returned sat
[2024-05-23 04:12:16] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:12:16] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:12:16] [INFO ] [Nat]Absence check using state equation in 144 ms returned sat
[2024-05-23 04:12:16] [INFO ] [Nat]Added 95 Read/Feed constraints in 35 ms returned sat
[2024-05-23 04:12:16] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 66 ms.
[2024-05-23 04:12:16] [INFO ] Added : 2 causal constraints over 1 iterations in 154 ms. Result :sat
Minimization took 265 ms.
[2024-05-23 04:12:16] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:12:17] [INFO ] [Real]Absence check using state equation in 148 ms returned sat
[2024-05-23 04:12:17] [INFO ] [Real]Added 95 Read/Feed constraints in 41 ms returned sat
[2024-05-23 04:12:17] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:12:17] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:12:17] [INFO ] [Nat]Absence check using state equation in 145 ms returned sat
[2024-05-23 04:12:17] [INFO ] [Nat]Added 95 Read/Feed constraints in 38 ms returned sat
[2024-05-23 04:12:17] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 66 ms.
[2024-05-23 04:12:17] [INFO ] Added : 4 causal constraints over 1 iterations in 153 ms. Result :sat
Minimization took 268 ms.
[2024-05-23 04:12:17] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:12:18] [INFO ] [Real]Absence check using state equation in 149 ms returned sat
[2024-05-23 04:12:18] [INFO ] [Real]Added 95 Read/Feed constraints in 23 ms returned sat
[2024-05-23 04:12:18] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:12:18] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:12:18] [INFO ] [Nat]Absence check using state equation in 143 ms returned sat
[2024-05-23 04:12:18] [INFO ] [Nat]Added 95 Read/Feed constraints in 43 ms returned sat
[2024-05-23 04:12:18] [INFO ] Deduced a trap composed of 100 places in 206 ms of which 4 ms to minimize.
[2024-05-23 04:12:18] [INFO ] Deduced a trap composed of 93 places in 187 ms of which 3 ms to minimize.
[2024-05-23 04:12:19] [INFO ] Deduced a trap composed of 83 places in 200 ms of which 2 ms to minimize.
[2024-05-23 04:12:19] [INFO ] Deduced a trap composed of 78 places in 212 ms of which 3 ms to minimize.
[2024-05-23 04:12:19] [INFO ] Deduced a trap composed of 76 places in 200 ms of which 3 ms to minimize.
[2024-05-23 04:12:19] [INFO ] Deduced a trap composed of 82 places in 202 ms of which 3 ms to minimize.
[2024-05-23 04:12:19] [INFO ] Deduced a trap composed of 135 places in 161 ms of which 3 ms to minimize.
[2024-05-23 04:12:19] [INFO ] Trap strengthening (SAT) tested/added 8/7 trap constraints in 1566 ms
[2024-05-23 04:12:20] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 64 ms.
[2024-05-23 04:12:20] [INFO ] Added : 2 causal constraints over 1 iterations in 154 ms. Result :sat
Minimization took 289 ms.
[2024-05-23 04:12:20] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:12:20] [INFO ] [Real]Absence check using state equation in 144 ms returned sat
[2024-05-23 04:12:20] [INFO ] [Real]Added 95 Read/Feed constraints in 49 ms returned sat
[2024-05-23 04:12:20] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:12:20] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:12:20] [INFO ] [Nat]Absence check using state equation in 145 ms returned sat
[2024-05-23 04:12:21] [INFO ] [Nat]Added 95 Read/Feed constraints in 39 ms returned sat
[2024-05-23 04:12:21] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 67 ms.
[2024-05-23 04:12:21] [INFO ] Added : 2 causal constraints over 1 iterations in 150 ms. Result :sat
Minimization took 267 ms.
[2024-05-23 04:12:21] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:12:21] [INFO ] [Real]Absence check using state equation in 149 ms returned sat
[2024-05-23 04:12:21] [INFO ] [Real]Added 95 Read/Feed constraints in 46 ms returned sat
[2024-05-23 04:12:21] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:12:21] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:12:21] [INFO ] [Nat]Absence check using state equation in 143 ms returned sat
[2024-05-23 04:12:22] [INFO ] [Nat]Added 95 Read/Feed constraints in 41 ms returned sat
[2024-05-23 04:12:22] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 65 ms.
[2024-05-23 04:12:22] [INFO ] Added : 2 causal constraints over 1 iterations in 164 ms. Result :sat
Minimization took 269 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[194, 349, 514, 7239, 4, 462, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[194, 349, 514, 7239, 4, 462, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 7 out of 469 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 469/469 places, 1317/1317 transitions.
Applied a total of 0 rules in 48 ms. Remains 469 /469 variables (removed 0) and now considering 1317/1317 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 48 ms. Remains : 469/469 places, 1317/1317 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 469/469 places, 1317/1317 transitions.
Applied a total of 0 rules in 47 ms. Remains 469 /469 variables (removed 0) and now considering 1317/1317 (removed 0) transitions.
[2024-05-23 04:12:30] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
[2024-05-23 04:12:30] [INFO ] Invariant cache hit.
[2024-05-23 04:12:31] [INFO ] Implicit Places using invariants in 317 ms returned []
[2024-05-23 04:12:31] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
[2024-05-23 04:12:31] [INFO ] Invariant cache hit.
[2024-05-23 04:12:31] [INFO ] State equation strengthened by 95 read => feed constraints.
[2024-05-23 04:12:32] [INFO ] Implicit Places using invariants and state equation in 1360 ms returned []
Implicit Place search using SMT with State Equation took 1679 ms to find 0 implicit places.
[2024-05-23 04:12:32] [INFO ] Redundant transitions in 17 ms returned []
Running 1315 sub problems to find dead transitions.
[2024-05-23 04:12:32] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
[2024-05-23 04:12:32] [INFO ] Invariant cache hit.
[2024-05-23 04:12:32] [INFO ] State equation strengthened by 95 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/468 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
[2024-05-23 04:12:48] [INFO ] Deduced a trap composed of 131 places in 146 ms of which 5 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/468 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 468/1232 variables, and 4 constraints, problems are : Problem set: 0 solved, 1315 unsolved in 30025 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/469 constraints, ReadFeed: 0/95 constraints, PredecessorRefiner: 1315/1315 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1315 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/468 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/468 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/468 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
At refinement iteration 3 (OVERLAPS) 763/1231 variables, 468/472 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1231 variables, 95/567 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/1231 variables, 256/823 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1231/1232 variables, and 823 constraints, problems are : Problem set: 0 solved, 1315 unsolved in 30032 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 468/469 constraints, ReadFeed: 95/95 constraints, PredecessorRefiner: 256/1315 constraints, Known Traps: 1/1 constraints]
After SMT, in 64447ms problems are : Problem set: 0 solved, 1315 unsolved
Search for dead transitions found 0 dead transitions in 64463ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 66222 ms. Remains : 469/469 places, 1317/1317 transitions.
[2024-05-23 04:13:37] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
Found an invariant !
This invariant on transitions {224=1, 350=1, 684=1, 755=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {248=1, 374=1, 708=1, 759=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 7) seen :[0, 0, 0, 23, 0, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[194, 349, 514, 7239, 4, 462, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 04:13:37] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
[2024-05-23 04:13:37] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[194, 349, 514, 7239, 4, 462, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 2609 ms. (383 steps per ms)
BEST_FIRST walk for 7000006 steps (14 resets) in 4482 ms. (1561 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[194, 349, 514, 7239, 4, 462, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 04:13:44] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
[2024-05-23 04:13:44] [INFO ] Invariant cache hit.
[2024-05-23 04:13:44] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:13:44] [INFO ] [Real]Absence check using state equation in 161 ms returned sat
[2024-05-23 04:13:44] [INFO ] State equation strengthened by 95 read => feed constraints.
[2024-05-23 04:13:44] [INFO ] [Real]Added 95 Read/Feed constraints in 60 ms returned sat
[2024-05-23 04:13:44] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:13:45] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:13:45] [INFO ] [Nat]Absence check using state equation in 147 ms returned sat
[2024-05-23 04:13:45] [INFO ] [Nat]Added 95 Read/Feed constraints in 26 ms returned sat
[2024-05-23 04:13:45] [INFO ] Deduced a trap composed of 75 places in 199 ms of which 3 ms to minimize.
[2024-05-23 04:13:45] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 247 ms
[2024-05-23 04:13:45] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 65 ms.
[2024-05-23 04:13:45] [INFO ] Added : 2 causal constraints over 1 iterations in 151 ms. Result :sat
Minimization took 270 ms.
[2024-05-23 04:13:45] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:13:46] [INFO ] [Real]Absence check using state equation in 158 ms returned sat
[2024-05-23 04:13:46] [INFO ] [Real]Added 95 Read/Feed constraints in 53 ms returned sat
[2024-05-23 04:13:46] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:13:46] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:13:46] [INFO ] [Nat]Absence check using state equation in 150 ms returned sat
[2024-05-23 04:13:46] [INFO ] [Nat]Added 95 Read/Feed constraints in 36 ms returned sat
[2024-05-23 04:13:46] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 66 ms.
[2024-05-23 04:13:46] [INFO ] Added : 2 causal constraints over 1 iterations in 151 ms. Result :sat
Minimization took 268 ms.
[2024-05-23 04:13:47] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:13:47] [INFO ] [Real]Absence check using state equation in 139 ms returned sat
[2024-05-23 04:13:47] [INFO ] [Real]Added 95 Read/Feed constraints in 45 ms returned sat
[2024-05-23 04:13:47] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:13:47] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:13:47] [INFO ] [Nat]Absence check using state equation in 159 ms returned sat
[2024-05-23 04:13:47] [INFO ] [Nat]Added 95 Read/Feed constraints in 38 ms returned sat
[2024-05-23 04:13:47] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 69 ms.
[2024-05-23 04:13:47] [INFO ] Added : 2 causal constraints over 1 iterations in 171 ms. Result :sat
Minimization took 336 ms.
[2024-05-23 04:13:48] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:13:48] [INFO ] [Real]Absence check using state equation in 147 ms returned sat
[2024-05-23 04:13:48] [INFO ] [Real]Added 95 Read/Feed constraints in 41 ms returned sat
[2024-05-23 04:13:48] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:13:48] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:13:48] [INFO ] [Nat]Absence check using state equation in 159 ms returned sat
[2024-05-23 04:13:48] [INFO ] [Nat]Added 95 Read/Feed constraints in 39 ms returned sat
[2024-05-23 04:13:48] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 65 ms.
[2024-05-23 04:13:48] [INFO ] Added : 4 causal constraints over 1 iterations in 154 ms. Result :sat
Minimization took 332 ms.
[2024-05-23 04:13:49] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:13:49] [INFO ] [Real]Absence check using state equation in 149 ms returned sat
[2024-05-23 04:13:49] [INFO ] [Real]Added 95 Read/Feed constraints in 22 ms returned sat
[2024-05-23 04:13:49] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:13:49] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:13:49] [INFO ] [Nat]Absence check using state equation in 161 ms returned sat
[2024-05-23 04:13:49] [INFO ] [Nat]Added 95 Read/Feed constraints in 45 ms returned sat
[2024-05-23 04:13:49] [INFO ] Deduced a trap composed of 100 places in 211 ms of which 3 ms to minimize.
[2024-05-23 04:13:50] [INFO ] Deduced a trap composed of 93 places in 200 ms of which 3 ms to minimize.
[2024-05-23 04:13:50] [INFO ] Deduced a trap composed of 83 places in 195 ms of which 3 ms to minimize.
[2024-05-23 04:13:50] [INFO ] Deduced a trap composed of 78 places in 193 ms of which 3 ms to minimize.
[2024-05-23 04:13:50] [INFO ] Deduced a trap composed of 76 places in 194 ms of which 3 ms to minimize.
[2024-05-23 04:13:51] [INFO ] Deduced a trap composed of 82 places in 206 ms of which 4 ms to minimize.
[2024-05-23 04:13:51] [INFO ] Deduced a trap composed of 135 places in 166 ms of which 3 ms to minimize.
[2024-05-23 04:13:51] [INFO ] Trap strengthening (SAT) tested/added 8/7 trap constraints in 1580 ms
[2024-05-23 04:13:51] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 68 ms.
[2024-05-23 04:13:51] [INFO ] Added : 2 causal constraints over 1 iterations in 167 ms. Result :sat
Minimization took 357 ms.
[2024-05-23 04:13:51] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:13:52] [INFO ] [Real]Absence check using state equation in 143 ms returned sat
[2024-05-23 04:13:52] [INFO ] [Real]Added 95 Read/Feed constraints in 50 ms returned sat
[2024-05-23 04:13:52] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:13:52] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:13:52] [INFO ] [Nat]Absence check using state equation in 145 ms returned sat
[2024-05-23 04:13:52] [INFO ] [Nat]Added 95 Read/Feed constraints in 38 ms returned sat
[2024-05-23 04:13:52] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 66 ms.
[2024-05-23 04:13:52] [INFO ] Added : 2 causal constraints over 1 iterations in 150 ms. Result :sat
Minimization took 270 ms.
[2024-05-23 04:13:52] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:13:53] [INFO ] [Real]Absence check using state equation in 144 ms returned sat
[2024-05-23 04:13:53] [INFO ] [Real]Added 95 Read/Feed constraints in 46 ms returned sat
[2024-05-23 04:13:53] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:13:53] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:13:53] [INFO ] [Nat]Absence check using state equation in 144 ms returned sat
[2024-05-23 04:13:53] [INFO ] [Nat]Added 95 Read/Feed constraints in 41 ms returned sat
[2024-05-23 04:13:53] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 65 ms.
[2024-05-23 04:13:53] [INFO ] Added : 2 causal constraints over 1 iterations in 152 ms. Result :sat
Minimization took 268 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[194, 349, 514, 7239, 4, 462, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[194, 349, 514, 7239, 4, 462, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 7 out of 469 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 469/469 places, 1317/1317 transitions.
Applied a total of 0 rules in 47 ms. Remains 469 /469 variables (removed 0) and now considering 1317/1317 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 49 ms. Remains : 469/469 places, 1317/1317 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 469/469 places, 1317/1317 transitions.
Applied a total of 0 rules in 47 ms. Remains 469 /469 variables (removed 0) and now considering 1317/1317 (removed 0) transitions.
[2024-05-23 04:14:02] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
[2024-05-23 04:14:02] [INFO ] Invariant cache hit.
[2024-05-23 04:14:02] [INFO ] Implicit Places using invariants in 329 ms returned []
[2024-05-23 04:14:02] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
[2024-05-23 04:14:02] [INFO ] Invariant cache hit.
[2024-05-23 04:14:02] [INFO ] State equation strengthened by 95 read => feed constraints.
[2024-05-23 04:14:04] [INFO ] Implicit Places using invariants and state equation in 1454 ms returned []
Implicit Place search using SMT with State Equation took 1785 ms to find 0 implicit places.
[2024-05-23 04:14:04] [INFO ] Redundant transitions in 24 ms returned []
Running 1315 sub problems to find dead transitions.
[2024-05-23 04:14:04] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
[2024-05-23 04:14:04] [INFO ] Invariant cache hit.
[2024-05-23 04:14:04] [INFO ] State equation strengthened by 95 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/468 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
[2024-05-23 04:14:19] [INFO ] Deduced a trap composed of 131 places in 155 ms of which 2 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/468 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
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 468/1232 variables, and 4 constraints, problems are : Problem set: 0 solved, 1315 unsolved in 30025 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/469 constraints, ReadFeed: 0/95 constraints, PredecessorRefiner: 1315/1315 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1315 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/468 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/468 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/468 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
At refinement iteration 3 (OVERLAPS) 763/1231 variables, 468/472 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1231 variables, 95/567 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/1231 variables, 256/823 constraints. Problems are: Problem set: 0 solved, 1315 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1231/1232 variables, and 823 constraints, problems are : Problem set: 0 solved, 1315 unsolved in 30036 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 468/469 constraints, ReadFeed: 95/95 constraints, PredecessorRefiner: 256/1315 constraints, Known Traps: 1/1 constraints]
After SMT, in 64874ms problems are : Problem set: 0 solved, 1315 unsolved
Search for dead transitions found 0 dead transitions in 64885ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 66752 ms. Remains : 469/469 places, 1317/1317 transitions.
[2024-05-23 04:15:08] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
Found an invariant !
This invariant on transitions {224=1, 350=1, 684=1, 755=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {248=1, 374=1, 708=1, 759=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 7) seen :[0, 0, 0, 2147483647, 0, 0, 3]
Current structural bounds on expressions (after cover walk) : Max Seen:[194, 349, 514, +inf, 4, 462, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 04:15:09] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
[2024-05-23 04:15:09] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[194, 349, 514, +inf, 4, 462, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 2640 ms. (378 steps per ms)
FORMULA FunctionPointer-PT-c004-UpperBounds-06 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 6000006 steps (12 resets) in 3956 ms. (1516 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[194, 349, 514, 4, 462, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 04:15:15] [INFO ] Flow matrix only has 763 transitions (discarded 554 similar events)
[2024-05-23 04:15:15] [INFO ] Invariant cache hit.
[2024-05-23 04:15:15] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:15:16] [INFO ] [Real]Absence check using state equation in 157 ms returned sat
[2024-05-23 04:15:16] [INFO ] State equation strengthened by 95 read => feed constraints.
[2024-05-23 04:15:16] [INFO ] [Real]Added 95 Read/Feed constraints in 53 ms returned sat
[2024-05-23 04:15:16] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:15:16] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:15:16] [INFO ] [Nat]Absence check using state equation in 162 ms returned sat
[2024-05-23 04:15:16] [INFO ] [Nat]Added 95 Read/Feed constraints in 27 ms returned sat
[2024-05-23 04:15:16] [INFO ] Deduced a trap composed of 75 places in 222 ms of which 3 ms to minimize.
[2024-05-23 04:15:16] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 277 ms
[2024-05-23 04:15:16] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 78 ms.
[2024-05-23 04:15:16] [INFO ] Added : 2 causal constraints over 1 iterations in 166 ms. Result :sat
Minimization took 276 ms.
[2024-05-23 04:15:17] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:15:17] [INFO ] [Real]Absence check using state equation in 159 ms returned sat
[2024-05-23 04:15:17] [INFO ] [Real]Added 95 Read/Feed constraints in 48 ms returned sat
[2024-05-23 04:15:17] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:15:17] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:15:17] [INFO ] [Nat]Absence check using state equation in 161 ms returned sat
[2024-05-23 04:15:17] [INFO ] [Nat]Added 95 Read/Feed constraints in 37 ms returned sat
[2024-05-23 04:15:17] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 72 ms.
[2024-05-23 04:15:18] [INFO ] Added : 2 causal constraints over 1 iterations in 165 ms. Result :sat
Minimization took 275 ms.
[2024-05-23 04:15:18] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:15:18] [INFO ] [Real]Absence check using state equation in 163 ms returned sat
[2024-05-23 04:15:18] [INFO ] [Real]Added 95 Read/Feed constraints in 49 ms returned sat
[2024-05-23 04:15:18] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:15:18] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:15:18] [INFO ] [Nat]Absence check using state equation in 160 ms returned sat
[2024-05-23 04:15:18] [INFO ] [Nat]Added 95 Read/Feed constraints in 36 ms returned sat
[2024-05-23 04:15:19] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 75 ms.
[2024-05-23 04:15:19] [INFO ] Added : 2 causal constraints over 1 iterations in 171 ms. Result :sat
Minimization took 270 ms.
[2024-05-23 04:15:19] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:15:19] [INFO ] [Real]Absence check using state equation in 163 ms returned sat
[2024-05-23 04:15:19] [INFO ] [Real]Added 95 Read/Feed constraints in 24 ms returned sat
[2024-05-23 04:15:19] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:15:19] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:15:20] [INFO ] [Nat]Absence check using state equation in 162 ms returned sat
[2024-05-23 04:15:20] [INFO ] [Nat]Added 95 Read/Feed constraints in 44 ms returned sat
[2024-05-23 04:15:20] [INFO ] Deduced a trap composed of 100 places in 215 ms of which 3 ms to minimize.
[2024-05-23 04:15:20] [INFO ] Deduced a trap composed of 93 places in 205 ms of which 3 ms to minimize.
[2024-05-23 04:15:20] [INFO ] Deduced a trap composed of 83 places in 205 ms of which 3 ms to minimize.
[2024-05-23 04:15:21] [INFO ] Deduced a trap composed of 78 places in 205 ms of which 4 ms to minimize.
[2024-05-23 04:15:21] [INFO ] Deduced a trap composed of 76 places in 209 ms of which 3 ms to minimize.
[2024-05-23 04:15:21] [INFO ] Deduced a trap composed of 82 places in 206 ms of which 3 ms to minimize.
[2024-05-23 04:15:21] [INFO ] Deduced a trap composed of 135 places in 181 ms of which 3 ms to minimize.
[2024-05-23 04:15:21] [INFO ] Trap strengthening (SAT) tested/added 8/7 trap constraints in 1643 ms
[2024-05-23 04:15:21] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 77 ms.
[2024-05-23 04:15:21] [INFO ] Added : 2 causal constraints over 1 iterations in 172 ms. Result :sat
Minimization took 297 ms.
[2024-05-23 04:15:22] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:15:22] [INFO ] [Real]Absence check using state equation in 158 ms returned sat
[2024-05-23 04:15:22] [INFO ] [Real]Added 95 Read/Feed constraints in 50 ms returned sat
[2024-05-23 04:15:22] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:15:22] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:15:22] [INFO ] [Nat]Absence check using state equation in 159 ms returned sat
[2024-05-23 04:15:22] [INFO ] [Nat]Added 95 Read/Feed constraints in 39 ms returned sat
[2024-05-23 04:15:22] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 76 ms.
[2024-05-23 04:15:22] [INFO ] Added : 2 causal constraints over 1 iterations in 172 ms. Result :sat
Minimization took 274 ms.
[2024-05-23 04:15:23] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:15:23] [INFO ] [Real]Absence check using state equation in 154 ms returned sat
[2024-05-23 04:15:23] [INFO ] [Real]Added 95 Read/Feed constraints in 46 ms returned sat
[2024-05-23 04:15:23] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:15:23] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:15:23] [INFO ] [Nat]Absence check using state equation in 156 ms returned sat
[2024-05-23 04:15:23] [INFO ] [Nat]Added 95 Read/Feed constraints in 43 ms returned sat
[2024-05-23 04:15:23] [INFO ] Computed and/alt/rep : 90/94/83 causal constraints (skipped 678 transitions) in 80 ms.
[2024-05-23 04:15:24] [INFO ] Added : 2 causal constraints over 1 iterations in 172 ms. Result :sat
Minimization took 274 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[194, 349, 514, 4, 462, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[194, 349, 514, 4, 462, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 469 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 469/469 places, 1317/1317 transitions.
Graph (complete) has 2272 edges and 469 vertex of which 468 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.1 ms
Discarding 1 places :
Also discarding 0 output transitions
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 2 place count 467 transition count 1315
Iterating global reduction 0 with 1 rules applied. Total rules applied 3 place count 467 transition count 1315
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 4 place count 466 transition count 1313
Iterating global reduction 0 with 1 rules applied. Total rules applied 5 place count 466 transition count 1313
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 6 place count 465 transition count 1311
Iterating global reduction 0 with 1 rules applied. Total rules applied 7 place count 465 transition count 1311
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 8 place count 464 transition count 1309
Iterating global reduction 0 with 1 rules applied. Total rules applied 9 place count 464 transition count 1309
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 10 place count 463 transition count 1307
Iterating global reduction 0 with 1 rules applied. Total rules applied 11 place count 463 transition count 1307
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 12 place count 462 transition count 1305
Iterating global reduction 0 with 1 rules applied. Total rules applied 13 place count 462 transition count 1305
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 14 place count 461 transition count 1303
Iterating global reduction 0 with 1 rules applied. Total rules applied 15 place count 461 transition count 1303
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 16 place count 460 transition count 1301
Iterating global reduction 0 with 1 rules applied. Total rules applied 17 place count 460 transition count 1301
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 18 place count 459 transition count 1299
Iterating global reduction 0 with 1 rules applied. Total rules applied 19 place count 459 transition count 1299
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 20 place count 458 transition count 1295
Iterating global reduction 0 with 1 rules applied. Total rules applied 21 place count 458 transition count 1295
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 22 place count 457 transition count 1293
Iterating global reduction 0 with 1 rules applied. Total rules applied 23 place count 457 transition count 1293
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 24 place count 456 transition count 1291
Iterating global reduction 0 with 1 rules applied. Total rules applied 25 place count 456 transition count 1291
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 26 place count 455 transition count 1289
Iterating global reduction 0 with 1 rules applied. Total rules applied 27 place count 455 transition count 1289
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 28 place count 454 transition count 1287
Iterating global reduction 0 with 1 rules applied. Total rules applied 29 place count 454 transition count 1287
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 30 place count 453 transition count 1285
Iterating global reduction 0 with 1 rules applied. Total rules applied 31 place count 453 transition count 1285
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 32 place count 452 transition count 1283
Iterating global reduction 0 with 1 rules applied. Total rules applied 33 place count 452 transition count 1283
Applied a total of 33 rules in 260 ms. Remains 452 /469 variables (removed 17) and now considering 1283/1317 (removed 34) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 260 ms. Remains : 452/469 places, 1283/1317 transitions.
[2024-05-23 04:15:33] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
Found an invariant !
This invariant on transitions {250=1, 363=1, 566=1, 730=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 365=1, 696=1, 734=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 6) seen :[0, 0, 0, 0, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[194, 349, 514, 4, 462, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 04:15:33] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
// Phase 1: matrix 739 rows 452 cols
[2024-05-23 04:15:33] [INFO ] Computed 3 invariants in 7 ms
Current structural bounds on expressions (after invariants) : Max Seen:[194, 349, 514, 4, 462, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 2385 ms. (419 steps per ms)
BEST_FIRST walk for 6000006 steps (12 resets) in 3813 ms. (1573 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[194, 349, 514, 4, 503, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 04:15:39] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
[2024-05-23 04:15:39] [INFO ] Invariant cache hit.
[2024-05-23 04:15:39] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:15:39] [INFO ] [Real]Absence check using state equation in 155 ms returned sat
[2024-05-23 04:15:40] [INFO ] State equation strengthened by 90 read => feed constraints.
[2024-05-23 04:15:40] [INFO ] [Real]Added 90 Read/Feed constraints in 33 ms returned sat
[2024-05-23 04:15:40] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:15:40] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:15:40] [INFO ] [Nat]Absence check using state equation in 159 ms returned sat
[2024-05-23 04:15:40] [INFO ] [Nat]Added 90 Read/Feed constraints in 35 ms returned sat
[2024-05-23 04:15:40] [INFO ] Deduced a trap composed of 118 places in 210 ms of which 2 ms to minimize.
[2024-05-23 04:15:40] [INFO ] Deduced a trap composed of 110 places in 206 ms of which 3 ms to minimize.
[2024-05-23 04:15:40] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 493 ms
[2024-05-23 04:15:40] [INFO ] Computed and/alt/rep : 221/1346/221 causal constraints (skipped 516 transitions) in 73 ms.
[2024-05-23 04:15:41] [INFO ] Added : 32 causal constraints over 8 iterations in 428 ms. Result :sat
Minimization took 274 ms.
[2024-05-23 04:15:41] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:15:41] [INFO ] [Real]Absence check using state equation in 157 ms returned sat
[2024-05-23 04:15:41] [INFO ] [Real]Added 90 Read/Feed constraints in 37 ms returned sat
[2024-05-23 04:15:41] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:15:41] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:15:42] [INFO ] [Nat]Absence check using state equation in 163 ms returned sat
[2024-05-23 04:15:42] [INFO ] [Nat]Added 90 Read/Feed constraints in 40 ms returned sat
[2024-05-23 04:15:42] [INFO ] Computed and/alt/rep : 221/1346/221 causal constraints (skipped 516 transitions) in 76 ms.
[2024-05-23 04:15:42] [INFO ] Added : 11 causal constraints over 3 iterations in 272 ms. Result :sat
Minimization took 276 ms.
[2024-05-23 04:15:42] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:15:42] [INFO ] [Real]Absence check using state equation in 148 ms returned sat
[2024-05-23 04:15:43] [INFO ] [Real]Added 90 Read/Feed constraints in 41 ms returned sat
[2024-05-23 04:15:43] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:15:43] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:15:43] [INFO ] [Nat]Absence check using state equation in 156 ms returned sat
[2024-05-23 04:15:43] [INFO ] [Nat]Added 90 Read/Feed constraints in 35 ms returned sat
[2024-05-23 04:15:43] [INFO ] Deduced a trap composed of 133 places in 201 ms of which 3 ms to minimize.
[2024-05-23 04:15:43] [INFO ] Deduced a trap composed of 121 places in 195 ms of which 3 ms to minimize.
[2024-05-23 04:15:43] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 479 ms
[2024-05-23 04:15:43] [INFO ] Computed and/alt/rep : 221/1346/221 causal constraints (skipped 516 transitions) in 71 ms.
[2024-05-23 04:15:44] [INFO ] Added : 27 causal constraints over 7 iterations in 394 ms. Result :sat
Minimization took 316 ms.
[2024-05-23 04:15:44] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:15:44] [INFO ] [Real]Absence check using state equation in 141 ms returned sat
[2024-05-23 04:15:44] [INFO ] [Real]Added 90 Read/Feed constraints in 23 ms returned sat
[2024-05-23 04:15:44] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:15:44] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:15:45] [INFO ] [Nat]Absence check using state equation in 156 ms returned sat
[2024-05-23 04:15:45] [INFO ] [Nat]Added 90 Read/Feed constraints in 62 ms returned sat
[2024-05-23 04:15:45] [INFO ] Deduced a trap composed of 95 places in 204 ms of which 3 ms to minimize.
[2024-05-23 04:15:45] [INFO ] Deduced a trap composed of 90 places in 185 ms of which 2 ms to minimize.
[2024-05-23 04:15:45] [INFO ] Deduced a trap composed of 89 places in 192 ms of which 3 ms to minimize.
[2024-05-23 04:15:45] [INFO ] Deduced a trap composed of 87 places in 187 ms of which 3 ms to minimize.
[2024-05-23 04:15:46] [INFO ] Deduced a trap composed of 219 places in 199 ms of which 3 ms to minimize.
[2024-05-23 04:15:46] [INFO ] Trap strengthening (SAT) tested/added 6/5 trap constraints in 1122 ms
[2024-05-23 04:15:46] [INFO ] Computed and/alt/rep : 221/1346/221 causal constraints (skipped 516 transitions) in 67 ms.
[2024-05-23 04:15:46] [INFO ] Added : 4 causal constraints over 2 iterations in 194 ms. Result :sat
Minimization took 277 ms.
[2024-05-23 04:15:46] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:15:46] [INFO ] [Real]Absence check using state equation in 141 ms returned sat
[2024-05-23 04:15:46] [INFO ] [Real]Added 90 Read/Feed constraints in 33 ms returned sat
[2024-05-23 04:15:46] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:15:47] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:15:47] [INFO ] [Nat]Absence check using state equation in 157 ms returned sat
[2024-05-23 04:15:47] [INFO ] [Nat]Added 90 Read/Feed constraints in 30 ms returned sat
[2024-05-23 04:15:47] [INFO ] Deduced a trap composed of 145 places in 198 ms of which 3 ms to minimize.
[2024-05-23 04:15:47] [INFO ] Deduced a trap composed of 134 places in 196 ms of which 3 ms to minimize.
[2024-05-23 04:15:47] [INFO ] Deduced a trap composed of 130 places in 191 ms of which 3 ms to minimize.
[2024-05-23 04:15:48] [INFO ] Deduced a trap composed of 98 places in 188 ms of which 3 ms to minimize.
[2024-05-23 04:15:48] [INFO ] Deduced a trap composed of 108 places in 189 ms of which 3 ms to minimize.
[2024-05-23 04:15:48] [INFO ] Deduced a trap composed of 85 places in 187 ms of which 3 ms to minimize.
[2024-05-23 04:15:48] [INFO ] Deduced a trap composed of 94 places in 189 ms of which 3 ms to minimize.
[2024-05-23 04:15:48] [INFO ] Deduced a trap composed of 80 places in 186 ms of which 3 ms to minimize.
[2024-05-23 04:15:49] [INFO ] Deduced a trap composed of 87 places in 192 ms of which 3 ms to minimize.
[2024-05-23 04:15:49] [INFO ] Deduced a trap composed of 86 places in 193 ms of which 3 ms to minimize.
[2024-05-23 04:15:49] [INFO ] Deduced a trap composed of 95 places in 194 ms of which 3 ms to minimize.
[2024-05-23 04:15:49] [INFO ] Trap strengthening (SAT) tested/added 12/11 trap constraints in 2380 ms
[2024-05-23 04:15:49] [INFO ] Computed and/alt/rep : 221/1346/221 causal constraints (skipped 516 transitions) in 63 ms.
[2024-05-23 04:15:49] [INFO ] Added : 27 causal constraints over 7 iterations in 364 ms. Result :sat
Minimization took 285 ms.
[2024-05-23 04:15:50] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:15:50] [INFO ] [Real]Absence check using state equation in 151 ms returned sat
[2024-05-23 04:15:50] [INFO ] [Real]Added 90 Read/Feed constraints in 37 ms returned sat
[2024-05-23 04:15:50] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:15:50] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:15:50] [INFO ] [Nat]Absence check using state equation in 155 ms returned sat
[2024-05-23 04:15:50] [INFO ] [Nat]Added 90 Read/Feed constraints in 39 ms returned sat
[2024-05-23 04:15:51] [INFO ] Deduced a trap composed of 144 places in 197 ms of which 3 ms to minimize.
[2024-05-23 04:15:51] [INFO ] Deduced a trap composed of 138 places in 191 ms of which 3 ms to minimize.
[2024-05-23 04:15:51] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 466 ms
[2024-05-23 04:15:51] [INFO ] Computed and/alt/rep : 221/1346/221 causal constraints (skipped 516 transitions) in 74 ms.
[2024-05-23 04:15:51] [INFO ] Added : 29 causal constraints over 7 iterations in 451 ms. Result :sat
Minimization took 273 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[194, 349, 514, 4, 503, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[194, 349, 514, 4, 503, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 452 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 452/452 places, 1283/1283 transitions.
Applied a total of 0 rules in 45 ms. Remains 452 /452 variables (removed 0) and now considering 1283/1283 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 45 ms. Remains : 452/452 places, 1283/1283 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 452/452 places, 1283/1283 transitions.
Applied a total of 0 rules in 45 ms. Remains 452 /452 variables (removed 0) and now considering 1283/1283 (removed 0) transitions.
[2024-05-23 04:15:52] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
[2024-05-23 04:15:52] [INFO ] Invariant cache hit.
[2024-05-23 04:15:52] [INFO ] Implicit Places using invariants in 320 ms returned []
[2024-05-23 04:15:52] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
[2024-05-23 04:15:52] [INFO ] Invariant cache hit.
[2024-05-23 04:15:52] [INFO ] State equation strengthened by 90 read => feed constraints.
[2024-05-23 04:15:53] [INFO ] Implicit Places using invariants and state equation in 1306 ms returned []
Implicit Place search using SMT with State Equation took 1626 ms to find 0 implicit places.
[2024-05-23 04:15:53] [INFO ] Redundant transitions in 21 ms returned []
Running 1281 sub problems to find dead transitions.
[2024-05-23 04:15:53] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
[2024-05-23 04:15:53] [INFO ] Invariant cache hit.
[2024-05-23 04:15:53] [INFO ] State equation strengthened by 90 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/452 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
[2024-05-23 04:16:09] [INFO ] Deduced a trap composed of 131 places in 139 ms of which 3 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/452 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 452/1191 variables, and 4 constraints, problems are : Problem set: 0 solved, 1281 unsolved in 30023 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/452 constraints, ReadFeed: 0/90 constraints, PredecessorRefiner: 1281/1281 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1281 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/452 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/452 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/452 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
At refinement iteration 3 (OVERLAPS) 739/1191 variables, 452/456 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1191 variables, 90/546 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/1191 variables, 1281/1827 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1191/1191 variables, and 1827 constraints, problems are : Problem set: 0 solved, 1281 unsolved in 30035 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 452/452 constraints, ReadFeed: 90/90 constraints, PredecessorRefiner: 1281/1281 constraints, Known Traps: 1/1 constraints]
After SMT, in 65112ms problems are : Problem set: 0 solved, 1281 unsolved
Search for dead transitions found 0 dead transitions in 65125ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 66827 ms. Remains : 452/452 places, 1283/1283 transitions.
[2024-05-23 04:16:58] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
Found an invariant !
This invariant on transitions {250=1, 363=1, 566=1, 730=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 365=1, 696=1, 734=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 6) seen :[0, 0, 3, 0, 4, 3]
Current structural bounds on expressions (after cover walk) : Max Seen:[194, 349, 514, 4, 503, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 04:16:59] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
[2024-05-23 04:16:59] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[194, 349, 514, 4, 503, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000006 steps (2 resets) in 2261 ms. (442 steps per ms)
BEST_FIRST walk for 6000006 steps (12 resets) in 3500 ms. (1713 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[194, 470, 514, 4, 503, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 04:17:04] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
[2024-05-23 04:17:04] [INFO ] Invariant cache hit.
[2024-05-23 04:17:05] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:17:05] [INFO ] [Real]Absence check using state equation in 140 ms returned sat
[2024-05-23 04:17:05] [INFO ] State equation strengthened by 90 read => feed constraints.
[2024-05-23 04:17:05] [INFO ] [Real]Added 90 Read/Feed constraints in 32 ms returned sat
[2024-05-23 04:17:05] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:17:05] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:17:05] [INFO ] [Nat]Absence check using state equation in 146 ms returned sat
[2024-05-23 04:17:05] [INFO ] [Nat]Added 90 Read/Feed constraints in 33 ms returned sat
[2024-05-23 04:17:05] [INFO ] Deduced a trap composed of 118 places in 204 ms of which 3 ms to minimize.
[2024-05-23 04:17:05] [INFO ] Deduced a trap composed of 110 places in 189 ms of which 3 ms to minimize.
[2024-05-23 04:17:05] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 461 ms
[2024-05-23 04:17:06] [INFO ] Computed and/alt/rep : 221/1346/221 causal constraints (skipped 516 transitions) in 66 ms.
[2024-05-23 04:17:06] [INFO ] Added : 32 causal constraints over 8 iterations in 412 ms. Result :sat
Minimization took 273 ms.
[2024-05-23 04:17:06] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:17:06] [INFO ] [Real]Absence check using state equation in 140 ms returned sat
[2024-05-23 04:17:06] [INFO ] [Real]Added 90 Read/Feed constraints in 29 ms returned sat
[2024-05-23 04:17:06] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:17:07] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:17:07] [INFO ] [Nat]Absence check using state equation in 142 ms returned sat
[2024-05-23 04:17:07] [INFO ] [Nat]Added 90 Read/Feed constraints in 37 ms returned sat
[2024-05-23 04:17:07] [INFO ] Computed and/alt/rep : 221/1346/221 causal constraints (skipped 516 transitions) in 69 ms.
[2024-05-23 04:17:07] [INFO ] Added : 11 causal constraints over 3 iterations in 248 ms. Result :sat
Minimization took 267 ms.
[2024-05-23 04:17:07] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:17:07] [INFO ] [Real]Absence check using state equation in 142 ms returned sat
[2024-05-23 04:17:08] [INFO ] [Real]Added 90 Read/Feed constraints in 39 ms returned sat
[2024-05-23 04:17:08] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:17:08] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:17:08] [INFO ] [Nat]Absence check using state equation in 137 ms returned sat
[2024-05-23 04:17:08] [INFO ] [Nat]Added 90 Read/Feed constraints in 32 ms returned sat
[2024-05-23 04:17:08] [INFO ] Deduced a trap composed of 133 places in 192 ms of which 2 ms to minimize.
[2024-05-23 04:17:08] [INFO ] Deduced a trap composed of 121 places in 192 ms of which 3 ms to minimize.
[2024-05-23 04:17:08] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 445 ms
[2024-05-23 04:17:08] [INFO ] Computed and/alt/rep : 221/1346/221 causal constraints (skipped 516 transitions) in 63 ms.
[2024-05-23 04:17:09] [INFO ] Added : 27 causal constraints over 7 iterations in 367 ms. Result :sat
Minimization took 270 ms.
[2024-05-23 04:17:09] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:17:09] [INFO ] [Real]Absence check using state equation in 141 ms returned sat
[2024-05-23 04:17:09] [INFO ] [Real]Added 90 Read/Feed constraints in 23 ms returned sat
[2024-05-23 04:17:09] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:17:09] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:17:09] [INFO ] [Nat]Absence check using state equation in 143 ms returned sat
[2024-05-23 04:17:09] [INFO ] [Nat]Added 90 Read/Feed constraints in 60 ms returned sat
[2024-05-23 04:17:10] [INFO ] Deduced a trap composed of 95 places in 203 ms of which 3 ms to minimize.
[2024-05-23 04:17:10] [INFO ] Deduced a trap composed of 90 places in 188 ms of which 3 ms to minimize.
[2024-05-23 04:17:10] [INFO ] Deduced a trap composed of 89 places in 184 ms of which 4 ms to minimize.
[2024-05-23 04:17:10] [INFO ] Deduced a trap composed of 87 places in 184 ms of which 3 ms to minimize.
[2024-05-23 04:17:10] [INFO ] Deduced a trap composed of 219 places in 193 ms of which 3 ms to minimize.
[2024-05-23 04:17:10] [INFO ] Trap strengthening (SAT) tested/added 6/5 trap constraints in 1085 ms
[2024-05-23 04:17:11] [INFO ] Computed and/alt/rep : 221/1346/221 causal constraints (skipped 516 transitions) in 64 ms.
[2024-05-23 04:17:11] [INFO ] Added : 4 causal constraints over 2 iterations in 188 ms. Result :sat
Minimization took 267 ms.
[2024-05-23 04:17:11] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:17:11] [INFO ] [Real]Absence check using state equation in 139 ms returned sat
[2024-05-23 04:17:11] [INFO ] [Real]Added 90 Read/Feed constraints in 36 ms returned sat
[2024-05-23 04:17:11] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:17:11] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:17:11] [INFO ] [Nat]Absence check using state equation in 143 ms returned sat
[2024-05-23 04:17:11] [INFO ] [Nat]Added 90 Read/Feed constraints in 37 ms returned sat
[2024-05-23 04:17:12] [INFO ] Deduced a trap composed of 145 places in 208 ms of which 3 ms to minimize.
[2024-05-23 04:17:12] [INFO ] Deduced a trap composed of 134 places in 202 ms of which 3 ms to minimize.
[2024-05-23 04:17:12] [INFO ] Deduced a trap composed of 130 places in 197 ms of which 3 ms to minimize.
[2024-05-23 04:17:12] [INFO ] Deduced a trap composed of 98 places in 189 ms of which 3 ms to minimize.
[2024-05-23 04:17:13] [INFO ] Deduced a trap composed of 108 places in 200 ms of which 3 ms to minimize.
[2024-05-23 04:17:13] [INFO ] Deduced a trap composed of 85 places in 188 ms of which 3 ms to minimize.
[2024-05-23 04:17:13] [INFO ] Deduced a trap composed of 94 places in 189 ms of which 3 ms to minimize.
[2024-05-23 04:17:13] [INFO ] Deduced a trap composed of 80 places in 191 ms of which 4 ms to minimize.
[2024-05-23 04:17:13] [INFO ] Deduced a trap composed of 87 places in 190 ms of which 3 ms to minimize.
[2024-05-23 04:17:14] [INFO ] Deduced a trap composed of 86 places in 187 ms of which 3 ms to minimize.
[2024-05-23 04:17:14] [INFO ] Deduced a trap composed of 95 places in 191 ms of which 3 ms to minimize.
[2024-05-23 04:17:14] [INFO ] Trap strengthening (SAT) tested/added 12/11 trap constraints in 2393 ms
[2024-05-23 04:17:14] [INFO ] Computed and/alt/rep : 221/1346/221 causal constraints (skipped 516 transitions) in 62 ms.
[2024-05-23 04:17:14] [INFO ] Added : 27 causal constraints over 7 iterations in 358 ms. Result :sat
Minimization took 279 ms.
[2024-05-23 04:17:15] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:17:15] [INFO ] [Real]Absence check using state equation in 147 ms returned sat
[2024-05-23 04:17:15] [INFO ] [Real]Added 90 Read/Feed constraints in 33 ms returned sat
[2024-05-23 04:17:15] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:17:15] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:17:15] [INFO ] [Nat]Absence check using state equation in 144 ms returned sat
[2024-05-23 04:17:15] [INFO ] [Nat]Added 90 Read/Feed constraints in 38 ms returned sat
[2024-05-23 04:17:15] [INFO ] Deduced a trap composed of 144 places in 185 ms of which 3 ms to minimize.
[2024-05-23 04:17:16] [INFO ] Deduced a trap composed of 138 places in 187 ms of which 3 ms to minimize.
[2024-05-23 04:17:16] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 446 ms
[2024-05-23 04:17:16] [INFO ] Computed and/alt/rep : 221/1346/221 causal constraints (skipped 516 transitions) in 78 ms.
[2024-05-23 04:17:16] [INFO ] Added : 29 causal constraints over 7 iterations in 455 ms. Result :sat
Minimization took 274 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[194, 470, 514, 4, 503, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[194, 470, 514, 4, 503, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 452 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 452/452 places, 1283/1283 transitions.
Applied a total of 0 rules in 48 ms. Remains 452 /452 variables (removed 0) and now considering 1283/1283 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 48 ms. Remains : 452/452 places, 1283/1283 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 452/452 places, 1283/1283 transitions.
Applied a total of 0 rules in 45 ms. Remains 452 /452 variables (removed 0) and now considering 1283/1283 (removed 0) transitions.
[2024-05-23 04:17:16] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
[2024-05-23 04:17:16] [INFO ] Invariant cache hit.
[2024-05-23 04:17:17] [INFO ] Implicit Places using invariants in 306 ms returned []
[2024-05-23 04:17:17] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
[2024-05-23 04:17:17] [INFO ] Invariant cache hit.
[2024-05-23 04:17:17] [INFO ] State equation strengthened by 90 read => feed constraints.
[2024-05-23 04:17:18] [INFO ] Implicit Places using invariants and state equation in 1277 ms returned []
Implicit Place search using SMT with State Equation took 1584 ms to find 0 implicit places.
[2024-05-23 04:17:18] [INFO ] Redundant transitions in 20 ms returned []
Running 1281 sub problems to find dead transitions.
[2024-05-23 04:17:18] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
[2024-05-23 04:17:18] [INFO ] Invariant cache hit.
[2024-05-23 04:17:18] [INFO ] State equation strengthened by 90 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/452 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
[2024-05-23 04:17:33] [INFO ] Deduced a trap composed of 131 places in 131 ms of which 2 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/452 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 452/1191 variables, and 4 constraints, problems are : Problem set: 0 solved, 1281 unsolved in 30022 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/452 constraints, ReadFeed: 0/90 constraints, PredecessorRefiner: 1281/1281 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1281 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/452 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/452 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/452 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
At refinement iteration 3 (OVERLAPS) 739/1191 variables, 452/456 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1191 variables, 90/546 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/1191 variables, 1281/1827 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1191/1191 variables, and 1827 constraints, problems are : Problem set: 0 solved, 1281 unsolved in 30031 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 452/452 constraints, ReadFeed: 90/90 constraints, PredecessorRefiner: 1281/1281 constraints, Known Traps: 1/1 constraints]
After SMT, in 64324ms problems are : Problem set: 0 solved, 1281 unsolved
Search for dead transitions found 0 dead transitions in 64334ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 65990 ms. Remains : 452/452 places, 1283/1283 transitions.
[2024-05-23 04:18:22] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
Found an invariant !
This invariant on transitions {250=1, 363=1, 566=1, 730=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 365=1, 696=1, 734=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 41 ms. (steps per millisecond=243 ) properties (out of 6) seen :[0, 0, 0, 0, 0, 2]
Current structural bounds on expressions (after cover walk) : Max Seen:[194, 470, 514, 4, 503, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 04:18:23] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
[2024-05-23 04:18:23] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[194, 470, 514, 4, 503, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 2300 ms. (434 steps per ms)
BEST_FIRST walk for 6000006 steps (12 resets) in 3491 ms. (1718 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[198, 470, 514, 4, 503, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 04:18:28] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
[2024-05-23 04:18:28] [INFO ] Invariant cache hit.
[2024-05-23 04:18:28] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:18:29] [INFO ] [Real]Absence check using state equation in 143 ms returned sat
[2024-05-23 04:18:29] [INFO ] State equation strengthened by 90 read => feed constraints.
[2024-05-23 04:18:29] [INFO ] [Real]Added 90 Read/Feed constraints in 34 ms returned sat
[2024-05-23 04:18:29] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:18:29] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:18:29] [INFO ] [Nat]Absence check using state equation in 145 ms returned sat
[2024-05-23 04:18:29] [INFO ] [Nat]Added 90 Read/Feed constraints in 34 ms returned sat
[2024-05-23 04:18:29] [INFO ] Deduced a trap composed of 118 places in 198 ms of which 3 ms to minimize.
[2024-05-23 04:18:29] [INFO ] Deduced a trap composed of 110 places in 188 ms of which 3 ms to minimize.
[2024-05-23 04:18:29] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 460 ms
[2024-05-23 04:18:29] [INFO ] Computed and/alt/rep : 221/1346/221 causal constraints (skipped 516 transitions) in 63 ms.
[2024-05-23 04:18:30] [INFO ] Added : 32 causal constraints over 8 iterations in 414 ms. Result :sat
Minimization took 275 ms.
[2024-05-23 04:18:30] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:18:30] [INFO ] [Real]Absence check using state equation in 139 ms returned sat
[2024-05-23 04:18:30] [INFO ] [Real]Added 90 Read/Feed constraints in 30 ms returned sat
[2024-05-23 04:18:30] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:18:30] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:18:31] [INFO ] [Nat]Absence check using state equation in 141 ms returned sat
[2024-05-23 04:18:31] [INFO ] [Nat]Added 90 Read/Feed constraints in 38 ms returned sat
[2024-05-23 04:18:31] [INFO ] Computed and/alt/rep : 221/1346/221 causal constraints (skipped 516 transitions) in 63 ms.
[2024-05-23 04:18:31] [INFO ] Added : 11 causal constraints over 3 iterations in 249 ms. Result :sat
Minimization took 260 ms.
[2024-05-23 04:18:31] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:18:31] [INFO ] [Real]Absence check using state equation in 135 ms returned sat
[2024-05-23 04:18:31] [INFO ] [Real]Added 90 Read/Feed constraints in 39 ms returned sat
[2024-05-23 04:18:31] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:18:32] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:18:32] [INFO ] [Nat]Absence check using state equation in 142 ms returned sat
[2024-05-23 04:18:32] [INFO ] [Nat]Added 90 Read/Feed constraints in 33 ms returned sat
[2024-05-23 04:18:32] [INFO ] Deduced a trap composed of 133 places in 197 ms of which 3 ms to minimize.
[2024-05-23 04:18:32] [INFO ] Deduced a trap composed of 121 places in 189 ms of which 4 ms to minimize.
[2024-05-23 04:18:32] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 451 ms
[2024-05-23 04:18:32] [INFO ] Computed and/alt/rep : 221/1346/221 causal constraints (skipped 516 transitions) in 65 ms.
[2024-05-23 04:18:32] [INFO ] Added : 27 causal constraints over 7 iterations in 362 ms. Result :sat
Minimization took 268 ms.
[2024-05-23 04:18:33] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:18:33] [INFO ] [Real]Absence check using state equation in 137 ms returned sat
[2024-05-23 04:18:33] [INFO ] [Real]Added 90 Read/Feed constraints in 23 ms returned sat
[2024-05-23 04:18:33] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:18:33] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:18:33] [INFO ] [Nat]Absence check using state equation in 137 ms returned sat
[2024-05-23 04:18:33] [INFO ] [Nat]Added 90 Read/Feed constraints in 60 ms returned sat
[2024-05-23 04:18:34] [INFO ] Deduced a trap composed of 95 places in 194 ms of which 3 ms to minimize.
[2024-05-23 04:18:34] [INFO ] Deduced a trap composed of 90 places in 182 ms of which 3 ms to minimize.
[2024-05-23 04:18:34] [INFO ] Deduced a trap composed of 89 places in 185 ms of which 2 ms to minimize.
[2024-05-23 04:18:34] [INFO ] Deduced a trap composed of 87 places in 185 ms of which 3 ms to minimize.
[2024-05-23 04:18:34] [INFO ] Deduced a trap composed of 219 places in 184 ms of which 3 ms to minimize.
[2024-05-23 04:18:34] [INFO ] Trap strengthening (SAT) tested/added 6/5 trap constraints in 1063 ms
[2024-05-23 04:18:34] [INFO ] Computed and/alt/rep : 221/1346/221 causal constraints (skipped 516 transitions) in 63 ms.
[2024-05-23 04:18:35] [INFO ] Added : 4 causal constraints over 2 iterations in 174 ms. Result :sat
Minimization took 262 ms.
[2024-05-23 04:18:35] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:18:35] [INFO ] [Real]Absence check using state equation in 137 ms returned sat
[2024-05-23 04:18:35] [INFO ] [Real]Added 90 Read/Feed constraints in 33 ms returned sat
[2024-05-23 04:18:35] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:18:35] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:18:35] [INFO ] [Nat]Absence check using state equation in 143 ms returned sat
[2024-05-23 04:18:35] [INFO ] [Nat]Added 90 Read/Feed constraints in 28 ms returned sat
[2024-05-23 04:18:36] [INFO ] Deduced a trap composed of 145 places in 192 ms of which 3 ms to minimize.
[2024-05-23 04:18:36] [INFO ] Deduced a trap composed of 134 places in 191 ms of which 3 ms to minimize.
[2024-05-23 04:18:36] [INFO ] Deduced a trap composed of 130 places in 191 ms of which 3 ms to minimize.
[2024-05-23 04:18:36] [INFO ] Deduced a trap composed of 98 places in 187 ms of which 2 ms to minimize.
[2024-05-23 04:18:36] [INFO ] Deduced a trap composed of 108 places in 191 ms of which 3 ms to minimize.
[2024-05-23 04:18:37] [INFO ] Deduced a trap composed of 85 places in 192 ms of which 2 ms to minimize.
[2024-05-23 04:18:37] [INFO ] Deduced a trap composed of 94 places in 184 ms of which 3 ms to minimize.
[2024-05-23 04:18:37] [INFO ] Deduced a trap composed of 80 places in 178 ms of which 3 ms to minimize.
[2024-05-23 04:18:37] [INFO ] Deduced a trap composed of 87 places in 179 ms of which 3 ms to minimize.
[2024-05-23 04:18:37] [INFO ] Deduced a trap composed of 86 places in 186 ms of which 3 ms to minimize.
[2024-05-23 04:18:38] [INFO ] Deduced a trap composed of 95 places in 188 ms of which 3 ms to minimize.
[2024-05-23 04:18:38] [INFO ] Trap strengthening (SAT) tested/added 12/11 trap constraints in 2325 ms
[2024-05-23 04:18:38] [INFO ] Computed and/alt/rep : 221/1346/221 causal constraints (skipped 516 transitions) in 62 ms.
[2024-05-23 04:18:38] [INFO ] Added : 27 causal constraints over 7 iterations in 363 ms. Result :sat
Minimization took 281 ms.
[2024-05-23 04:18:38] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:18:39] [INFO ] [Real]Absence check using state equation in 139 ms returned sat
[2024-05-23 04:18:39] [INFO ] [Real]Added 90 Read/Feed constraints in 32 ms returned sat
[2024-05-23 04:18:39] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:18:39] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:18:39] [INFO ] [Nat]Absence check using state equation in 145 ms returned sat
[2024-05-23 04:18:39] [INFO ] [Nat]Added 90 Read/Feed constraints in 38 ms returned sat
[2024-05-23 04:18:39] [INFO ] Deduced a trap composed of 144 places in 182 ms of which 3 ms to minimize.
[2024-05-23 04:18:39] [INFO ] Deduced a trap composed of 138 places in 181 ms of which 3 ms to minimize.
[2024-05-23 04:18:39] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 441 ms
[2024-05-23 04:18:39] [INFO ] Computed and/alt/rep : 221/1346/221 causal constraints (skipped 516 transitions) in 63 ms.
[2024-05-23 04:18:40] [INFO ] Added : 29 causal constraints over 7 iterations in 428 ms. Result :sat
Minimization took 274 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[198, 470, 514, 4, 503, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[198, 470, 514, 4, 503, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 452 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 452/452 places, 1283/1283 transitions.
Applied a total of 0 rules in 46 ms. Remains 452 /452 variables (removed 0) and now considering 1283/1283 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 46 ms. Remains : 452/452 places, 1283/1283 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 452/452 places, 1283/1283 transitions.
Applied a total of 0 rules in 45 ms. Remains 452 /452 variables (removed 0) and now considering 1283/1283 (removed 0) transitions.
[2024-05-23 04:18:40] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
[2024-05-23 04:18:40] [INFO ] Invariant cache hit.
[2024-05-23 04:18:40] [INFO ] Implicit Places using invariants in 298 ms returned []
[2024-05-23 04:18:40] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
[2024-05-23 04:18:40] [INFO ] Invariant cache hit.
[2024-05-23 04:18:41] [INFO ] State equation strengthened by 90 read => feed constraints.
[2024-05-23 04:18:42] [INFO ] Implicit Places using invariants and state equation in 1264 ms returned []
Implicit Place search using SMT with State Equation took 1562 ms to find 0 implicit places.
[2024-05-23 04:18:42] [INFO ] Redundant transitions in 22 ms returned []
Running 1281 sub problems to find dead transitions.
[2024-05-23 04:18:42] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
[2024-05-23 04:18:42] [INFO ] Invariant cache hit.
[2024-05-23 04:18:42] [INFO ] State equation strengthened by 90 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/452 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
[2024-05-23 04:18:56] [INFO ] Deduced a trap composed of 131 places in 143 ms of which 2 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/452 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 452/1191 variables, and 4 constraints, problems are : Problem set: 0 solved, 1281 unsolved in 30025 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/452 constraints, ReadFeed: 0/90 constraints, PredecessorRefiner: 1281/1281 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1281 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/452 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/452 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/452 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
At refinement iteration 3 (OVERLAPS) 739/1191 variables, 452/456 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1191 variables, 90/546 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/1191 variables, 1281/1827 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1191/1191 variables, and 1827 constraints, problems are : Problem set: 0 solved, 1281 unsolved in 30025 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 452/452 constraints, ReadFeed: 90/90 constraints, PredecessorRefiner: 1281/1281 constraints, Known Traps: 1/1 constraints]
After SMT, in 64335ms problems are : Problem set: 0 solved, 1281 unsolved
Search for dead transitions found 0 dead transitions in 64346ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 65981 ms. Remains : 452/452 places, 1283/1283 transitions.
[2024-05-23 04:19:46] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
Found an invariant !
This invariant on transitions {250=1, 363=1, 566=1, 730=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 365=1, 696=1, 734=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 6) seen :[0, 2, 0, 0, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[198, 470, 514, 4, 503, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 04:19:46] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
[2024-05-23 04:19:46] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[198, 470, 514, 4, 503, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 2178 ms. (458 steps per ms)
BEST_FIRST walk for 6000006 steps (12 resets) in 3495 ms. (1716 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[198, 470, 514, 4, 503, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 04:19:52] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
[2024-05-23 04:19:52] [INFO ] Invariant cache hit.
[2024-05-23 04:19:52] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:19:52] [INFO ] [Real]Absence check using state equation in 138 ms returned sat
[2024-05-23 04:19:52] [INFO ] State equation strengthened by 90 read => feed constraints.
[2024-05-23 04:19:52] [INFO ] [Real]Added 90 Read/Feed constraints in 31 ms returned sat
[2024-05-23 04:19:52] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:19:52] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:19:52] [INFO ] [Nat]Absence check using state equation in 141 ms returned sat
[2024-05-23 04:19:53] [INFO ] [Nat]Added 90 Read/Feed constraints in 32 ms returned sat
[2024-05-23 04:19:53] [INFO ] Deduced a trap composed of 118 places in 208 ms of which 2 ms to minimize.
[2024-05-23 04:19:53] [INFO ] Deduced a trap composed of 110 places in 189 ms of which 3 ms to minimize.
[2024-05-23 04:19:53] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 469 ms
[2024-05-23 04:19:53] [INFO ] Computed and/alt/rep : 221/1346/221 causal constraints (skipped 516 transitions) in 63 ms.
[2024-05-23 04:19:53] [INFO ] Added : 32 causal constraints over 8 iterations in 408 ms. Result :sat
Minimization took 273 ms.
[2024-05-23 04:19:54] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:19:54] [INFO ] [Real]Absence check using state equation in 137 ms returned sat
[2024-05-23 04:19:54] [INFO ] [Real]Added 90 Read/Feed constraints in 32 ms returned sat
[2024-05-23 04:19:54] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:19:54] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:19:54] [INFO ] [Nat]Absence check using state equation in 151 ms returned sat
[2024-05-23 04:19:54] [INFO ] [Nat]Added 90 Read/Feed constraints in 37 ms returned sat
[2024-05-23 04:19:54] [INFO ] Computed and/alt/rep : 221/1346/221 causal constraints (skipped 516 transitions) in 68 ms.
[2024-05-23 04:19:54] [INFO ] Added : 11 causal constraints over 3 iterations in 251 ms. Result :sat
Minimization took 262 ms.
[2024-05-23 04:19:55] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:19:55] [INFO ] [Real]Absence check using state equation in 135 ms returned sat
[2024-05-23 04:19:55] [INFO ] [Real]Added 90 Read/Feed constraints in 39 ms returned sat
[2024-05-23 04:19:55] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:19:55] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:19:55] [INFO ] [Nat]Absence check using state equation in 142 ms returned sat
[2024-05-23 04:19:55] [INFO ] [Nat]Added 90 Read/Feed constraints in 34 ms returned sat
[2024-05-23 04:19:55] [INFO ] Deduced a trap composed of 133 places in 189 ms of which 3 ms to minimize.
[2024-05-23 04:19:56] [INFO ] Deduced a trap composed of 121 places in 186 ms of which 3 ms to minimize.
[2024-05-23 04:19:56] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 445 ms
[2024-05-23 04:19:56] [INFO ] Computed and/alt/rep : 221/1346/221 causal constraints (skipped 516 transitions) in 64 ms.
[2024-05-23 04:19:56] [INFO ] Added : 27 causal constraints over 7 iterations in 391 ms. Result :sat
Minimization took 270 ms.
[2024-05-23 04:19:56] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:19:57] [INFO ] [Real]Absence check using state equation in 143 ms returned sat
[2024-05-23 04:19:57] [INFO ] [Real]Added 90 Read/Feed constraints in 23 ms returned sat
[2024-05-23 04:19:57] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:19:57] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:19:57] [INFO ] [Nat]Absence check using state equation in 147 ms returned sat
[2024-05-23 04:19:57] [INFO ] [Nat]Added 90 Read/Feed constraints in 59 ms returned sat
[2024-05-23 04:19:57] [INFO ] Deduced a trap composed of 95 places in 191 ms of which 3 ms to minimize.
[2024-05-23 04:19:57] [INFO ] Deduced a trap composed of 90 places in 196 ms of which 3 ms to minimize.
[2024-05-23 04:19:58] [INFO ] Deduced a trap composed of 89 places in 188 ms of which 3 ms to minimize.
[2024-05-23 04:19:58] [INFO ] Deduced a trap composed of 87 places in 182 ms of which 3 ms to minimize.
[2024-05-23 04:19:58] [INFO ] Deduced a trap composed of 219 places in 191 ms of which 3 ms to minimize.
[2024-05-23 04:19:58] [INFO ] Trap strengthening (SAT) tested/added 6/5 trap constraints in 1077 ms
[2024-05-23 04:19:58] [INFO ] Computed and/alt/rep : 221/1346/221 causal constraints (skipped 516 transitions) in 64 ms.
[2024-05-23 04:19:58] [INFO ] Added : 4 causal constraints over 2 iterations in 198 ms. Result :sat
Minimization took 261 ms.
[2024-05-23 04:19:59] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:19:59] [INFO ] [Real]Absence check using state equation in 145 ms returned sat
[2024-05-23 04:19:59] [INFO ] [Real]Added 90 Read/Feed constraints in 34 ms returned sat
[2024-05-23 04:19:59] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:19:59] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:19:59] [INFO ] [Nat]Absence check using state equation in 145 ms returned sat
[2024-05-23 04:19:59] [INFO ] [Nat]Added 90 Read/Feed constraints in 29 ms returned sat
[2024-05-23 04:19:59] [INFO ] Deduced a trap composed of 145 places in 200 ms of which 2 ms to minimize.
[2024-05-23 04:19:59] [INFO ] Deduced a trap composed of 134 places in 190 ms of which 2 ms to minimize.
[2024-05-23 04:20:00] [INFO ] Deduced a trap composed of 130 places in 196 ms of which 3 ms to minimize.
[2024-05-23 04:20:00] [INFO ] Deduced a trap composed of 98 places in 190 ms of which 3 ms to minimize.
[2024-05-23 04:20:00] [INFO ] Deduced a trap composed of 108 places in 192 ms of which 3 ms to minimize.
[2024-05-23 04:20:00] [INFO ] Deduced a trap composed of 85 places in 188 ms of which 2 ms to minimize.
[2024-05-23 04:20:01] [INFO ] Deduced a trap composed of 94 places in 194 ms of which 3 ms to minimize.
[2024-05-23 04:20:01] [INFO ] Deduced a trap composed of 80 places in 194 ms of which 3 ms to minimize.
[2024-05-23 04:20:01] [INFO ] Deduced a trap composed of 87 places in 187 ms of which 3 ms to minimize.
[2024-05-23 04:20:01] [INFO ] Deduced a trap composed of 86 places in 184 ms of which 3 ms to minimize.
[2024-05-23 04:20:01] [INFO ] Deduced a trap composed of 95 places in 188 ms of which 3 ms to minimize.
[2024-05-23 04:20:01] [INFO ] Trap strengthening (SAT) tested/added 12/11 trap constraints in 2353 ms
[2024-05-23 04:20:01] [INFO ] Computed and/alt/rep : 221/1346/221 causal constraints (skipped 516 transitions) in 62 ms.
[2024-05-23 04:20:02] [INFO ] Added : 27 causal constraints over 7 iterations in 366 ms. Result :sat
Minimization took 274 ms.
[2024-05-23 04:20:02] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:20:02] [INFO ] [Real]Absence check using state equation in 136 ms returned sat
[2024-05-23 04:20:02] [INFO ] [Real]Added 90 Read/Feed constraints in 31 ms returned sat
[2024-05-23 04:20:02] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:20:02] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:20:03] [INFO ] [Nat]Absence check using state equation in 142 ms returned sat
[2024-05-23 04:20:03] [INFO ] [Nat]Added 90 Read/Feed constraints in 37 ms returned sat
[2024-05-23 04:20:03] [INFO ] Deduced a trap composed of 144 places in 182 ms of which 3 ms to minimize.
[2024-05-23 04:20:03] [INFO ] Deduced a trap composed of 138 places in 175 ms of which 2 ms to minimize.
[2024-05-23 04:20:03] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 435 ms
[2024-05-23 04:20:03] [INFO ] Computed and/alt/rep : 221/1346/221 causal constraints (skipped 516 transitions) in 61 ms.
[2024-05-23 04:20:03] [INFO ] Added : 29 causal constraints over 7 iterations in 428 ms. Result :sat
Minimization took 270 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[198, 470, 514, 4, 503, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[198, 470, 514, 4, 503, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 452 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 452/452 places, 1283/1283 transitions.
Applied a total of 0 rules in 45 ms. Remains 452 /452 variables (removed 0) and now considering 1283/1283 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 45 ms. Remains : 452/452 places, 1283/1283 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 452/452 places, 1283/1283 transitions.
Applied a total of 0 rules in 45 ms. Remains 452 /452 variables (removed 0) and now considering 1283/1283 (removed 0) transitions.
[2024-05-23 04:20:04] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
[2024-05-23 04:20:04] [INFO ] Invariant cache hit.
[2024-05-23 04:20:04] [INFO ] Implicit Places using invariants in 304 ms returned []
[2024-05-23 04:20:04] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
[2024-05-23 04:20:04] [INFO ] Invariant cache hit.
[2024-05-23 04:20:04] [INFO ] State equation strengthened by 90 read => feed constraints.
[2024-05-23 04:20:05] [INFO ] Implicit Places using invariants and state equation in 1235 ms returned []
Implicit Place search using SMT with State Equation took 1540 ms to find 0 implicit places.
[2024-05-23 04:20:05] [INFO ] Redundant transitions in 21 ms returned []
Running 1281 sub problems to find dead transitions.
[2024-05-23 04:20:05] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
[2024-05-23 04:20:05] [INFO ] Invariant cache hit.
[2024-05-23 04:20:05] [INFO ] State equation strengthened by 90 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/452 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
[2024-05-23 04:20:20] [INFO ] Deduced a trap composed of 131 places in 142 ms of which 2 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/452 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 452/1191 variables, and 4 constraints, problems are : Problem set: 0 solved, 1281 unsolved in 30022 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/452 constraints, ReadFeed: 0/90 constraints, PredecessorRefiner: 1281/1281 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1281 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/452 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/452 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/452 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
At refinement iteration 3 (OVERLAPS) 739/1191 variables, 452/456 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1191 variables, 90/546 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/1191 variables, 1281/1827 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1191/1191 variables, and 1827 constraints, problems are : Problem set: 0 solved, 1281 unsolved in 30029 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 452/452 constraints, ReadFeed: 90/90 constraints, PredecessorRefiner: 1281/1281 constraints, Known Traps: 1/1 constraints]
After SMT, in 64238ms problems are : Problem set: 0 solved, 1281 unsolved
Search for dead transitions found 0 dead transitions in 64249ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 65861 ms. Remains : 452/452 places, 1283/1283 transitions.
[2024-05-23 04:21:10] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
Found an invariant !
This invariant on transitions {250=1, 363=1, 566=1, 730=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 365=1, 696=1, 734=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 32 ms. (steps per millisecond=312 ) properties (out of 6) seen :[0, 0, 3, 0, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[198, 470, 514, 4, 503, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 40007 steps (8 resets) in 1170 ms. (34 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40004 steps (8 resets) in 231 ms. (172 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40004 steps (8 resets) in 149 ms. (266 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40004 steps (8 resets) in 152 ms. (261 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40004 steps (8 resets) in 71 ms. (555 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40003 steps (8 resets) in 141 ms. (281 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40004 steps (8 resets) in 95 ms. (416 steps per ms) remains 6/6 properties
Interrupted probabilistic random walk after 248550 steps, run timeout after 3001 ms. (steps per millisecond=82 ) properties seen :0 out of 6
Probabilistic random walk after 248550 steps, saw 152422 distinct states, run finished after 3004 ms. (steps per millisecond=82 ) properties seen :0
[2024-05-23 04:21:14] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
[2024-05-23 04:21:14] [INFO ] Invariant cache hit.
[2024-05-23 04:21:14] [INFO ] State equation strengthened by 90 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/6 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 1 (OVERLAPS) 15/21 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/21 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 3 (OVERLAPS) 394/415 variables, 16/22 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/415 variables, 3/25 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/415 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 6 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 14/429 variables, 2/27 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/429 variables, 4/31 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/429 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 9 (OVERLAPS) 628/1057 variables, 354/385 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/1057 variables, 87/472 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/1057 variables, 0/472 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 12 (OVERLAPS) 62/1119 variables, 1/473 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/1119 variables, 0/473 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 14 (OVERLAPS) 71/1190 variables, 71/544 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/1190 variables, 0/544 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 16 (OVERLAPS) 1/1191 variables, 1/545 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/1191 variables, 0/545 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 18 (OVERLAPS) 0/1191 variables, 0/545 constraints. Problems are: Problem set: 0 solved, 6 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1191/1191 variables, and 545 constraints, problems are : Problem set: 0 solved, 6 unsolved in 1076 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 452/452 constraints, ReadFeed: 90/90 constraints, PredecessorRefiner: 6/6 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 6 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/6 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 1 (OVERLAPS) 15/21 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/21 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 3 (OVERLAPS) 394/415 variables, 16/22 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/415 variables, 3/25 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/415 variables, 6/31 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/415 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 7 (OVERLAPS) 14/429 variables, 2/33 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/429 variables, 4/37 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/429 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 10 (OVERLAPS) 628/1057 variables, 354/391 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/1057 variables, 87/478 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/1057 variables, 0/478 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 13 (OVERLAPS) 62/1119 variables, 1/479 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/1119 variables, 0/479 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 15 (OVERLAPS) 71/1190 variables, 71/550 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/1190 variables, 0/550 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 17 (OVERLAPS) 1/1191 variables, 1/551 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/1191 variables, 0/551 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 19 (OVERLAPS) 0/1191 variables, 0/551 constraints. Problems are: Problem set: 0 solved, 6 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1191/1191 variables, and 551 constraints, problems are : Problem set: 0 solved, 6 unsolved in 988 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 452/452 constraints, ReadFeed: 90/90 constraints, PredecessorRefiner: 6/6 constraints, Known Traps: 0/0 constraints]
After SMT, in 2083ms problems are : Problem set: 0 solved, 6 unsolved
Fused 6 Parikh solutions to 3 different solutions.
Parikh walk visited 0 properties in 30001 ms.
Support contains 6 out of 452 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 452/452 places, 1283/1283 transitions.
Applied a total of 0 rules in 46 ms. Remains 452 /452 variables (removed 0) and now considering 1283/1283 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 46 ms. Remains : 452/452 places, 1283/1283 transitions.
RANDOM walk for 40003 steps (8 resets) in 241 ms. (165 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40003 steps (8 resets) in 65 ms. (606 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40004 steps (8 resets) in 122 ms. (325 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40004 steps (8 resets) in 93 ms. (425 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40004 steps (8 resets) in 125 ms. (317 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40002 steps (8 resets) in 66 ms. (597 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40004 steps (8 resets) in 67 ms. (588 steps per ms) remains 6/6 properties
Interrupted probabilistic random walk after 255598 steps, run timeout after 3001 ms. (steps per millisecond=85 ) properties seen :0 out of 6
Probabilistic random walk after 255598 steps, saw 156743 distinct states, run finished after 3001 ms. (steps per millisecond=85 ) properties seen :0
[2024-05-23 04:21:49] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
[2024-05-23 04:21:49] [INFO ] Invariant cache hit.
[2024-05-23 04:21:49] [INFO ] State equation strengthened by 90 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/6 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 1 (OVERLAPS) 15/21 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/21 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 3 (OVERLAPS) 394/415 variables, 16/22 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/415 variables, 3/25 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/415 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 6 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 14/429 variables, 2/27 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/429 variables, 4/31 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/429 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 9 (OVERLAPS) 628/1057 variables, 354/385 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/1057 variables, 87/472 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/1057 variables, 0/472 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 12 (OVERLAPS) 62/1119 variables, 1/473 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/1119 variables, 0/473 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 14 (OVERLAPS) 71/1190 variables, 71/544 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/1190 variables, 0/544 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 16 (OVERLAPS) 1/1191 variables, 1/545 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/1191 variables, 0/545 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 18 (OVERLAPS) 0/1191 variables, 0/545 constraints. Problems are: Problem set: 0 solved, 6 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1191/1191 variables, and 545 constraints, problems are : Problem set: 0 solved, 6 unsolved in 800 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 452/452 constraints, ReadFeed: 90/90 constraints, PredecessorRefiner: 6/6 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 6 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/6 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 1 (OVERLAPS) 15/21 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/21 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 3 (OVERLAPS) 394/415 variables, 16/22 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/415 variables, 3/25 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/415 variables, 6/31 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/415 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 7 (OVERLAPS) 14/429 variables, 2/33 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/429 variables, 4/37 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/429 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 10 (OVERLAPS) 628/1057 variables, 354/391 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/1057 variables, 87/478 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/1057 variables, 0/478 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 13 (OVERLAPS) 62/1119 variables, 1/479 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/1119 variables, 0/479 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 15 (OVERLAPS) 71/1190 variables, 71/550 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/1190 variables, 0/550 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 17 (OVERLAPS) 1/1191 variables, 1/551 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/1191 variables, 0/551 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 19 (OVERLAPS) 0/1191 variables, 0/551 constraints. Problems are: Problem set: 0 solved, 6 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1191/1191 variables, and 551 constraints, problems are : Problem set: 0 solved, 6 unsolved in 951 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 452/452 constraints, ReadFeed: 90/90 constraints, PredecessorRefiner: 6/6 constraints, Known Traps: 0/0 constraints]
After SMT, in 1778ms problems are : Problem set: 0 solved, 6 unsolved
Fused 6 Parikh solutions to 3 different solutions.
Parikh walk visited 0 properties in 30001 ms.
Support contains 6 out of 452 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 452/452 places, 1283/1283 transitions.
Applied a total of 0 rules in 48 ms. Remains 452 /452 variables (removed 0) and now considering 1283/1283 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 48 ms. Remains : 452/452 places, 1283/1283 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 452/452 places, 1283/1283 transitions.
Applied a total of 0 rules in 46 ms. Remains 452 /452 variables (removed 0) and now considering 1283/1283 (removed 0) transitions.
[2024-05-23 04:22:21] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
[2024-05-23 04:22:21] [INFO ] Invariant cache hit.
[2024-05-23 04:22:21] [INFO ] Implicit Places using invariants in 300 ms returned []
[2024-05-23 04:22:21] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
[2024-05-23 04:22:21] [INFO ] Invariant cache hit.
[2024-05-23 04:22:21] [INFO ] State equation strengthened by 90 read => feed constraints.
[2024-05-23 04:22:23] [INFO ] Implicit Places using invariants and state equation in 1261 ms returned []
Implicit Place search using SMT with State Equation took 1562 ms to find 0 implicit places.
[2024-05-23 04:22:23] [INFO ] Redundant transitions in 18 ms returned []
Running 1281 sub problems to find dead transitions.
[2024-05-23 04:22:23] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
[2024-05-23 04:22:23] [INFO ] Invariant cache hit.
[2024-05-23 04:22:23] [INFO ] State equation strengthened by 90 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/452 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
[2024-05-23 04:22:38] [INFO ] Deduced a trap composed of 131 places in 136 ms of which 2 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/452 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
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 452/1191 variables, and 4 constraints, problems are : Problem set: 0 solved, 1281 unsolved in 30023 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/452 constraints, ReadFeed: 0/90 constraints, PredecessorRefiner: 1281/1281 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1281 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/452 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/452 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/452 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
At refinement iteration 3 (OVERLAPS) 739/1191 variables, 452/456 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1191 variables, 90/546 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/1191 variables, 1281/1827 constraints. Problems are: Problem set: 0 solved, 1281 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1191/1191 variables, and 1827 constraints, problems are : Problem set: 0 solved, 1281 unsolved in 30029 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 452/452 constraints, ReadFeed: 90/90 constraints, PredecessorRefiner: 1281/1281 constraints, Known Traps: 1/1 constraints]
After SMT, in 64829ms problems are : Problem set: 0 solved, 1281 unsolved
Search for dead transitions found 0 dead transitions in 64841ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 66481 ms. Remains : 452/452 places, 1283/1283 transitions.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[198, 470, 514, 4, 503, 753] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Starting property specific reduction for FunctionPointer-PT-c004-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]
[2024-05-23 04:23:27] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
[2024-05-23 04:23:27] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10003 steps (2 resets) in 23 ms. (416 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 7 ms. (1250 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[+inf]
[2024-05-23 04:23:27] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
[2024-05-23 04:23:27] [INFO ] Invariant cache hit.
[2024-05-23 04:23:28] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:23:28] [INFO ] [Real]Absence check using state equation in 140 ms returned sat
[2024-05-23 04:23:28] [INFO ] State equation strengthened by 90 read => feed constraints.
[2024-05-23 04:23:28] [INFO ] [Real]Added 90 Read/Feed constraints in 34 ms returned sat
[2024-05-23 04:23:28] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:23:28] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:23:28] [INFO ] [Nat]Absence check using state equation in 137 ms returned sat
[2024-05-23 04:23:28] [INFO ] [Nat]Added 90 Read/Feed constraints in 26 ms returned sat
[2024-05-23 04:23:28] [INFO ] Computed and/alt/rep : 221/1346/221 causal constraints (skipped 516 transitions) in 62 ms.
[2024-05-23 04:23:28] [INFO ] Added : 17 causal constraints over 5 iterations in 304 ms. Result :sat
Minimization took 264 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 452 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 452/452 places, 1283/1283 transitions.
Graph (complete) has 2212 edges and 452 vertex of which 449 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 449 transition count 1278
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 10 place count 445 transition count 1268
Iterating global reduction 1 with 4 rules applied. Total rules applied 14 place count 445 transition count 1268
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 18 place count 441 transition count 1258
Iterating global reduction 1 with 4 rules applied. Total rules applied 22 place count 441 transition count 1258
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 26 place count 437 transition count 1250
Iterating global reduction 1 with 4 rules applied. Total rules applied 30 place count 437 transition count 1250
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 34 place count 433 transition count 1242
Iterating global reduction 1 with 4 rules applied. Total rules applied 38 place count 433 transition count 1242
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 42 place count 429 transition count 1234
Iterating global reduction 1 with 4 rules applied. Total rules applied 46 place count 429 transition count 1234
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 50 place count 425 transition count 1226
Iterating global reduction 1 with 4 rules applied. Total rules applied 54 place count 425 transition count 1226
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 56 place count 423 transition count 1222
Iterating global reduction 1 with 2 rules applied. Total rules applied 58 place count 423 transition count 1222
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 59 place count 422 transition count 1220
Iterating global reduction 1 with 1 rules applied. Total rules applied 60 place count 422 transition count 1220
Applied a total of 60 rules in 117 ms. Remains 422 /452 variables (removed 30) and now considering 1220/1283 (removed 63) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 117 ms. Remains : 422/452 places, 1220/1283 transitions.
[2024-05-23 04:23:29] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
Found an invariant !
This invariant on transitions {228=1, 320=1, 518=1, 684=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 344=1, 670=1, 688=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 :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[0] Max Struct:[+inf]
[2024-05-23 04:23:29] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
// Phase 1: matrix 689 rows 422 cols
[2024-05-23 04:23:29] [INFO ] Computed 3 invariants in 6 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 1000001 steps (2 resets) in 2120 ms. (471 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 558 ms. (1788 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[+inf]
[2024-05-23 04:23:32] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2024-05-23 04:23:32] [INFO ] Invariant cache hit.
[2024-05-23 04:23:32] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:23:32] [INFO ] [Real]Absence check using state equation in 133 ms returned sat
[2024-05-23 04:23:32] [INFO ] State equation strengthened by 75 read => feed constraints.
[2024-05-23 04:23:32] [INFO ] [Real]Added 75 Read/Feed constraints in 27 ms returned sat
[2024-05-23 04:23:32] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:23:32] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:23:32] [INFO ] [Nat]Absence check using state equation in 136 ms returned sat
[2024-05-23 04:23:32] [INFO ] [Nat]Added 75 Read/Feed constraints in 28 ms returned sat
[2024-05-23 04:23:32] [INFO ] Computed and/alt/rep : 332/1248/332 causal constraints (skipped 355 transitions) in 60 ms.
[2024-05-23 04:23:33] [INFO ] Deduced a trap composed of 74 places in 174 ms of which 3 ms to minimize.
[2024-05-23 04:23:33] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 222 ms
[2024-05-23 04:23:33] [INFO ] Added : 10 causal constraints over 3 iterations in 488 ms. Result :sat
Minimization took 244 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 422 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 422/422 places, 1220/1220 transitions.
Applied a total of 0 rules in 50 ms. Remains 422 /422 variables (removed 0) and now considering 1220/1220 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 50 ms. Remains : 422/422 places, 1220/1220 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 422/422 places, 1220/1220 transitions.
Applied a total of 0 rules in 41 ms. Remains 422 /422 variables (removed 0) and now considering 1220/1220 (removed 0) transitions.
[2024-05-23 04:23:33] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2024-05-23 04:23:33] [INFO ] Invariant cache hit.
[2024-05-23 04:23:33] [INFO ] Implicit Places using invariants in 293 ms returned []
[2024-05-23 04:23:33] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2024-05-23 04:23:33] [INFO ] Invariant cache hit.
[2024-05-23 04:23:33] [INFO ] State equation strengthened by 75 read => feed constraints.
[2024-05-23 04:23:34] [INFO ] Implicit Places using invariants and state equation in 1194 ms returned []
Implicit Place search using SMT with State Equation took 1489 ms to find 0 implicit places.
[2024-05-23 04:23:35] [INFO ] Redundant transitions in 18 ms returned []
Running 1218 sub problems to find dead transitions.
[2024-05-23 04:23:35] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2024-05-23 04:23:35] [INFO ] Invariant cache hit.
[2024-05-23 04:23:35] [INFO ] State equation strengthened by 75 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/422 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
[2024-05-23 04:23:48] [INFO ] Deduced a trap composed of 131 places in 170 ms of which 3 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/422 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/422 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
At refinement iteration 3 (OVERLAPS) 689/1111 variables, 422/426 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
SMT process timed out in 33772ms, After SMT, problems are : Problem set: 0 solved, 1218 unsolved
Search for dead transitions found 0 dead transitions in 33784ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 35338 ms. Remains : 422/422 places, 1220/1220 transitions.
[2024-05-23 04:24:08] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
Found an invariant !
This invariant on transitions {228=1, 320=1, 518=1, 684=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 344=1, 670=1, 688=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 41 ms. (steps per millisecond=243 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 30495 steps (6 resets) in 151 ms. (200 steps per ms) remains 0/1 properties
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[0] Max Struct:[+inf]
Ending property specific reduction for FunctionPointer-PT-c004-UpperBounds-01 in 41192 ms.
Starting property specific reduction for FunctionPointer-PT-c004-UpperBounds-03
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]
[2024-05-23 04:24:09] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
// Phase 1: matrix 739 rows 452 cols
[2024-05-23 04:24:09] [INFO ] Computed 3 invariants in 3 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10000 steps (2 resets) in 22 ms. (434 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 7 ms. (1250 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[+inf]
[2024-05-23 04:24:09] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
[2024-05-23 04:24:09] [INFO ] Invariant cache hit.
[2024-05-23 04:24:09] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:24:09] [INFO ] [Real]Absence check using state equation in 135 ms returned sat
[2024-05-23 04:24:09] [INFO ] State equation strengthened by 90 read => feed constraints.
[2024-05-23 04:24:09] [INFO ] [Real]Added 90 Read/Feed constraints in 25 ms returned sat
[2024-05-23 04:24:09] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:24:09] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:24:09] [INFO ] [Nat]Absence check using state equation in 140 ms returned sat
[2024-05-23 04:24:09] [INFO ] [Nat]Added 90 Read/Feed constraints in 35 ms returned sat
[2024-05-23 04:24:09] [INFO ] Computed and/alt/rep : 221/1346/221 causal constraints (skipped 516 transitions) in 63 ms.
[2024-05-23 04:24:09] [INFO ] Added : 16 causal constraints over 4 iterations in 303 ms. Result :sat
Minimization took 262 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 452 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 452/452 places, 1283/1283 transitions.
Graph (complete) has 2212 edges and 452 vertex of which 449 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 449 transition count 1278
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 10 place count 445 transition count 1268
Iterating global reduction 1 with 4 rules applied. Total rules applied 14 place count 445 transition count 1268
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 18 place count 441 transition count 1260
Iterating global reduction 1 with 4 rules applied. Total rules applied 22 place count 441 transition count 1260
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 26 place count 437 transition count 1250
Iterating global reduction 1 with 4 rules applied. Total rules applied 30 place count 437 transition count 1250
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 34 place count 433 transition count 1242
Iterating global reduction 1 with 4 rules applied. Total rules applied 38 place count 433 transition count 1242
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 42 place count 429 transition count 1234
Iterating global reduction 1 with 4 rules applied. Total rules applied 46 place count 429 transition count 1234
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 50 place count 425 transition count 1226
Iterating global reduction 1 with 4 rules applied. Total rules applied 54 place count 425 transition count 1226
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 56 place count 423 transition count 1222
Iterating global reduction 1 with 2 rules applied. Total rules applied 58 place count 423 transition count 1222
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 59 place count 422 transition count 1220
Iterating global reduction 1 with 1 rules applied. Total rules applied 60 place count 422 transition count 1220
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 61 place count 421 transition count 1218
Iterating global reduction 1 with 1 rules applied. Total rules applied 62 place count 421 transition count 1218
Applied a total of 62 rules in 120 ms. Remains 421 /452 variables (removed 31) and now considering 1218/1283 (removed 65) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 120 ms. Remains : 421/452 places, 1218/1283 transitions.
[2024-05-23 04:24:10] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
Found an invariant !
This invariant on transitions {216=1, 307=1, 633=1, 686=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 343=1, 541=1, 684=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 36 ms. (steps per millisecond=277 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[0] Max Struct:[+inf]
[2024-05-23 04:24:10] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
// Phase 1: matrix 688 rows 421 cols
[2024-05-23 04:24:10] [INFO ] Computed 3 invariants in 13 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 1000001 steps (2 resets) in 2052 ms. (487 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 594 ms. (1680 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[+inf]
[2024-05-23 04:24:13] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2024-05-23 04:24:13] [INFO ] Invariant cache hit.
[2024-05-23 04:24:13] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:24:13] [INFO ] [Real]Absence check using state equation in 122 ms returned sat
[2024-05-23 04:24:13] [INFO ] State equation strengthened by 75 read => feed constraints.
[2024-05-23 04:24:13] [INFO ] [Real]Added 75 Read/Feed constraints in 24 ms returned sat
[2024-05-23 04:24:13] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:24:13] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:24:13] [INFO ] [Nat]Absence check using state equation in 141 ms returned sat
[2024-05-23 04:24:13] [INFO ] [Nat]Added 75 Read/Feed constraints in 23 ms returned sat
[2024-05-23 04:24:13] [INFO ] Computed and/alt/rep : 332/1248/332 causal constraints (skipped 354 transitions) in 62 ms.
[2024-05-23 04:24:14] [INFO ] Added : 12 causal constraints over 5 iterations in 277 ms. Result :sat
Minimization took 300 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:[2] Max Struct:[+inf]
Support contains 1 out of 421 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 421/421 places, 1218/1218 transitions.
Applied a total of 0 rules in 41 ms. Remains 421 /421 variables (removed 0) and now considering 1218/1218 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 41 ms. Remains : 421/421 places, 1218/1218 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 421/421 places, 1218/1218 transitions.
Applied a total of 0 rules in 41 ms. Remains 421 /421 variables (removed 0) and now considering 1218/1218 (removed 0) transitions.
[2024-05-23 04:24:14] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2024-05-23 04:24:14] [INFO ] Invariant cache hit.
[2024-05-23 04:24:14] [INFO ] Implicit Places using invariants in 313 ms returned []
[2024-05-23 04:24:14] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2024-05-23 04:24:14] [INFO ] Invariant cache hit.
[2024-05-23 04:24:15] [INFO ] State equation strengthened by 75 read => feed constraints.
[2024-05-23 04:24:15] [INFO ] Implicit Places using invariants and state equation in 1143 ms returned []
Implicit Place search using SMT with State Equation took 1457 ms to find 0 implicit places.
[2024-05-23 04:24:16] [INFO ] Redundant transitions in 19 ms returned []
Running 1216 sub problems to find dead transitions.
[2024-05-23 04:24:16] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2024-05-23 04:24:16] [INFO ] Invariant cache hit.
[2024-05-23 04:24:16] [INFO ] State equation strengthened by 75 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/421 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
[2024-05-23 04:24:29] [INFO ] Deduced a trap composed of 131 places in 142 ms of which 5 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/421 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/421 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
At refinement iteration 3 (OVERLAPS) 688/1109 variables, 421/425 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
SMT process timed out in 34093ms, After SMT, problems are : Problem set: 0 solved, 1216 unsolved
Search for dead transitions found 0 dead transitions in 34104ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 35634 ms. Remains : 421/421 places, 1218/1218 transitions.
[2024-05-23 04:24:50] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
Found an invariant !
This invariant on transitions {216=1, 307=1, 633=1, 686=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 343=1, 541=1, 684=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:[2] Max Struct:[+inf]
[2024-05-23 04:24:50] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2024-05-23 04:24:50] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[2] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 2105 ms. (474 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 556 ms. (1795 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2] Max Struct:[+inf]
[2024-05-23 04:24:53] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2024-05-23 04:24:53] [INFO ] Invariant cache hit.
[2024-05-23 04:24:53] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:24:53] [INFO ] [Real]Absence check using state equation in 125 ms returned sat
[2024-05-23 04:24:53] [INFO ] State equation strengthened by 75 read => feed constraints.
[2024-05-23 04:24:53] [INFO ] [Real]Added 75 Read/Feed constraints in 27 ms returned sat
[2024-05-23 04:24:53] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:24:53] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:24:53] [INFO ] [Nat]Absence check using state equation in 128 ms returned sat
[2024-05-23 04:24:53] [INFO ] [Nat]Added 75 Read/Feed constraints in 31 ms returned sat
[2024-05-23 04:24:53] [INFO ] Deduced a trap composed of 70 places in 178 ms of which 3 ms to minimize.
[2024-05-23 04:24:53] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 221 ms
[2024-05-23 04:24:53] [INFO ] Computed and/alt/rep : 332/1248/332 causal constraints (skipped 354 transitions) in 58 ms.
[2024-05-23 04:24:53] [INFO ] Added : 8 causal constraints over 3 iterations in 219 ms. Result :sat
Minimization took 246 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[2] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[2] Max Struct:[+inf]
Support contains 1 out of 421 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 421/421 places, 1218/1218 transitions.
Applied a total of 0 rules in 41 ms. Remains 421 /421 variables (removed 0) and now considering 1218/1218 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 41 ms. Remains : 421/421 places, 1218/1218 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 421/421 places, 1218/1218 transitions.
Applied a total of 0 rules in 54 ms. Remains 421 /421 variables (removed 0) and now considering 1218/1218 (removed 0) transitions.
[2024-05-23 04:24:54] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2024-05-23 04:24:54] [INFO ] Invariant cache hit.
[2024-05-23 04:24:54] [INFO ] Implicit Places using invariants in 285 ms returned []
[2024-05-23 04:24:54] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2024-05-23 04:24:54] [INFO ] Invariant cache hit.
[2024-05-23 04:24:54] [INFO ] State equation strengthened by 75 read => feed constraints.
[2024-05-23 04:24:55] [INFO ] Implicit Places using invariants and state equation in 1161 ms returned []
Implicit Place search using SMT with State Equation took 1447 ms to find 0 implicit places.
[2024-05-23 04:24:55] [INFO ] Redundant transitions in 20 ms returned []
Running 1216 sub problems to find dead transitions.
[2024-05-23 04:24:55] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2024-05-23 04:24:55] [INFO ] Invariant cache hit.
[2024-05-23 04:24:55] [INFO ] State equation strengthened by 75 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/421 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
[2024-05-23 04:25:09] [INFO ] Deduced a trap composed of 131 places in 150 ms of which 3 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/421 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/421 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 3 (OVERLAPS) 688/1109 variables, 421/425 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
SMT process timed out in 33720ms, After SMT, problems are : Problem set: 0 solved, 1216 unsolved
Search for dead transitions found 0 dead transitions in 33730ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 35258 ms. Remains : 421/421 places, 1218/1218 transitions.
[2024-05-23 04:25:29] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
Found an invariant !
This invariant on transitions {216=1, 307=1, 633=1, 686=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 343=1, 541=1, 684=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 39 ms. (steps per millisecond=256 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[2] Max Struct:[+inf]
RANDOM walk for 40009 steps (8 resets) in 141 ms. (281 steps per ms) remains 1/1 properties
BEST_FIRST walk for 32226 steps (6 resets) in 25 ms. (1239 steps per ms) remains 0/1 properties
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[2] Max Struct:[+inf]
Ending property specific reduction for FunctionPointer-PT-c004-UpperBounds-03 in 80710 ms.
Starting property specific reduction for FunctionPointer-PT-c004-UpperBounds-05
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]
[2024-05-23 04:25:29] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
// Phase 1: matrix 739 rows 452 cols
[2024-05-23 04:25:29] [INFO ] Computed 3 invariants in 4 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10005 steps (2 resets) in 24 ms. (400 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 7 ms. (1250 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[+inf]
[2024-05-23 04:25:29] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
[2024-05-23 04:25:29] [INFO ] Invariant cache hit.
[2024-05-23 04:25:29] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:25:30] [INFO ] [Real]Absence check using state equation in 137 ms returned sat
[2024-05-23 04:25:30] [INFO ] State equation strengthened by 90 read => feed constraints.
[2024-05-23 04:25:30] [INFO ] [Real]Added 90 Read/Feed constraints in 23 ms returned sat
[2024-05-23 04:25:30] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:25:30] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:25:30] [INFO ] [Nat]Absence check using state equation in 139 ms returned sat
[2024-05-23 04:25:30] [INFO ] [Nat]Added 90 Read/Feed constraints in 26 ms returned sat
[2024-05-23 04:25:30] [INFO ] Computed and/alt/rep : 221/1346/221 causal constraints (skipped 516 transitions) in 63 ms.
[2024-05-23 04:25:30] [INFO ] Deduced a trap composed of 131 places in 147 ms of which 2 ms to minimize.
[2024-05-23 04:25:30] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 200 ms
[2024-05-23 04:25:31] [INFO ] Added : 28 causal constraints over 9 iterations in 673 ms. Result :sat
Minimization took 278 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:[1] Max Struct:[+inf]
Support contains 1 out of 452 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 452/452 places, 1283/1283 transitions.
Graph (complete) has 2212 edges and 452 vertex of which 449 are kept as prefixes of interest. Removing 3 places using SCC suffix rule.0 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 449 transition count 1278
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 10 place count 445 transition count 1268
Iterating global reduction 1 with 4 rules applied. Total rules applied 14 place count 445 transition count 1268
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 18 place count 441 transition count 1258
Iterating global reduction 1 with 4 rules applied. Total rules applied 22 place count 441 transition count 1258
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 26 place count 437 transition count 1248
Iterating global reduction 1 with 4 rules applied. Total rules applied 30 place count 437 transition count 1248
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 34 place count 433 transition count 1240
Iterating global reduction 1 with 4 rules applied. Total rules applied 38 place count 433 transition count 1240
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 42 place count 429 transition count 1232
Iterating global reduction 1 with 4 rules applied. Total rules applied 46 place count 429 transition count 1232
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 50 place count 425 transition count 1224
Iterating global reduction 1 with 4 rules applied. Total rules applied 54 place count 425 transition count 1224
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 57 place count 422 transition count 1218
Iterating global reduction 1 with 3 rules applied. Total rules applied 60 place count 422 transition count 1218
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 62 place count 420 transition count 1214
Iterating global reduction 1 with 2 rules applied. Total rules applied 64 place count 420 transition count 1214
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 65 place count 419 transition count 1212
Iterating global reduction 1 with 1 rules applied. Total rules applied 66 place count 419 transition count 1212
Applied a total of 66 rules in 112 ms. Remains 419 /452 variables (removed 33) and now considering 1212/1283 (removed 71) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 112 ms. Remains : 419/452 places, 1212/1283 transitions.
[2024-05-23 04:25:31] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
Found an invariant !
This invariant on transitions {252=1, 340=1, 538=1, 680=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {250=1, 338=1, 664=1, 683=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:[1] Max Struct:[+inf]
[2024-05-23 04:25:31] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
// Phase 1: matrix 685 rows 419 cols
[2024-05-23 04:25:31] [INFO ] Computed 3 invariants in 6 ms
Current structural bounds on expressions (after invariants) : Max Seen:[1] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 2127 ms. (469 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 558 ms. (1788 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[452] Max Struct:[+inf]
[2024-05-23 04:25:34] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
[2024-05-23 04:25:34] [INFO ] Invariant cache hit.
[2024-05-23 04:25:34] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:25:34] [INFO ] [Real]Absence check using state equation in 121 ms returned sat
[2024-05-23 04:25:34] [INFO ] State equation strengthened by 75 read => feed constraints.
[2024-05-23 04:25:34] [INFO ] [Real]Added 75 Read/Feed constraints in 37 ms returned sat
[2024-05-23 04:25:34] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:25:34] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:25:34] [INFO ] [Nat]Absence check using state equation in 129 ms returned sat
[2024-05-23 04:25:34] [INFO ] [Nat]Added 75 Read/Feed constraints in 30 ms returned sat
[2024-05-23 04:25:35] [INFO ] Deduced a trap composed of 71 places in 182 ms of which 3 ms to minimize.
[2024-05-23 04:25:35] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 222 ms
[2024-05-23 04:25:35] [INFO ] Computed and/alt/rep : 332/1248/332 causal constraints (skipped 351 transitions) in 58 ms.
[2024-05-23 04:25:35] [INFO ] Added : 17 causal constraints over 5 iterations in 303 ms. Result :sat
Minimization took 245 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[452] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[452] Max Struct:[+inf]
Support contains 1 out of 419 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 419/419 places, 1212/1212 transitions.
Applied a total of 0 rules in 46 ms. Remains 419 /419 variables (removed 0) and now considering 1212/1212 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 46 ms. Remains : 419/419 places, 1212/1212 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 419/419 places, 1212/1212 transitions.
Applied a total of 0 rules in 46 ms. Remains 419 /419 variables (removed 0) and now considering 1212/1212 (removed 0) transitions.
[2024-05-23 04:25:37] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
[2024-05-23 04:25:37] [INFO ] Invariant cache hit.
[2024-05-23 04:25:37] [INFO ] Implicit Places using invariants in 301 ms returned []
[2024-05-23 04:25:37] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
[2024-05-23 04:25:37] [INFO ] Invariant cache hit.
[2024-05-23 04:25:37] [INFO ] State equation strengthened by 75 read => feed constraints.
[2024-05-23 04:25:38] [INFO ] Implicit Places using invariants and state equation in 1235 ms returned []
Implicit Place search using SMT with State Equation took 1539 ms to find 0 implicit places.
[2024-05-23 04:25:38] [INFO ] Redundant transitions in 20 ms returned []
Running 1210 sub problems to find dead transitions.
[2024-05-23 04:25:39] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
[2024-05-23 04:25:39] [INFO ] Invariant cache hit.
[2024-05-23 04:25:39] [INFO ] State equation strengthened by 75 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/419 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1210 unsolved
[2024-05-23 04:25:52] [INFO ] Deduced a trap composed of 131 places in 279 ms of which 5 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/419 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1210 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/419 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1210 unsolved
Error getting values : (error "ParserException while parsing response: ((s0 1.0)
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timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
At refinement iteration 3 (OVERLAPS) 685/1104 variables, 419/423 constraints. Problems are: Problem set: 0 solved, 1210 unsolved
SMT process timed out in 34328ms, After SMT, problems are : Problem set: 0 solved, 1210 unsolved
Search for dead transitions found 0 dead transitions in 34341ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 35960 ms. Remains : 419/419 places, 1212/1212 transitions.
[2024-05-23 04:26:13] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
Found an invariant !
This invariant on transitions {252=1, 340=1, 538=1, 680=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {250=1, 338=1, 664=1, 683=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 30 ms. (steps per millisecond=333 ) properties (out of 1) seen :[3]
Current structural bounds on expressions (after cover walk) : Max Seen:[452] Max Struct:[+inf]
[2024-05-23 04:26:13] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
[2024-05-23 04:26:13] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[452] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 2174 ms. (459 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 558 ms. (1788 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[555] Max Struct:[+inf]
[2024-05-23 04:26:16] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
[2024-05-23 04:26:16] [INFO ] Invariant cache hit.
[2024-05-23 04:26:16] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:26:16] [INFO ] [Real]Absence check using state equation in 126 ms returned sat
[2024-05-23 04:26:16] [INFO ] State equation strengthened by 75 read => feed constraints.
[2024-05-23 04:26:16] [INFO ] [Real]Added 75 Read/Feed constraints in 38 ms returned sat
[2024-05-23 04:26:16] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:26:16] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 04:26:16] [INFO ] [Nat]Absence check using state equation in 127 ms returned sat
[2024-05-23 04:26:16] [INFO ] [Nat]Added 75 Read/Feed constraints in 30 ms returned sat
[2024-05-23 04:26:17] [INFO ] Deduced a trap composed of 71 places in 177 ms of which 3 ms to minimize.
[2024-05-23 04:26:17] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 220 ms
[2024-05-23 04:26:17] [INFO ] Computed and/alt/rep : 332/1248/332 causal constraints (skipped 351 transitions) in 59 ms.
[2024-05-23 04:26:17] [INFO ] Added : 17 causal constraints over 5 iterations in 300 ms. Result :sat
Minimization took 247 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[555] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[555] Max Struct:[+inf]
Support contains 1 out of 419 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 419/419 places, 1212/1212 transitions.
Applied a total of 0 rules in 44 ms. Remains 419 /419 variables (removed 0) and now considering 1212/1212 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 44 ms. Remains : 419/419 places, 1212/1212 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 419/419 places, 1212/1212 transitions.
Applied a total of 0 rules in 39 ms. Remains 419 /419 variables (removed 0) and now considering 1212/1212 (removed 0) transitions.
[2024-05-23 04:26:19] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
[2024-05-23 04:26:19] [INFO ] Invariant cache hit.
[2024-05-23 04:26:19] [INFO ] Implicit Places using invariants in 292 ms returned []
[2024-05-23 04:26:19] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
[2024-05-23 04:26:19] [INFO ] Invariant cache hit.
[2024-05-23 04:26:20] [INFO ] State equation strengthened by 75 read => feed constraints.
[2024-05-23 04:26:21] [INFO ] Implicit Places using invariants and state equation in 1179 ms returned []
Implicit Place search using SMT with State Equation took 1473 ms to find 0 implicit places.
[2024-05-23 04:26:21] [INFO ] Redundant transitions in 20 ms returned []
Running 1210 sub problems to find dead transitions.
[2024-05-23 04:26:21] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
[2024-05-23 04:26:21] [INFO ] Invariant cache hit.
[2024-05-23 04:26:21] [INFO ] State equation strengthened by 75 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/419 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1210 unsolved
[2024-05-23 04:26:33] [INFO ] Deduced a trap composed of 131 places in 140 ms of which 2 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/419 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1210 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/419 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1210 unsolved
At refinement iteration 3 (OVERLAPS) 685/1104 variables, 419/423 constraints. Problems are: Problem set: 0 solved, 1210 unsolved
SMT process timed out in 33651ms, After SMT, problems are : Problem set: 0 solved, 1210 unsolved
Search for dead transitions found 0 dead transitions in 33661ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 35205 ms. Remains : 419/419 places, 1212/1212 transitions.
[2024-05-23 04:26:54] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
Found an invariant !
This invariant on transitions {252=1, 340=1, 538=1, 680=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {250=1, 338=1, 664=1, 683=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 36 ms. (steps per millisecond=277 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[555] Max Struct:[+inf]
[2024-05-23 04:26:55] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
[2024-05-23 04:26:55] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[555] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 2150 ms. (464 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 572 ms. (1745 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[555] Max Struct:[+inf]
[2024-05-23 04:26:57] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
[2024-05-23 04:26:57] [INFO ] Invariant cache hit.
[2024-05-23 04:26:57] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:26:57] [INFO ] [Real]Absence check using state equation in 126 ms returned sat
[2024-05-23 04:26:57] [INFO ] State equation strengthened by 75 read => feed constraints.
[2024-05-23 04:26:57] [INFO ] [Real]Added 75 Read/Feed constraints in 35 ms returned sat
[2024-05-23 04:26:58] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:26:58] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:26:58] [INFO ] [Nat]Absence check using state equation in 128 ms returned sat
[2024-05-23 04:26:58] [INFO ] [Nat]Added 75 Read/Feed constraints in 29 ms returned sat
[2024-05-23 04:26:58] [INFO ] Deduced a trap composed of 71 places in 168 ms of which 3 ms to minimize.
[2024-05-23 04:26:58] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 220 ms
[2024-05-23 04:26:58] [INFO ] Computed and/alt/rep : 332/1248/332 causal constraints (skipped 351 transitions) in 58 ms.
[2024-05-23 04:26:58] [INFO ] Added : 17 causal constraints over 5 iterations in 307 ms. Result :sat
Minimization took 246 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[555] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[555] Max Struct:[+inf]
Support contains 1 out of 419 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 419/419 places, 1212/1212 transitions.
Applied a total of 0 rules in 40 ms. Remains 419 /419 variables (removed 0) and now considering 1212/1212 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 40 ms. Remains : 419/419 places, 1212/1212 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 419/419 places, 1212/1212 transitions.
Applied a total of 0 rules in 55 ms. Remains 419 /419 variables (removed 0) and now considering 1212/1212 (removed 0) transitions.
[2024-05-23 04:27:00] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
[2024-05-23 04:27:00] [INFO ] Invariant cache hit.
[2024-05-23 04:27:01] [INFO ] Implicit Places using invariants in 304 ms returned []
[2024-05-23 04:27:01] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
[2024-05-23 04:27:01] [INFO ] Invariant cache hit.
[2024-05-23 04:27:01] [INFO ] State equation strengthened by 75 read => feed constraints.
[2024-05-23 04:27:02] [INFO ] Implicit Places using invariants and state equation in 1185 ms returned []
Implicit Place search using SMT with State Equation took 1490 ms to find 0 implicit places.
[2024-05-23 04:27:02] [INFO ] Redundant transitions in 20 ms returned []
Running 1210 sub problems to find dead transitions.
[2024-05-23 04:27:02] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
[2024-05-23 04:27:02] [INFO ] Invariant cache hit.
[2024-05-23 04:27:02] [INFO ] State equation strengthened by 75 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/419 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1210 unsolved
[2024-05-23 04:27:15] [INFO ] Deduced a trap composed of 131 places in 151 ms of which 3 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/419 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1210 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/419 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1210 unsolved
At refinement iteration 3 (OVERLAPS) 685/1104 variables, 419/423 constraints. Problems are: Problem set: 0 solved, 1210 unsolved
SMT process timed out in 33888ms, After SMT, problems are : Problem set: 0 solved, 1210 unsolved
Search for dead transitions found 0 dead transitions in 33898ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 35475 ms. Remains : 419/419 places, 1212/1212 transitions.
[2024-05-23 04:27:36] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
Found an invariant !
This invariant on transitions {252=1, 340=1, 538=1, 680=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {250=1, 338=1, 664=1, 683=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 :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[555] Max Struct:[+inf]
RANDOM walk for 40001 steps (8 resets) in 111 ms. (357 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 37 ms. (1052 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 558183 steps, run timeout after 3001 ms. (steps per millisecond=185 ) properties seen :0 out of 1
Probabilistic random walk after 558183 steps, saw 342269 distinct states, run finished after 3001 ms. (steps per millisecond=185 ) properties seen :0
[2024-05-23 04:27:39] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
[2024-05-23 04:27:39] [INFO ] Invariant cache hit.
[2024-05-23 04:27:39] [INFO ] State equation strengthened by 75 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 3/4 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/4 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 350/354 variables, 6/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/354 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/354 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 7/361 variables, 2/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/361 variables, 3/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/361 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 605/966 variables, 337/350 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/966 variables, 74/424 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/966 variables, 0/424 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 62/1028 variables, 1/425 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/1028 variables, 0/425 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 70/1098 variables, 68/493 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/1098 variables, 0/493 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 6/1104 variables, 4/497 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/1104 variables, 0/497 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 0/1104 variables, 0/497 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1104/1104 variables, and 497 constraints, problems are : Problem set: 0 solved, 1 unsolved in 266 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 419/419 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 3/4 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/4 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 350/354 variables, 6/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/354 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/354 variables, 1/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/354 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/361 variables, 2/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/361 variables, 3/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/361 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 605/966 variables, 337/351 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/966 variables, 74/425 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/966 variables, 0/425 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 62/1028 variables, 1/426 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/1028 variables, 0/426 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 70/1098 variables, 68/494 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/1098 variables, 0/494 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 6/1104 variables, 4/498 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/1104 variables, 0/498 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 0/1104 variables, 0/498 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1104/1104 variables, and 498 constraints, problems are : Problem set: 0 solved, 1 unsolved in 299 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 419/419 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 574ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 2321 ms.
Support contains 1 out of 419 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 419/419 places, 1212/1212 transitions.
Applied a total of 0 rules in 40 ms. Remains 419 /419 variables (removed 0) and now considering 1212/1212 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 41 ms. Remains : 419/419 places, 1212/1212 transitions.
RANDOM walk for 40003 steps (8 resets) in 135 ms. (294 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 30 ms. (1290 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 552130 steps, run timeout after 3001 ms. (steps per millisecond=183 ) properties seen :0 out of 1
Probabilistic random walk after 552130 steps, saw 338558 distinct states, run finished after 3001 ms. (steps per millisecond=183 ) properties seen :0
[2024-05-23 04:27:45] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
[2024-05-23 04:27:45] [INFO ] Invariant cache hit.
[2024-05-23 04:27:45] [INFO ] State equation strengthened by 75 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 3/4 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/4 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 350/354 variables, 6/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/354 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/354 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 7/361 variables, 2/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/361 variables, 3/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/361 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 605/966 variables, 337/350 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/966 variables, 74/424 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/966 variables, 0/424 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 62/1028 variables, 1/425 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/1028 variables, 0/425 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 70/1098 variables, 68/493 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/1098 variables, 0/493 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 6/1104 variables, 4/497 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/1104 variables, 0/497 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 0/1104 variables, 0/497 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1104/1104 variables, and 497 constraints, problems are : Problem set: 0 solved, 1 unsolved in 273 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 419/419 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 3/4 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/4 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 350/354 variables, 6/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/354 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/354 variables, 1/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/354 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/361 variables, 2/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/361 variables, 3/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/361 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 605/966 variables, 337/351 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/966 variables, 74/425 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/966 variables, 0/425 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 62/1028 variables, 1/426 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/1028 variables, 0/426 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 70/1098 variables, 68/494 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/1098 variables, 0/494 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 6/1104 variables, 4/498 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/1104 variables, 0/498 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 0/1104 variables, 0/498 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1104/1104 variables, and 498 constraints, problems are : Problem set: 0 solved, 1 unsolved in 284 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 419/419 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 564ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 2439 ms.
Support contains 1 out of 419 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 419/419 places, 1212/1212 transitions.
Applied a total of 0 rules in 53 ms. Remains 419 /419 variables (removed 0) and now considering 1212/1212 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 53 ms. Remains : 419/419 places, 1212/1212 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 419/419 places, 1212/1212 transitions.
Applied a total of 0 rules in 42 ms. Remains 419 /419 variables (removed 0) and now considering 1212/1212 (removed 0) transitions.
[2024-05-23 04:27:48] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
[2024-05-23 04:27:48] [INFO ] Invariant cache hit.
[2024-05-23 04:27:49] [INFO ] Implicit Places using invariants in 293 ms returned []
[2024-05-23 04:27:49] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
[2024-05-23 04:27:49] [INFO ] Invariant cache hit.
[2024-05-23 04:27:49] [INFO ] State equation strengthened by 75 read => feed constraints.
[2024-05-23 04:27:50] [INFO ] Implicit Places using invariants and state equation in 1223 ms returned []
Implicit Place search using SMT with State Equation took 1529 ms to find 0 implicit places.
[2024-05-23 04:27:50] [INFO ] Redundant transitions in 22 ms returned []
Running 1210 sub problems to find dead transitions.
[2024-05-23 04:27:50] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
[2024-05-23 04:27:50] [INFO ] Invariant cache hit.
[2024-05-23 04:27:50] [INFO ] State equation strengthened by 75 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/419 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1210 unsolved
[2024-05-23 04:28:03] [INFO ] Deduced a trap composed of 131 places in 143 ms of which 2 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/419 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1210 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/419 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1210 unsolved
At refinement iteration 3 (OVERLAPS) 685/1104 variables, 419/423 constraints. Problems are: Problem set: 0 solved, 1210 unsolved
SMT process timed out in 34162ms, After SMT, problems are : Problem set: 0 solved, 1210 unsolved
Search for dead transitions found 0 dead transitions in 34172ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 35778 ms. Remains : 419/419 places, 1212/1212 transitions.
Attempting over-approximation, by ignoring read arcs.
Ensure Unique test removed 527 transitions
Reduce isomorphic transitions removed 527 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 12 transitions
Trivial Post-agglo rules discarded 12 transitions
Performed 12 trivial Post agglomeration. Transition count delta: 12
Iterating post reduction 0 with 539 rules applied. Total rules applied 539 place count 419 transition count 673
Reduce places removed 12 places and 0 transitions.
Iterating post reduction 1 with 12 rules applied. Total rules applied 551 place count 407 transition count 673
Performed 69 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 69 Pre rules applied. Total rules applied 551 place count 407 transition count 604
Deduced a syphon composed of 69 places in 0 ms
Reduce places removed 69 places and 0 transitions.
Iterating global reduction 2 with 138 rules applied. Total rules applied 689 place count 338 transition count 604
Performed 128 Post agglomeration using F-continuation condition.Transition count delta: 128
Deduced a syphon composed of 128 places in 0 ms
Reduce places removed 128 places and 0 transitions.
Iterating global reduction 2 with 256 rules applied. Total rules applied 945 place count 210 transition count 476
Discarding 64 places :
Symmetric choice reduction at 2 with 64 rule applications. Total rules 1009 place count 146 transition count 348
Iterating global reduction 2 with 64 rules applied. Total rules applied 1073 place count 146 transition count 348
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 1074 place count 146 transition count 347
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 1 Pre rules applied. Total rules applied 1074 place count 146 transition count 346
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 3 with 2 rules applied. Total rules applied 1076 place count 145 transition count 346
Discarding 63 places :
Symmetric choice reduction at 3 with 63 rule applications. Total rules 1139 place count 82 transition count 220
Iterating global reduction 3 with 63 rules applied. Total rules applied 1202 place count 82 transition count 220
Discarding 63 places :
Symmetric choice reduction at 3 with 63 rule applications. Total rules 1265 place count 19 transition count 94
Iterating global reduction 3 with 63 rules applied. Total rules applied 1328 place count 19 transition count 94
Ensure Unique test removed 63 transitions
Reduce isomorphic transitions removed 63 transitions.
Iterating post reduction 3 with 63 rules applied. Total rules applied 1391 place count 19 transition count 31
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 1 Pre rules applied. Total rules applied 1391 place count 19 transition count 30
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 4 with 2 rules applied. Total rules applied 1393 place count 18 transition count 30
Applied a total of 1393 rules in 139 ms. Remains 18 /419 variables (removed 401) and now considering 30/1212 (removed 1182) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 30 rows 18 cols
[2024-05-23 04:28:24] [INFO ] Computed 3 invariants in 1 ms
[2024-05-23 04:28:24] [INFO ] [Real]Absence check using 3 positive place invariants in 0 ms returned sat
[2024-05-23 04:28:24] [INFO ] After 44ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2024-05-23 04:28:24] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2024-05-23 04:28:24] [INFO ] After 6ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2024-05-23 04:28:24] [INFO ] State equation strengthened by 2 read => feed constraints.
[2024-05-23 04:28:24] [INFO ] After 1ms SMT Verify possible using 2 Read/Feed constraints in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2024-05-23 04:28:24] [INFO ] After 4ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2024-05-23 04:28:24] [INFO ] After 31ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 225 ms.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[555] Max Struct:[+inf]
Ending property specific reduction for FunctionPointer-PT-c004-UpperBounds-05 in 175006 ms.
Starting property specific reduction for FunctionPointer-PT-c004-UpperBounds-10
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]
[2024-05-23 04:28:24] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
// Phase 1: matrix 739 rows 452 cols
[2024-05-23 04:28:24] [INFO ] Computed 3 invariants in 3 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10000 steps (2 resets) in 26 ms. (370 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:[0] Max Struct:[+inf]
[2024-05-23 04:28:24] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
[2024-05-23 04:28:24] [INFO ] Invariant cache hit.
[2024-05-23 04:28:24] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:28:25] [INFO ] [Real]Absence check using state equation in 133 ms returned sat
[2024-05-23 04:28:25] [INFO ] State equation strengthened by 90 read => feed constraints.
[2024-05-23 04:28:25] [INFO ] [Real]Added 90 Read/Feed constraints in 28 ms returned sat
[2024-05-23 04:28:25] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:28:25] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:28:25] [INFO ] [Nat]Absence check using state equation in 140 ms returned sat
[2024-05-23 04:28:25] [INFO ] [Nat]Added 90 Read/Feed constraints in 33 ms returned sat
[2024-05-23 04:28:25] [INFO ] Computed and/alt/rep : 221/1346/221 causal constraints (skipped 516 transitions) in 64 ms.
[2024-05-23 04:28:25] [INFO ] Added : 2 causal constraints over 1 iterations in 153 ms. Result :sat
Minimization took 285 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:[3] Max Struct:[+inf]
Support contains 1 out of 452 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 452/452 places, 1283/1283 transitions.
Discarding 5 places :
Symmetric choice reduction at 0 with 5 rule applications. Total rules 5 place count 447 transition count 1271
Iterating global reduction 0 with 5 rules applied. Total rules applied 10 place count 447 transition count 1271
Discarding 5 places :
Symmetric choice reduction at 0 with 5 rule applications. Total rules 15 place count 442 transition count 1259
Iterating global reduction 0 with 5 rules applied. Total rules applied 20 place count 442 transition count 1259
Discarding 5 places :
Symmetric choice reduction at 0 with 5 rule applications. Total rules 25 place count 437 transition count 1247
Iterating global reduction 0 with 5 rules applied. Total rules applied 30 place count 437 transition count 1247
Discarding 5 places :
Symmetric choice reduction at 0 with 5 rule applications. Total rules 35 place count 432 transition count 1237
Iterating global reduction 0 with 5 rules applied. Total rules applied 40 place count 432 transition count 1237
Discarding 5 places :
Symmetric choice reduction at 0 with 5 rule applications. Total rules 45 place count 427 transition count 1227
Iterating global reduction 0 with 5 rules applied. Total rules applied 50 place count 427 transition count 1227
Discarding 5 places :
Symmetric choice reduction at 0 with 5 rule applications. Total rules 55 place count 422 transition count 1217
Iterating global reduction 0 with 5 rules applied. Total rules applied 60 place count 422 transition count 1217
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 63 place count 419 transition count 1211
Iterating global reduction 0 with 3 rules applied. Total rules applied 66 place count 419 transition count 1211
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 68 place count 417 transition count 1207
Iterating global reduction 0 with 2 rules applied. Total rules applied 70 place count 417 transition count 1207
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 71 place count 416 transition count 1205
Iterating global reduction 0 with 1 rules applied. Total rules applied 72 place count 416 transition count 1205
Applied a total of 72 rules in 137 ms. Remains 416 /452 variables (removed 36) and now considering 1205/1283 (removed 78) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 137 ms. Remains : 416/452 places, 1205/1283 transitions.
[2024-05-23 04:28:26] [INFO ] Flow matrix only has 680 transitions (discarded 525 similar events)
Found an invariant !
This invariant on transitions {219=1, 303=1, 501=1, 675=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {256=1, 340=1, 666=1, 678=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:[3] Max Struct:[+inf]
[2024-05-23 04:28:26] [INFO ] Flow matrix only has 680 transitions (discarded 525 similar events)
// Phase 1: matrix 680 rows 416 cols
[2024-05-23 04:28:26] [INFO ] Computed 3 invariants in 4 ms
Current structural bounds on expressions (after invariants) : Max Seen:[3] Max Struct:[+inf]
RANDOM walk for 1000003 steps (2 resets) in 2119 ms. (471 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 581 ms. (1718 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3] Max Struct:[+inf]
[2024-05-23 04:28:29] [INFO ] Flow matrix only has 680 transitions (discarded 525 similar events)
[2024-05-23 04:28:29] [INFO ] Invariant cache hit.
[2024-05-23 04:28:29] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:28:29] [INFO ] [Real]Absence check using state equation in 144 ms returned sat
[2024-05-23 04:28:29] [INFO ] State equation strengthened by 75 read => feed constraints.
[2024-05-23 04:28:29] [INFO ] [Real]Added 75 Read/Feed constraints in 23 ms returned sat
[2024-05-23 04:28:29] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:28:29] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:28:29] [INFO ] [Nat]Absence check using state equation in 130 ms returned sat
[2024-05-23 04:28:29] [INFO ] [Nat]Added 75 Read/Feed constraints in 40 ms returned sat
[2024-05-23 04:28:29] [INFO ] Deduced a trap composed of 69 places in 177 ms of which 2 ms to minimize.
[2024-05-23 04:28:29] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 226 ms
[2024-05-23 04:28:29] [INFO ] Computed and/alt/rep : 333/1252/331 causal constraints (skipped 347 transitions) in 64 ms.
[2024-05-23 04:28:30] [INFO ] Deduced a trap composed of 72 places in 183 ms of which 3 ms to minimize.
[2024-05-23 04:28:30] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 234 ms
[2024-05-23 04:28:30] [INFO ] Added : 4 causal constraints over 2 iterations in 455 ms. Result :sat
Minimization took 247 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[3] Max Struct:[+inf]
Support contains 1 out of 416 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 416/416 places, 1205/1205 transitions.
Applied a total of 0 rules in 41 ms. Remains 416 /416 variables (removed 0) and now considering 1205/1205 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 42 ms. Remains : 416/416 places, 1205/1205 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 416/416 places, 1205/1205 transitions.
Applied a total of 0 rules in 46 ms. Remains 416 /416 variables (removed 0) and now considering 1205/1205 (removed 0) transitions.
[2024-05-23 04:28:30] [INFO ] Flow matrix only has 680 transitions (discarded 525 similar events)
[2024-05-23 04:28:30] [INFO ] Invariant cache hit.
[2024-05-23 04:28:30] [INFO ] Implicit Places using invariants in 285 ms returned []
[2024-05-23 04:28:30] [INFO ] Flow matrix only has 680 transitions (discarded 525 similar events)
[2024-05-23 04:28:30] [INFO ] Invariant cache hit.
[2024-05-23 04:28:31] [INFO ] State equation strengthened by 75 read => feed constraints.
[2024-05-23 04:28:32] [INFO ] Implicit Places using invariants and state equation in 1191 ms returned []
Implicit Place search using SMT with State Equation took 1478 ms to find 0 implicit places.
[2024-05-23 04:28:32] [INFO ] Redundant transitions in 18 ms returned []
Running 1203 sub problems to find dead transitions.
[2024-05-23 04:28:32] [INFO ] Flow matrix only has 680 transitions (discarded 525 similar events)
[2024-05-23 04:28:32] [INFO ] Invariant cache hit.
[2024-05-23 04:28:32] [INFO ] State equation strengthened by 75 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/416 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1203 unsolved
[2024-05-23 04:28:45] [INFO ] Deduced a trap composed of 131 places in 141 ms of which 2 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/416 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1203 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/416 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1203 unsolved
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
At refinement iteration 3 (OVERLAPS) 680/1096 variables, 416/420 constraints. Problems are: Problem set: 0 solved, 1203 unsolved
SMT process timed out in 34107ms, After SMT, problems are : Problem set: 0 solved, 1203 unsolved
Search for dead transitions found 0 dead transitions in 34118ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 35666 ms. Remains : 416/416 places, 1205/1205 transitions.
[2024-05-23 04:29:06] [INFO ] Flow matrix only has 680 transitions (discarded 525 similar events)
Found an invariant !
This invariant on transitions {219=1, 303=1, 501=1, 675=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {256=1, 340=1, 666=1, 678=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 32 ms. (steps per millisecond=312 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[3] Max Struct:[+inf]
RANDOM walk for 40003 steps (8 resets) in 105 ms. (377 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 34 ms. (1142 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 559464 steps, run timeout after 3001 ms. (steps per millisecond=186 ) properties seen :0 out of 1
Probabilistic random walk after 559464 steps, saw 343055 distinct states, run finished after 3002 ms. (steps per millisecond=186 ) properties seen :0
[2024-05-23 04:29:09] [INFO ] Flow matrix only has 680 transitions (discarded 525 similar events)
[2024-05-23 04:29:09] [INFO ] Invariant cache hit.
[2024-05-23 04:29:09] [INFO ] State equation strengthened by 75 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 5/8 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/8 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 340/348 variables, 4/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/348 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/348 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 6/354 variables, 2/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/354 variables, 2/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/354 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 598/952 variables, 333/345 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (INCLUDED_ONLY) 0/952 variables, 74/419 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/952 variables, 0/419 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 62/1014 variables, 1/420 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/1014 variables, 0/420 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 68/1082 variables, 66/486 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/1082 variables, 0/486 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 8/1090 variables, 4/490 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/1090 variables, 0/490 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 6/1096 variables, 4/494 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/1096 variables, 0/494 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 0/1096 variables, 0/494 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1096/1096 variables, and 494 constraints, problems are : Problem set: 0 solved, 1 unsolved in 298 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 416/416 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 5/8 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/8 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 340/348 variables, 4/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/348 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/348 variables, 1/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/348 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 6/354 variables, 2/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/354 variables, 2/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/354 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 598/952 variables, 333/346 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/952 variables, 74/420 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/952 variables, 0/420 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 62/1014 variables, 1/421 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/1014 variables, 0/421 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 68/1082 variables, 66/487 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/1082 variables, 0/487 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 8/1090 variables, 4/491 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/1090 variables, 0/491 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 6/1096 variables, 4/495 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/1096 variables, 0/495 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/1096 variables, 0/495 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1096/1096 variables, and 495 constraints, problems are : Problem set: 0 solved, 1 unsolved in 354 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 416/416 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 661ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 48 steps, including 0 resets, run visited all 1 properties in 1 ms. (steps per millisecond=48 )
Parikh walk visited 1 properties in 6 ms.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[3] Max Struct:[+inf]
Ending property specific reduction for FunctionPointer-PT-c004-UpperBounds-10 in 45389 ms.
Starting property specific reduction for FunctionPointer-PT-c004-UpperBounds-11
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]
[2024-05-23 04:29:10] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
// Phase 1: matrix 739 rows 452 cols
[2024-05-23 04:29:10] [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 22 ms. (434 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 7 ms. (1250 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[+inf]
[2024-05-23 04:29:10] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
[2024-05-23 04:29:10] [INFO ] Invariant cache hit.
[2024-05-23 04:29:10] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:29:10] [INFO ] [Real]Absence check using state equation in 153 ms returned sat
[2024-05-23 04:29:10] [INFO ] State equation strengthened by 90 read => feed constraints.
[2024-05-23 04:29:10] [INFO ] [Real]Added 90 Read/Feed constraints in 31 ms returned sat
[2024-05-23 04:29:10] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:29:10] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:29:10] [INFO ] [Nat]Absence check using state equation in 135 ms returned sat
[2024-05-23 04:29:10] [INFO ] [Nat]Added 90 Read/Feed constraints in 36 ms returned sat
[2024-05-23 04:29:10] [INFO ] Computed and/alt/rep : 221/1346/221 causal constraints (skipped 516 transitions) in 63 ms.
[2024-05-23 04:29:11] [INFO ] Added : 17 causal constraints over 5 iterations in 318 ms. Result :sat
Minimization took 277 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 452 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 452/452 places, 1283/1283 transitions.
Graph (complete) has 2212 edges and 452 vertex of which 449 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 449 transition count 1278
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 10 place count 445 transition count 1268
Iterating global reduction 1 with 4 rules applied. Total rules applied 14 place count 445 transition count 1268
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 18 place count 441 transition count 1258
Iterating global reduction 1 with 4 rules applied. Total rules applied 22 place count 441 transition count 1258
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 26 place count 437 transition count 1248
Iterating global reduction 1 with 4 rules applied. Total rules applied 30 place count 437 transition count 1248
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 34 place count 433 transition count 1240
Iterating global reduction 1 with 4 rules applied. Total rules applied 38 place count 433 transition count 1240
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 42 place count 429 transition count 1232
Iterating global reduction 1 with 4 rules applied. Total rules applied 46 place count 429 transition count 1232
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 50 place count 425 transition count 1224
Iterating global reduction 1 with 4 rules applied. Total rules applied 54 place count 425 transition count 1224
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 57 place count 422 transition count 1218
Iterating global reduction 1 with 3 rules applied. Total rules applied 60 place count 422 transition count 1218
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 62 place count 420 transition count 1214
Iterating global reduction 1 with 2 rules applied. Total rules applied 64 place count 420 transition count 1214
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 65 place count 419 transition count 1212
Iterating global reduction 1 with 1 rules applied. Total rules applied 66 place count 419 transition count 1212
Applied a total of 66 rules in 134 ms. Remains 419 /452 variables (removed 33) and now considering 1212/1283 (removed 71) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 135 ms. Remains : 419/452 places, 1212/1283 transitions.
[2024-05-23 04:29:11] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
Found an invariant !
This invariant on transitions {252=1, 340=1, 538=1, 680=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {250=1, 338=1, 664=1, 683=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 29 ms. (steps per millisecond=344 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[0] Max Struct:[+inf]
[2024-05-23 04:29:11] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
// Phase 1: matrix 685 rows 419 cols
[2024-05-23 04:29:11] [INFO ] Computed 3 invariants in 5 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 2266 ms. (441 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 596 ms. (1675 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[575] Max Struct:[+inf]
[2024-05-23 04:29:14] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
[2024-05-23 04:29:14] [INFO ] Invariant cache hit.
[2024-05-23 04:29:14] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:29:14] [INFO ] [Real]Absence check using state equation in 123 ms returned sat
[2024-05-23 04:29:14] [INFO ] State equation strengthened by 75 read => feed constraints.
[2024-05-23 04:29:15] [INFO ] [Real]Added 75 Read/Feed constraints in 41 ms returned sat
[2024-05-23 04:29:15] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:29:15] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:29:15] [INFO ] [Nat]Absence check using state equation in 127 ms returned sat
[2024-05-23 04:29:15] [INFO ] [Nat]Added 75 Read/Feed constraints in 37 ms returned sat
[2024-05-23 04:29:15] [INFO ] Deduced a trap composed of 71 places in 168 ms of which 2 ms to minimize.
[2024-05-23 04:29:15] [INFO ] Deduced a trap composed of 70 places in 177 ms of which 3 ms to minimize.
[2024-05-23 04:29:15] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 403 ms
[2024-05-23 04:29:15] [INFO ] Computed and/alt/rep : 332/1248/332 causal constraints (skipped 351 transitions) in 59 ms.
[2024-05-23 04:29:15] [INFO ] Added : 13 causal constraints over 4 iterations in 251 ms. Result :sat
Minimization took 239 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[575] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[575] Max Struct:[+inf]
Support contains 1 out of 419 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 419/419 places, 1212/1212 transitions.
Applied a total of 0 rules in 59 ms. Remains 419 /419 variables (removed 0) and now considering 1212/1212 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 59 ms. Remains : 419/419 places, 1212/1212 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 419/419 places, 1212/1212 transitions.
Applied a total of 0 rules in 42 ms. Remains 419 /419 variables (removed 0) and now considering 1212/1212 (removed 0) transitions.
[2024-05-23 04:29:18] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
[2024-05-23 04:29:18] [INFO ] Invariant cache hit.
[2024-05-23 04:29:18] [INFO ] Implicit Places using invariants in 285 ms returned []
[2024-05-23 04:29:18] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
[2024-05-23 04:29:18] [INFO ] Invariant cache hit.
[2024-05-23 04:29:18] [INFO ] State equation strengthened by 75 read => feed constraints.
[2024-05-23 04:29:19] [INFO ] Implicit Places using invariants and state equation in 1162 ms returned []
Implicit Place search using SMT with State Equation took 1448 ms to find 0 implicit places.
[2024-05-23 04:29:19] [INFO ] Redundant transitions in 18 ms returned []
Running 1210 sub problems to find dead transitions.
[2024-05-23 04:29:19] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
[2024-05-23 04:29:19] [INFO ] Invariant cache hit.
[2024-05-23 04:29:19] [INFO ] State equation strengthened by 75 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/419 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1210 unsolved
[2024-05-23 04:29:32] [INFO ] Deduced a trap composed of 131 places in 143 ms of which 3 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/419 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1210 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/419 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1210 unsolved
At refinement iteration 3 (OVERLAPS) 685/1104 variables, 419/423 constraints. Problems are: Problem set: 0 solved, 1210 unsolved
SMT process timed out in 34064ms, After SMT, problems are : Problem set: 0 solved, 1210 unsolved
Search for dead transitions found 0 dead transitions in 34075ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 35593 ms. Remains : 419/419 places, 1212/1212 transitions.
[2024-05-23 04:29:53] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
Found an invariant !
This invariant on transitions {252=1, 340=1, 538=1, 680=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {250=1, 338=1, 664=1, 683=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 36 ms. (steps per millisecond=277 ) properties (out of 1) seen :[2147483647]
Current structural bounds on expressions (after cover walk) : Max Seen:[+inf] Max Struct:[+inf]
[2024-05-23 04:29:53] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
[2024-05-23 04:29:53] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[+inf] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 2269 ms. (440 steps per ms)
FORMULA FunctionPointer-PT-c004-UpperBounds-11 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 0 steps (0 resets) in 0 ms. (0 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[] Max Struct:[]
RANDOM walk for 0 steps (0 resets) in 4 ms. (0 steps per ms) remains 0/0 properties
Finished probabilistic random walk after 0 steps, run visited all 0 properties in 0 ms. (steps per millisecond=0 )
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[] Max Struct:[]
Ending property specific reduction for FunctionPointer-PT-c004-UpperBounds-11 in 46025 ms.
Starting property specific reduction for FunctionPointer-PT-c004-UpperBounds-12
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]
[2024-05-23 04:29:56] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
// Phase 1: matrix 739 rows 452 cols
[2024-05-23 04:29:56] [INFO ] Computed 3 invariants in 4 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10002 steps (2 resets) in 30 ms. (322 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 8 ms. (1111 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[+inf]
[2024-05-23 04:29:56] [INFO ] Flow matrix only has 739 transitions (discarded 544 similar events)
[2024-05-23 04:29:56] [INFO ] Invariant cache hit.
[2024-05-23 04:29:56] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:29:56] [INFO ] [Real]Absence check using state equation in 139 ms returned sat
[2024-05-23 04:29:56] [INFO ] State equation strengthened by 90 read => feed constraints.
[2024-05-23 04:29:56] [INFO ] [Real]Added 90 Read/Feed constraints in 24 ms returned sat
[2024-05-23 04:29:56] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:29:56] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:29:56] [INFO ] [Nat]Absence check using state equation in 139 ms returned sat
[2024-05-23 04:29:56] [INFO ] [Nat]Added 90 Read/Feed constraints in 32 ms returned sat
[2024-05-23 04:29:56] [INFO ] Computed and/alt/rep : 221/1346/221 causal constraints (skipped 516 transitions) in 71 ms.
[2024-05-23 04:29:57] [INFO ] Added : 32 causal constraints over 7 iterations in 429 ms. Result :sat
Minimization took 290 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 452 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 452/452 places, 1283/1283 transitions.
Graph (complete) has 2212 edges and 452 vertex of which 449 are kept as prefixes of interest. Removing 3 places using SCC suffix rule.0 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 449 transition count 1278
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 10 place count 445 transition count 1270
Iterating global reduction 1 with 4 rules applied. Total rules applied 14 place count 445 transition count 1270
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 18 place count 441 transition count 1260
Iterating global reduction 1 with 4 rules applied. Total rules applied 22 place count 441 transition count 1260
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 26 place count 437 transition count 1250
Iterating global reduction 1 with 4 rules applied. Total rules applied 30 place count 437 transition count 1250
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 34 place count 433 transition count 1242
Iterating global reduction 1 with 4 rules applied. Total rules applied 38 place count 433 transition count 1242
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 42 place count 429 transition count 1234
Iterating global reduction 1 with 4 rules applied. Total rules applied 46 place count 429 transition count 1234
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 50 place count 425 transition count 1226
Iterating global reduction 1 with 4 rules applied. Total rules applied 54 place count 425 transition count 1226
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 56 place count 423 transition count 1222
Iterating global reduction 1 with 2 rules applied. Total rules applied 58 place count 423 transition count 1222
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 60 place count 421 transition count 1218
Iterating global reduction 1 with 2 rules applied. Total rules applied 62 place count 421 transition count 1218
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 63 place count 420 transition count 1216
Iterating global reduction 1 with 1 rules applied. Total rules applied 64 place count 420 transition count 1216
Applied a total of 64 rules in 133 ms. Remains 420 /452 variables (removed 32) and now considering 1216/1283 (removed 67) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 134 ms. Remains : 420/452 places, 1216/1283 transitions.
[2024-05-23 04:29:57] [INFO ] Flow matrix only has 687 transitions (discarded 529 similar events)
Found an invariant !
This invariant on transitions {244=1, 334=1, 660=1, 685=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 342=1, 668=1, 685=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 :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[0] Max Struct:[+inf]
[2024-05-23 04:29:57] [INFO ] Flow matrix only has 687 transitions (discarded 529 similar events)
// Phase 1: matrix 687 rows 420 cols
[2024-05-23 04:29:57] [INFO ] Computed 3 invariants in 6 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 2197 ms. (454 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 572 ms. (1745 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[+inf]
[2024-05-23 04:30:00] [INFO ] Flow matrix only has 687 transitions (discarded 529 similar events)
[2024-05-23 04:30:00] [INFO ] Invariant cache hit.
[2024-05-23 04:30:00] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2024-05-23 04:30:00] [INFO ] [Real]Absence check using state equation in 125 ms returned sat
[2024-05-23 04:30:00] [INFO ] State equation strengthened by 75 read => feed constraints.
[2024-05-23 04:30:00] [INFO ] [Real]Added 75 Read/Feed constraints in 25 ms returned sat
[2024-05-23 04:30:01] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:30:01] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:30:01] [INFO ] [Nat]Absence check using state equation in 133 ms returned sat
[2024-05-23 04:30:01] [INFO ] [Nat]Added 75 Read/Feed constraints in 23 ms returned sat
[2024-05-23 04:30:01] [INFO ] Computed and/alt/rep : 332/1248/332 causal constraints (skipped 353 transitions) in 72 ms.
[2024-05-23 04:30:01] [INFO ] Added : 17 causal constraints over 6 iterations in 376 ms. Result :sat
Minimization took 256 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:[1] Max Struct:[+inf]
Support contains 1 out of 420 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 420/420 places, 1216/1216 transitions.
Applied a total of 0 rules in 44 ms. Remains 420 /420 variables (removed 0) and now considering 1216/1216 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 44 ms. Remains : 420/420 places, 1216/1216 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 420/420 places, 1216/1216 transitions.
Applied a total of 0 rules in 44 ms. Remains 420 /420 variables (removed 0) and now considering 1216/1216 (removed 0) transitions.
[2024-05-23 04:30:02] [INFO ] Flow matrix only has 687 transitions (discarded 529 similar events)
[2024-05-23 04:30:02] [INFO ] Invariant cache hit.
[2024-05-23 04:30:02] [INFO ] Implicit Places using invariants in 310 ms returned []
[2024-05-23 04:30:02] [INFO ] Flow matrix only has 687 transitions (discarded 529 similar events)
[2024-05-23 04:30:02] [INFO ] Invariant cache hit.
[2024-05-23 04:30:02] [INFO ] State equation strengthened by 75 read => feed constraints.
[2024-05-23 04:30:03] [INFO ] Implicit Places using invariants and state equation in 1396 ms returned []
Implicit Place search using SMT with State Equation took 1708 ms to find 0 implicit places.
[2024-05-23 04:30:03] [INFO ] Redundant transitions in 19 ms returned []
Running 1214 sub problems to find dead transitions.
[2024-05-23 04:30:03] [INFO ] Flow matrix only has 687 transitions (discarded 529 similar events)
[2024-05-23 04:30:03] [INFO ] Invariant cache hit.
[2024-05-23 04:30:03] [INFO ] State equation strengthened by 75 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/420 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1214 unsolved
[2024-05-23 04:30:17] [INFO ] Deduced a trap composed of 131 places in 150 ms of which 2 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/420 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1214 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/420 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1214 unsolved
At refinement iteration 3 (OVERLAPS) 687/1107 variables, 420/424 constraints. Problems are: Problem set: 0 solved, 1214 unsolved
SMT process timed out in 34675ms, After SMT, problems are : Problem set: 0 solved, 1214 unsolved
Search for dead transitions found 0 dead transitions in 34685ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 36464 ms. Remains : 420/420 places, 1216/1216 transitions.
[2024-05-23 04:30:38] [INFO ] Flow matrix only has 687 transitions (discarded 529 similar events)
Found an invariant !
This invariant on transitions {244=1, 334=1, 660=1, 685=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 8 ms.
This minimized invariant on transitions {252=1, 342=1, 668=1, 685=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 32 ms. (steps per millisecond=312 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[1] Max Struct:[+inf]
[2024-05-23 04:30:38] [INFO ] Flow matrix only has 687 transitions (discarded 529 similar events)
[2024-05-23 04:30:38] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[1] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 2086 ms. (479 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 552 ms. (1808 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1] Max Struct:[+inf]
[2024-05-23 04:30:41] [INFO ] Flow matrix only has 687 transitions (discarded 529 similar events)
[2024-05-23 04:30:41] [INFO ] Invariant cache hit.
[2024-05-23 04:30:41] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:30:41] [INFO ] [Real]Absence check using state equation in 132 ms returned sat
[2024-05-23 04:30:41] [INFO ] State equation strengthened by 75 read => feed constraints.
[2024-05-23 04:30:41] [INFO ] [Real]Added 75 Read/Feed constraints in 28 ms returned sat
[2024-05-23 04:30:41] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 04:30:41] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 04:30:41] [INFO ] [Nat]Absence check using state equation in 129 ms returned sat
[2024-05-23 04:30:41] [INFO ] [Nat]Added 75 Read/Feed constraints in 19 ms returned sat
[2024-05-23 04:30:42] [INFO ] Deduced a trap composed of 74 places in 182 ms of which 3 ms to minimize.
[2024-05-23 04:30:42] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 241 ms
[2024-05-23 04:30:42] [INFO ] Computed and/alt/rep : 332/1248/332 causal constraints (skipped 353 transitions) in 59 ms.
[2024-05-23 04:30:42] [INFO ] Added : 11 causal constraints over 3 iterations in 257 ms. Result :sat
Minimization took 241 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1] Max Struct:[+inf]
Support contains 1 out of 420 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 420/420 places, 1216/1216 transitions.
Applied a total of 0 rules in 40 ms. Remains 420 /420 variables (removed 0) and now considering 1216/1216 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 41 ms. Remains : 420/420 places, 1216/1216 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 420/420 places, 1216/1216 transitions.
Applied a total of 0 rules in 40 ms. Remains 420 /420 variables (removed 0) and now considering 1216/1216 (removed 0) transitions.
[2024-05-23 04:30:42] [INFO ] Flow matrix only has 687 transitions (discarded 529 similar events)
[2024-05-23 04:30:42] [INFO ] Invariant cache hit.
[2024-05-23 04:30:43] [INFO ] Implicit Places using invariants in 294 ms returned []
[2024-05-23 04:30:43] [INFO ] Flow matrix only has 687 transitions (discarded 529 similar events)
[2024-05-23 04:30:43] [INFO ] Invariant cache hit.
[2024-05-23 04:30:43] [INFO ] State equation strengthened by 75 read => feed constraints.
[2024-05-23 04:30:44] [INFO ] Implicit Places using invariants and state equation in 1374 ms returned []
Implicit Place search using SMT with State Equation took 1670 ms to find 0 implicit places.
[2024-05-23 04:30:44] [INFO ] Redundant transitions in 17 ms returned []
Running 1214 sub problems to find dead transitions.
[2024-05-23 04:30:44] [INFO ] Flow matrix only has 687 transitions (discarded 529 similar events)
[2024-05-23 04:30:44] [INFO ] Invariant cache hit.
[2024-05-23 04:30:44] [INFO ] State equation strengthened by 75 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/420 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1214 unsolved
[2024-05-23 04:30:57] [INFO ] Deduced a trap composed of 131 places in 140 ms of which 2 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/420 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1214 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/420 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1214 unsolved
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
At refinement iteration 3 (OVERLAPS) 687/1107 variables, 420/424 constraints. Problems are: Problem set: 0 solved, 1214 unsolved
SMT process timed out in 33920ms, After SMT, problems are : Problem set: 0 solved, 1214 unsolved
Search for dead transitions found 0 dead transitions in 33930ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 35663 ms. Remains : 420/420 places, 1216/1216 transitions.
[2024-05-23 04:31:18] [INFO ] Flow matrix only has 687 transitions (discarded 529 similar events)
Found an invariant !
This invariant on transitions {244=1, 334=1, 660=1, 685=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 342=1, 668=1, 685=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:[1] Max Struct:[+inf]
RANDOM walk for 36825 steps (8 resets) in 151 ms. (242 steps per ms) remains 0/1 properties
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[1] Max Struct:[+inf]
Ending property specific reduction for FunctionPointer-PT-c004-UpperBounds-12 in 82466 ms.
[2024-05-23 04:31:18] [INFO ] Flatten gal took : 106 ms
[2024-05-23 04:31:18] [INFO ] Export to MCC of 5 properties in file /home/mcc/execution/UpperBounds.sr.xml took 2 ms.
[2024-05-23 04:31:18] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml of net with 452 places, 1283 transitions and 5260 arcs took 8 ms.
Total runtime 1556830 ms.
There are residual formulas that ITS could not solve within timeout
----------------------------------------------------------------------
GreatSPN-meddly tool, MCC 2023
----------------------------------------------------------------------

Running FunctionPointer-PT-c004

IS_COLORED=
IS_NUPN=

LOADING PETRI NET FILE /home/mcc/execution/413/model.pnml (PNML) ...
PNML VERSION 2009, P/T NET.
COLOR CLASSES: 0
CONSTANTS: 0
PLACES: 452
TRANSITIONS: 1283
COLOR VARS: 0
MEASURES: 0
LOADING TIME: [User 0.023s, Sys 0.004s]


SAVING FILE /home/mcc/execution/413/model (.net / .def) ...
EXPORT TIME: [User 0.004s, Sys 0.000s]


----------------------------------------------------------------------
GreatSPN/Meddly.
Copyright (C) 1987-2022, University of Torino, Italy.
website: https://github.com/greatspn/SOURCES

Based on MEDDLY version 0.16.0
Copyright (C) 2009, Iowa State University Research Foundation, Inc.
website: http://meddly.sourceforge.net

Process ID: 2333
MODEL NAME: /home/mcc/execution/413/model
452 places, 1283 transitions.
Enabling coverability test.

Creating all event NSFs..
Creating all event NSFs..
Creating all event NSFs..
Creating all event NSFs..
Building monolithic NSF...
Building monolithic NSF...
Building monolithic NSF...
Building monolithic NSF...
Start RS construction.
Start RS construction.
Start RS construction.
coverability test failed!!
Convergence in 15 steps.
The state space is infinite.
CANNOT_COMPUTE
EXITCODE: 0
----------------------------------------------------------------------

BK_STOP 1716438684639

--------------------
content from stderr:

+ 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//../reducer/bin//../../itstools//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202405141337.jar
+ VERSION=202405141337
+ echo 'Running Version 202405141337'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination UpperBounds -timeout 360 -rebuildPNML

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-c004"
export BK_EXAMINATION="UpperBounds"
export BK_TOOL="greatspnxred"
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 2-5568"
echo " Executing tool greatspnxred"
echo " Input is FunctionPointer-PT-c004, 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 r179-tall-171640601200285"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/FunctionPointer-PT-c004.tgz
mv FunctionPointer-PT-c004 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.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property UpperBounds.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -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 '' UpperBounds.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
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 ;