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Model Checking Contest 2024
14th edition, Geneva, Switzerland, June 25, 2024
Execution of r179-tall-171640601200277
Last Updated
July 7, 2024

About the Execution of GreatSPN+red for FunctionPointer-PT-c002

Execution Summary
Max Memory
Used (MB)		 Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
6880.451 1278966.00 1565539.00 2964.70 ? 0 inf inf ? ? 0 0 0 0 inf 0 inf inf ? 2 normal

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-171640601200277.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-c002, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r179-tall-171640601200277
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 4.6M
-rw-r--r-- 1 mcc users 5.5K May 14 13:22 CTLCardinality.txt
-rw-r--r-- 1 mcc users 54K May 14 13:22 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.8K May 14 13:22 CTLFireability.txt
-rw-r--r-- 1 mcc users 52K May 14 13:22 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.1K Apr 22 14:46 LTLCardinality.txt
-rw-r--r-- 1 mcc users 28K Apr 22 14:46 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Apr 22 14:46 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Apr 22 14:46 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 9.4K May 14 13:22 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 81K 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 15:26 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-c002-UpperBounds-00
FORMULA_NAME FunctionPointer-PT-c002-UpperBounds-01
FORMULA_NAME FunctionPointer-PT-c002-UpperBounds-02
FORMULA_NAME FunctionPointer-PT-c002-UpperBounds-03
FORMULA_NAME FunctionPointer-PT-c002-UpperBounds-04
FORMULA_NAME FunctionPointer-PT-c002-UpperBounds-05
FORMULA_NAME FunctionPointer-PT-c002-UpperBounds-06
FORMULA_NAME FunctionPointer-PT-c002-UpperBounds-07
FORMULA_NAME FunctionPointer-PT-c002-UpperBounds-08
FORMULA_NAME FunctionPointer-PT-c002-UpperBounds-09
FORMULA_NAME FunctionPointer-PT-c002-UpperBounds-10
FORMULA_NAME FunctionPointer-PT-c002-UpperBounds-11
FORMULA_NAME FunctionPointer-PT-c002-UpperBounds-12
FORMULA_NAME FunctionPointer-PT-c002-UpperBounds-13
FORMULA_NAME FunctionPointer-PT-c002-UpperBounds-14
FORMULA_NAME FunctionPointer-PT-c002-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1716433426166

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-c002
BK_MEMORY_CONFINEMENT=16384
Applying reductions before tool greatspn
Invoking reducer
Running Version 202405141337
[2024-05-23 03:03:47] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, UpperBounds, -timeout, 360, -rebuildPNML]
[2024-05-23 03:03:47] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-05-23 03:03:47] [INFO ] Load time of PNML (sax parser for PT used): 398 ms
[2024-05-23 03:03:47] [INFO ] Transformed 2826 places.
[2024-05-23 03:03:47] [INFO ] Transformed 8960 transitions.
[2024-05-23 03:03:47] [INFO ] Parsed PT model containing 2826 places and 8960 transitions and 36096 arcs in 565 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 9 ms.
Deduced a syphon composed of 1198 places in 39 ms
Reduce places removed 1198 places and 2998 transitions.
FORMULA FunctionPointer-PT-c002-UpperBounds-01 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c002-UpperBounds-06 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c002-UpperBounds-07 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c002-UpperBounds-08 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c002-UpperBounds-09 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c002-UpperBounds-11 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
Current structural bounds on expressions (Initially) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 03:03:48] [INFO ] Flow matrix only has 3540 transitions (discarded 2422 similar events)
// Phase 1: matrix 3540 rows 1628 cols
[2024-05-23 03:03:48] [INFO ] Computed 4 invariants in 97 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, 2]
RANDOM walk for 10000 steps (2 resets) in 292 ms. (34 steps per ms)
BEST_FIRST walk for 100006 steps (20 resets) in 305 ms. (326 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 1, 6, 0, 0, 8, 1, 3, 2, 1] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, 2]
[2024-05-23 03:03:48] [INFO ] Flow matrix only has 3540 transitions (discarded 2422 similar events)
[2024-05-23 03:03:48] [INFO ] Invariant cache hit.
[2024-05-23 03:03:49] [INFO ] [Real]Absence check using 3 positive place invariants in 95 ms returned sat
[2024-05-23 03:03:49] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 3 ms returned sat
[2024-05-23 03:03:49] [INFO ] [Real]Absence check using state equation in 750 ms returned sat
[2024-05-23 03:03:50] [INFO ] State equation strengthened by 479 read => feed constraints.
[2024-05-23 03:03:50] [INFO ] [Real]Added 479 Read/Feed constraints in 141 ms returned sat
[2024-05-23 03:03:50] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:03:50] [INFO ] [Nat]Absence check using 3 positive place invariants in 15 ms returned sat
[2024-05-23 03:03:50] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2024-05-23 03:03:51] [INFO ] [Nat]Absence check using state equation in 661 ms returned sat
[2024-05-23 03:03:51] [INFO ] [Nat]Added 479 Read/Feed constraints in 281 ms returned sat
[2024-05-23 03:03:52] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 739 ms.
[2024-05-23 03:03:52] [INFO ] Added : 2 causal constraints over 1 iterations in 1117 ms. Result :sat
Minimization took 593 ms.
[2024-05-23 03:03:53] [INFO ] [Real]Absence check using 3 positive place invariants in 14 ms returned sat
[2024-05-23 03:03:53] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2024-05-23 03:03:54] [INFO ] [Real]Absence check using state equation in 752 ms returned sat
[2024-05-23 03:03:54] [INFO ] [Real]Added 479 Read/Feed constraints in 128 ms returned sat
[2024-05-23 03:03:54] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:03:54] [INFO ] [Nat]Absence check using 3 positive place invariants in 15 ms returned sat
[2024-05-23 03:03:54] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2024-05-23 03:03:55] [INFO ] [Nat]Absence check using state equation in 759 ms returned sat
[2024-05-23 03:03:55] [INFO ] [Nat]Added 479 Read/Feed constraints in 128 ms returned sat
[2024-05-23 03:03:56] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 467 ms.
[2024-05-23 03:03:56] [INFO ] Added : 2 causal constraints over 1 iterations in 801 ms. Result :sat
Minimization took 580 ms.
[2024-05-23 03:03:57] [INFO ] [Real]Absence check using 3 positive place invariants in 13 ms returned sat
[2024-05-23 03:03:57] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2024-05-23 03:03:58] [INFO ] [Real]Absence check using state equation in 722 ms returned sat
[2024-05-23 03:03:58] [INFO ] [Real]Added 479 Read/Feed constraints in 188 ms returned sat
[2024-05-23 03:03:58] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:03:58] [INFO ] [Nat]Absence check using 3 positive place invariants in 14 ms returned sat
[2024-05-23 03:03:58] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2024-05-23 03:03:59] [INFO ] [Nat]Absence check using state equation in 763 ms returned sat
[2024-05-23 03:03:59] [INFO ] [Nat]Added 479 Read/Feed constraints in 112 ms returned sat
[2024-05-23 03:04:00] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 415 ms.
[2024-05-23 03:04:00] [INFO ] Added : 2 causal constraints over 1 iterations in 742 ms. Result :sat
Minimization took 576 ms.
[2024-05-23 03:04:01] [INFO ] [Real]Absence check using 3 positive place invariants in 15 ms returned sat
[2024-05-23 03:04:01] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2024-05-23 03:04:01] [INFO ] [Real]Absence check using state equation in 776 ms returned sat
[2024-05-23 03:04:02] [INFO ] [Real]Added 479 Read/Feed constraints in 121 ms returned sat
[2024-05-23 03:04:02] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:04:02] [INFO ] [Nat]Absence check using 3 positive place invariants in 13 ms returned sat
[2024-05-23 03:04:02] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2024-05-23 03:04:03] [INFO ] [Nat]Absence check using state equation in 719 ms returned sat
[2024-05-23 03:04:03] [INFO ] [Nat]Added 479 Read/Feed constraints in 104 ms returned sat
[2024-05-23 03:04:03] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 491 ms.
[2024-05-23 03:04:05] [INFO ] Deduced a trap composed of 164 places in 1237 ms of which 85 ms to minimize.
[2024-05-23 03:04:05] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 1472 ms
[2024-05-23 03:04:05] [INFO ] Added : 2 causal constraints over 1 iterations in 2386 ms. Result :sat
Minimization took 577 ms.
[2024-05-23 03:04:06] [INFO ] [Real]Absence check using 3 positive place invariants in 14 ms returned sat
[2024-05-23 03:04:06] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2024-05-23 03:04:07] [INFO ] [Real]Absence check using state equation in 767 ms returned sat
[2024-05-23 03:04:07] [INFO ] [Real]Added 479 Read/Feed constraints in 98 ms returned sat
[2024-05-23 03:04:07] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:04:07] [INFO ] [Nat]Absence check using 3 positive place invariants in 14 ms returned sat
[2024-05-23 03:04:07] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2024-05-23 03:04:08] [INFO ] [Nat]Absence check using state equation in 769 ms returned sat
[2024-05-23 03:04:08] [INFO ] [Nat]Added 479 Read/Feed constraints in 89 ms returned sat
[2024-05-23 03:04:09] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 481 ms.
[2024-05-23 03:04:10] [INFO ] Deduced a trap composed of 164 places in 1218 ms of which 12 ms to minimize.
[2024-05-23 03:04:11] [INFO ] Deduced a trap composed of 153 places in 1162 ms of which 11 ms to minimize.
[2024-05-23 03:04:13] [INFO ] Deduced a trap composed of 141 places in 1070 ms of which 11 ms to minimize.
[2024-05-23 03:04:13] [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.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)
[2024-05-23 03:04:13] [INFO ] [Real]Absence check using 3 positive place invariants in 13 ms returned sat
[2024-05-23 03:04:13] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2024-05-23 03:04:13] [INFO ] [Real]Absence check using state equation in 711 ms returned sat
[2024-05-23 03:04:14] [INFO ] [Real]Added 479 Read/Feed constraints in 181 ms returned sat
[2024-05-23 03:04:14] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:04:14] [INFO ] [Nat]Absence check using 3 positive place invariants in 14 ms returned sat
[2024-05-23 03:04:14] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2024-05-23 03:04:15] [INFO ] [Nat]Absence check using state equation in 731 ms returned sat
[2024-05-23 03:04:15] [INFO ] [Nat]Added 479 Read/Feed constraints in 145 ms returned sat
[2024-05-23 03:04:16] [INFO ] Deduced a trap composed of 142 places in 1114 ms of which 10 ms to minimize.
[2024-05-23 03:04:16] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 1298 ms
[2024-05-23 03:04:17] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 412 ms.
[2024-05-23 03:04:17] [INFO ] Added : 2 causal constraints over 1 iterations in 725 ms. Result :sat
Minimization took 576 ms.
[2024-05-23 03:04:18] [INFO ] [Real]Absence check using 3 positive place invariants in 13 ms returned sat
[2024-05-23 03:04:18] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 2 ms returned sat
[2024-05-23 03:04:18] [INFO ] [Real]Absence check using state equation in 708 ms returned sat
[2024-05-23 03:04:19] [INFO ] [Real]Added 479 Read/Feed constraints in 138 ms returned sat
[2024-05-23 03:04:19] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:04:19] [INFO ] [Nat]Absence check using 3 positive place invariants in 14 ms returned sat
[2024-05-23 03:04:19] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2024-05-23 03:04:20] [INFO ] [Nat]Absence check using state equation in 722 ms returned sat
[2024-05-23 03:04:20] [INFO ] [Nat]Added 479 Read/Feed constraints in 136 ms returned sat
[2024-05-23 03:04:20] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 402 ms.
[2024-05-23 03:04:20] [INFO ] Added : 2 causal constraints over 1 iterations in 718 ms. Result :sat
Minimization took 576 ms.
[2024-05-23 03:04:21] [INFO ] [Real]Absence check using 3 positive place invariants in 14 ms returned sat
[2024-05-23 03:04:21] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2024-05-23 03:04:22] [INFO ] [Real]Absence check using state equation in 697 ms returned sat
[2024-05-23 03:04:22] [INFO ] [Real]Added 479 Read/Feed constraints in 109 ms returned sat
[2024-05-23 03:04:22] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:04:22] [INFO ] [Nat]Absence check using 3 positive place invariants in 14 ms returned sat
[2024-05-23 03:04:22] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2024-05-23 03:04:23] [INFO ] [Nat]Absence check using state equation in 698 ms returned sat
[2024-05-23 03:04:23] [INFO ] [Nat]Added 479 Read/Feed constraints in 95 ms returned sat
[2024-05-23 03:04:24] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 403 ms.
[2024-05-23 03:04:24] [INFO ] Added : 1 causal constraints over 1 iterations in 714 ms. Result :sat
Minimization took 576 ms.
[2024-05-23 03:04:25] [INFO ] [Real]Absence check using 3 positive place invariants in 13 ms returned sat
[2024-05-23 03:04:25] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2024-05-23 03:04:25] [INFO ] [Real]Absence check using state equation in 715 ms returned sat
[2024-05-23 03:04:26] [INFO ] [Real]Added 479 Read/Feed constraints in 140 ms returned sat
[2024-05-23 03:04:26] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:04:26] [INFO ] [Nat]Absence check using 3 positive place invariants in 14 ms returned sat
[2024-05-23 03:04:26] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2024-05-23 03:04:27] [INFO ] [Nat]Absence check using state equation in 712 ms returned sat
[2024-05-23 03:04:27] [INFO ] [Nat]Added 479 Read/Feed constraints in 140 ms returned sat
[2024-05-23 03:04:27] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 408 ms.
[2024-05-23 03:04:28] [INFO ] Added : 2 causal constraints over 1 iterations in 725 ms. Result :sat
Minimization took 576 ms.
[2024-05-23 03:04:28] [INFO ] [Real]Absence check using 3 positive place invariants in 14 ms returned sat
[2024-05-23 03:04:28] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2024-05-23 03:04:29] [INFO ] [Real]Absence check using state equation in 714 ms returned sat
[2024-05-23 03:04:29] [INFO ] [Real]Added 479 Read/Feed constraints in 111 ms returned sat
[2024-05-23 03:04:29] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:04:29] [INFO ] [Nat]Absence check using 3 positive place invariants in 14 ms returned sat
[2024-05-23 03:04:29] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2024-05-23 03:04:30] [INFO ] [Nat]Absence check using state equation in 701 ms returned sat
[2024-05-23 03:04:30] [INFO ] [Nat]Added 479 Read/Feed constraints in 97 ms returned sat
[2024-05-23 03:04:31] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 400 ms.
[2024-05-23 03:04:31] [INFO ] Added : 0 causal constraints over 0 iterations in 601 ms. Result :sat
Minimization took 575 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 1, 6, 0, 0, 8, 1, 3, 2, 1] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, 2]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 1, 6, 0, 0, 8, 1, 3, 2, 1] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, 2]
Support contains 10 out of 1628 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 1628/1628 places, 5962/5962 transitions.
Graph (complete) has 7332 edges and 1628 vertex of which 1422 are kept as prefixes of interest. Removing 206 places using SCC suffix rule.13 ms
Discarding 206 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 379 transitions
Reduce isomorphic transitions removed 379 transitions.
Iterating post reduction 0 with 379 rules applied. Total rules applied 380 place count 1422 transition count 5583
Discarding 299 places :
Symmetric choice reduction at 1 with 299 rule applications. Total rules 679 place count 1123 transition count 3293
Iterating global reduction 1 with 299 rules applied. Total rules applied 978 place count 1123 transition count 3293
Ensure Unique test removed 350 transitions
Reduce isomorphic transitions removed 350 transitions.
Iterating post reduction 1 with 350 rules applied. Total rules applied 1328 place count 1123 transition count 2943
Discarding 157 places :
Symmetric choice reduction at 2 with 157 rule applications. Total rules 1485 place count 966 transition count 2629
Iterating global reduction 2 with 157 rules applied. Total rules applied 1642 place count 966 transition count 2629
Ensure Unique test removed 64 transitions
Reduce isomorphic transitions removed 64 transitions.
Iterating post reduction 2 with 64 rules applied. Total rules applied 1706 place count 966 transition count 2565
Discarding 14 places :
Symmetric choice reduction at 3 with 14 rule applications. Total rules 1720 place count 952 transition count 2537
Iterating global reduction 3 with 14 rules applied. Total rules applied 1734 place count 952 transition count 2537
Discarding 14 places :
Symmetric choice reduction at 3 with 14 rule applications. Total rules 1748 place count 938 transition count 2509
Iterating global reduction 3 with 14 rules applied. Total rules applied 1762 place count 938 transition count 2509
Discarding 14 places :
Symmetric choice reduction at 3 with 14 rule applications. Total rules 1776 place count 924 transition count 2481
Iterating global reduction 3 with 14 rules applied. Total rules applied 1790 place count 924 transition count 2481
Discarding 14 places :
Symmetric choice reduction at 3 with 14 rule applications. Total rules 1804 place count 910 transition count 2453
Iterating global reduction 3 with 14 rules applied. Total rules applied 1818 place count 910 transition count 2453
Discarding 14 places :
Symmetric choice reduction at 3 with 14 rule applications. Total rules 1832 place count 896 transition count 2425
Iterating global reduction 3 with 14 rules applied. Total rules applied 1846 place count 896 transition count 2425
Discarding 14 places :
Symmetric choice reduction at 3 with 14 rule applications. Total rules 1860 place count 882 transition count 2397
Iterating global reduction 3 with 14 rules applied. Total rules applied 1874 place count 882 transition count 2397
Discarding 11 places :
Symmetric choice reduction at 3 with 11 rule applications. Total rules 1885 place count 871 transition count 2375
Iterating global reduction 3 with 11 rules applied. Total rules applied 1896 place count 871 transition count 2375
Discarding 58 places :
Symmetric choice reduction at 3 with 58 rule applications. Total rules 1954 place count 813 transition count 2151
Iterating global reduction 3 with 58 rules applied. Total rules applied 2012 place count 813 transition count 2151
Discarding 56 places :
Symmetric choice reduction at 3 with 56 rule applications. Total rules 2068 place count 757 transition count 1927
Iterating global reduction 3 with 56 rules applied. Total rules applied 2124 place count 757 transition count 1927
Discarding 56 places :
Symmetric choice reduction at 3 with 56 rule applications. Total rules 2180 place count 701 transition count 1807
Iterating global reduction 3 with 56 rules applied. Total rules applied 2236 place count 701 transition count 1807
Discarding 56 places :
Symmetric choice reduction at 3 with 56 rule applications. Total rules 2292 place count 645 transition count 1695
Iterating global reduction 3 with 56 rules applied. Total rules applied 2348 place count 645 transition count 1695
Discarding 56 places :
Symmetric choice reduction at 3 with 56 rule applications. Total rules 2404 place count 589 transition count 1583
Iterating global reduction 3 with 56 rules applied. Total rules applied 2460 place count 589 transition count 1583
Discarding 56 places :
Symmetric choice reduction at 3 with 56 rule applications. Total rules 2516 place count 533 transition count 1471
Iterating global reduction 3 with 56 rules applied. Total rules applied 2572 place count 533 transition count 1471
Discarding 55 places :
Symmetric choice reduction at 3 with 55 rule applications. Total rules 2627 place count 478 transition count 1361
Iterating global reduction 3 with 55 rules applied. Total rules applied 2682 place count 478 transition count 1361
Discarding 4 places :
Symmetric choice reduction at 3 with 4 rule applications. Total rules 2686 place count 474 transition count 1353
Iterating global reduction 3 with 4 rules applied. Total rules applied 2690 place count 474 transition count 1353
Drop transitions (Redundant composition of simpler transitions.) removed 16 transitions
Redundant transition composition rules discarded 16 transitions
Iterating global reduction 3 with 16 rules applied. Total rules applied 2706 place count 474 transition count 1337
Applied a total of 2706 rules in 1107 ms. Remains 474 /1628 variables (removed 1154) and now considering 1337/5962 (removed 4625) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1122 ms. Remains : 474/1628 places, 1337/5962 transitions.
[2024-05-23 03:04:33] [INFO ] Flow matrix only has 776 transitions (discarded 561 similar events)
Found an invariant !
This invariant on transitions {255=1, 258=1, 267=1, 391=1, 724=1, 767=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 388=1, 593=1, 756=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 80 ms. (steps per millisecond=125 ) properties (out of 10) seen :[0, 0, 3, 0, 0, 0, 0, 0, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[0, 1, 6, 0, 0, 8, 1, 3, 2, 1] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, 2]
[2024-05-23 03:04:33] [INFO ] Flow matrix only has 776 transitions (discarded 561 similar events)
// Phase 1: matrix 776 rows 474 cols
[2024-05-23 03:04:33] [INFO ] Computed 3 invariants in 4 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 1, 6, 0, 0, 8, 1, 3, 2, 1] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, 2]
RANDOM walk for 1000001 steps (2 resets) in 2239 ms. (446 steps per ms)
BEST_FIRST walk for 10000009 steps (20 resets) in 5661 ms. (1766 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1, 5, 540, 1479, 10, 9, 510, 3, 2, 1] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, 2]
[2024-05-23 03:04:41] [INFO ] Flow matrix only has 776 transitions (discarded 561 similar events)
[2024-05-23 03:04:41] [INFO ] Invariant cache hit.
[2024-05-23 03:04:41] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:04:41] [INFO ] [Real]Absence check using state equation in 147 ms returned sat
[2024-05-23 03:04:41] [INFO ] State equation strengthened by 98 read => feed constraints.
[2024-05-23 03:04:41] [INFO ] [Real]Added 98 Read/Feed constraints in 39 ms returned sat
[2024-05-23 03:04:41] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:04:41] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:04:42] [INFO ] [Nat]Absence check using state equation in 149 ms returned sat
[2024-05-23 03:04:42] [INFO ] [Nat]Added 98 Read/Feed constraints in 50 ms returned sat
[2024-05-23 03:04:42] [INFO ] Deduced a trap composed of 102 places in 204 ms of which 3 ms to minimize.
[2024-05-23 03:04:42] [INFO ] Deduced a trap composed of 90 places in 197 ms of which 3 ms to minimize.
[2024-05-23 03:04:42] [INFO ] Deduced a trap composed of 88 places in 190 ms of which 3 ms to minimize.
[2024-05-23 03:04:43] [INFO ] Deduced a trap composed of 80 places in 188 ms of which 3 ms to minimize.
[2024-05-23 03:04:43] [INFO ] Deduced a trap composed of 78 places in 191 ms of which 3 ms to minimize.
[2024-05-23 03:04:43] [INFO ] Deduced a trap composed of 147 places in 177 ms of which 3 ms to minimize.
[2024-05-23 03:04:43] [INFO ] Trap strengthening (SAT) tested/added 7/6 trap constraints in 1372 ms
[2024-05-23 03:04:43] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 79 ms.
[2024-05-23 03:04:43] [INFO ] Added : 2 causal constraints over 1 iterations in 186 ms. Result :sat
Minimization took 305 ms.
[2024-05-23 03:04:44] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:04:44] [INFO ] [Real]Absence check using state equation in 142 ms returned sat
[2024-05-23 03:04:44] [INFO ] [Real]Added 98 Read/Feed constraints in 34 ms returned sat
[2024-05-23 03:04:44] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:04:44] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:04:44] [INFO ] [Nat]Absence check using state equation in 139 ms returned sat
[2024-05-23 03:04:44] [INFO ] [Nat]Added 98 Read/Feed constraints in 25 ms returned sat
[2024-05-23 03:04:44] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 67 ms.
[2024-05-23 03:04:44] [INFO ] Added : 2 causal constraints over 1 iterations in 164 ms. Result :sat
Minimization took 254 ms.
[2024-05-23 03:04:45] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:04:45] [INFO ] [Real]Absence check using state equation in 141 ms returned sat
[2024-05-23 03:04:45] [INFO ] [Real]Added 98 Read/Feed constraints in 57 ms returned sat
[2024-05-23 03:04:45] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:04:45] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:04:45] [INFO ] [Nat]Absence check using state equation in 139 ms returned sat
[2024-05-23 03:04:45] [INFO ] [Nat]Added 98 Read/Feed constraints in 35 ms returned sat
[2024-05-23 03:04:45] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 67 ms.
[2024-05-23 03:04:45] [INFO ] Added : 2 causal constraints over 1 iterations in 165 ms. Result :sat
Minimization took 257 ms.
[2024-05-23 03:04:46] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:04:46] [INFO ] [Real]Absence check using state equation in 140 ms returned sat
[2024-05-23 03:04:46] [INFO ] [Real]Added 98 Read/Feed constraints in 34 ms returned sat
[2024-05-23 03:04:46] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:04:46] [INFO ] [Nat]Absence check using 3 positive place invariants in 9 ms returned sat
[2024-05-23 03:04:46] [INFO ] [Nat]Absence check using state equation in 142 ms returned sat
[2024-05-23 03:04:46] [INFO ] [Nat]Added 98 Read/Feed constraints in 48 ms returned sat
[2024-05-23 03:04:46] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 68 ms.
[2024-05-23 03:04:46] [INFO ] Added : 2 causal constraints over 1 iterations in 170 ms. Result :sat
Minimization took 260 ms.
[2024-05-23 03:04:47] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:04:47] [INFO ] [Real]Absence check using state equation in 150 ms returned sat
[2024-05-23 03:04:47] [INFO ] [Real]Added 98 Read/Feed constraints in 30 ms returned sat
[2024-05-23 03:04:47] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:04:47] [INFO ] [Nat]Absence check using 3 positive place invariants in 10 ms returned sat
[2024-05-23 03:04:47] [INFO ] [Nat]Absence check using state equation in 139 ms returned sat
[2024-05-23 03:04:47] [INFO ] [Nat]Added 98 Read/Feed constraints in 39 ms returned sat
[2024-05-23 03:04:47] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 66 ms.
[2024-05-23 03:04:47] [INFO ] Added : 2 causal constraints over 1 iterations in 161 ms. Result :sat
Minimization took 258 ms.
[2024-05-23 03:04:48] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:04:48] [INFO ] [Real]Absence check using state equation in 149 ms returned sat
[2024-05-23 03:04:48] [INFO ] [Real]Added 98 Read/Feed constraints in 22 ms returned sat
[2024-05-23 03:04:48] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:04:48] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:04:48] [INFO ] [Nat]Absence check using state equation in 155 ms returned sat
[2024-05-23 03:04:48] [INFO ] [Nat]Added 98 Read/Feed constraints in 23 ms returned sat
[2024-05-23 03:04:48] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 68 ms.
[2024-05-23 03:04:48] [INFO ] Added : 2 causal constraints over 1 iterations in 165 ms. Result :sat
Minimization took 257 ms.
[2024-05-23 03:04:49] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:04:49] [INFO ] [Real]Absence check using state equation in 146 ms returned sat
[2024-05-23 03:04:49] [INFO ] [Real]Added 98 Read/Feed constraints in 55 ms returned sat
[2024-05-23 03:04:49] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:04:49] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:04:49] [INFO ] [Nat]Absence check using state equation in 150 ms returned sat
[2024-05-23 03:04:49] [INFO ] [Nat]Added 98 Read/Feed constraints in 26 ms returned sat
[2024-05-23 03:04:49] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 68 ms.
[2024-05-23 03:04:49] [INFO ] Added : 2 causal constraints over 1 iterations in 159 ms. Result :sat
Minimization took 264 ms.
[2024-05-23 03:04:50] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:04:50] [INFO ] [Real]Absence check using state equation in 149 ms returned sat
[2024-05-23 03:04:50] [INFO ] [Real]Added 98 Read/Feed constraints in 28 ms returned sat
[2024-05-23 03:04:50] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:04:50] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:04:50] [INFO ] [Nat]Absence check using state equation in 149 ms returned sat
[2024-05-23 03:04:50] [INFO ] [Nat]Added 98 Read/Feed constraints in 21 ms returned sat
[2024-05-23 03:04:50] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 72 ms.
[2024-05-23 03:04:50] [INFO ] Added : 1 causal constraints over 1 iterations in 158 ms. Result :sat
Minimization took 253 ms.
[2024-05-23 03:04:51] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:04:51] [INFO ] [Real]Absence check using state equation in 141 ms returned sat
[2024-05-23 03:04:51] [INFO ] [Real]Added 98 Read/Feed constraints in 26 ms returned sat
[2024-05-23 03:04:51] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:04:51] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:04:51] [INFO ] [Nat]Absence check using state equation in 140 ms returned sat
[2024-05-23 03:04:51] [INFO ] [Nat]Added 98 Read/Feed constraints in 27 ms returned sat
[2024-05-23 03:04:51] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 67 ms.
[2024-05-23 03:04:51] [INFO ] Added : 2 causal constraints over 1 iterations in 165 ms. Result :sat
Minimization took 254 ms.
[2024-05-23 03:04:52] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:04:52] [INFO ] [Real]Absence check using state equation in 155 ms returned sat
[2024-05-23 03:04:52] [INFO ] [Real]Added 98 Read/Feed constraints in 35 ms returned sat
[2024-05-23 03:04:52] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:04:52] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:04:52] [INFO ] [Nat]Absence check using state equation in 163 ms returned sat
[2024-05-23 03:04:52] [INFO ] [Nat]Added 98 Read/Feed constraints in 31 ms returned sat
[2024-05-23 03:04:52] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 68 ms.
[2024-05-23 03:04:52] [INFO ] Added : 0 causal constraints over 0 iterations in 134 ms. Result :sat
Minimization took 265 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1, 5, 540, 1479, 10, 9, 510, 3, 2, 1] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, 2]
FORMULA FunctionPointer-PT-c002-UpperBounds-15 2 TECHNIQUES TOPOLOGICAL PARIKH_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1, 5, 540, 1479, 10, 9, 510, 3, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 9 out of 474 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 474/474 places, 1337/1337 transitions.
Applied a total of 0 rules in 61 ms. Remains 474 /474 variables (removed 0) and now considering 1337/1337 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 62 ms. Remains : 474/474 places, 1337/1337 transitions.
[2024-05-23 03:05:02] [INFO ] Flow matrix only has 776 transitions (discarded 561 similar events)
Found an invariant !
This invariant on transitions {255=1, 258=1, 267=1, 391=1, 724=1, 767=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 388=1, 593=1, 756=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 138 ms. (steps per millisecond=72 ) properties (out of 9) seen :[0, 0, 2, 0, 0, 0, 2, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[1, 5, 540, 1479, 10, 9, 510, 3, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 03:05:02] [INFO ] Flow matrix only has 776 transitions (discarded 561 similar events)
[2024-05-23 03:05:02] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[1, 5, 540, 1479, 10, 9, 510, 3, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 2462 ms. (406 steps per ms)
BEST_FIRST walk for 9000008 steps (18 resets) in 5064 ms. (1776 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1, 8, 540, 1479, 10, 492, 513, 3, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 03:05:10] [INFO ] Flow matrix only has 776 transitions (discarded 561 similar events)
[2024-05-23 03:05:10] [INFO ] Invariant cache hit.
[2024-05-23 03:05:10] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:05:10] [INFO ] [Real]Absence check using state equation in 151 ms returned sat
[2024-05-23 03:05:10] [INFO ] State equation strengthened by 98 read => feed constraints.
[2024-05-23 03:05:10] [INFO ] [Real]Added 98 Read/Feed constraints in 36 ms returned sat
[2024-05-23 03:05:10] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:05:10] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:05:10] [INFO ] [Nat]Absence check using state equation in 155 ms returned sat
[2024-05-23 03:05:10] [INFO ] [Nat]Added 98 Read/Feed constraints in 48 ms returned sat
[2024-05-23 03:05:11] [INFO ] Deduced a trap composed of 102 places in 212 ms of which 3 ms to minimize.
[2024-05-23 03:05:11] [INFO ] Deduced a trap composed of 90 places in 201 ms of which 3 ms to minimize.
[2024-05-23 03:05:11] [INFO ] Deduced a trap composed of 88 places in 205 ms of which 3 ms to minimize.
[2024-05-23 03:05:11] [INFO ] Deduced a trap composed of 80 places in 199 ms of which 3 ms to minimize.
[2024-05-23 03:05:11] [INFO ] Deduced a trap composed of 78 places in 199 ms of which 3 ms to minimize.
[2024-05-23 03:05:12] [INFO ] Deduced a trap composed of 147 places in 189 ms of which 3 ms to minimize.
[2024-05-23 03:05:12] [INFO ] Trap strengthening (SAT) tested/added 7/6 trap constraints in 1412 ms
[2024-05-23 03:05:12] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 70 ms.
[2024-05-23 03:05:12] [INFO ] Added : 2 causal constraints over 1 iterations in 169 ms. Result :sat
Minimization took 288 ms.
[2024-05-23 03:05:12] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:05:12] [INFO ] [Real]Absence check using state equation in 146 ms returned sat
[2024-05-23 03:05:12] [INFO ] [Real]Added 98 Read/Feed constraints in 32 ms returned sat
[2024-05-23 03:05:12] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:05:13] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:05:13] [INFO ] [Nat]Absence check using state equation in 150 ms returned sat
[2024-05-23 03:05:13] [INFO ] [Nat]Added 98 Read/Feed constraints in 29 ms returned sat
[2024-05-23 03:05:13] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 69 ms.
[2024-05-23 03:05:13] [INFO ] Added : 2 causal constraints over 1 iterations in 165 ms. Result :sat
Minimization took 267 ms.
[2024-05-23 03:05:13] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:05:13] [INFO ] [Real]Absence check using state equation in 147 ms returned sat
[2024-05-23 03:05:13] [INFO ] [Real]Added 98 Read/Feed constraints in 57 ms returned sat
[2024-05-23 03:05:14] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:05:14] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:05:14] [INFO ] [Nat]Absence check using state equation in 142 ms returned sat
[2024-05-23 03:05:14] [INFO ] [Nat]Added 98 Read/Feed constraints in 29 ms returned sat
[2024-05-23 03:05:14] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 76 ms.
[2024-05-23 03:05:14] [INFO ] Added : 2 causal constraints over 1 iterations in 163 ms. Result :sat
Minimization took 270 ms.
[2024-05-23 03:05:14] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:05:14] [INFO ] [Real]Absence check using state equation in 148 ms returned sat
[2024-05-23 03:05:15] [INFO ] [Real]Added 98 Read/Feed constraints in 27 ms returned sat
[2024-05-23 03:05:15] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:05:15] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:05:15] [INFO ] [Nat]Absence check using state equation in 149 ms returned sat
[2024-05-23 03:05:15] [INFO ] [Nat]Added 98 Read/Feed constraints in 40 ms returned sat
[2024-05-23 03:05:15] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 68 ms.
[2024-05-23 03:05:15] [INFO ] Added : 2 causal constraints over 1 iterations in 165 ms. Result :sat
Minimization took 268 ms.
[2024-05-23 03:05:15] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:05:15] [INFO ] [Real]Absence check using state equation in 154 ms returned sat
[2024-05-23 03:05:16] [INFO ] [Real]Added 98 Read/Feed constraints in 32 ms returned sat
[2024-05-23 03:05:16] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:05:16] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:05:16] [INFO ] [Nat]Absence check using state equation in 140 ms returned sat
[2024-05-23 03:05:16] [INFO ] [Nat]Added 98 Read/Feed constraints in 30 ms returned sat
[2024-05-23 03:05:16] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 72 ms.
[2024-05-23 03:05:16] [INFO ] Added : 2 causal constraints over 1 iterations in 165 ms. Result :sat
Minimization took 260 ms.
[2024-05-23 03:05:16] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:05:16] [INFO ] [Real]Absence check using state equation in 155 ms returned sat
[2024-05-23 03:05:17] [INFO ] [Real]Added 98 Read/Feed constraints in 38 ms returned sat
[2024-05-23 03:05:17] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:05:17] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:05:17] [INFO ] [Nat]Absence check using state equation in 145 ms returned sat
[2024-05-23 03:05:17] [INFO ] [Nat]Added 98 Read/Feed constraints in 25 ms returned sat
[2024-05-23 03:05:17] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 75 ms.
[2024-05-23 03:05:17] [INFO ] Added : 2 causal constraints over 1 iterations in 170 ms. Result :sat
Minimization took 265 ms.
[2024-05-23 03:05:17] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:05:18] [INFO ] [Real]Absence check using state equation in 150 ms returned sat
[2024-05-23 03:05:18] [INFO ] [Real]Added 98 Read/Feed constraints in 56 ms returned sat
[2024-05-23 03:05:18] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:05:18] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:05:18] [INFO ] [Nat]Absence check using state equation in 144 ms returned sat
[2024-05-23 03:05:18] [INFO ] [Nat]Added 98 Read/Feed constraints in 30 ms returned sat
[2024-05-23 03:05:18] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 73 ms.
[2024-05-23 03:05:18] [INFO ] Added : 2 causal constraints over 1 iterations in 171 ms. Result :sat
Minimization took 263 ms.
[2024-05-23 03:05:18] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:05:19] [INFO ] [Real]Absence check using state equation in 148 ms returned sat
[2024-05-23 03:05:19] [INFO ] [Real]Added 98 Read/Feed constraints in 26 ms returned sat
[2024-05-23 03:05:19] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:05:19] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:05:19] [INFO ] [Nat]Absence check using state equation in 146 ms returned sat
[2024-05-23 03:05:19] [INFO ] [Nat]Added 98 Read/Feed constraints in 21 ms returned sat
[2024-05-23 03:05:19] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 68 ms.
[2024-05-23 03:05:19] [INFO ] Added : 1 causal constraints over 1 iterations in 153 ms. Result :sat
Minimization took 247 ms.
[2024-05-23 03:05:19] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:05:20] [INFO ] [Real]Absence check using state equation in 145 ms returned sat
[2024-05-23 03:05:20] [INFO ] [Real]Added 98 Read/Feed constraints in 26 ms returned sat
[2024-05-23 03:05:20] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:05:20] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:05:20] [INFO ] [Nat]Absence check using state equation in 140 ms returned sat
[2024-05-23 03:05:20] [INFO ] [Nat]Added 98 Read/Feed constraints in 34 ms returned sat
[2024-05-23 03:05:20] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 70 ms.
[2024-05-23 03:05:20] [INFO ] Added : 2 causal constraints over 1 iterations in 162 ms. Result :sat
Minimization took 258 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1, 8, 540, 1479, 10, 492, 513, 3, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1, 8, 540, 1479, 10, 492, 513, 3, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 9 out of 474 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 474/474 places, 1337/1337 transitions.
Applied a total of 0 rules in 52 ms. Remains 474 /474 variables (removed 0) and now considering 1337/1337 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 52 ms. Remains : 474/474 places, 1337/1337 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 474/474 places, 1337/1337 transitions.
Applied a total of 0 rules in 59 ms. Remains 474 /474 variables (removed 0) and now considering 1337/1337 (removed 0) transitions.
[2024-05-23 03:05:32] [INFO ] Flow matrix only has 776 transitions (discarded 561 similar events)
[2024-05-23 03:05:32] [INFO ] Invariant cache hit.
[2024-05-23 03:05:32] [INFO ] Implicit Places using invariants in 448 ms returned []
[2024-05-23 03:05:32] [INFO ] Flow matrix only has 776 transitions (discarded 561 similar events)
[2024-05-23 03:05:32] [INFO ] Invariant cache hit.
[2024-05-23 03:05:32] [INFO ] State equation strengthened by 98 read => feed constraints.
[2024-05-23 03:05:33] [INFO ] Implicit Places using invariants and state equation in 1454 ms returned []
Implicit Place search using SMT with State Equation took 1905 ms to find 0 implicit places.
[2024-05-23 03:05:34] [INFO ] Redundant transitions in 81 ms returned []
Running 1335 sub problems to find dead transitions.
[2024-05-23 03:05:34] [INFO ] Flow matrix only has 776 transitions (discarded 561 similar events)
[2024-05-23 03:05:34] [INFO ] Invariant cache hit.
[2024-05-23 03:05:34] [INFO ] State equation strengthened by 98 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/474 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1335 unsolved
[2024-05-23 03:05:50] [INFO ] Deduced a trap composed of 131 places in 147 ms of which 3 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/474 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1335 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 474/1250 variables, and 4 constraints, problems are : Problem set: 0 solved, 1335 unsolved in 30036 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/474 constraints, ReadFeed: 0/98 constraints, PredecessorRefiner: 1335/1335 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1335 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/474 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1335 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/474 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1335 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/474 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1335 unsolved
At refinement iteration 3 (OVERLAPS) 776/1250 variables, 474/478 constraints. Problems are: Problem set: 0 solved, 1335 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1250 variables, 98/576 constraints. Problems are: Problem set: 0 solved, 1335 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/1250 variables, 1335/1911 constraints. Problems are: Problem set: 0 solved, 1335 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1250/1250 variables, and 1911 constraints, problems are : Problem set: 0 solved, 1335 unsolved in 30043 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 474/474 constraints, ReadFeed: 98/98 constraints, PredecessorRefiner: 1335/1335 constraints, Known Traps: 1/1 constraints]
After SMT, in 65152ms problems are : Problem set: 0 solved, 1335 unsolved
Search for dead transitions found 0 dead transitions in 65199ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 67280 ms. Remains : 474/474 places, 1337/1337 transitions.
[2024-05-23 03:06:39] [INFO ] Flow matrix only has 776 transitions (discarded 561 similar events)
Found an invariant !
This invariant on transitions {255=1, 258=1, 267=1, 391=1, 724=1, 767=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 388=1, 593=1, 756=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 40 ms. (steps per millisecond=250 ) properties (out of 9) seen :[0, 0, 2, 0, 0, 0, 0, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[1, 8, 540, 1479, 10, 492, 513, 3, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 03:06:39] [INFO ] Flow matrix only has 776 transitions (discarded 561 similar events)
[2024-05-23 03:06:39] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[1, 8, 540, 1479, 10, 492, 513, 3, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000003 steps (2 resets) in 2391 ms. (418 steps per ms)
BEST_FIRST walk for 9000008 steps (18 resets) in 5270 ms. (1707 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1, 1385, 540, 1479, 10, 492, 513, 3, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 03:06:47] [INFO ] Flow matrix only has 776 transitions (discarded 561 similar events)
[2024-05-23 03:06:47] [INFO ] Invariant cache hit.
[2024-05-23 03:06:47] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:06:47] [INFO ] [Real]Absence check using state equation in 153 ms returned sat
[2024-05-23 03:06:47] [INFO ] State equation strengthened by 98 read => feed constraints.
[2024-05-23 03:06:47] [INFO ] [Real]Added 98 Read/Feed constraints in 38 ms returned sat
[2024-05-23 03:06:47] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:06:47] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:06:47] [INFO ] [Nat]Absence check using state equation in 145 ms returned sat
[2024-05-23 03:06:47] [INFO ] [Nat]Added 98 Read/Feed constraints in 50 ms returned sat
[2024-05-23 03:06:48] [INFO ] Deduced a trap composed of 102 places in 200 ms of which 3 ms to minimize.
[2024-05-23 03:06:48] [INFO ] Deduced a trap composed of 90 places in 204 ms of which 3 ms to minimize.
[2024-05-23 03:06:48] [INFO ] Deduced a trap composed of 88 places in 195 ms of which 3 ms to minimize.
[2024-05-23 03:06:48] [INFO ] Deduced a trap composed of 80 places in 203 ms of which 3 ms to minimize.
[2024-05-23 03:06:48] [INFO ] Deduced a trap composed of 78 places in 196 ms of which 3 ms to minimize.
[2024-05-23 03:06:49] [INFO ] Deduced a trap composed of 147 places in 174 ms of which 3 ms to minimize.
[2024-05-23 03:06:49] [INFO ] Trap strengthening (SAT) tested/added 7/6 trap constraints in 1380 ms
[2024-05-23 03:06:49] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 67 ms.
[2024-05-23 03:06:49] [INFO ] Added : 2 causal constraints over 1 iterations in 161 ms. Result :sat
Minimization took 277 ms.
[2024-05-23 03:06:49] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:06:49] [INFO ] [Real]Absence check using state equation in 151 ms returned sat
[2024-05-23 03:06:49] [INFO ] [Real]Added 98 Read/Feed constraints in 39 ms returned sat
[2024-05-23 03:06:49] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:06:50] [INFO ] [Nat]Absence check using 3 positive place invariants in 6 ms returned sat
[2024-05-23 03:06:50] [INFO ] [Nat]Absence check using state equation in 147 ms returned sat
[2024-05-23 03:06:50] [INFO ] [Nat]Added 98 Read/Feed constraints in 26 ms returned sat
[2024-05-23 03:06:50] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 69 ms.
[2024-05-23 03:06:50] [INFO ] Added : 2 causal constraints over 1 iterations in 161 ms. Result :sat
Minimization took 262 ms.
[2024-05-23 03:06:50] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:06:50] [INFO ] [Real]Absence check using state equation in 155 ms returned sat
[2024-05-23 03:06:51] [INFO ] [Real]Added 98 Read/Feed constraints in 57 ms returned sat
[2024-05-23 03:06:51] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:06:51] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:06:51] [INFO ] [Nat]Absence check using state equation in 149 ms returned sat
[2024-05-23 03:06:51] [INFO ] [Nat]Added 98 Read/Feed constraints in 29 ms returned sat
[2024-05-23 03:06:51] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 115 ms.
[2024-05-23 03:06:51] [INFO ] Added : 2 causal constraints over 1 iterations in 207 ms. Result :sat
Minimization took 270 ms.
[2024-05-23 03:06:51] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:06:52] [INFO ] [Real]Absence check using state equation in 150 ms returned sat
[2024-05-23 03:06:52] [INFO ] [Real]Added 98 Read/Feed constraints in 29 ms returned sat
[2024-05-23 03:06:52] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:06:52] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:06:52] [INFO ] [Nat]Absence check using state equation in 153 ms returned sat
[2024-05-23 03:06:52] [INFO ] [Nat]Added 98 Read/Feed constraints in 42 ms returned sat
[2024-05-23 03:06:52] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 84 ms.
[2024-05-23 03:06:52] [INFO ] Added : 2 causal constraints over 1 iterations in 180 ms. Result :sat
Minimization took 269 ms.
[2024-05-23 03:06:52] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:06:53] [INFO ] [Real]Absence check using state equation in 160 ms returned sat
[2024-05-23 03:06:53] [INFO ] [Real]Added 98 Read/Feed constraints in 32 ms returned sat
[2024-05-23 03:06:53] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:06:53] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:06:53] [INFO ] [Nat]Absence check using state equation in 151 ms returned sat
[2024-05-23 03:06:53] [INFO ] [Nat]Added 98 Read/Feed constraints in 32 ms returned sat
[2024-05-23 03:06:53] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 87 ms.
[2024-05-23 03:06:53] [INFO ] Added : 2 causal constraints over 1 iterations in 190 ms. Result :sat
Minimization took 266 ms.
[2024-05-23 03:06:53] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:06:54] [INFO ] [Real]Absence check using state equation in 159 ms returned sat
[2024-05-23 03:06:54] [INFO ] [Real]Added 98 Read/Feed constraints in 42 ms returned sat
[2024-05-23 03:06:54] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:06:54] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:06:54] [INFO ] [Nat]Absence check using state equation in 147 ms returned sat
[2024-05-23 03:06:54] [INFO ] [Nat]Added 98 Read/Feed constraints in 30 ms returned sat
[2024-05-23 03:06:54] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 82 ms.
[2024-05-23 03:06:54] [INFO ] Added : 2 causal constraints over 1 iterations in 176 ms. Result :sat
Minimization took 266 ms.
[2024-05-23 03:06:55] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:06:55] [INFO ] [Real]Absence check using state equation in 152 ms returned sat
[2024-05-23 03:06:55] [INFO ] [Real]Added 98 Read/Feed constraints in 57 ms returned sat
[2024-05-23 03:06:55] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:06:55] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:06:55] [INFO ] [Nat]Absence check using state equation in 150 ms returned sat
[2024-05-23 03:06:55] [INFO ] [Nat]Added 98 Read/Feed constraints in 27 ms returned sat
[2024-05-23 03:06:55] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 68 ms.
[2024-05-23 03:06:55] [INFO ] Added : 2 causal constraints over 1 iterations in 153 ms. Result :sat
Minimization took 261 ms.
[2024-05-23 03:06:56] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:06:56] [INFO ] [Real]Absence check using state equation in 149 ms returned sat
[2024-05-23 03:06:56] [INFO ] [Real]Added 98 Read/Feed constraints in 28 ms returned sat
[2024-05-23 03:06:56] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:06:56] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:06:56] [INFO ] [Nat]Absence check using state equation in 144 ms returned sat
[2024-05-23 03:06:56] [INFO ] [Nat]Added 98 Read/Feed constraints in 22 ms returned sat
[2024-05-23 03:06:56] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 72 ms.
[2024-05-23 03:06:56] [INFO ] Added : 1 causal constraints over 1 iterations in 169 ms. Result :sat
Minimization took 259 ms.
[2024-05-23 03:06:57] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:06:57] [INFO ] [Real]Absence check using state equation in 149 ms returned sat
[2024-05-23 03:06:57] [INFO ] [Real]Added 98 Read/Feed constraints in 27 ms returned sat
[2024-05-23 03:06:57] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:06:57] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:06:57] [INFO ] [Nat]Absence check using state equation in 146 ms returned sat
[2024-05-23 03:06:57] [INFO ] [Nat]Added 98 Read/Feed constraints in 29 ms returned sat
[2024-05-23 03:06:57] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 68 ms.
[2024-05-23 03:06:57] [INFO ] Added : 2 causal constraints over 1 iterations in 160 ms. Result :sat
Minimization took 261 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1, 1385, 540, 1479, 10, 492, 513, 3, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[2, 1385, 540, 1479, 10, 492, 513, 7, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 9 out of 474 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 474/474 places, 1337/1337 transitions.
Applied a total of 0 rules in 57 ms. Remains 474 /474 variables (removed 0) and now considering 1337/1337 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 57 ms. Remains : 474/474 places, 1337/1337 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 474/474 places, 1337/1337 transitions.
Applied a total of 0 rules in 49 ms. Remains 474 /474 variables (removed 0) and now considering 1337/1337 (removed 0) transitions.
[2024-05-23 03:07:14] [INFO ] Flow matrix only has 776 transitions (discarded 561 similar events)
[2024-05-23 03:07:14] [INFO ] Invariant cache hit.
[2024-05-23 03:07:14] [INFO ] Implicit Places using invariants in 344 ms returned []
[2024-05-23 03:07:14] [INFO ] Flow matrix only has 776 transitions (discarded 561 similar events)
[2024-05-23 03:07:14] [INFO ] Invariant cache hit.
[2024-05-23 03:07:14] [INFO ] State equation strengthened by 98 read => feed constraints.
[2024-05-23 03:07:15] [INFO ] Implicit Places using invariants and state equation in 1438 ms returned []
Implicit Place search using SMT with State Equation took 1783 ms to find 0 implicit places.
[2024-05-23 03:07:15] [INFO ] Redundant transitions in 28 ms returned []
Running 1335 sub problems to find dead transitions.
[2024-05-23 03:07:15] [INFO ] Flow matrix only has 776 transitions (discarded 561 similar events)
[2024-05-23 03:07:15] [INFO ] Invariant cache hit.
[2024-05-23 03:07:15] [INFO ] State equation strengthened by 98 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/474 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1335 unsolved
[2024-05-23 03:07:32] [INFO ] Deduced a trap composed of 131 places in 159 ms of which 3 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/474 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1335 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 474/1250 variables, and 4 constraints, problems are : Problem set: 0 solved, 1335 unsolved in 30026 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/474 constraints, ReadFeed: 0/98 constraints, PredecessorRefiner: 1335/1335 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1335 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/474 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1335 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/474 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1335 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/474 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1335 unsolved
At refinement iteration 3 (OVERLAPS) 776/1250 variables, 474/478 constraints. Problems are: Problem set: 0 solved, 1335 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1250 variables, 98/576 constraints. Problems are: Problem set: 0 solved, 1335 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/1250 variables, 1335/1911 constraints. Problems are: Problem set: 0 solved, 1335 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1250/1250 variables, and 1911 constraints, problems are : Problem set: 0 solved, 1335 unsolved in 30032 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 474/474 constraints, ReadFeed: 98/98 constraints, PredecessorRefiner: 1335/1335 constraints, Known Traps: 1/1 constraints]
After SMT, in 64685ms problems are : Problem set: 0 solved, 1335 unsolved
Search for dead transitions found 0 dead transitions in 64697ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 66564 ms. Remains : 474/474 places, 1337/1337 transitions.
[2024-05-23 03:08:20] [INFO ] Flow matrix only has 776 transitions (discarded 561 similar events)
Found an invariant !
This invariant on transitions {255=1, 258=1, 267=1, 391=1, 724=1, 767=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 388=1, 593=1, 756=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 9) seen :[0, 0, 0, 0, 0, 1, 0, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[2, 1385, 540, 1479, 10, 492, 513, 7, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 03:08:20] [INFO ] Flow matrix only has 776 transitions (discarded 561 similar events)
[2024-05-23 03:08:20] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[2, 1385, 540, 1479, 10, 492, 513, 7, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 2320 ms. (430 steps per ms)
BEST_FIRST walk for 9000006 steps (18 resets) in 5132 ms. (1753 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2, 1385, 540, 1479, 10, 524, 513, 7, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 03:08:28] [INFO ] Flow matrix only has 776 transitions (discarded 561 similar events)
[2024-05-23 03:08:28] [INFO ] Invariant cache hit.
[2024-05-23 03:08:28] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:08:28] [INFO ] [Real]Absence check using state equation in 160 ms returned sat
[2024-05-23 03:08:28] [INFO ] State equation strengthened by 98 read => feed constraints.
[2024-05-23 03:08:28] [INFO ] [Real]Added 98 Read/Feed constraints in 36 ms returned sat
[2024-05-23 03:08:28] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:08:28] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:08:28] [INFO ] [Nat]Absence check using state equation in 152 ms returned sat
[2024-05-23 03:08:28] [INFO ] [Nat]Added 98 Read/Feed constraints in 50 ms returned sat
[2024-05-23 03:08:29] [INFO ] Deduced a trap composed of 102 places in 211 ms of which 3 ms to minimize.
[2024-05-23 03:08:29] [INFO ] Deduced a trap composed of 90 places in 209 ms of which 3 ms to minimize.
[2024-05-23 03:08:29] [INFO ] Deduced a trap composed of 88 places in 201 ms of which 3 ms to minimize.
[2024-05-23 03:08:29] [INFO ] Deduced a trap composed of 83 places in 200 ms of which 3 ms to minimize.
[2024-05-23 03:08:30] [INFO ] Deduced a trap composed of 80 places in 199 ms of which 3 ms to minimize.
[2024-05-23 03:08:30] [INFO ] Deduced a trap composed of 147 places in 176 ms of which 3 ms to minimize.
[2024-05-23 03:08:30] [INFO ] Trap strengthening (SAT) tested/added 7/6 trap constraints in 1369 ms
[2024-05-23 03:08:30] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 70 ms.
[2024-05-23 03:08:30] [INFO ] Added : 2 causal constraints over 1 iterations in 174 ms. Result :sat
Minimization took 276 ms.
[2024-05-23 03:08:30] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:08:30] [INFO ] [Real]Absence check using state equation in 155 ms returned sat
[2024-05-23 03:08:31] [INFO ] [Real]Added 98 Read/Feed constraints in 41 ms returned sat
[2024-05-23 03:08:31] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:08:31] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:08:31] [INFO ] [Nat]Absence check using state equation in 144 ms returned sat
[2024-05-23 03:08:31] [INFO ] [Nat]Added 98 Read/Feed constraints in 26 ms returned sat
[2024-05-23 03:08:31] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 69 ms.
[2024-05-23 03:08:31] [INFO ] Added : 2 causal constraints over 1 iterations in 160 ms. Result :sat
Minimization took 266 ms.
[2024-05-23 03:08:31] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:08:31] [INFO ] [Real]Absence check using state equation in 153 ms returned sat
[2024-05-23 03:08:32] [INFO ] [Real]Added 98 Read/Feed constraints in 60 ms returned sat
[2024-05-23 03:08:32] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:08:32] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:08:32] [INFO ] [Nat]Absence check using state equation in 148 ms returned sat
[2024-05-23 03:08:32] [INFO ] [Nat]Added 98 Read/Feed constraints in 30 ms returned sat
[2024-05-23 03:08:32] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 70 ms.
[2024-05-23 03:08:32] [INFO ] Added : 2 causal constraints over 1 iterations in 169 ms. Result :sat
Minimization took 271 ms.
[2024-05-23 03:08:32] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:08:33] [INFO ] [Real]Absence check using state equation in 149 ms returned sat
[2024-05-23 03:08:33] [INFO ] [Real]Added 98 Read/Feed constraints in 36 ms returned sat
[2024-05-23 03:08:33] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:08:33] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:08:33] [INFO ] [Nat]Absence check using state equation in 143 ms returned sat
[2024-05-23 03:08:33] [INFO ] [Nat]Added 98 Read/Feed constraints in 41 ms returned sat
[2024-05-23 03:08:33] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 70 ms.
[2024-05-23 03:08:33] [INFO ] Added : 2 causal constraints over 1 iterations in 163 ms. Result :sat
Minimization took 270 ms.
[2024-05-23 03:08:33] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:08:34] [INFO ] [Real]Absence check using state equation in 162 ms returned sat
[2024-05-23 03:08:34] [INFO ] [Real]Added 98 Read/Feed constraints in 32 ms returned sat
[2024-05-23 03:08:34] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:08:34] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:08:34] [INFO ] [Nat]Absence check using state equation in 150 ms returned sat
[2024-05-23 03:08:34] [INFO ] [Nat]Added 98 Read/Feed constraints in 32 ms returned sat
[2024-05-23 03:08:34] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 70 ms.
[2024-05-23 03:08:34] [INFO ] Added : 2 causal constraints over 1 iterations in 176 ms. Result :sat
Minimization took 267 ms.
[2024-05-23 03:08:34] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:08:35] [INFO ] [Real]Absence check using state equation in 155 ms returned sat
[2024-05-23 03:08:35] [INFO ] [Real]Added 98 Read/Feed constraints in 39 ms returned sat
[2024-05-23 03:08:35] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:08:35] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:08:35] [INFO ] [Nat]Absence check using state equation in 147 ms returned sat
[2024-05-23 03:08:35] [INFO ] [Nat]Added 98 Read/Feed constraints in 26 ms returned sat
[2024-05-23 03:08:35] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 74 ms.
[2024-05-23 03:08:35] [INFO ] Added : 2 causal constraints over 1 iterations in 178 ms. Result :sat
Minimization took 268 ms.
[2024-05-23 03:08:36] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:08:36] [INFO ] [Real]Absence check using state equation in 155 ms returned sat
[2024-05-23 03:08:36] [INFO ] [Real]Added 98 Read/Feed constraints in 56 ms returned sat
[2024-05-23 03:08:36] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:08:36] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:08:36] [INFO ] [Nat]Absence check using state equation in 155 ms returned sat
[2024-05-23 03:08:36] [INFO ] [Nat]Added 98 Read/Feed constraints in 25 ms returned sat
[2024-05-23 03:08:36] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 69 ms.
[2024-05-23 03:08:36] [INFO ] Added : 2 causal constraints over 1 iterations in 174 ms. Result :sat
Minimization took 269 ms.
[2024-05-23 03:08:37] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:08:37] [INFO ] [Real]Absence check using state equation in 145 ms returned sat
[2024-05-23 03:08:37] [INFO ] [Real]Added 98 Read/Feed constraints in 26 ms returned sat
[2024-05-23 03:08:37] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:08:37] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:08:37] [INFO ] [Nat]Absence check using state equation in 147 ms returned sat
[2024-05-23 03:08:37] [INFO ] [Nat]Added 98 Read/Feed constraints in 24 ms returned sat
[2024-05-23 03:08:37] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 68 ms.
[2024-05-23 03:08:37] [INFO ] Added : 1 causal constraints over 1 iterations in 170 ms. Result :sat
Minimization took 259 ms.
[2024-05-23 03:08:38] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:08:38] [INFO ] [Real]Absence check using state equation in 155 ms returned sat
[2024-05-23 03:08:38] [INFO ] [Real]Added 98 Read/Feed constraints in 25 ms returned sat
[2024-05-23 03:08:38] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:08:38] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:08:38] [INFO ] [Nat]Absence check using state equation in 151 ms returned sat
[2024-05-23 03:08:38] [INFO ] [Nat]Added 98 Read/Feed constraints in 29 ms returned sat
[2024-05-23 03:08:38] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 67 ms.
[2024-05-23 03:08:38] [INFO ] Added : 2 causal constraints over 1 iterations in 162 ms. Result :sat
Minimization took 265 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[2, 1385, 540, 1479, 10, 524, 513, 7, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[2, 1385, 540, 1479, 10, 524, 513, 7, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 9 out of 474 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 474/474 places, 1337/1337 transitions.
Applied a total of 0 rules in 49 ms. Remains 474 /474 variables (removed 0) and now considering 1337/1337 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 49 ms. Remains : 474/474 places, 1337/1337 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 474/474 places, 1337/1337 transitions.
Applied a total of 0 rules in 49 ms. Remains 474 /474 variables (removed 0) and now considering 1337/1337 (removed 0) transitions.
[2024-05-23 03:08:55] [INFO ] Flow matrix only has 776 transitions (discarded 561 similar events)
[2024-05-23 03:08:55] [INFO ] Invariant cache hit.
[2024-05-23 03:08:55] [INFO ] Implicit Places using invariants in 335 ms returned []
[2024-05-23 03:08:55] [INFO ] Flow matrix only has 776 transitions (discarded 561 similar events)
[2024-05-23 03:08:55] [INFO ] Invariant cache hit.
[2024-05-23 03:08:56] [INFO ] State equation strengthened by 98 read => feed constraints.
[2024-05-23 03:08:57] [INFO ] Implicit Places using invariants and state equation in 1425 ms returned []
Implicit Place search using SMT with State Equation took 1761 ms to find 0 implicit places.
[2024-05-23 03:08:57] [INFO ] Redundant transitions in 18 ms returned []
Running 1335 sub problems to find dead transitions.
[2024-05-23 03:08:57] [INFO ] Flow matrix only has 776 transitions (discarded 561 similar events)
[2024-05-23 03:08:57] [INFO ] Invariant cache hit.
[2024-05-23 03:08:57] [INFO ] State equation strengthened by 98 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/474 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1335 unsolved
[2024-05-23 03:09:13] [INFO ] Deduced a trap composed of 131 places in 148 ms of which 2 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/474 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1335 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 474/1250 variables, and 4 constraints, problems are : Problem set: 0 solved, 1335 unsolved in 30023 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/474 constraints, ReadFeed: 0/98 constraints, PredecessorRefiner: 1335/1335 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1335 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/474 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1335 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/474 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1335 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/474 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1335 unsolved
At refinement iteration 3 (OVERLAPS) 776/1250 variables, 474/478 constraints. Problems are: Problem set: 0 solved, 1335 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1250 variables, 98/576 constraints. Problems are: Problem set: 0 solved, 1335 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/1250 variables, 1335/1911 constraints. Problems are: Problem set: 0 solved, 1335 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1250/1250 variables, and 1911 constraints, problems are : Problem set: 0 solved, 1335 unsolved in 30036 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 474/474 constraints, ReadFeed: 98/98 constraints, PredecessorRefiner: 1335/1335 constraints, Known Traps: 1/1 constraints]
After SMT, in 64328ms problems are : Problem set: 0 solved, 1335 unsolved
Search for dead transitions found 0 dead transitions in 64340ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 66180 ms. Remains : 474/474 places, 1337/1337 transitions.
[2024-05-23 03:10:01] [INFO ] Flow matrix only has 776 transitions (discarded 561 similar events)
Found an invariant !
This invariant on transitions {255=1, 258=1, 267=1, 391=1, 724=1, 767=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 388=1, 593=1, 756=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 9) seen :[2, 0, 0, 0, 0, 2147483647, 2, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[2, 1385, 540, 1479, 10, +inf, 513, 7, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 03:10:01] [INFO ] Flow matrix only has 776 transitions (discarded 561 similar events)
[2024-05-23 03:10:01] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[2, 1385, 540, 1479, 10, +inf, 513, 7, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 2308 ms. (433 steps per ms)
FORMULA FunctionPointer-PT-c002-UpperBounds-10 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 8000008 steps (16 resets) in 4620 ms. (1731 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2, 1385, 540, 1479, 10, 1332, 10, 4] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 03:10:08] [INFO ] Flow matrix only has 776 transitions (discarded 561 similar events)
[2024-05-23 03:10:08] [INFO ] Invariant cache hit.
[2024-05-23 03:10:08] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:10:09] [INFO ] [Real]Absence check using state equation in 151 ms returned sat
[2024-05-23 03:10:09] [INFO ] State equation strengthened by 98 read => feed constraints.
[2024-05-23 03:10:09] [INFO ] [Real]Added 98 Read/Feed constraints in 37 ms returned sat
[2024-05-23 03:10:09] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:10:09] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:10:09] [INFO ] [Nat]Absence check using state equation in 150 ms returned sat
[2024-05-23 03:10:09] [INFO ] [Nat]Added 98 Read/Feed constraints in 48 ms returned sat
[2024-05-23 03:10:09] [INFO ] Deduced a trap composed of 102 places in 211 ms of which 3 ms to minimize.
[2024-05-23 03:10:09] [INFO ] Deduced a trap composed of 90 places in 208 ms of which 3 ms to minimize.
[2024-05-23 03:10:10] [INFO ] Deduced a trap composed of 88 places in 212 ms of which 5 ms to minimize.
[2024-05-23 03:10:10] [INFO ] Deduced a trap composed of 83 places in 201 ms of which 3 ms to minimize.
[2024-05-23 03:10:10] [INFO ] Deduced a trap composed of 80 places in 204 ms of which 3 ms to minimize.
[2024-05-23 03:10:10] [INFO ] Deduced a trap composed of 147 places in 174 ms of which 3 ms to minimize.
[2024-05-23 03:10:10] [INFO ] Trap strengthening (SAT) tested/added 7/6 trap constraints in 1373 ms
[2024-05-23 03:10:10] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 70 ms.
[2024-05-23 03:10:11] [INFO ] Added : 2 causal constraints over 1 iterations in 173 ms. Result :sat
Minimization took 269 ms.
[2024-05-23 03:10:11] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:10:11] [INFO ] [Real]Absence check using state equation in 153 ms returned sat
[2024-05-23 03:10:11] [INFO ] [Real]Added 98 Read/Feed constraints in 40 ms returned sat
[2024-05-23 03:10:11] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:10:11] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:10:11] [INFO ] [Nat]Absence check using state equation in 150 ms returned sat
[2024-05-23 03:10:11] [INFO ] [Nat]Added 98 Read/Feed constraints in 27 ms returned sat
[2024-05-23 03:10:11] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 70 ms.
[2024-05-23 03:10:12] [INFO ] Added : 2 causal constraints over 1 iterations in 160 ms. Result :sat
Minimization took 269 ms.
[2024-05-23 03:10:12] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:10:12] [INFO ] [Real]Absence check using state equation in 153 ms returned sat
[2024-05-23 03:10:12] [INFO ] [Real]Added 98 Read/Feed constraints in 57 ms returned sat
[2024-05-23 03:10:12] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:10:12] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:10:12] [INFO ] [Nat]Absence check using state equation in 149 ms returned sat
[2024-05-23 03:10:12] [INFO ] [Nat]Added 98 Read/Feed constraints in 30 ms returned sat
[2024-05-23 03:10:13] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 70 ms.
[2024-05-23 03:10:13] [INFO ] Added : 2 causal constraints over 1 iterations in 161 ms. Result :sat
Minimization took 269 ms.
[2024-05-23 03:10:13] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:10:13] [INFO ] [Real]Absence check using state equation in 152 ms returned sat
[2024-05-23 03:10:13] [INFO ] [Real]Added 98 Read/Feed constraints in 27 ms returned sat
[2024-05-23 03:10:13] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:10:13] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:10:13] [INFO ] [Nat]Absence check using state equation in 151 ms returned sat
[2024-05-23 03:10:13] [INFO ] [Nat]Added 98 Read/Feed constraints in 51 ms returned sat
[2024-05-23 03:10:14] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 70 ms.
[2024-05-23 03:10:14] [INFO ] Added : 2 causal constraints over 1 iterations in 163 ms. Result :sat
Minimization took 273 ms.
[2024-05-23 03:10:14] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:10:14] [INFO ] [Real]Absence check using state equation in 164 ms returned sat
[2024-05-23 03:10:14] [INFO ] [Real]Added 98 Read/Feed constraints in 32 ms returned sat
[2024-05-23 03:10:14] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:10:14] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:10:14] [INFO ] [Nat]Absence check using state equation in 146 ms returned sat
[2024-05-23 03:10:14] [INFO ] [Nat]Added 98 Read/Feed constraints in 38 ms returned sat
[2024-05-23 03:10:15] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 70 ms.
[2024-05-23 03:10:15] [INFO ] Added : 2 causal constraints over 1 iterations in 169 ms. Result :sat
Minimization took 269 ms.
[2024-05-23 03:10:15] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:10:15] [INFO ] [Real]Absence check using state equation in 161 ms returned sat
[2024-05-23 03:10:15] [INFO ] [Real]Added 98 Read/Feed constraints in 58 ms returned sat
[2024-05-23 03:10:15] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:10:15] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:10:16] [INFO ] [Nat]Absence check using state equation in 149 ms returned sat
[2024-05-23 03:10:16] [INFO ] [Nat]Added 98 Read/Feed constraints in 26 ms returned sat
[2024-05-23 03:10:16] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 70 ms.
[2024-05-23 03:10:16] [INFO ] Added : 2 causal constraints over 1 iterations in 173 ms. Result :sat
Minimization took 266 ms.
[2024-05-23 03:10:16] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:10:16] [INFO ] [Real]Absence check using state equation in 149 ms returned sat
[2024-05-23 03:10:16] [INFO ] [Real]Added 98 Read/Feed constraints in 30 ms returned sat
[2024-05-23 03:10:16] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:10:16] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:10:17] [INFO ] [Nat]Absence check using state equation in 151 ms returned sat
[2024-05-23 03:10:17] [INFO ] [Nat]Added 98 Read/Feed constraints in 23 ms returned sat
[2024-05-23 03:10:17] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 70 ms.
[2024-05-23 03:10:17] [INFO ] Added : 1 causal constraints over 1 iterations in 162 ms. Result :sat
Minimization took 258 ms.
[2024-05-23 03:10:17] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:10:17] [INFO ] [Real]Absence check using state equation in 153 ms returned sat
[2024-05-23 03:10:17] [INFO ] [Real]Added 98 Read/Feed constraints in 28 ms returned sat
[2024-05-23 03:10:17] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:10:17] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:10:18] [INFO ] [Nat]Absence check using state equation in 160 ms returned sat
[2024-05-23 03:10:18] [INFO ] [Nat]Added 98 Read/Feed constraints in 31 ms returned sat
[2024-05-23 03:10:18] [INFO ] Computed and/alt/rep : 104/107/84 causal constraints (skipped 690 transitions) in 71 ms.
[2024-05-23 03:10:18] [INFO ] Added : 2 causal constraints over 1 iterations in 166 ms. Result :sat
Minimization took 262 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[2, 1385, 540, 1479, 10, 1332, 10, 4] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[2, 1385, 540, 1479, 10, 1332, 10, 4] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 8 out of 474 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 474/474 places, 1337/1337 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 473 transition count 1335
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 473 transition count 1335
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 4 place count 473 transition count 1333
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 5 place count 472 transition count 1331
Iterating global reduction 1 with 1 rules applied. Total rules applied 6 place count 472 transition count 1331
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 7 place count 471 transition count 1329
Iterating global reduction 1 with 1 rules applied. Total rules applied 8 place count 471 transition count 1329
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 9 place count 470 transition count 1325
Iterating global reduction 1 with 1 rules applied. Total rules applied 10 place count 470 transition count 1325
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 11 place count 469 transition count 1323
Iterating global reduction 1 with 1 rules applied. Total rules applied 12 place count 469 transition count 1323
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 13 place count 468 transition count 1321
Iterating global reduction 1 with 1 rules applied. Total rules applied 14 place count 468 transition count 1321
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 15 place count 467 transition count 1319
Iterating global reduction 1 with 1 rules applied. Total rules applied 16 place count 467 transition count 1319
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 17 place count 466 transition count 1317
Iterating global reduction 1 with 1 rules applied. Total rules applied 18 place count 466 transition count 1317
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 19 place count 465 transition count 1315
Iterating global reduction 1 with 1 rules applied. Total rules applied 20 place count 465 transition count 1315
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 21 place count 464 transition count 1313
Iterating global reduction 1 with 1 rules applied. Total rules applied 22 place count 464 transition count 1313
Applied a total of 22 rules in 149 ms. Remains 464 /474 variables (removed 10) and now considering 1313/1337 (removed 24) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 150 ms. Remains : 464/474 places, 1313/1337 transitions.
[2024-05-23 03:10:36] [INFO ] Flow matrix only has 760 transitions (discarded 553 similar events)
Found an invariant !
This invariant on transitions {255=1, 381=1, 585=1, 745=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, 706=1, 751=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 8) seen :[0, 0, 2, 0, 0, 0, 3, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[2, 1385, 540, 1479, 10, 1332, 10, 4] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 03:10:37] [INFO ] Flow matrix only has 760 transitions (discarded 553 similar events)
// Phase 1: matrix 760 rows 464 cols
[2024-05-23 03:10:37] [INFO ] Computed 3 invariants in 10 ms
Current structural bounds on expressions (after invariants) : Max Seen:[2, 1385, 540, 1479, 10, 1332, 10, 4] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 2301 ms. (434 steps per ms)
BEST_FIRST walk for 8000007 steps (16 resets) in 4561 ms. (1753 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2, 1385, 540, 1479, 10, 1332, 10, 4] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 03:10:43] [INFO ] Flow matrix only has 760 transitions (discarded 553 similar events)
[2024-05-23 03:10:43] [INFO ] Invariant cache hit.
[2024-05-23 03:10:44] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:10:44] [INFO ] [Real]Absence check using state equation in 146 ms returned sat
[2024-05-23 03:10:44] [INFO ] State equation strengthened by 95 read => feed constraints.
[2024-05-23 03:10:44] [INFO ] [Real]Added 95 Read/Feed constraints in 25 ms returned sat
[2024-05-23 03:10:44] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:10:44] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:10:44] [INFO ] [Nat]Absence check using state equation in 148 ms returned sat
[2024-05-23 03:10:44] [INFO ] [Nat]Added 95 Read/Feed constraints in 65 ms returned sat
[2024-05-23 03:10:44] [INFO ] Deduced a trap composed of 128 places in 203 ms of which 3 ms to minimize.
[2024-05-23 03:10:44] [INFO ] Deduced a trap composed of 113 places in 194 ms of which 3 ms to minimize.
[2024-05-23 03:10:45] [INFO ] Deduced a trap composed of 93 places in 193 ms of which 3 ms to minimize.
[2024-05-23 03:10:45] [INFO ] Deduced a trap composed of 82 places in 194 ms of which 3 ms to minimize.
[2024-05-23 03:10:45] [INFO ] Deduced a trap composed of 80 places in 207 ms of which 3 ms to minimize.
[2024-05-23 03:10:45] [INFO ] Deduced a trap composed of 151 places in 176 ms of which 3 ms to minimize.
[2024-05-23 03:10:45] [INFO ] Trap strengthening (SAT) tested/added 7/6 trap constraints in 1338 ms
[2024-05-23 03:10:45] [INFO ] Computed and/alt/rep : 111/242/98 causal constraints (skipped 660 transitions) in 69 ms.
[2024-05-23 03:10:46] [INFO ] Added : 2 causal constraints over 1 iterations in 175 ms. Result :sat
Minimization took 269 ms.
[2024-05-23 03:10:46] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:10:46] [INFO ] [Real]Absence check using state equation in 150 ms returned sat
[2024-05-23 03:10:46] [INFO ] [Real]Added 95 Read/Feed constraints in 44 ms returned sat
[2024-05-23 03:10:46] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:10:46] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:10:46] [INFO ] [Nat]Absence check using state equation in 152 ms returned sat
[2024-05-23 03:10:46] [INFO ] [Nat]Added 95 Read/Feed constraints in 59 ms returned sat
[2024-05-23 03:10:47] [INFO ] Deduced a trap composed of 89 places in 207 ms of which 3 ms to minimize.
[2024-05-23 03:10:47] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 255 ms
[2024-05-23 03:10:47] [INFO ] Computed and/alt/rep : 111/242/98 causal constraints (skipped 660 transitions) in 67 ms.
[2024-05-23 03:10:47] [INFO ] Added : 8 causal constraints over 3 iterations in 252 ms. Result :sat
Minimization took 263 ms.
[2024-05-23 03:10:47] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:10:47] [INFO ] [Real]Absence check using state equation in 155 ms returned sat
[2024-05-23 03:10:47] [INFO ] [Real]Added 95 Read/Feed constraints in 25 ms returned sat
[2024-05-23 03:10:47] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:10:48] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:10:48] [INFO ] [Nat]Absence check using state equation in 144 ms returned sat
[2024-05-23 03:10:48] [INFO ] [Nat]Added 95 Read/Feed constraints in 31 ms returned sat
[2024-05-23 03:10:48] [INFO ] Computed and/alt/rep : 111/242/98 causal constraints (skipped 660 transitions) in 72 ms.
[2024-05-23 03:10:48] [INFO ] Added : 5 causal constraints over 3 iterations in 229 ms. Result :sat
Minimization took 274 ms.
[2024-05-23 03:10:48] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:10:49] [INFO ] [Real]Absence check using state equation in 150 ms returned sat
[2024-05-23 03:10:49] [INFO ] [Real]Added 95 Read/Feed constraints in 20 ms returned sat
[2024-05-23 03:10:49] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:10:49] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:10:49] [INFO ] [Nat]Absence check using state equation in 151 ms returned sat
[2024-05-23 03:10:49] [INFO ] [Nat]Added 95 Read/Feed constraints in 29 ms returned sat
[2024-05-23 03:10:49] [INFO ] Computed and/alt/rep : 111/242/98 causal constraints (skipped 660 transitions) in 67 ms.
[2024-05-23 03:10:49] [INFO ] Added : 13 causal constraints over 4 iterations in 275 ms. Result :sat
Minimization took 267 ms.
[2024-05-23 03:10:49] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:10:50] [INFO ] [Real]Absence check using state equation in 149 ms returned sat
[2024-05-23 03:10:50] [INFO ] [Real]Added 95 Read/Feed constraints in 32 ms returned sat
[2024-05-23 03:10:50] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:10:50] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:10:50] [INFO ] [Nat]Absence check using state equation in 149 ms returned sat
[2024-05-23 03:10:50] [INFO ] [Nat]Added 95 Read/Feed constraints in 42 ms returned sat
[2024-05-23 03:10:50] [INFO ] Deduced a trap composed of 128 places in 204 ms of which 3 ms to minimize.
[2024-05-23 03:10:50] [INFO ] Deduced a trap composed of 82 places in 199 ms of which 3 ms to minimize.
[2024-05-23 03:10:50] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 475 ms
[2024-05-23 03:10:51] [INFO ] Computed and/alt/rep : 111/242/98 causal constraints (skipped 660 transitions) in 70 ms.
[2024-05-23 03:10:51] [INFO ] Added : 11 causal constraints over 4 iterations in 303 ms. Result :sat
Minimization took 266 ms.
[2024-05-23 03:10:51] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:10:51] [INFO ] [Real]Absence check using state equation in 151 ms returned sat
[2024-05-23 03:10:51] [INFO ] [Real]Added 95 Read/Feed constraints in 38 ms returned sat
[2024-05-23 03:10:51] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:10:51] [INFO ] [Nat]Absence check using 3 positive place invariants in 11 ms returned sat
[2024-05-23 03:10:52] [INFO ] [Nat]Absence check using state equation in 146 ms returned sat
[2024-05-23 03:10:52] [INFO ] [Nat]Added 95 Read/Feed constraints in 26 ms returned sat
[2024-05-23 03:10:52] [INFO ] Computed and/alt/rep : 111/242/98 causal constraints (skipped 660 transitions) in 69 ms.
[2024-05-23 03:10:52] [INFO ] Added : 18 causal constraints over 5 iterations in 316 ms. Result :sat
Minimization took 271 ms.
[2024-05-23 03:10:52] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:10:52] [INFO ] [Real]Absence check using state equation in 151 ms returned sat
[2024-05-23 03:10:52] [INFO ] [Real]Added 95 Read/Feed constraints in 28 ms returned sat
[2024-05-23 03:10:53] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:10:53] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:10:53] [INFO ] [Nat]Absence check using state equation in 156 ms returned sat
[2024-05-23 03:10:53] [INFO ] [Nat]Added 95 Read/Feed constraints in 28 ms returned sat
[2024-05-23 03:10:53] [INFO ] Computed and/alt/rep : 111/242/98 causal constraints (skipped 660 transitions) in 68 ms.
[2024-05-23 03:10:53] [INFO ] Added : 1 causal constraints over 1 iterations in 165 ms. Result :sat
Minimization took 254 ms.
[2024-05-23 03:10:53] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:10:53] [INFO ] [Real]Absence check using state equation in 157 ms returned sat
[2024-05-23 03:10:53] [INFO ] [Real]Added 95 Read/Feed constraints in 22 ms returned sat
[2024-05-23 03:10:54] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:10:54] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:10:54] [INFO ] [Nat]Absence check using state equation in 147 ms returned sat
[2024-05-23 03:10:54] [INFO ] [Nat]Added 95 Read/Feed constraints in 20 ms returned sat
[2024-05-23 03:10:54] [INFO ] Computed and/alt/rep : 111/242/98 causal constraints (skipped 660 transitions) in 69 ms.
[2024-05-23 03:10:54] [INFO ] Added : 5 causal constraints over 2 iterations in 222 ms. Result :sat
Minimization took 264 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[2, 1385, 540, 1479, 10, 1332, 10, 4] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[2, 1385, 540, 1479, 13, 1332, 10, 4] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 8 out of 464 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 464/464 places, 1313/1313 transitions.
Applied a total of 0 rules in 48 ms. Remains 464 /464 variables (removed 0) and now considering 1313/1313 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 49 ms. Remains : 464/464 places, 1313/1313 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 464/464 places, 1313/1313 transitions.
Applied a total of 0 rules in 49 ms. Remains 464 /464 variables (removed 0) and now considering 1313/1313 (removed 0) transitions.
[2024-05-23 03:11:12] [INFO ] Flow matrix only has 760 transitions (discarded 553 similar events)
[2024-05-23 03:11:12] [INFO ] Invariant cache hit.
[2024-05-23 03:11:12] [INFO ] Implicit Places using invariants in 323 ms returned []
[2024-05-23 03:11:12] [INFO ] Flow matrix only has 760 transitions (discarded 553 similar events)
[2024-05-23 03:11:12] [INFO ] Invariant cache hit.
[2024-05-23 03:11:12] [INFO ] State equation strengthened by 95 read => feed constraints.
[2024-05-23 03:11:13] [INFO ] Implicit Places using invariants and state equation in 1334 ms returned []
Implicit Place search using SMT with State Equation took 1659 ms to find 0 implicit places.
[2024-05-23 03:11:13] [INFO ] Redundant transitions in 20 ms returned []
Running 1311 sub problems to find dead transitions.
[2024-05-23 03:11:13] [INFO ] Flow matrix only has 760 transitions (discarded 553 similar events)
[2024-05-23 03:11:13] [INFO ] Invariant cache hit.
[2024-05-23 03:11:13] [INFO ] State equation strengthened by 95 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/464 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1311 unsolved
[2024-05-23 03:11:29] [INFO ] Deduced a trap composed of 131 places in 148 ms of which 3 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/464 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1311 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 464/1224 variables, and 4 constraints, problems are : Problem set: 0 solved, 1311 unsolved in 30023 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/464 constraints, ReadFeed: 0/95 constraints, PredecessorRefiner: 1311/1311 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1311 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/464 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1311 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/464 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1311 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/464 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1311 unsolved
At refinement iteration 3 (OVERLAPS) 760/1224 variables, 464/468 constraints. Problems are: Problem set: 0 solved, 1311 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1224 variables, 95/563 constraints. Problems are: Problem set: 0 solved, 1311 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/1224 variables, 1311/1874 constraints. Problems are: Problem set: 0 solved, 1311 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1224/1224 variables, and 1874 constraints, problems are : Problem set: 0 solved, 1311 unsolved in 30032 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 464/464 constraints, ReadFeed: 95/95 constraints, PredecessorRefiner: 1311/1311 constraints, Known Traps: 1/1 constraints]
After SMT, in 64498ms problems are : Problem set: 0 solved, 1311 unsolved
Search for dead transitions found 0 dead transitions in 64510ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 66245 ms. Remains : 464/464 places, 1313/1313 transitions.
[2024-05-23 03:12:18] [INFO ] Flow matrix only has 760 transitions (discarded 553 similar events)
Found an invariant !
This invariant on transitions {255=1, 381=1, 585=1, 745=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, 706=1, 751=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 49 ms. (steps per millisecond=204 ) properties (out of 8) seen :[0, 0, 0, 0, 0, 0, 2147483647, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[2, 1385, 540, 1479, 13, 1332, +inf, 4] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 03:12:18] [INFO ] Flow matrix only has 760 transitions (discarded 553 similar events)
[2024-05-23 03:12:18] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[2, 1385, 540, 1479, 13, 1332, +inf, 4] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 2254 ms. (443 steps per ms)
FORMULA FunctionPointer-PT-c002-UpperBounds-13 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 7000006 steps (14 resets) in 3996 ms. (1751 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2, 1385, 540, 1479, 1619, 1332, 4] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 03:12:24] [INFO ] Flow matrix only has 760 transitions (discarded 553 similar events)
[2024-05-23 03:12:24] [INFO ] Invariant cache hit.
[2024-05-23 03:12:25] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:12:25] [INFO ] [Real]Absence check using state equation in 150 ms returned sat
[2024-05-23 03:12:25] [INFO ] State equation strengthened by 95 read => feed constraints.
[2024-05-23 03:12:25] [INFO ] [Real]Added 95 Read/Feed constraints in 32 ms returned sat
[2024-05-23 03:12:25] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:12:25] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:12:25] [INFO ] [Nat]Absence check using state equation in 145 ms returned sat
[2024-05-23 03:12:25] [INFO ] [Nat]Added 95 Read/Feed constraints in 56 ms returned sat
[2024-05-23 03:12:25] [INFO ] Deduced a trap composed of 128 places in 208 ms of which 3 ms to minimize.
[2024-05-23 03:12:25] [INFO ] Deduced a trap composed of 113 places in 198 ms of which 3 ms to minimize.
[2024-05-23 03:12:26] [INFO ] Deduced a trap composed of 93 places in 207 ms of which 3 ms to minimize.
[2024-05-23 03:12:26] [INFO ] Deduced a trap composed of 82 places in 194 ms of which 3 ms to minimize.
[2024-05-23 03:12:26] [INFO ] Deduced a trap composed of 80 places in 202 ms of which 3 ms to minimize.
[2024-05-23 03:12:26] [INFO ] Deduced a trap composed of 151 places in 176 ms of which 3 ms to minimize.
[2024-05-23 03:12:26] [INFO ] Trap strengthening (SAT) tested/added 7/6 trap constraints in 1350 ms
[2024-05-23 03:12:26] [INFO ] Computed and/alt/rep : 111/242/98 causal constraints (skipped 660 transitions) in 70 ms.
[2024-05-23 03:12:27] [INFO ] Added : 2 causal constraints over 1 iterations in 169 ms. Result :sat
Minimization took 268 ms.
[2024-05-23 03:12:27] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:12:27] [INFO ] [Real]Absence check using state equation in 151 ms returned sat
[2024-05-23 03:12:27] [INFO ] [Real]Added 95 Read/Feed constraints in 43 ms returned sat
[2024-05-23 03:12:27] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:12:27] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:12:27] [INFO ] [Nat]Absence check using state equation in 150 ms returned sat
[2024-05-23 03:12:27] [INFO ] [Nat]Added 95 Read/Feed constraints in 53 ms returned sat
[2024-05-23 03:12:28] [INFO ] Deduced a trap composed of 89 places in 206 ms of which 3 ms to minimize.
[2024-05-23 03:12:28] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 258 ms
[2024-05-23 03:12:28] [INFO ] Computed and/alt/rep : 111/242/98 causal constraints (skipped 660 transitions) in 72 ms.
[2024-05-23 03:12:28] [INFO ] Added : 8 causal constraints over 3 iterations in 253 ms. Result :sat
Minimization took 270 ms.
[2024-05-23 03:12:28] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:12:28] [INFO ] [Real]Absence check using state equation in 149 ms returned sat
[2024-05-23 03:12:28] [INFO ] [Real]Added 95 Read/Feed constraints in 28 ms returned sat
[2024-05-23 03:12:29] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:12:29] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:12:29] [INFO ] [Nat]Absence check using state equation in 148 ms returned sat
[2024-05-23 03:12:29] [INFO ] [Nat]Added 95 Read/Feed constraints in 42 ms returned sat
[2024-05-23 03:12:29] [INFO ] Computed and/alt/rep : 111/242/98 causal constraints (skipped 660 transitions) in 69 ms.
[2024-05-23 03:12:29] [INFO ] Added : 5 causal constraints over 3 iterations in 226 ms. Result :sat
Minimization took 275 ms.
[2024-05-23 03:12:29] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:12:30] [INFO ] [Real]Absence check using state equation in 153 ms returned sat
[2024-05-23 03:12:30] [INFO ] [Real]Added 95 Read/Feed constraints in 24 ms returned sat
[2024-05-23 03:12:30] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:12:30] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:12:30] [INFO ] [Nat]Absence check using state equation in 156 ms returned sat
[2024-05-23 03:12:30] [INFO ] [Nat]Added 95 Read/Feed constraints in 23 ms returned sat
[2024-05-23 03:12:30] [INFO ] Computed and/alt/rep : 111/242/98 causal constraints (skipped 660 transitions) in 68 ms.
[2024-05-23 03:12:30] [INFO ] Added : 13 causal constraints over 4 iterations in 266 ms. Result :sat
Minimization took 268 ms.
[2024-05-23 03:12:31] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:12:31] [INFO ] [Real]Absence check using state equation in 150 ms returned sat
[2024-05-23 03:12:31] [INFO ] [Real]Added 95 Read/Feed constraints in 65 ms returned sat
[2024-05-23 03:12:31] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:12:31] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:12:31] [INFO ] [Nat]Absence check using state equation in 147 ms returned sat
[2024-05-23 03:12:31] [INFO ] [Nat]Added 95 Read/Feed constraints in 50 ms returned sat
[2024-05-23 03:12:31] [INFO ] Deduced a trap composed of 128 places in 223 ms of which 7 ms to minimize.
[2024-05-23 03:12:32] [INFO ] Deduced a trap composed of 82 places in 200 ms of which 3 ms to minimize.
[2024-05-23 03:12:32] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 492 ms
[2024-05-23 03:12:32] [INFO ] Computed and/alt/rep : 111/242/98 causal constraints (skipped 660 transitions) in 69 ms.
[2024-05-23 03:12:32] [INFO ] Added : 11 causal constraints over 4 iterations in 287 ms. Result :sat
Minimization took 272 ms.
[2024-05-23 03:12:32] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:12:32] [INFO ] [Real]Absence check using state equation in 148 ms returned sat
[2024-05-23 03:12:32] [INFO ] [Real]Added 95 Read/Feed constraints in 38 ms returned sat
[2024-05-23 03:12:32] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:12:32] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:12:33] [INFO ] [Nat]Absence check using state equation in 149 ms returned sat
[2024-05-23 03:12:33] [INFO ] [Nat]Added 95 Read/Feed constraints in 27 ms returned sat
[2024-05-23 03:12:33] [INFO ] Computed and/alt/rep : 111/242/98 causal constraints (skipped 660 transitions) in 69 ms.
[2024-05-23 03:12:33] [INFO ] Added : 18 causal constraints over 5 iterations in 303 ms. Result :sat
Minimization took 279 ms.
[2024-05-23 03:12:33] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:12:34] [INFO ] [Real]Absence check using state equation in 153 ms returned sat
[2024-05-23 03:12:34] [INFO ] [Real]Added 95 Read/Feed constraints in 22 ms returned sat
[2024-05-23 03:12:34] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:12:34] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:12:34] [INFO ] [Nat]Absence check using state equation in 147 ms returned sat
[2024-05-23 03:12:34] [INFO ] [Nat]Added 95 Read/Feed constraints in 20 ms returned sat
[2024-05-23 03:12:34] [INFO ] Computed and/alt/rep : 111/242/98 causal constraints (skipped 660 transitions) in 68 ms.
[2024-05-23 03:12:34] [INFO ] Added : 5 causal constraints over 2 iterations in 228 ms. Result :sat
Minimization took 262 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[2, 1385, 540, 1479, 1619, 1332, 4] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[2, 1385, 540, 1479, 1619, 1332, 4] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 7 out of 464 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 464/464 places, 1313/1313 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 463 transition count 1311
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 463 transition count 1311
Applied a total of 2 rules in 58 ms. Remains 463 /464 variables (removed 1) and now considering 1311/1313 (removed 2) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 58 ms. Remains : 463/464 places, 1311/1313 transitions.
[2024-05-23 03:12:56] [INFO ] Flow matrix only has 757 transitions (discarded 554 similar events)
Found an invariant !
This invariant on transitions {241=1, 366=1, 698=1, 756=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 377=1, 709=1, 755=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 7) seen :[0, 0, 0, 0, 0, 2, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[2, 1385, 540, 1479, 1619, 1332, 4] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 03:12:56] [INFO ] Flow matrix only has 757 transitions (discarded 554 similar events)
// Phase 1: matrix 757 rows 463 cols
[2024-05-23 03:12:56] [INFO ] Computed 3 invariants in 8 ms
Current structural bounds on expressions (after invariants) : Max Seen:[2, 1385, 540, 1479, 1619, 1332, 4] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 2175 ms. (459 steps per ms)
BEST_FIRST walk for 7000006 steps (14 resets) in 3984 ms. (1756 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2, 1385, 540, 1479, 1619, 1332, 1367] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 03:13:03] [INFO ] Flow matrix only has 757 transitions (discarded 554 similar events)
[2024-05-23 03:13:03] [INFO ] Invariant cache hit.
[2024-05-23 03:13:03] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:13:03] [INFO ] [Real]Absence check using state equation in 150 ms returned sat
[2024-05-23 03:13:03] [INFO ] State equation strengthened by 93 read => feed constraints.
[2024-05-23 03:13:03] [INFO ] [Real]Added 93 Read/Feed constraints in 44 ms returned sat
[2024-05-23 03:13:03] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:13:03] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:13:03] [INFO ] [Nat]Absence check using state equation in 151 ms returned sat
[2024-05-23 03:13:03] [INFO ] [Nat]Added 93 Read/Feed constraints in 58 ms returned sat
[2024-05-23 03:13:03] [INFO ] Deduced a trap composed of 109 places in 207 ms of which 3 ms to minimize.
[2024-05-23 03:13:03] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 261 ms
[2024-05-23 03:13:03] [INFO ] Computed and/alt/rep : 110/241/97 causal constraints (skipped 658 transitions) in 72 ms.
[2024-05-23 03:13:04] [INFO ] Added : 2 causal constraints over 1 iterations in 159 ms. Result :sat
Minimization took 263 ms.
[2024-05-23 03:13:04] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:13:04] [INFO ] [Real]Absence check using state equation in 148 ms returned sat
[2024-05-23 03:13:04] [INFO ] [Real]Added 93 Read/Feed constraints in 23 ms returned sat
[2024-05-23 03:13:04] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:13:04] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:13:04] [INFO ] [Nat]Absence check using state equation in 157 ms returned sat
[2024-05-23 03:13:04] [INFO ] [Nat]Added 93 Read/Feed constraints in 26 ms returned sat
[2024-05-23 03:13:04] [INFO ] Computed and/alt/rep : 110/241/97 causal constraints (skipped 658 transitions) in 68 ms.
[2024-05-23 03:13:05] [INFO ] Added : 4 causal constraints over 2 iterations in 192 ms. Result :sat
Minimization took 268 ms.
[2024-05-23 03:13:05] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:13:05] [INFO ] [Real]Absence check using state equation in 149 ms returned sat
[2024-05-23 03:13:05] [INFO ] [Real]Added 93 Read/Feed constraints in 32 ms returned sat
[2024-05-23 03:13:05] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:13:05] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:13:05] [INFO ] [Nat]Absence check using state equation in 147 ms returned sat
[2024-05-23 03:13:05] [INFO ] [Nat]Added 93 Read/Feed constraints in 25 ms returned sat
[2024-05-23 03:13:06] [INFO ] Computed and/alt/rep : 110/241/97 causal constraints (skipped 658 transitions) in 69 ms.
[2024-05-23 03:13:06] [INFO ] Added : 5 causal constraints over 3 iterations in 254 ms. Result :sat
Minimization took 275 ms.
[2024-05-23 03:13:06] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:13:06] [INFO ] [Real]Absence check using state equation in 150 ms returned sat
[2024-05-23 03:13:06] [INFO ] [Real]Added 93 Read/Feed constraints in 36 ms returned sat
[2024-05-23 03:13:06] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:13:06] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:13:07] [INFO ] [Nat]Absence check using state equation in 143 ms returned sat
[2024-05-23 03:13:07] [INFO ] [Nat]Added 93 Read/Feed constraints in 27 ms returned sat
[2024-05-23 03:13:07] [INFO ] Computed and/alt/rep : 110/241/97 causal constraints (skipped 658 transitions) in 67 ms.
[2024-05-23 03:13:07] [INFO ] Added : 14 causal constraints over 4 iterations in 290 ms. Result :sat
Minimization took 271 ms.
[2024-05-23 03:13:07] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:13:07] [INFO ] [Real]Absence check using state equation in 159 ms returned sat
[2024-05-23 03:13:07] [INFO ] [Real]Added 93 Read/Feed constraints in 33 ms returned sat
[2024-05-23 03:13:07] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:13:08] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:13:08] [INFO ] [Nat]Absence check using state equation in 147 ms returned sat
[2024-05-23 03:13:08] [INFO ] [Nat]Added 93 Read/Feed constraints in 29 ms returned sat
[2024-05-23 03:13:08] [INFO ] Deduced a trap composed of 81 places in 203 ms of which 3 ms to minimize.
[2024-05-23 03:13:08] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 248 ms
[2024-05-23 03:13:08] [INFO ] Computed and/alt/rep : 110/241/97 causal constraints (skipped 658 transitions) in 71 ms.
[2024-05-23 03:13:08] [INFO ] Added : 18 causal constraints over 5 iterations in 304 ms. Result :sat
Minimization took 265 ms.
[2024-05-23 03:13:09] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:13:09] [INFO ] [Real]Absence check using state equation in 147 ms returned sat
[2024-05-23 03:13:09] [INFO ] [Real]Added 93 Read/Feed constraints in 52 ms returned sat
[2024-05-23 03:13:09] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:13:09] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:13:09] [INFO ] [Nat]Absence check using state equation in 140 ms returned sat
[2024-05-23 03:13:09] [INFO ] [Nat]Added 93 Read/Feed constraints in 33 ms returned sat
[2024-05-23 03:13:09] [INFO ] Computed and/alt/rep : 110/241/97 causal constraints (skipped 658 transitions) in 66 ms.
[2024-05-23 03:13:09] [INFO ] Added : 10 causal constraints over 4 iterations in 262 ms. Result :sat
Minimization took 269 ms.
[2024-05-23 03:13:10] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:13:10] [INFO ] [Real]Absence check using state equation in 153 ms returned sat
[2024-05-23 03:13:10] [INFO ] [Real]Added 93 Read/Feed constraints in 42 ms returned sat
[2024-05-23 03:13:10] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:13:10] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:13:10] [INFO ] [Nat]Absence check using state equation in 148 ms returned sat
[2024-05-23 03:13:10] [INFO ] [Nat]Added 93 Read/Feed constraints in 28 ms returned sat
[2024-05-23 03:13:10] [INFO ] Computed and/alt/rep : 110/241/97 causal constraints (skipped 658 transitions) in 67 ms.
[2024-05-23 03:13:10] [INFO ] Added : 3 causal constraints over 1 iterations in 185 ms. Result :sat
Minimization took 262 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[2, 1385, 540, 1479, 1619, 1332, 1367] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[2, 1385, 540, 1479, 1619, 1332, 1367] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 7 out of 463 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 463/463 places, 1311/1311 transitions.
Applied a total of 0 rules in 48 ms. Remains 463 /463 variables (removed 0) and now considering 1311/1311 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 48 ms. Remains : 463/463 places, 1311/1311 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 463/463 places, 1311/1311 transitions.
Applied a total of 0 rules in 47 ms. Remains 463 /463 variables (removed 0) and now considering 1311/1311 (removed 0) transitions.
[2024-05-23 03:13:37] [INFO ] Flow matrix only has 757 transitions (discarded 554 similar events)
[2024-05-23 03:13:37] [INFO ] Invariant cache hit.
[2024-05-23 03:13:37] [INFO ] Implicit Places using invariants in 329 ms returned []
[2024-05-23 03:13:37] [INFO ] Flow matrix only has 757 transitions (discarded 554 similar events)
[2024-05-23 03:13:37] [INFO ] Invariant cache hit.
[2024-05-23 03:13:38] [INFO ] State equation strengthened by 93 read => feed constraints.
[2024-05-23 03:13:39] [INFO ] Implicit Places using invariants and state equation in 1654 ms returned []
Implicit Place search using SMT with State Equation took 1987 ms to find 0 implicit places.
[2024-05-23 03:13:39] [INFO ] Redundant transitions in 17 ms returned []
Running 1309 sub problems to find dead transitions.
[2024-05-23 03:13:39] [INFO ] Flow matrix only has 757 transitions (discarded 554 similar events)
[2024-05-23 03:13:39] [INFO ] Invariant cache hit.
[2024-05-23 03:13:39] [INFO ] State equation strengthened by 93 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/463 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1309 unsolved
[2024-05-23 03:13:54] [INFO ] Deduced a trap composed of 131 places in 152 ms of which 2 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/463 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1309 unsolved
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0.0 org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 463/1220 variables, and 4 constraints, problems are : Problem set: 0 solved, 1309 unsolved in 30025 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/463 constraints, ReadFeed: 0/93 constraints, PredecessorRefiner: 1309/1309 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1309 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/463 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1309 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/463 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1309 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/463 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1309 unsolved
At refinement iteration 3 (OVERLAPS) 757/1220 variables, 463/467 constraints. Problems are: Problem set: 0 solved, 1309 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1220 variables, 93/560 constraints. Problems are: Problem set: 0 solved, 1309 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/1220 variables, 1309/1869 constraints. Problems are: Problem set: 0 solved, 1309 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1220/1220 variables, and 1869 constraints, problems are : Problem set: 0 solved, 1309 unsolved in 30024 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 463/463 constraints, ReadFeed: 93/93 constraints, PredecessorRefiner: 1309/1309 constraints, Known Traps: 1/1 constraints]
After SMT, in 64516ms problems are : Problem set: 0 solved, 1309 unsolved
Search for dead transitions found 0 dead transitions in 64528ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 66588 ms. Remains : 463/463 places, 1311/1311 transitions.
[2024-05-23 03:14:44] [INFO ] Flow matrix only has 757 transitions (discarded 554 similar events)
Found an invariant !
This invariant on transitions {241=1, 366=1, 698=1, 756=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 377=1, 709=1, 755=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 28 ms. (steps per millisecond=357 ) properties (out of 7) seen :[0, 0, 0, 0, 0, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[2, 1385, 540, 1479, 1619, 1332, 1367] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 03:14:44] [INFO ] Flow matrix only has 757 transitions (discarded 554 similar events)
[2024-05-23 03:14:44] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[2, 1385, 540, 1479, 1619, 1332, 1367] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 2325 ms. (429 steps per ms)
BEST_FIRST walk for 7000006 steps (14 resets) in 4012 ms. (1744 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2, 1405, 540, 1479, 1619, 1332, 1367] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 03:14:50] [INFO ] Flow matrix only has 757 transitions (discarded 554 similar events)
[2024-05-23 03:14:50] [INFO ] Invariant cache hit.
[2024-05-23 03:14:50] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:14:50] [INFO ] [Real]Absence check using state equation in 155 ms returned sat
[2024-05-23 03:14:50] [INFO ] State equation strengthened by 93 read => feed constraints.
[2024-05-23 03:14:51] [INFO ] [Real]Added 93 Read/Feed constraints in 42 ms returned sat
[2024-05-23 03:14:51] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:14:51] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:14:51] [INFO ] [Nat]Absence check using state equation in 150 ms returned sat
[2024-05-23 03:14:51] [INFO ] [Nat]Added 93 Read/Feed constraints in 51 ms returned sat
[2024-05-23 03:14:51] [INFO ] Deduced a trap composed of 109 places in 203 ms of which 3 ms to minimize.
[2024-05-23 03:14:51] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 255 ms
[2024-05-23 03:14:51] [INFO ] Computed and/alt/rep : 110/241/97 causal constraints (skipped 658 transitions) in 68 ms.
[2024-05-23 03:14:51] [INFO ] Added : 2 causal constraints over 1 iterations in 160 ms. Result :sat
Minimization took 269 ms.
[2024-05-23 03:14:52] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:14:52] [INFO ] [Real]Absence check using state equation in 150 ms returned sat
[2024-05-23 03:14:52] [INFO ] [Real]Added 93 Read/Feed constraints in 24 ms returned sat
[2024-05-23 03:14:52] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:14:52] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:14:52] [INFO ] [Nat]Absence check using state equation in 146 ms returned sat
[2024-05-23 03:14:52] [INFO ] [Nat]Added 93 Read/Feed constraints in 26 ms returned sat
[2024-05-23 03:14:52] [INFO ] Computed and/alt/rep : 110/241/97 causal constraints (skipped 658 transitions) in 68 ms.
[2024-05-23 03:14:52] [INFO ] Added : 4 causal constraints over 2 iterations in 197 ms. Result :sat
Minimization took 268 ms.
[2024-05-23 03:14:53] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:14:53] [INFO ] [Real]Absence check using state equation in 151 ms returned sat
[2024-05-23 03:14:53] [INFO ] [Real]Added 93 Read/Feed constraints in 29 ms returned sat
[2024-05-23 03:14:53] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:14:53] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:14:53] [INFO ] [Nat]Absence check using state equation in 148 ms returned sat
[2024-05-23 03:14:53] [INFO ] [Nat]Added 93 Read/Feed constraints in 27 ms returned sat
[2024-05-23 03:14:53] [INFO ] Computed and/alt/rep : 110/241/97 causal constraints (skipped 658 transitions) in 68 ms.
[2024-05-23 03:14:53] [INFO ] Added : 5 causal constraints over 3 iterations in 254 ms. Result :sat
Minimization took 275 ms.
[2024-05-23 03:14:54] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:14:54] [INFO ] [Real]Absence check using state equation in 149 ms returned sat
[2024-05-23 03:14:54] [INFO ] [Real]Added 93 Read/Feed constraints in 35 ms returned sat
[2024-05-23 03:14:54] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:14:54] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:14:54] [INFO ] [Nat]Absence check using state equation in 146 ms returned sat
[2024-05-23 03:14:54] [INFO ] [Nat]Added 93 Read/Feed constraints in 27 ms returned sat
[2024-05-23 03:14:54] [INFO ] Computed and/alt/rep : 110/241/97 causal constraints (skipped 658 transitions) in 68 ms.
[2024-05-23 03:14:54] [INFO ] Added : 14 causal constraints over 4 iterations in 278 ms. Result :sat
Minimization took 269 ms.
[2024-05-23 03:14:55] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:14:55] [INFO ] [Real]Absence check using state equation in 153 ms returned sat
[2024-05-23 03:14:55] [INFO ] [Real]Added 93 Read/Feed constraints in 32 ms returned sat
[2024-05-23 03:14:55] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:14:55] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:14:55] [INFO ] [Nat]Absence check using state equation in 146 ms returned sat
[2024-05-23 03:14:55] [INFO ] [Nat]Added 93 Read/Feed constraints in 29 ms returned sat
[2024-05-23 03:14:56] [INFO ] Deduced a trap composed of 81 places in 205 ms of which 3 ms to minimize.
[2024-05-23 03:14:56] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 254 ms
[2024-05-23 03:14:56] [INFO ] Computed and/alt/rep : 110/241/97 causal constraints (skipped 658 transitions) in 67 ms.
[2024-05-23 03:14:56] [INFO ] Added : 18 causal constraints over 5 iterations in 300 ms. Result :sat
Minimization took 270 ms.
[2024-05-23 03:14:56] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:14:56] [INFO ] [Real]Absence check using state equation in 147 ms returned sat
[2024-05-23 03:14:56] [INFO ] [Real]Added 93 Read/Feed constraints in 54 ms returned sat
[2024-05-23 03:14:56] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:14:57] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:14:57] [INFO ] [Nat]Absence check using state equation in 148 ms returned sat
[2024-05-23 03:14:57] [INFO ] [Nat]Added 93 Read/Feed constraints in 34 ms returned sat
[2024-05-23 03:14:57] [INFO ] Computed and/alt/rep : 110/241/97 causal constraints (skipped 658 transitions) in 68 ms.
[2024-05-23 03:14:57] [INFO ] Added : 10 causal constraints over 4 iterations in 253 ms. Result :sat
Minimization took 271 ms.
[2024-05-23 03:14:57] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:14:58] [INFO ] [Real]Absence check using state equation in 151 ms returned sat
[2024-05-23 03:14:58] [INFO ] [Real]Added 93 Read/Feed constraints in 45 ms returned sat
[2024-05-23 03:14:58] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:14:58] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:14:58] [INFO ] [Nat]Absence check using state equation in 149 ms returned sat
[2024-05-23 03:14:58] [INFO ] [Nat]Added 93 Read/Feed constraints in 29 ms returned sat
[2024-05-23 03:14:58] [INFO ] Computed and/alt/rep : 110/241/97 causal constraints (skipped 658 transitions) in 68 ms.
[2024-05-23 03:14:58] [INFO ] Added : 3 causal constraints over 1 iterations in 187 ms. Result :sat
Minimization took 264 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[2, 1405, 540, 1479, 1619, 1332, 1367] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[2, 1405, 540, 1479, 1619, 1332, 1367] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 7 out of 463 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 463/463 places, 1311/1311 transitions.
Applied a total of 0 rules in 49 ms. Remains 463 /463 variables (removed 0) and now considering 1311/1311 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 49 ms. Remains : 463/463 places, 1311/1311 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 463/463 places, 1311/1311 transitions.
Applied a total of 0 rules in 49 ms. Remains 463 /463 variables (removed 0) and now considering 1311/1311 (removed 0) transitions.
[2024-05-23 03:15:25] [INFO ] Flow matrix only has 757 transitions (discarded 554 similar events)
[2024-05-23 03:15:25] [INFO ] Invariant cache hit.
[2024-05-23 03:15:25] [INFO ] Implicit Places using invariants in 327 ms returned []
[2024-05-23 03:15:25] [INFO ] Flow matrix only has 757 transitions (discarded 554 similar events)
[2024-05-23 03:15:25] [INFO ] Invariant cache hit.
[2024-05-23 03:15:26] [INFO ] State equation strengthened by 93 read => feed constraints.
[2024-05-23 03:15:27] [INFO ] Implicit Places using invariants and state equation in 1692 ms returned []
Implicit Place search using SMT with State Equation took 2022 ms to find 0 implicit places.
[2024-05-23 03:15:27] [INFO ] Redundant transitions in 22 ms returned []
Running 1309 sub problems to find dead transitions.
[2024-05-23 03:15:27] [INFO ] Flow matrix only has 757 transitions (discarded 554 similar events)
[2024-05-23 03:15:27] [INFO ] Invariant cache hit.
[2024-05-23 03:15:27] [INFO ] State equation strengthened by 93 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/463 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1309 unsolved
[2024-05-23 03:15:42] [INFO ] Deduced a trap composed of 131 places in 161 ms of which 3 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/463 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1309 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 463/1220 variables, and 4 constraints, problems are : Problem set: 0 solved, 1309 unsolved in 30025 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/463 constraints, ReadFeed: 0/93 constraints, PredecessorRefiner: 1309/1309 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1309 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/463 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1309 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/463 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1309 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/463 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1309 unsolved
At refinement iteration 3 (OVERLAPS) 757/1220 variables, 463/467 constraints. Problems are: Problem set: 0 solved, 1309 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1220 variables, 93/560 constraints. Problems are: Problem set: 0 solved, 1309 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/1220 variables, 1309/1869 constraints. Problems are: Problem set: 0 solved, 1309 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1220/1220 variables, and 1869 constraints, problems are : Problem set: 0 solved, 1309 unsolved in 30029 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 463/463 constraints, ReadFeed: 93/93 constraints, PredecessorRefiner: 1309/1309 constraints, Known Traps: 1/1 constraints]
After SMT, in 64637ms problems are : Problem set: 0 solved, 1309 unsolved
Search for dead transitions found 0 dead transitions in 64649ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 66752 ms. Remains : 463/463 places, 1311/1311 transitions.
[2024-05-23 03:16:32] [INFO ] Flow matrix only has 757 transitions (discarded 554 similar events)
Found an invariant !
This invariant on transitions {241=1, 366=1, 698=1, 756=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 377=1, 709=1, 755=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, 2147483647, 2, 4, 0, 2147483647, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[2, +inf, 540, 1479, 1619, +inf, 1367] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2024-05-23 03:16:32] [INFO ] Flow matrix only has 757 transitions (discarded 554 similar events)
[2024-05-23 03:16:32] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[2, +inf, 540, 1479, 1619, +inf, 1367] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 2249 ms. (444 steps per ms)
FORMULA FunctionPointer-PT-c002-UpperBounds-12 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA FunctionPointer-PT-c002-UpperBounds-02 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 5000005 steps (10 resets) in 2846 ms. (1756 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2, 540, 1479, 1619, 1367] Max Struct:[+inf, +inf, +inf, +inf, +inf]
[2024-05-23 03:16:37] [INFO ] Flow matrix only has 757 transitions (discarded 554 similar events)
[2024-05-23 03:16:37] [INFO ] Invariant cache hit.
[2024-05-23 03:16:37] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:16:37] [INFO ] [Real]Absence check using state equation in 152 ms returned sat
[2024-05-23 03:16:37] [INFO ] State equation strengthened by 93 read => feed constraints.
[2024-05-23 03:16:37] [INFO ] [Real]Added 93 Read/Feed constraints in 42 ms returned sat
[2024-05-23 03:16:37] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:16:37] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:16:38] [INFO ] [Nat]Absence check using state equation in 148 ms returned sat
[2024-05-23 03:16:38] [INFO ] [Nat]Added 93 Read/Feed constraints in 52 ms returned sat
[2024-05-23 03:16:38] [INFO ] Deduced a trap composed of 109 places in 218 ms of which 3 ms to minimize.
[2024-05-23 03:16:38] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 263 ms
[2024-05-23 03:16:38] [INFO ] Computed and/alt/rep : 110/241/97 causal constraints (skipped 658 transitions) in 70 ms.
[2024-05-23 03:16:38] [INFO ] Added : 2 causal constraints over 1 iterations in 166 ms. Result :sat
Minimization took 263 ms.
[2024-05-23 03:16:38] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:16:39] [INFO ] [Real]Absence check using state equation in 152 ms returned sat
[2024-05-23 03:16:39] [INFO ] [Real]Added 93 Read/Feed constraints in 30 ms returned sat
[2024-05-23 03:16:39] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:16:39] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:16:39] [INFO ] [Nat]Absence check using state equation in 152 ms returned sat
[2024-05-23 03:16:39] [INFO ] [Nat]Added 93 Read/Feed constraints in 25 ms returned sat
[2024-05-23 03:16:39] [INFO ] Computed and/alt/rep : 110/241/97 causal constraints (skipped 658 transitions) in 69 ms.
[2024-05-23 03:16:39] [INFO ] Added : 5 causal constraints over 3 iterations in 238 ms. Result :sat
Minimization took 275 ms.
[2024-05-23 03:16:40] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:16:40] [INFO ] [Real]Absence check using state equation in 147 ms returned sat
[2024-05-23 03:16:40] [INFO ] [Real]Added 93 Read/Feed constraints in 34 ms returned sat
[2024-05-23 03:16:40] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:16:40] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:16:40] [INFO ] [Nat]Absence check using state equation in 139 ms returned sat
[2024-05-23 03:16:40] [INFO ] [Nat]Added 93 Read/Feed constraints in 27 ms returned sat
[2024-05-23 03:16:40] [INFO ] Computed and/alt/rep : 110/241/97 causal constraints (skipped 658 transitions) in 68 ms.
[2024-05-23 03:16:40] [INFO ] Added : 14 causal constraints over 4 iterations in 282 ms. Result :sat
Minimization took 269 ms.
[2024-05-23 03:16:41] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:16:41] [INFO ] [Real]Absence check using state equation in 148 ms returned sat
[2024-05-23 03:16:41] [INFO ] [Real]Added 93 Read/Feed constraints in 32 ms returned sat
[2024-05-23 03:16:41] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:16:41] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:16:41] [INFO ] [Nat]Absence check using state equation in 147 ms returned sat
[2024-05-23 03:16:41] [INFO ] [Nat]Added 93 Read/Feed constraints in 34 ms returned sat
[2024-05-23 03:16:41] [INFO ] Deduced a trap composed of 81 places in 201 ms of which 3 ms to minimize.
[2024-05-23 03:16:41] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 252 ms
[2024-05-23 03:16:41] [INFO ] Computed and/alt/rep : 110/241/97 causal constraints (skipped 658 transitions) in 69 ms.
[2024-05-23 03:16:42] [INFO ] Added : 18 causal constraints over 5 iterations in 303 ms. Result :sat
Minimization took 271 ms.
[2024-05-23 03:16:42] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:16:42] [INFO ] [Real]Absence check using state equation in 148 ms returned sat
[2024-05-23 03:16:42] [INFO ] [Real]Added 93 Read/Feed constraints in 44 ms returned sat
[2024-05-23 03:16:42] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:16:42] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:16:42] [INFO ] [Nat]Absence check using state equation in 151 ms returned sat
[2024-05-23 03:16:43] [INFO ] [Nat]Added 93 Read/Feed constraints in 39 ms returned sat
[2024-05-23 03:16:43] [INFO ] Computed and/alt/rep : 110/241/97 causal constraints (skipped 658 transitions) in 68 ms.
[2024-05-23 03:16:43] [INFO ] Added : 3 causal constraints over 1 iterations in 194 ms. Result :sat
Minimization took 268 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[2, 540, 1479, 1619, 1367] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[2, 540, 1479, 1619, 1367] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Support contains 5 out of 463 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 463/463 places, 1311/1311 transitions.
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 2 place count 461 transition count 1307
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 461 transition count 1307
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 6 place count 461 transition count 1305
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 8 place count 459 transition count 1299
Iterating global reduction 1 with 2 rules applied. Total rules applied 10 place count 459 transition count 1299
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 12 place count 457 transition count 1295
Iterating global reduction 1 with 2 rules applied. Total rules applied 14 place count 457 transition count 1295
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 16 place count 455 transition count 1289
Iterating global reduction 1 with 2 rules applied. Total rules applied 18 place count 455 transition count 1289
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 20 place count 453 transition count 1285
Iterating global reduction 1 with 2 rules applied. Total rules applied 22 place count 453 transition count 1285
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 24 place count 451 transition count 1281
Iterating global reduction 1 with 2 rules applied. Total rules applied 26 place count 451 transition count 1281
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 28 place count 449 transition count 1277
Iterating global reduction 1 with 2 rules applied. Total rules applied 30 place count 449 transition count 1277
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 32 place count 447 transition count 1273
Iterating global reduction 1 with 2 rules applied. Total rules applied 34 place count 447 transition count 1273
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 35 place count 446 transition count 1271
Iterating global reduction 1 with 1 rules applied. Total rules applied 36 place count 446 transition count 1271
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 37 place count 445 transition count 1269
Iterating global reduction 1 with 1 rules applied. Total rules applied 38 place count 445 transition count 1269
Applied a total of 38 rules in 154 ms. Remains 445 /463 variables (removed 18) and now considering 1269/1311 (removed 42) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 154 ms. Remains : 445/463 places, 1269/1311 transitions.
[2024-05-23 03:16:59] [INFO ] Flow matrix only has 728 transitions (discarded 541 similar events)
Found an invariant !
This invariant on transitions {237=1, 345=1, 547=1, 715=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 360=1, 690=1, 727=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 5) seen :[0, 2147483647, 0, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[2, +inf, 1479, 1619, 1367] Max Struct:[+inf, +inf, +inf, +inf, +inf]
[2024-05-23 03:16:59] [INFO ] Flow matrix only has 728 transitions (discarded 541 similar events)
// Phase 1: matrix 728 rows 445 cols
[2024-05-23 03:16:59] [INFO ] Computed 3 invariants in 8 ms
Current structural bounds on expressions (after invariants) : Max Seen:[2, +inf, 1479, 1619, 1367] Max Struct:[+inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000001 steps (2 resets) in 2194 ms. (455 steps per ms)
FORMULA FunctionPointer-PT-c002-UpperBounds-03 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 4000004 steps (8 resets) in 2176 ms. (1837 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2, 1479, 1619, 1367] Max Struct:[+inf, +inf, +inf, +inf]
[2024-05-23 03:17:03] [INFO ] Flow matrix only has 728 transitions (discarded 541 similar events)
[2024-05-23 03:17:03] [INFO ] Invariant cache hit.
[2024-05-23 03:17:03] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:17:04] [INFO ] [Real]Absence check using state equation in 147 ms returned sat
[2024-05-23 03:17:04] [INFO ] State equation strengthened by 87 read => feed constraints.
[2024-05-23 03:17:04] [INFO ] [Real]Added 87 Read/Feed constraints in 28 ms returned sat
[2024-05-23 03:17:04] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:17:04] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:17:04] [INFO ] [Nat]Absence check using state equation in 135 ms returned sat
[2024-05-23 03:17:04] [INFO ] [Nat]Added 87 Read/Feed constraints in 72 ms returned sat
[2024-05-23 03:17:04] [INFO ] Deduced a trap composed of 89 places in 199 ms of which 3 ms to minimize.
[2024-05-23 03:17:04] [INFO ] Deduced a trap composed of 84 places in 188 ms of which 3 ms to minimize.
[2024-05-23 03:17:05] [INFO ] Deduced a trap composed of 77 places in 188 ms of which 3 ms to minimize.
[2024-05-23 03:17:05] [INFO ] Deduced a trap composed of 76 places in 188 ms of which 2 ms to minimize.
[2024-05-23 03:17:05] [INFO ] Deduced a trap composed of 131 places in 158 ms of which 3 ms to minimize.
[2024-05-23 03:17:05] [INFO ] Trap strengthening (SAT) tested/added 6/5 trap constraints in 1052 ms
[2024-05-23 03:17:05] [INFO ] Computed and/alt/rep : 352/2347/345 causal constraints (skipped 381 transitions) in 64 ms.
[2024-05-23 03:17:05] [INFO ] Added : 7 causal constraints over 2 iterations in 198 ms. Result :sat
Minimization took 266 ms.
[2024-05-23 03:17:06] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:17:06] [INFO ] [Real]Absence check using state equation in 134 ms returned sat
[2024-05-23 03:17:06] [INFO ] [Real]Added 87 Read/Feed constraints in 33 ms returned sat
[2024-05-23 03:17:06] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:17:06] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:17:06] [INFO ] [Nat]Absence check using state equation in 139 ms returned sat
[2024-05-23 03:17:06] [INFO ] [Nat]Added 87 Read/Feed constraints in 20 ms returned sat
[2024-05-23 03:17:06] [INFO ] Computed and/alt/rep : 352/2347/345 causal constraints (skipped 381 transitions) in 65 ms.
[2024-05-23 03:17:06] [INFO ] Added : 12 causal constraints over 3 iterations in 245 ms. Result :sat
Minimization took 262 ms.
[2024-05-23 03:17:07] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:17:07] [INFO ] [Real]Absence check using state equation in 144 ms returned sat
[2024-05-23 03:17:07] [INFO ] [Real]Added 87 Read/Feed constraints in 32 ms returned sat
[2024-05-23 03:17:07] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:17:07] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:17:07] [INFO ] [Nat]Absence check using state equation in 138 ms returned sat
[2024-05-23 03:17:07] [INFO ] [Nat]Added 87 Read/Feed constraints in 24 ms returned sat
[2024-05-23 03:17:07] [INFO ] Deduced a trap composed of 181 places in 193 ms of which 3 ms to minimize.
[2024-05-23 03:17:07] [INFO ] Deduced a trap composed of 155 places in 178 ms of which 3 ms to minimize.
[2024-05-23 03:17:07] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 441 ms
[2024-05-23 03:17:08] [INFO ] Computed and/alt/rep : 352/2347/345 causal constraints (skipped 381 transitions) in 68 ms.
[2024-05-23 03:17:08] [INFO ] Added : 10 causal constraints over 3 iterations in 258 ms. Result :sat
Minimization took 263 ms.
[2024-05-23 03:17:08] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:17:08] [INFO ] [Real]Absence check using state equation in 137 ms returned sat
[2024-05-23 03:17:08] [INFO ] [Real]Added 87 Read/Feed constraints in 25 ms returned sat
[2024-05-23 03:17:08] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:17:08] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:17:08] [INFO ] [Nat]Absence check using state equation in 131 ms returned sat
[2024-05-23 03:17:09] [INFO ] [Nat]Added 87 Read/Feed constraints in 34 ms returned sat
[2024-05-23 03:17:09] [INFO ] Computed and/alt/rep : 352/2347/345 causal constraints (skipped 381 transitions) in 66 ms.
[2024-05-23 03:17:09] [INFO ] Deduced a trap composed of 131 places in 150 ms of which 3 ms to minimize.
[2024-05-23 03:17:09] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 209 ms
[2024-05-23 03:17:09] [INFO ] Added : 12 causal constraints over 3 iterations in 494 ms. Result :sat
Minimization took 295 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[2, 1479, 1619, 1367] Max Struct:[+inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[2, 1479, 1619, 1367] Max Struct:[+inf, +inf, +inf, +inf]
Support contains 4 out of 445 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 445/445 places, 1269/1269 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 444 transition count 1267
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 444 transition count 1267
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 4 place count 444 transition count 1265
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 5 place count 443 transition count 1263
Iterating global reduction 1 with 1 rules applied. Total rules applied 6 place count 443 transition count 1263
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 7 place count 442 transition count 1261
Iterating global reduction 1 with 1 rules applied. Total rules applied 8 place count 442 transition count 1261
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 9 place count 441 transition count 1257
Iterating global reduction 1 with 1 rules applied. Total rules applied 10 place count 441 transition count 1257
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 11 place count 440 transition count 1255
Iterating global reduction 1 with 1 rules applied. Total rules applied 12 place count 440 transition count 1255
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 13 place count 439 transition count 1253
Iterating global reduction 1 with 1 rules applied. Total rules applied 14 place count 439 transition count 1253
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 15 place count 438 transition count 1251
Iterating global reduction 1 with 1 rules applied. Total rules applied 16 place count 438 transition count 1251
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 17 place count 437 transition count 1249
Iterating global reduction 1 with 1 rules applied. Total rules applied 18 place count 437 transition count 1249
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 19 place count 436 transition count 1247
Iterating global reduction 1 with 1 rules applied. Total rules applied 20 place count 436 transition count 1247
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 21 place count 435 transition count 1245
Iterating global reduction 1 with 1 rules applied. Total rules applied 22 place count 435 transition count 1245
Applied a total of 22 rules in 142 ms. Remains 435 /445 variables (removed 10) and now considering 1245/1269 (removed 24) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 142 ms. Remains : 435/445 places, 1245/1269 transitions.
[2024-05-23 03:17:14] [INFO ] Flow matrix only has 712 transitions (discarded 533 similar events)
Found an invariant !
This invariant on transitions {205=1, 303=1, 632=1, 708=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 350=1, 551=1, 705=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 4) seen :[0, 0, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[2, 1479, 1619, 1367] Max Struct:[+inf, +inf, +inf, +inf]
[2024-05-23 03:17:14] [INFO ] Flow matrix only has 712 transitions (discarded 533 similar events)
// Phase 1: matrix 712 rows 435 cols
[2024-05-23 03:17:14] [INFO ] Computed 3 invariants in 6 ms
Current structural bounds on expressions (after invariants) : Max Seen:[2, 1479, 1619, 1367] Max Struct:[+inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 2083 ms. (479 steps per ms)
BEST_FIRST walk for 4000004 steps (8 resets) in 2167 ms. (1845 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2, 1479, 1619, 1367] Max Struct:[+inf, +inf, +inf, +inf]
[2024-05-23 03:17:19] [INFO ] Flow matrix only has 712 transitions (discarded 533 similar events)
[2024-05-23 03:17:19] [INFO ] Invariant cache hit.
[2024-05-23 03:17:19] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:17:19] [INFO ] [Real]Absence check using state equation in 129 ms returned sat
[2024-05-23 03:17:19] [INFO ] State equation strengthened by 84 read => feed constraints.
[2024-05-23 03:17:19] [INFO ] [Real]Added 84 Read/Feed constraints in 28 ms returned sat
[2024-05-23 03:17:19] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:17:19] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:17:19] [INFO ] [Nat]Absence check using state equation in 130 ms returned sat
[2024-05-23 03:17:19] [INFO ] [Nat]Added 84 Read/Feed constraints in 54 ms returned sat
[2024-05-23 03:17:19] [INFO ] Deduced a trap composed of 131 places in 192 ms of which 3 ms to minimize.
[2024-05-23 03:17:20] [INFO ] Deduced a trap composed of 99 places in 188 ms of which 3 ms to minimize.
[2024-05-23 03:17:20] [INFO ] Deduced a trap composed of 83 places in 185 ms of which 6 ms to minimize.
[2024-05-23 03:17:20] [INFO ] Deduced a trap composed of 76 places in 183 ms of which 2 ms to minimize.
[2024-05-23 03:17:20] [INFO ] Deduced a trap composed of 131 places in 175 ms of which 3 ms to minimize.
[2024-05-23 03:17:20] [INFO ] Trap strengthening (SAT) tested/added 6/5 trap constraints in 1060 ms
[2024-05-23 03:17:20] [INFO ] Computed and/alt/rep : 341/2058/341 causal constraints (skipped 369 transitions) in 63 ms.
[2024-05-23 03:17:20] [INFO ] Added : 6 causal constraints over 2 iterations in 177 ms. Result :sat
Minimization took 266 ms.
[2024-05-23 03:17:21] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:17:21] [INFO ] [Real]Absence check using state equation in 135 ms returned sat
[2024-05-23 03:17:21] [INFO ] [Real]Added 84 Read/Feed constraints in 33 ms returned sat
[2024-05-23 03:17:21] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:17:21] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:17:21] [INFO ] [Nat]Absence check using state equation in 133 ms returned sat
[2024-05-23 03:17:21] [INFO ] [Nat]Added 84 Read/Feed constraints in 26 ms returned sat
[2024-05-23 03:17:21] [INFO ] Deduced a trap composed of 104 places in 190 ms of which 2 ms to minimize.
[2024-05-23 03:17:22] [INFO ] Deduced a trap composed of 103 places in 181 ms of which 3 ms to minimize.
[2024-05-23 03:17:22] [INFO ] Deduced a trap composed of 85 places in 176 ms of which 3 ms to minimize.
[2024-05-23 03:17:22] [INFO ] Deduced a trap composed of 78 places in 176 ms of which 3 ms to minimize.
[2024-05-23 03:17:22] [INFO ] Deduced a trap composed of 76 places in 178 ms of which 3 ms to minimize.
[2024-05-23 03:17:22] [INFO ] Deduced a trap composed of 73 places in 189 ms of which 3 ms to minimize.
[2024-05-23 03:17:23] [INFO ] Deduced a trap composed of 72 places in 187 ms of which 3 ms to minimize.
[2024-05-23 03:17:23] [INFO ] Trap strengthening (SAT) tested/added 8/7 trap constraints in 1440 ms
[2024-05-23 03:17:23] [INFO ] Computed and/alt/rep : 341/2058/341 causal constraints (skipped 369 transitions) in 63 ms.
[2024-05-23 03:17:23] [INFO ] Added : 20 causal constraints over 5 iterations in 351 ms. Result :sat
Minimization took 312 ms.
[2024-05-23 03:17:23] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:17:23] [INFO ] [Real]Absence check using state equation in 132 ms returned sat
[2024-05-23 03:17:24] [INFO ] [Real]Added 84 Read/Feed constraints in 55 ms returned sat
[2024-05-23 03:17:24] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:17:24] [INFO ] [Nat]Absence check using 3 positive place invariants in 9 ms returned sat
[2024-05-23 03:17:24] [INFO ] [Nat]Absence check using state equation in 138 ms returned sat
[2024-05-23 03:17:24] [INFO ] [Nat]Added 84 Read/Feed constraints in 42 ms returned sat
[2024-05-23 03:17:24] [INFO ] Deduced a trap composed of 104 places in 191 ms of which 3 ms to minimize.
[2024-05-23 03:17:24] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 237 ms
[2024-05-23 03:17:24] [INFO ] Computed and/alt/rep : 341/2058/341 causal constraints (skipped 369 transitions) in 62 ms.
[2024-05-23 03:17:24] [INFO ] Added : 9 causal constraints over 3 iterations in 227 ms. Result :sat
Minimization took 279 ms.
[2024-05-23 03:17:25] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:17:25] [INFO ] [Real]Absence check using state equation in 132 ms returned sat
[2024-05-23 03:17:25] [INFO ] [Real]Added 84 Read/Feed constraints in 29 ms returned sat
[2024-05-23 03:17:25] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:17:25] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:17:25] [INFO ] [Nat]Absence check using state equation in 129 ms returned sat
[2024-05-23 03:17:25] [INFO ] [Nat]Added 84 Read/Feed constraints in 24 ms returned sat
[2024-05-23 03:17:25] [INFO ] Deduced a trap composed of 81 places in 186 ms of which 3 ms to minimize.
[2024-05-23 03:17:25] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 227 ms
[2024-05-23 03:17:25] [INFO ] Computed and/alt/rep : 341/2058/341 causal constraints (skipped 369 transitions) in 58 ms.
[2024-05-23 03:17:26] [INFO ] Added : 9 causal constraints over 3 iterations in 261 ms. Result :sat
Minimization took 288 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[2, 1479, 1619, 1367] Max Struct:[+inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[2, 1479, 1619, 1367] Max Struct:[+inf, +inf, +inf, +inf]
Support contains 4 out of 435 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 435/435 places, 1245/1245 transitions.
Applied a total of 0 rules in 43 ms. Remains 435 /435 variables (removed 0) and now considering 1245/1245 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 44 ms. Remains : 435/435 places, 1245/1245 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 435/435 places, 1245/1245 transitions.
Applied a total of 0 rules in 43 ms. Remains 435 /435 variables (removed 0) and now considering 1245/1245 (removed 0) transitions.
[2024-05-23 03:17:26] [INFO ] Flow matrix only has 712 transitions (discarded 533 similar events)
[2024-05-23 03:17:26] [INFO ] Invariant cache hit.
[2024-05-23 03:17:26] [INFO ] Implicit Places using invariants in 299 ms returned []
[2024-05-23 03:17:26] [INFO ] Flow matrix only has 712 transitions (discarded 533 similar events)
[2024-05-23 03:17:26] [INFO ] Invariant cache hit.
[2024-05-23 03:17:26] [INFO ] State equation strengthened by 84 read => feed constraints.
[2024-05-23 03:17:27] [INFO ] Implicit Places using invariants and state equation in 1203 ms returned []
Implicit Place search using SMT with State Equation took 1502 ms to find 0 implicit places.
[2024-05-23 03:17:27] [INFO ] Redundant transitions in 19 ms returned []
Running 1243 sub problems to find dead transitions.
[2024-05-23 03:17:27] [INFO ] Flow matrix only has 712 transitions (discarded 533 similar events)
[2024-05-23 03:17:27] [INFO ] Invariant cache hit.
[2024-05-23 03:17:27] [INFO ] State equation strengthened by 84 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/435 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1243 unsolved
[2024-05-23 03:17:41] [INFO ] Deduced a trap composed of 131 places in 147 ms of which 3 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/435 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1243 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/435 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1243 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) 712/1147 variables, 435/439 constraints. Problems are: Problem set: 0 solved, 1243 unsolved
SMT process timed out in 34142ms, After SMT, problems are : Problem set: 0 solved, 1243 unsolved
Search for dead transitions found 0 dead transitions in 34153ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 35724 ms. Remains : 435/435 places, 1245/1245 transitions.
[2024-05-23 03:18:02] [INFO ] Flow matrix only has 712 transitions (discarded 533 similar events)
Found an invariant !
This invariant on transitions {205=1, 303=1, 632=1, 708=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 350=1, 551=1, 705=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 4) seen :[0, 0, 0, 2]
Current structural bounds on expressions (after cover walk) : Max Seen:[2, 1479, 1619, 1367] Max Struct:[+inf, +inf, +inf, +inf]
RANDOM walk for 40000 steps (8 resets) in 863 ms. (46 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40004 steps (8 resets) in 151 ms. (263 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40004 steps (8 resets) in 130 ms. (305 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40004 steps (8 resets) in 185 ms. (215 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40002 steps (8 resets) in 73 ms. (540 steps per ms) remains 4/4 properties
Interrupted probabilistic random walk after 264280 steps, run timeout after 3001 ms. (steps per millisecond=88 ) properties seen :0 out of 4
Probabilistic random walk after 264280 steps, saw 165657 distinct states, run finished after 3004 ms. (steps per millisecond=87 ) properties seen :0
[2024-05-23 03:18:05] [INFO ] Flow matrix only has 712 transitions (discarded 533 similar events)
[2024-05-23 03:18:05] [INFO ] Invariant cache hit.
[2024-05-23 03:18:05] [INFO ] State equation strengthened by 84 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/4 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 1 (OVERLAPS) 13/17 variables, 4/4 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/17 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 3 (OVERLAPS) 372/389 variables, 14/18 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/389 variables, 1/19 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/389 variables, 3/22 constraints. Problems are: Problem set: 0 solved, 4 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/389 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 7 (OVERLAPS) 8/397 variables, 1/23 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/397 variables, 2/25 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/397 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 10 (OVERLAPS) 614/1011 variables, 343/368 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/1011 variables, 81/449 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/1011 variables, 0/449 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 13 (OVERLAPS) 62/1073 variables, 1/450 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/1073 variables, 0/450 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 15 (OVERLAPS) 72/1145 variables, 70/520 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/1145 variables, 0/520 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 17 (OVERLAPS) 2/1147 variables, 2/522 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/1147 variables, 0/522 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 19 (OVERLAPS) 0/1147 variables, 0/522 constraints. Problems are: Problem set: 0 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1147/1147 variables, and 522 constraints, problems are : Problem set: 0 solved, 4 unsolved in 728 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 435/435 constraints, ReadFeed: 84/84 constraints, PredecessorRefiner: 4/4 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 4 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/4 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 1 (OVERLAPS) 13/17 variables, 4/4 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/17 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 3 (OVERLAPS) 372/389 variables, 14/18 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/389 variables, 1/19 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/389 variables, 3/22 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/389 variables, 3/25 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/389 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 8 (OVERLAPS) 8/397 variables, 1/26 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/397 variables, 2/28 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/397 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 11 (OVERLAPS) 614/1011 variables, 343/371 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/1011 variables, 81/452 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/1011 variables, 1/453 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/1011 variables, 0/453 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 15 (OVERLAPS) 62/1073 variables, 1/454 constraints. Problems are: Problem set: 0 solved, 4 unsolved
[2024-05-23 03:18:07] [INFO ] Deduced a trap composed of 135 places in 168 ms of which 2 ms to minimize.
At refinement iteration 16 (INCLUDED_ONLY) 0/1073 variables, 1/455 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/1073 variables, 0/455 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 18 (OVERLAPS) 72/1145 variables, 70/525 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/1145 variables, 0/525 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 20 (OVERLAPS) 2/1147 variables, 2/527 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/1147 variables, 0/527 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 22 (OVERLAPS) 0/1147 variables, 0/527 constraints. Problems are: Problem set: 0 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1147/1147 variables, and 527 constraints, problems are : Problem set: 0 solved, 4 unsolved in 1026 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 435/435 constraints, ReadFeed: 84/84 constraints, PredecessorRefiner: 4/4 constraints, Known Traps: 1/1 constraints]
After SMT, in 1781ms problems are : Problem set: 0 solved, 4 unsolved
Fused 4 Parikh solutions to 2 different solutions.
Parikh walk visited 1 properties in 30000 ms.
Support contains 3 out of 435 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 435/435 places, 1245/1245 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 434 transition count 1243
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 434 transition count 1243
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 3 place count 433 transition count 1241
Iterating global reduction 0 with 1 rules applied. Total rules applied 4 place count 433 transition count 1241
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 5 place count 432 transition count 1239
Iterating global reduction 0 with 1 rules applied. Total rules applied 6 place count 432 transition count 1239
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 7 place count 431 transition count 1237
Iterating global reduction 0 with 1 rules applied. Total rules applied 8 place count 431 transition count 1237
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 9 place count 430 transition count 1235
Iterating global reduction 0 with 1 rules applied. Total rules applied 10 place count 430 transition count 1235
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 11 place count 429 transition count 1233
Iterating global reduction 0 with 1 rules applied. Total rules applied 12 place count 429 transition count 1233
Applied a total of 12 rules in 97 ms. Remains 429 /435 variables (removed 6) and now considering 1233/1245 (removed 12) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 98 ms. Remains : 429/435 places, 1233/1245 transitions.
RANDOM walk for 40000 steps (8 resets) in 169 ms. (235 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40004 steps (8 resets) in 66 ms. (597 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40003 steps (8 resets) in 56 ms. (701 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40004 steps (8 resets) in 86 ms. (459 steps per ms) remains 3/3 properties
Interrupted probabilistic random walk after 297184 steps, run timeout after 3001 ms. (steps per millisecond=99 ) properties seen :0 out of 3
Probabilistic random walk after 297184 steps, saw 185831 distinct states, run finished after 3001 ms. (steps per millisecond=99 ) properties seen :0
[2024-05-23 03:18:41] [INFO ] Flow matrix only has 702 transitions (discarded 531 similar events)
// Phase 1: matrix 702 rows 429 cols
[2024-05-23 03:18:41] [INFO ] Computed 3 invariants in 2 ms
[2024-05-23 03:18:41] [INFO ] State equation strengthened by 81 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/3 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 10/13 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/13 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (OVERLAPS) 366/379 variables, 13/16 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/379 variables, 1/17 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/379 variables, 2/19 constraints. Problems are: Problem set: 0 solved, 3 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/379 variables, 0/19 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 7/386 variables, 1/20 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/386 variables, 1/21 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/386 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 10 (OVERLAPS) 610/996 variables, 341/362 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/996 variables, 79/441 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/996 variables, 0/441 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 13 (OVERLAPS) 62/1058 variables, 1/442 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/1058 variables, 0/442 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 15 (OVERLAPS) 71/1129 variables, 69/511 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/1129 variables, 0/511 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 17 (OVERLAPS) 2/1131 variables, 2/513 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/1131 variables, 0/513 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 19 (OVERLAPS) 0/1131 variables, 0/513 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1131/1131 variables, and 513 constraints, problems are : Problem set: 0 solved, 3 unsolved in 480 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 429/429 constraints, ReadFeed: 81/81 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/3 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 10/13 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/13 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (OVERLAPS) 366/379 variables, 13/16 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/379 variables, 1/17 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/379 variables, 2/19 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/379 variables, 2/21 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/379 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 8 (OVERLAPS) 7/386 variables, 1/22 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/386 variables, 1/23 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/386 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 11 (OVERLAPS) 610/996 variables, 341/364 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/996 variables, 79/443 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/996 variables, 1/444 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/996 variables, 0/444 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 15 (OVERLAPS) 62/1058 variables, 1/445 constraints. Problems are: Problem set: 0 solved, 3 unsolved
[2024-05-23 03:18:41] [INFO ] Deduced a trap composed of 135 places in 150 ms of which 2 ms to minimize.
At refinement iteration 16 (INCLUDED_ONLY) 0/1058 variables, 1/446 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/1058 variables, 0/446 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 18 (OVERLAPS) 71/1129 variables, 69/515 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/1129 variables, 0/515 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 20 (OVERLAPS) 2/1131 variables, 2/517 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/1131 variables, 0/517 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 22 (OVERLAPS) 0/1131 variables, 0/517 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1131/1131 variables, and 517 constraints, problems are : Problem set: 0 solved, 3 unsolved in 821 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 429/429 constraints, ReadFeed: 81/81 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 1/1 constraints]
After SMT, in 1325ms problems are : Problem set: 0 solved, 3 unsolved
Fused 3 Parikh solutions to 2 different solutions.
Parikh walk visited 0 properties in 1 ms.
Support contains 3 out of 429 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 429/429 places, 1233/1233 transitions.
Applied a total of 0 rules in 47 ms. Remains 429 /429 variables (removed 0) and now considering 1233/1233 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 47 ms. Remains : 429/429 places, 1233/1233 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 429/429 places, 1233/1233 transitions.
Applied a total of 0 rules in 43 ms. Remains 429 /429 variables (removed 0) and now considering 1233/1233 (removed 0) transitions.
[2024-05-23 03:18:42] [INFO ] Flow matrix only has 702 transitions (discarded 531 similar events)
[2024-05-23 03:18:42] [INFO ] Invariant cache hit.
[2024-05-23 03:18:42] [INFO ] Implicit Places using invariants in 315 ms returned []
[2024-05-23 03:18:42] [INFO ] Flow matrix only has 702 transitions (discarded 531 similar events)
[2024-05-23 03:18:42] [INFO ] Invariant cache hit.
[2024-05-23 03:18:42] [INFO ] State equation strengthened by 81 read => feed constraints.
[2024-05-23 03:18:44] [INFO ] Implicit Places using invariants and state equation in 1302 ms returned []
Implicit Place search using SMT with State Equation took 1618 ms to find 0 implicit places.
[2024-05-23 03:18:44] [INFO ] Redundant transitions in 20 ms returned []
Running 1231 sub problems to find dead transitions.
[2024-05-23 03:18:44] [INFO ] Flow matrix only has 702 transitions (discarded 531 similar events)
[2024-05-23 03:18:44] [INFO ] Invariant cache hit.
[2024-05-23 03:18:44] [INFO ] State equation strengthened by 81 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/429 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1231 unsolved
[2024-05-23 03:18:58] [INFO ] Deduced a trap composed of 131 places in 155 ms of which 3 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/429 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1231 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/429 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1231 unsolved
At refinement iteration 3 (OVERLAPS) 702/1131 variables, 429/433 constraints. Problems are: Problem set: 0 solved, 1231 unsolved
SMT process timed out in 34327ms, After SMT, problems are : Problem set: 0 solved, 1231 unsolved
Search for dead transitions found 0 dead transitions in 34340ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 36030 ms. Remains : 429/429 places, 1233/1233 transitions.
Attempting over-approximation, by ignoring read arcs.
Ensure Unique test removed 531 transitions
Reduce isomorphic transitions removed 531 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 11 transitions
Trivial Post-agglo rules discarded 11 transitions
Performed 11 trivial Post agglomeration. Transition count delta: 11
Iterating post reduction 0 with 542 rules applied. Total rules applied 542 place count 429 transition count 691
Reduce places removed 11 places and 0 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 1 with 12 rules applied. Total rules applied 554 place count 418 transition count 690
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 555 place count 417 transition count 690
Performed 73 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 73 Pre rules applied. Total rules applied 555 place count 417 transition count 617
Deduced a syphon composed of 73 places in 0 ms
Reduce places removed 73 places and 0 transitions.
Iterating global reduction 3 with 146 rules applied. Total rules applied 701 place count 344 transition count 617
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 3 with 256 rules applied. Total rules applied 957 place count 216 transition count 489
Discarding 64 places :
Symmetric choice reduction at 3 with 64 rule applications. Total rules 1021 place count 152 transition count 361
Iterating global reduction 3 with 64 rules applied. Total rules applied 1085 place count 152 transition count 361
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 3 with 2 rules applied. Total rules applied 1087 place count 152 transition count 359
Discarding 63 places :
Symmetric choice reduction at 4 with 63 rule applications. Total rules 1150 place count 89 transition count 233
Iterating global reduction 4 with 63 rules applied. Total rules applied 1213 place count 89 transition count 233
Discarding 63 places :
Symmetric choice reduction at 4 with 63 rule applications. Total rules 1276 place count 26 transition count 107
Iterating global reduction 4 with 63 rules applied. Total rules applied 1339 place count 26 transition count 107
Ensure Unique test removed 63 transitions
Reduce isomorphic transitions removed 63 transitions.
Iterating post reduction 4 with 63 rules applied. Total rules applied 1402 place count 26 transition count 44
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 5 with 1 Pre rules applied. Total rules applied 1402 place count 26 transition count 43
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 5 with 2 rules applied. Total rules applied 1404 place count 25 transition count 43
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 5 with 2 rules applied. Total rules applied 1406 place count 24 transition count 42
Applied a total of 1406 rules in 76 ms. Remains 24 /429 variables (removed 405) and now considering 42/1233 (removed 1191) transitions.
Running SMT prover for 3 properties.
// Phase 1: matrix 42 rows 24 cols
[2024-05-23 03:19:18] [INFO ] Computed 3 invariants in 0 ms
[2024-05-23 03:19:18] [INFO ] [Real]Absence check using 3 positive place invariants in 0 ms returned sat
[2024-05-23 03:19:18] [INFO ] After 183ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:3
[2024-05-23 03:19:18] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2024-05-23 03:19:18] [INFO ] After 14ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :3
[2024-05-23 03:19:18] [INFO ] State equation strengthened by 2 read => feed constraints.
[2024-05-23 03:19:18] [INFO ] After 5ms SMT Verify possible using 2 Read/Feed constraints in natural domain returned unsat :0 sat :3
TRAPS : Iteration 0
[2024-05-23 03:19:18] [INFO ] After 12ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :3
[2024-05-23 03:19:18] [INFO ] After 69ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :3
Over-approximation ignoring read arcs solved 0 properties in 340 ms.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[2, 1479, 1619, 1367] Max Struct:[+inf, +inf, +inf, +inf]
Starting property specific reduction for FunctionPointer-PT-c002-UpperBounds-00
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 03:19:18] [INFO ] Flow matrix only has 712 transitions (discarded 533 similar events)
// Phase 1: matrix 712 rows 435 cols
[2024-05-23 03:19:18] [INFO ] Computed 3 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10000 steps (2 resets) in 24 ms. (400 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:[1] Max Struct:[+inf]
[2024-05-23 03:19:18] [INFO ] Flow matrix only has 712 transitions (discarded 533 similar events)
[2024-05-23 03:19:18] [INFO ] Invariant cache hit.
[2024-05-23 03:19:18] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:19:18] [INFO ] [Real]Absence check using state equation in 139 ms returned sat
[2024-05-23 03:19:19] [INFO ] State equation strengthened by 84 read => feed constraints.
[2024-05-23 03:19:19] [INFO ] [Real]Added 84 Read/Feed constraints in 21 ms returned sat
[2024-05-23 03:19:19] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:19:19] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:19:19] [INFO ] [Nat]Absence check using state equation in 136 ms returned sat
[2024-05-23 03:19:19] [INFO ] [Nat]Added 84 Read/Feed constraints in 40 ms returned sat
[2024-05-23 03:19:19] [INFO ] Deduced a trap composed of 128 places in 200 ms of which 3 ms to minimize.
[2024-05-23 03:19:19] [INFO ] Deduced a trap composed of 97 places in 185 ms of which 3 ms to minimize.
[2024-05-23 03:19:19] [INFO ] Deduced a trap composed of 83 places in 189 ms of which 3 ms to minimize.
[2024-05-23 03:19:20] [INFO ] Deduced a trap composed of 76 places in 200 ms of which 3 ms to minimize.
[2024-05-23 03:19:20] [INFO ] Deduced a trap composed of 73 places in 204 ms of which 4 ms to minimize.
[2024-05-23 03:19:20] [INFO ] Deduced a trap composed of 131 places in 181 ms of which 3 ms to minimize.
[2024-05-23 03:19:20] [INFO ] Trap strengthening (SAT) tested/added 7/6 trap constraints in 1348 ms
[2024-05-23 03:19:20] [INFO ] Computed and/alt/rep : 341/2058/341 causal constraints (skipped 369 transitions) in 64 ms.
[2024-05-23 03:19:20] [INFO ] Added : 3 causal constraints over 1 iterations in 160 ms. Result :sat
Minimization took 263 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 435 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 435/435 places, 1245/1245 transitions.
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 3 place count 432 transition count 1237
Iterating global reduction 0 with 3 rules applied. Total rules applied 6 place count 432 transition count 1237
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 9 place count 429 transition count 1231
Iterating global reduction 0 with 3 rules applied. Total rules applied 12 place count 429 transition count 1231
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 15 place count 426 transition count 1225
Iterating global reduction 0 with 3 rules applied. Total rules applied 18 place count 426 transition count 1225
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 21 place count 423 transition count 1219
Iterating global reduction 0 with 3 rules applied. Total rules applied 24 place count 423 transition count 1219
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 27 place count 420 transition count 1213
Iterating global reduction 0 with 3 rules applied. Total rules applied 30 place count 420 transition count 1213
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 33 place count 417 transition count 1207
Iterating global reduction 0 with 3 rules applied. Total rules applied 36 place count 417 transition count 1207
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 37 place count 416 transition count 1205
Iterating global reduction 0 with 1 rules applied. Total rules applied 38 place count 416 transition count 1205
Applied a total of 38 rules in 147 ms. Remains 416 /435 variables (removed 19) and now considering 1205/1245 (removed 40) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 148 ms. Remains : 416/435 places, 1205/1245 transitions.
[2024-05-23 03:19:21] [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 25 ms. (steps per millisecond=400 ) properties (out of 1) seen :[1]
Current structural bounds on expressions (after cover walk) : Max Seen:[1] Max Struct:[+inf]
[2024-05-23 03:19:21] [INFO ] Flow matrix only has 680 transitions (discarded 525 similar events)
// Phase 1: matrix 680 rows 416 cols
[2024-05-23 03:19:21] [INFO ] Computed 3 invariants in 5 ms
Current structural bounds on expressions (after invariants) : Max Seen:[1] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 2028 ms. (492 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 524 ms. (1904 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1] Max Struct:[+inf]
[2024-05-23 03:19:24] [INFO ] Flow matrix only has 680 transitions (discarded 525 similar events)
[2024-05-23 03:19:24] [INFO ] Invariant cache hit.
[2024-05-23 03:19:24] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:19:24] [INFO ] [Real]Absence check using state equation in 139 ms returned sat
[2024-05-23 03:19:24] [INFO ] State equation strengthened by 75 read => feed constraints.
[2024-05-23 03:19:24] [INFO ] [Real]Added 75 Read/Feed constraints in 26 ms returned sat
[2024-05-23 03:19:24] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:19:24] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:19:24] [INFO ] [Nat]Absence check using state equation in 134 ms returned sat
[2024-05-23 03:19:24] [INFO ] [Nat]Added 75 Read/Feed constraints in 46 ms returned sat
[2024-05-23 03:19:24] [INFO ] Deduced a trap composed of 71 places in 182 ms of which 3 ms to minimize.
[2024-05-23 03:19:24] [INFO ] Deduced a trap composed of 135 places in 156 ms of which 2 ms to minimize.
[2024-05-23 03:19:25] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 405 ms
[2024-05-23 03:19:25] [INFO ] Computed and/alt/rep : 333/1252/331 causal constraints (skipped 347 transitions) in 63 ms.
[2024-05-23 03:19:25] [INFO ] Deduced a trap composed of 132 places in 180 ms of which 2 ms to minimize.
[2024-05-23 03:19:25] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 236 ms
[2024-05-23 03:19:25] [INFO ] Added : 4 causal constraints over 2 iterations in 442 ms. Result :sat
Minimization took 262 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:[2] 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 45 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 45 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 43 ms. Remains 416 /416 variables (removed 0) and now considering 1205/1205 (removed 0) transitions.
[2024-05-23 03:19:25] [INFO ] Flow matrix only has 680 transitions (discarded 525 similar events)
[2024-05-23 03:19:25] [INFO ] Invariant cache hit.
[2024-05-23 03:19:26] [INFO ] Implicit Places using invariants in 312 ms returned []
[2024-05-23 03:19:26] [INFO ] Flow matrix only has 680 transitions (discarded 525 similar events)
[2024-05-23 03:19:26] [INFO ] Invariant cache hit.
[2024-05-23 03:19:26] [INFO ] State equation strengthened by 75 read => feed constraints.
[2024-05-23 03:19:27] [INFO ] Implicit Places using invariants and state equation in 1067 ms returned []
Implicit Place search using SMT with State Equation took 1389 ms to find 0 implicit places.
[2024-05-23 03:19:27] [INFO ] Redundant transitions in 18 ms returned []
Running 1203 sub problems to find dead transitions.
[2024-05-23 03:19:27] [INFO ] Flow matrix only has 680 transitions (discarded 525 similar events)
[2024-05-23 03:19:27] [INFO ] Invariant cache hit.
[2024-05-23 03:19:27] [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 03:19:40] [INFO ] Deduced a trap composed of 131 places in 147 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
At refinement iteration 3 (OVERLAPS) 680/1096 variables, 416/420 constraints. Problems are: Problem set: 0 solved, 1203 unsolved
SMT process timed out in 34228ms, After SMT, problems are : Problem set: 0 solved, 1203 unsolved
Search for dead transitions found 0 dead transitions in 34240ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 35699 ms. Remains : 416/416 places, 1205/1205 transitions.
[2024-05-23 03:20:01] [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 26 ms. (steps per millisecond=384 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[2] Max Struct:[+inf]
[2024-05-23 03:20:01] [INFO ] Flow matrix only has 680 transitions (discarded 525 similar events)
[2024-05-23 03:20:01] [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 2039 ms. (490 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 526 ms. (1897 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2] Max Struct:[+inf]
[2024-05-23 03:20:04] [INFO ] Flow matrix only has 680 transitions (discarded 525 similar events)
[2024-05-23 03:20:04] [INFO ] Invariant cache hit.
[2024-05-23 03:20:04] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2024-05-23 03:20:04] [INFO ] [Real]Absence check using state equation in 136 ms returned sat
[2024-05-23 03:20:04] [INFO ] State equation strengthened by 75 read => feed constraints.
[2024-05-23 03:20:04] [INFO ] [Real]Added 75 Read/Feed constraints in 26 ms returned sat
[2024-05-23 03:20:04] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:20:04] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:20:04] [INFO ] [Nat]Absence check using state equation in 137 ms returned sat
[2024-05-23 03:20:04] [INFO ] [Nat]Added 75 Read/Feed constraints in 54 ms returned sat
[2024-05-23 03:20:05] [INFO ] Deduced a trap composed of 75 places in 180 ms of which 3 ms to minimize.
[2024-05-23 03:20:05] [INFO ] Deduced a trap composed of 74 places in 183 ms of which 2 ms to minimize.
[2024-05-23 03:20:05] [INFO ] Deduced a trap composed of 72 places in 178 ms of which 3 ms to minimize.
[2024-05-23 03:20:05] [INFO ] Deduced a trap composed of 135 places in 162 ms of which 3 ms to minimize.
[2024-05-23 03:20:05] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 810 ms
[2024-05-23 03:20:05] [INFO ] Computed and/alt/rep : 333/1252/331 causal constraints (skipped 347 transitions) in 61 ms.
[2024-05-23 03:20:05] [INFO ] Added : 6 causal constraints over 2 iterations in 195 ms. Result :sat
Minimization took 249 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 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 43 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 43 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 43 ms. Remains 416 /416 variables (removed 0) and now considering 1205/1205 (removed 0) transitions.
[2024-05-23 03:20:06] [INFO ] Flow matrix only has 680 transitions (discarded 525 similar events)
[2024-05-23 03:20:06] [INFO ] Invariant cache hit.
[2024-05-23 03:20:06] [INFO ] Implicit Places using invariants in 290 ms returned []
[2024-05-23 03:20:06] [INFO ] Flow matrix only has 680 transitions (discarded 525 similar events)
[2024-05-23 03:20:06] [INFO ] Invariant cache hit.
[2024-05-23 03:20:06] [INFO ] State equation strengthened by 75 read => feed constraints.
[2024-05-23 03:20:07] [INFO ] Implicit Places using invariants and state equation in 1076 ms returned []
Implicit Place search using SMT with State Equation took 1369 ms to find 0 implicit places.
[2024-05-23 03:20:07] [INFO ] Redundant transitions in 15 ms returned []
Running 1203 sub problems to find dead transitions.
[2024-05-23 03:20:07] [INFO ] Flow matrix only has 680 transitions (discarded 525 similar events)
[2024-05-23 03:20:07] [INFO ] Invariant cache hit.
[2024-05-23 03:20:07] [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 03:20:21] [INFO ] Deduced a trap composed of 131 places in 148 ms of which 3 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 34331ms, After SMT, problems are : Problem set: 0 solved, 1203 unsolved
Search for dead transitions found 0 dead transitions in 34342ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 35776 ms. Remains : 416/416 places, 1205/1205 transitions.
[2024-05-23 03:20:41] [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 34 ms. (steps per millisecond=294 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[2] Max Struct:[+inf]
RANDOM walk for 40002 steps (8 resets) in 98 ms. (404 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 505322 steps, run timeout after 3001 ms. (steps per millisecond=168 ) properties seen :0 out of 1
Probabilistic random walk after 505322 steps, saw 313447 distinct states, run finished after 3001 ms. (steps per millisecond=168 ) properties seen :0
[2024-05-23 03:20:45] [INFO ] Flow matrix only has 680 transitions (discarded 525 similar events)
[2024-05-23 03:20:45] [INFO ] Invariant cache hit.
[2024-05-23 03:20:45] [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) 4/5 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/5 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 343/348 variables, 6/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/348 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/348 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 6/354 variables, 2/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/354 variables, 2/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/354 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 598/952 variables, 333/345 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/952 variables, 74/419 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/952 variables, 0/419 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 62/1014 variables, 1/420 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/1014 variables, 0/420 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 68/1082 variables, 66/486 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/1082 variables, 0/486 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 8/1090 variables, 4/490 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/1090 variables, 0/490 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 6/1096 variables, 4/494 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/1096 variables, 0/494 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (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 293 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) 4/5 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/5 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 343/348 variables, 6/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/348 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/348 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 6/354 variables, 2/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/354 variables, 2/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/354 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 598/952 variables, 333/345 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/952 variables, 74/419 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/952 variables, 1/420 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/952 variables, 0/420 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 62/1014 variables, 1/421 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2024-05-23 03:20:46] [INFO ] Deduced a trap composed of 135 places in 162 ms of which 3 ms to minimize.
At refinement iteration 14 (INCLUDED_ONLY) 0/1014 variables, 1/422 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/1014 variables, 0/422 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 68/1082 variables, 66/488 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/1082 variables, 0/488 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 8/1090 variables, 4/492 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/1090 variables, 0/492 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 6/1096 variables, 4/496 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/1096 variables, 0/496 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 0/1096 variables, 0/496 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1096/1096 variables, and 496 constraints, problems are : Problem set: 0 solved, 1 unsolved in 546 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: 1/1 constraints]
After SMT, in 849ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 0 ms.
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 43 ms. Remains : 416/416 places, 1205/1205 transitions.
RANDOM walk for 40000 steps (8 resets) in 252 ms. (158 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (8 resets) in 60 ms. (655 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 511589 steps, run timeout after 3001 ms. (steps per millisecond=170 ) properties seen :0 out of 1
Probabilistic random walk after 511589 steps, saw 317291 distinct states, run finished after 3001 ms. (steps per millisecond=170 ) properties seen :0
[2024-05-23 03:20:49] [INFO ] Flow matrix only has 680 transitions (discarded 525 similar events)
[2024-05-23 03:20:49] [INFO ] Invariant cache hit.
[2024-05-23 03:20:49] [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) 4/5 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/5 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 343/348 variables, 6/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/348 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/348 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 6/354 variables, 2/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/354 variables, 2/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/354 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 598/952 variables, 333/345 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/952 variables, 74/419 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/952 variables, 0/419 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 62/1014 variables, 1/420 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/1014 variables, 0/420 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 68/1082 variables, 66/486 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/1082 variables, 0/486 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 8/1090 variables, 4/490 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/1090 variables, 0/490 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 6/1096 variables, 4/494 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/1096 variables, 0/494 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (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 306 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) 4/5 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/5 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 343/348 variables, 6/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/348 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/348 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 6/354 variables, 2/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/354 variables, 2/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/354 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 598/952 variables, 333/345 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/952 variables, 74/419 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/952 variables, 1/420 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/952 variables, 0/420 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 62/1014 variables, 1/421 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2024-05-23 03:20:50] [INFO ] Deduced a trap composed of 135 places in 153 ms of which 2 ms to minimize.
At refinement iteration 14 (INCLUDED_ONLY) 0/1014 variables, 1/422 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/1014 variables, 0/422 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 68/1082 variables, 66/488 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/1082 variables, 0/488 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 8/1090 variables, 4/492 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/1090 variables, 0/492 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 6/1096 variables, 4/496 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/1096 variables, 0/496 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 0/1096 variables, 0/496 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1096/1096 variables, and 496 constraints, problems are : Problem set: 0 solved, 1 unsolved in 556 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: 1/1 constraints]
After SMT, in 870ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 0 ms.
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 45 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 45 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 42 ms. Remains 416 /416 variables (removed 0) and now considering 1205/1205 (removed 0) transitions.
[2024-05-23 03:20:50] [INFO ] Flow matrix only has 680 transitions (discarded 525 similar events)
[2024-05-23 03:20:50] [INFO ] Invariant cache hit.
[2024-05-23 03:20:50] [INFO ] Implicit Places using invariants in 294 ms returned []
[2024-05-23 03:20:50] [INFO ] Flow matrix only has 680 transitions (discarded 525 similar events)
[2024-05-23 03:20:50] [INFO ] Invariant cache hit.
[2024-05-23 03:20:50] [INFO ] State equation strengthened by 75 read => feed constraints.
[2024-05-23 03:20:51] [INFO ] Implicit Places using invariants and state equation in 1048 ms returned []
Implicit Place search using SMT with State Equation took 1342 ms to find 0 implicit places.
[2024-05-23 03:20:51] [INFO ] Redundant transitions in 17 ms returned []
Running 1203 sub problems to find dead transitions.
[2024-05-23 03:20:51] [INFO ] Flow matrix only has 680 transitions (discarded 525 similar events)
[2024-05-23 03:20:51] [INFO ] Invariant cache hit.
[2024-05-23 03:20:51] [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 03:21:05] [INFO ] Deduced a trap composed of 131 places in 142 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
At refinement iteration 3 (OVERLAPS) 680/1096 variables, 416/420 constraints. Problems are: Problem set: 0 solved, 1203 unsolved
SMT process timed out in 34269ms, After SMT, problems are : Problem set: 0 solved, 1203 unsolved
Search for dead transitions found 0 dead transitions in 34280ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 35689 ms. Remains : 416/416 places, 1205/1205 transitions.
Attempting over-approximation, by ignoring read arcs.
Ensure Unique test removed 525 transitions
Reduce isomorphic transitions removed 525 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 11 transitions
Trivial Post-agglo rules discarded 11 transitions
Performed 11 trivial Post agglomeration. Transition count delta: 11
Iterating post reduction 0 with 536 rules applied. Total rules applied 536 place count 416 transition count 669
Reduce places removed 11 places and 0 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 1 with 12 rules applied. Total rules applied 548 place count 405 transition count 668
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 549 place count 404 transition count 668
Performed 68 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 68 Pre rules applied. Total rules applied 549 place count 404 transition count 600
Deduced a syphon composed of 68 places in 0 ms
Reduce places removed 68 places and 0 transitions.
Iterating global reduction 3 with 136 rules applied. Total rules applied 685 place count 336 transition count 600
Performed 127 Post agglomeration using F-continuation condition.Transition count delta: 127
Deduced a syphon composed of 127 places in 0 ms
Reduce places removed 127 places and 0 transitions.
Iterating global reduction 3 with 254 rules applied. Total rules applied 939 place count 209 transition count 473
Discarding 64 places :
Symmetric choice reduction at 3 with 64 rule applications. Total rules 1003 place count 145 transition count 345
Iterating global reduction 3 with 64 rules applied. Total rules applied 1067 place count 145 transition count 345
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 1068 place count 145 transition count 344
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 1 Pre rules applied. Total rules applied 1068 place count 145 transition count 343
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 1070 place count 144 transition count 343
Discarding 63 places :
Symmetric choice reduction at 4 with 63 rule applications. Total rules 1133 place count 81 transition count 217
Iterating global reduction 4 with 63 rules applied. Total rules applied 1196 place count 81 transition count 217
Discarding 63 places :
Symmetric choice reduction at 4 with 63 rule applications. Total rules 1259 place count 18 transition count 91
Iterating global reduction 4 with 63 rules applied. Total rules applied 1322 place count 18 transition count 91
Ensure Unique test removed 63 transitions
Reduce isomorphic transitions removed 63 transitions.
Iterating post reduction 4 with 63 rules applied. Total rules applied 1385 place count 18 transition count 28
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 5 with 1 Pre rules applied. Total rules applied 1385 place count 18 transition count 27
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 5 with 2 rules applied. Total rules applied 1387 place count 17 transition count 27
Applied a total of 1387 rules in 37 ms. Remains 17 /416 variables (removed 399) and now considering 27/1205 (removed 1178) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 27 rows 17 cols
[2024-05-23 03:21:25] [INFO ] Computed 3 invariants in 0 ms
[2024-05-23 03:21:25] [INFO ] [Real]Absence check using 3 positive place invariants in 0 ms returned sat
[2024-05-23 03:21:25] [INFO ] After 22ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2024-05-23 03:21:26] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2024-05-23 03:21:26] [INFO ] After 8ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2024-05-23 03:21:26] [INFO ] State equation strengthened by 2 read => feed constraints.
[2024-05-23 03:21:26] [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 03:21:26] [INFO ] After 4ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2024-05-23 03:21:26] [INFO ] After 36ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 97 ms.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[2] Max Struct:[+inf]
Ending property specific reduction for FunctionPointer-PT-c002-UpperBounds-00 in 127274 ms.
Starting property specific reduction for FunctionPointer-PT-c002-UpperBounds-04
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 03:21:26] [INFO ] Flow matrix only has 712 transitions (discarded 533 similar events)
// Phase 1: matrix 712 rows 435 cols
[2024-05-23 03:21:26] [INFO ] Computed 3 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10000 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 03:21:26] [INFO ] Flow matrix only has 712 transitions (discarded 533 similar events)
[2024-05-23 03:21:26] [INFO ] Invariant cache hit.
[2024-05-23 03:21:26] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:21:26] [INFO ] [Real]Absence check using state equation in 139 ms returned sat
[2024-05-23 03:21:26] [INFO ] State equation strengthened by 84 read => feed constraints.
[2024-05-23 03:21:26] [INFO ] [Real]Added 84 Read/Feed constraints in 26 ms returned sat
[2024-05-23 03:21:26] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:21:26] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:21:26] [INFO ] [Nat]Absence check using state equation in 143 ms returned sat
[2024-05-23 03:21:26] [INFO ] [Nat]Added 84 Read/Feed constraints in 30 ms returned sat
[2024-05-23 03:21:26] [INFO ] Computed and/alt/rep : 341/2058/341 causal constraints (skipped 369 transitions) in 65 ms.
[2024-05-23 03:21:26] [INFO ] Added : 28 causal constraints over 6 iterations in 335 ms. Result :sat
Minimization took 267 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 435 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 435/435 places, 1245/1245 transitions.
Graph (complete) has 2151 edges and 435 vertex of which 432 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 432 transition count 1240
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 8 place count 430 transition count 1234
Iterating global reduction 1 with 2 rules applied. Total rules applied 10 place count 430 transition count 1234
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 12 place count 428 transition count 1230
Iterating global reduction 1 with 2 rules applied. Total rules applied 14 place count 428 transition count 1230
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 16 place count 426 transition count 1226
Iterating global reduction 1 with 2 rules applied. Total rules applied 18 place count 426 transition count 1226
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 20 place count 424 transition count 1222
Iterating global reduction 1 with 2 rules applied. Total rules applied 22 place count 424 transition count 1222
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 24 place count 422 transition count 1218
Iterating global reduction 1 with 2 rules applied. Total rules applied 26 place count 422 transition count 1218
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 28 place count 420 transition count 1214
Iterating global reduction 1 with 2 rules applied. Total rules applied 30 place count 420 transition count 1214
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 31 place count 419 transition count 1212
Iterating global reduction 1 with 1 rules applied. Total rules applied 32 place count 419 transition count 1212
Applied a total of 32 rules in 122 ms. Remains 419 /435 variables (removed 16) and now considering 1212/1245 (removed 33) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 123 ms. Remains : 419/435 places, 1212/1245 transitions.
[2024-05-23 03:21:27] [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 31 ms. (steps per millisecond=322 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[0] Max Struct:[+inf]
[2024-05-23 03:21:27] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
// Phase 1: matrix 685 rows 419 cols
[2024-05-23 03:21:27] [INFO ] Computed 3 invariants in 7 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 2181 ms. (458 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 595 ms. (1677 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[+inf]
[2024-05-23 03:21:30] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
[2024-05-23 03:21:30] [INFO ] Invariant cache hit.
[2024-05-23 03:21:30] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:21:30] [INFO ] [Real]Absence check using state equation in 130 ms returned sat
[2024-05-23 03:21:30] [INFO ] State equation strengthened by 75 read => feed constraints.
[2024-05-23 03:21:30] [INFO ] [Real]Added 75 Read/Feed constraints in 27 ms returned sat
[2024-05-23 03:21:30] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:21:30] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:21:30] [INFO ] [Nat]Absence check using state equation in 138 ms returned sat
[2024-05-23 03:21:30] [INFO ] [Nat]Added 75 Read/Feed constraints in 35 ms returned sat
[2024-05-23 03:21:31] [INFO ] Computed and/alt/rep : 332/1248/332 causal constraints (skipped 351 transitions) in 62 ms.
[2024-05-23 03:21:31] [INFO ] Deduced a trap composed of 131 places in 165 ms of which 3 ms to minimize.
[2024-05-23 03:21:31] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 219 ms
[2024-05-23 03:21:31] [INFO ] Added : 11 causal constraints over 3 iterations in 491 ms. Result :sat
Minimization took 257 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 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 42 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 42 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 44 ms. Remains 419 /419 variables (removed 0) and now considering 1212/1212 (removed 0) transitions.
[2024-05-23 03:21:31] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
[2024-05-23 03:21:31] [INFO ] Invariant cache hit.
[2024-05-23 03:21:32] [INFO ] Implicit Places using invariants in 310 ms returned []
[2024-05-23 03:21:32] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
[2024-05-23 03:21:32] [INFO ] Invariant cache hit.
[2024-05-23 03:21:32] [INFO ] State equation strengthened by 75 read => feed constraints.
[2024-05-23 03:21:33] [INFO ] Implicit Places using invariants and state equation in 1318 ms returned []
Implicit Place search using SMT with State Equation took 1629 ms to find 0 implicit places.
[2024-05-23 03:21:33] [INFO ] Redundant transitions in 19 ms returned []
Running 1210 sub problems to find dead transitions.
[2024-05-23 03:21:33] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
[2024-05-23 03:21:33] [INFO ] Invariant cache hit.
[2024-05-23 03:21:33] [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 03:21:47] [INFO ] Deduced a trap composed of 131 places in 146 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 34558ms, After SMT, problems are : Problem set: 0 solved, 1210 unsolved
Search for dead transitions found 0 dead transitions in 34571ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 36276 ms. Remains : 419/419 places, 1212/1212 transitions.
[2024-05-23 03:22:08] [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 33 ms. (steps per millisecond=303 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 40004 steps (8 resets) in 138 ms. (287 steps per ms) remains 1/1 properties
BEST_FIRST walk for 33443 steps (7 resets) in 37 ms. (880 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-c002-UpperBounds-04 in 42424 ms.
Starting property specific reduction for FunctionPointer-PT-c002-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 03:22:08] [INFO ] Flow matrix only has 712 transitions (discarded 533 similar events)
// Phase 1: matrix 712 rows 435 cols
[2024-05-23 03:22:08] [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 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 03:22:08] [INFO ] Flow matrix only has 712 transitions (discarded 533 similar events)
[2024-05-23 03:22:08] [INFO ] Invariant cache hit.
[2024-05-23 03:22:08] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:22:08] [INFO ] [Real]Absence check using state equation in 138 ms returned sat
[2024-05-23 03:22:08] [INFO ] State equation strengthened by 84 read => feed constraints.
[2024-05-23 03:22:08] [INFO ] [Real]Added 84 Read/Feed constraints in 30 ms returned sat
[2024-05-23 03:22:08] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:22:08] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:22:08] [INFO ] [Nat]Absence check using state equation in 144 ms returned sat
[2024-05-23 03:22:08] [INFO ] [Nat]Added 84 Read/Feed constraints in 26 ms returned sat
[2024-05-23 03:22:09] [INFO ] Computed and/alt/rep : 341/2058/341 causal constraints (skipped 369 transitions) in 64 ms.
[2024-05-23 03:22:09] [INFO ] Added : 13 causal constraints over 3 iterations in 269 ms. Result :sat
Minimization took 269 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 435 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 435/435 places, 1245/1245 transitions.
Graph (complete) has 2151 edges and 435 vertex of which 432 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 432 transition count 1240
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 8 place count 430 transition count 1234
Iterating global reduction 1 with 2 rules applied. Total rules applied 10 place count 430 transition count 1234
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 12 place count 428 transition count 1230
Iterating global reduction 1 with 2 rules applied. Total rules applied 14 place count 428 transition count 1230
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 16 place count 426 transition count 1226
Iterating global reduction 1 with 2 rules applied. Total rules applied 18 place count 426 transition count 1226
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 20 place count 424 transition count 1222
Iterating global reduction 1 with 2 rules applied. Total rules applied 22 place count 424 transition count 1222
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 24 place count 422 transition count 1218
Iterating global reduction 1 with 2 rules applied. Total rules applied 26 place count 422 transition count 1218
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 28 place count 420 transition count 1214
Iterating global reduction 1 with 2 rules applied. Total rules applied 30 place count 420 transition count 1214
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 31 place count 419 transition count 1212
Iterating global reduction 1 with 1 rules applied. Total rules applied 32 place count 419 transition count 1212
Applied a total of 32 rules in 103 ms. Remains 419 /435 variables (removed 16) and now considering 1212/1245 (removed 33) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 104 ms. Remains : 419/435 places, 1212/1245 transitions.
[2024-05-23 03:22:09] [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 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 03:22:10] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
// Phase 1: matrix 685 rows 419 cols
[2024-05-23 03:22:10] [INFO ] Computed 3 invariants in 3 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 2112 ms. (473 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 536 ms. (1862 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[+inf]
[2024-05-23 03:22:12] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
[2024-05-23 03:22:12] [INFO ] Invariant cache hit.
[2024-05-23 03:22:12] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:22:12] [INFO ] [Real]Absence check using state equation in 131 ms returned sat
[2024-05-23 03:22:12] [INFO ] State equation strengthened by 75 read => feed constraints.
[2024-05-23 03:22:12] [INFO ] [Real]Added 75 Read/Feed constraints in 28 ms returned sat
[2024-05-23 03:22:12] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:22:13] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:22:13] [INFO ] [Nat]Absence check using state equation in 129 ms returned sat
[2024-05-23 03:22:13] [INFO ] [Nat]Added 75 Read/Feed constraints in 40 ms returned sat
[2024-05-23 03:22:13] [INFO ] Computed and/alt/rep : 332/1248/332 causal constraints (skipped 351 transitions) in 63 ms.
[2024-05-23 03:22:13] [INFO ] Deduced a trap composed of 135 places in 158 ms of which 3 ms to minimize.
[2024-05-23 03:22:13] [INFO ] Deduced a trap composed of 131 places in 145 ms of which 2 ms to minimize.
[2024-05-23 03:22:13] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 390 ms
[2024-05-23 03:22:13] [INFO ] Added : 14 causal constraints over 4 iterations in 708 ms. Result :sat
Minimization took 259 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 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 45 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 45 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 03:22:14] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
[2024-05-23 03:22:14] [INFO ] Invariant cache hit.
[2024-05-23 03:22:14] [INFO ] Implicit Places using invariants in 294 ms returned []
[2024-05-23 03:22:14] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
[2024-05-23 03:22:14] [INFO ] Invariant cache hit.
[2024-05-23 03:22:14] [INFO ] State equation strengthened by 75 read => feed constraints.
[2024-05-23 03:22:16] [INFO ] Implicit Places using invariants and state equation in 1830 ms returned []
Implicit Place search using SMT with State Equation took 2125 ms to find 0 implicit places.
[2024-05-23 03:22:16] [INFO ] Redundant transitions in 14 ms returned []
Running 1210 sub problems to find dead transitions.
[2024-05-23 03:22:16] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
[2024-05-23 03:22:16] [INFO ] Invariant cache hit.
[2024-05-23 03:22:16] [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 03:22:30] [INFO ] Deduced a trap composed of 131 places in 144 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 34428ms, After SMT, problems are : Problem set: 0 solved, 1210 unsolved
Search for dead transitions found 0 dead transitions in 34439ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 36631 ms. Remains : 419/419 places, 1212/1212 transitions.
[2024-05-23 03:22:50] [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 30 ms. (steps per millisecond=333 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 40002 steps (8 resets) in 187 ms. (212 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (8 resets) in 50 ms. (784 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 505129 steps, run timeout after 3001 ms. (steps per millisecond=168 ) properties seen :0 out of 1
Probabilistic random walk after 505129 steps, saw 309740 distinct states, run finished after 3001 ms. (steps per millisecond=168 ) properties seen :0
[2024-05-23 03:22:54] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
[2024-05-23 03:22:54] [INFO ] Invariant cache hit.
[2024-05-23 03:22:54] [INFO ] State equation strengthened by 75 read => feed constraints.
All remaining problems are real, not stopping.
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
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 268 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 285 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 567ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 1 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 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 45 ms. Remains : 419/419 places, 1212/1212 transitions.
RANDOM walk for 40002 steps (8 resets) in 136 ms. (291 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 487419 steps, run timeout after 3001 ms. (steps per millisecond=162 ) properties seen :0 out of 1
Probabilistic random walk after 487419 steps, saw 298881 distinct states, run finished after 3001 ms. (steps per millisecond=162 ) properties seen :0
[2024-05-23 03:22:57] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
[2024-05-23 03:22:57] [INFO ] Invariant cache hit.
[2024-05-23 03:22:57] [INFO ] State equation strengthened by 75 read => feed constraints.
All remaining problems are real, not stopping.
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
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 256 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 293 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 559ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 0 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 47 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 47 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 03:22:58] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
[2024-05-23 03:22:58] [INFO ] Invariant cache hit.
[2024-05-23 03:22:58] [INFO ] Implicit Places using invariants in 288 ms returned []
[2024-05-23 03:22:58] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
[2024-05-23 03:22:58] [INFO ] Invariant cache hit.
[2024-05-23 03:22:59] [INFO ] State equation strengthened by 75 read => feed constraints.
[2024-05-23 03:23:00] [INFO ] Implicit Places using invariants and state equation in 1812 ms returned []
Implicit Place search using SMT with State Equation took 2103 ms to find 0 implicit places.
[2024-05-23 03:23:00] [INFO ] Redundant transitions in 19 ms returned []
Running 1210 sub problems to find dead transitions.
[2024-05-23 03:23:00] [INFO ] Flow matrix only has 685 transitions (discarded 527 similar events)
[2024-05-23 03:23:00] [INFO ] Invariant cache hit.
[2024-05-23 03:23:00] [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 03:23:14] [INFO ] Deduced a trap composed of 131 places in 154 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 34461ms, After SMT, problems are : Problem set: 0 solved, 1210 unsolved
Search for dead transitions found 0 dead transitions in 34471ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 36654 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 31 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 03:23:35] [INFO ] Computed 3 invariants in 0 ms
[2024-05-23 03:23:35] [INFO ] After 33ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2024-05-23 03:23:35] [INFO ] [Nat]Absence check using 3 positive place invariants in 0 ms returned sat
[2024-05-23 03:23:35] [INFO ] After 6ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2024-05-23 03:23:35] [INFO ] State equation strengthened by 2 read => feed constraints.
[2024-05-23 03:23:35] [INFO ] After 2ms SMT Verify possible using 2 Read/Feed constraints in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2024-05-23 03:23:35] [INFO ] After 4ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2024-05-23 03:23:35] [INFO ] After 30ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 98 ms.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[0] Max Struct:[+inf]
Ending property specific reduction for FunctionPointer-PT-c002-UpperBounds-05 in 86863 ms.
Starting property specific reduction for FunctionPointer-PT-c002-UpperBounds-14
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 03:23:35] [INFO ] Flow matrix only has 712 transitions (discarded 533 similar events)
// Phase 1: matrix 712 rows 435 cols
[2024-05-23 03:23:35] [INFO ] Computed 3 invariants in 4 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10000 steps (2 resets) in 25 ms. (384 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 03:23:35] [INFO ] Flow matrix only has 712 transitions (discarded 533 similar events)
[2024-05-23 03:23:35] [INFO ] Invariant cache hit.
[2024-05-23 03:23:35] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:23:35] [INFO ] [Real]Absence check using state equation in 140 ms returned sat
[2024-05-23 03:23:35] [INFO ] State equation strengthened by 84 read => feed constraints.
[2024-05-23 03:23:35] [INFO ] [Real]Added 84 Read/Feed constraints in 28 ms returned sat
[2024-05-23 03:23:35] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:23:35] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:23:35] [INFO ] [Nat]Absence check using state equation in 138 ms returned sat
[2024-05-23 03:23:35] [INFO ] [Nat]Added 84 Read/Feed constraints in 26 ms returned sat
[2024-05-23 03:23:35] [INFO ] Computed and/alt/rep : 341/2058/341 causal constraints (skipped 369 transitions) in 65 ms.
[2024-05-23 03:23:36] [INFO ] Added : 11 causal constraints over 3 iterations in 274 ms. Result :sat
Minimization took 271 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 435 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 435/435 places, 1245/1245 transitions.
Graph (complete) has 2151 edges and 435 vertex of which 432 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 432 transition count 1240
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 8 place count 430 transition count 1236
Iterating global reduction 1 with 2 rules applied. Total rules applied 10 place count 430 transition count 1236
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 12 place count 428 transition count 1232
Iterating global reduction 1 with 2 rules applied. Total rules applied 14 place count 428 transition count 1232
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 16 place count 426 transition count 1228
Iterating global reduction 1 with 2 rules applied. Total rules applied 18 place count 426 transition count 1228
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 20 place count 424 transition count 1224
Iterating global reduction 1 with 2 rules applied. Total rules applied 22 place count 424 transition count 1224
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 24 place count 422 transition count 1220
Iterating global reduction 1 with 2 rules applied. Total rules applied 26 place count 422 transition count 1220
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 28 place count 420 transition count 1216
Iterating global reduction 1 with 2 rules applied. Total rules applied 30 place count 420 transition count 1216
Applied a total of 30 rules in 102 ms. Remains 420 /435 variables (removed 15) and now considering 1216/1245 (removed 29) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 102 ms. Remains : 420/435 places, 1216/1245 transitions.
[2024-05-23 03:23:36] [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 33 ms. (steps per millisecond=303 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[0] Max Struct:[+inf]
[2024-05-23 03:23:36] [INFO ] Flow matrix only has 687 transitions (discarded 529 similar events)
// Phase 1: matrix 687 rows 420 cols
[2024-05-23 03:23:36] [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 2051 ms. (487 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 528 ms. (1890 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[+inf]
[2024-05-23 03:23:39] [INFO ] Flow matrix only has 687 transitions (discarded 529 similar events)
[2024-05-23 03:23:39] [INFO ] Invariant cache hit.
[2024-05-23 03:23:39] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:23:39] [INFO ] [Real]Absence check using state equation in 137 ms returned sat
[2024-05-23 03:23:39] [INFO ] State equation strengthened by 75 read => feed constraints.
[2024-05-23 03:23:39] [INFO ] [Real]Added 75 Read/Feed constraints in 27 ms returned sat
[2024-05-23 03:23:39] [INFO ] Solution in real domain found non-integer solution.
[2024-05-23 03:23:39] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2024-05-23 03:23:39] [INFO ] [Nat]Absence check using state equation in 137 ms returned sat
[2024-05-23 03:23:39] [INFO ] [Nat]Added 75 Read/Feed constraints in 31 ms returned sat
[2024-05-23 03:23:39] [INFO ] Computed and/alt/rep : 332/1248/332 causal constraints (skipped 353 transitions) in 81 ms.
[2024-05-23 03:23:40] [INFO ] Deduced a trap composed of 71 places in 187 ms of which 3 ms to minimize.
[2024-05-23 03:23:40] [INFO ] Deduced a trap composed of 70 places in 179 ms of which 2 ms to minimize.
[2024-05-23 03:23:40] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 449 ms
[2024-05-23 03:23:40] [INFO ] Added : 10 causal constraints over 3 iterations in 730 ms. Result :sat
Minimization took 258 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 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 51 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 51 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 41 ms. Remains 420 /420 variables (removed 0) and now considering 1216/1216 (removed 0) transitions.
[2024-05-23 03:23:41] [INFO ] Flow matrix only has 687 transitions (discarded 529 similar events)
[2024-05-23 03:23:41] [INFO ] Invariant cache hit.
[2024-05-23 03:23:41] [INFO ] Implicit Places using invariants in 295 ms returned []
[2024-05-23 03:23:41] [INFO ] Flow matrix only has 687 transitions (discarded 529 similar events)
[2024-05-23 03:23:41] [INFO ] Invariant cache hit.
[2024-05-23 03:23:41] [INFO ] State equation strengthened by 75 read => feed constraints.
[2024-05-23 03:23:42] [INFO ] Implicit Places using invariants and state equation in 1224 ms returned []
Implicit Place search using SMT with State Equation took 1521 ms to find 0 implicit places.
[2024-05-23 03:23:42] [INFO ] Redundant transitions in 17 ms returned []
Running 1214 sub problems to find dead transitions.
[2024-05-23 03:23:42] [INFO ] Flow matrix only has 687 transitions (discarded 529 similar events)
[2024-05-23 03:23:42] [INFO ] Invariant cache hit.
[2024-05-23 03:23:42] [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 03:23:56] [INFO ] Deduced a trap composed of 131 places in 146 ms of which 3 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 34512ms, After SMT, problems are : Problem set: 0 solved, 1214 unsolved
Search for dead transitions found 0 dead transitions in 34523ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 36113 ms. Remains : 420/420 places, 1216/1216 transitions.
[2024-05-23 03:24:17] [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 40 ms. (steps per millisecond=250 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 40003 steps (8 resets) in 116 ms. (341 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 33 ms. (1176 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 489270 steps, run timeout after 3001 ms. (steps per millisecond=163 ) properties seen :0 out of 1
Probabilistic random walk after 489270 steps, saw 300016 distinct states, run finished after 3001 ms. (steps per millisecond=163 ) properties seen :0
[2024-05-23 03:24:20] [INFO ] Flow matrix only has 687 transitions (discarded 529 similar events)
[2024-05-23 03:24:20] [INFO ] Invariant cache hit.
[2024-05-23 03:24:20] [INFO ] State equation strengthened by 75 read => feed constraints.
All remaining problems are real, not stopping.
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) 9/13 variables, 3/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/13 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 352/365 variables, 8/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/365 variables, 1/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/365 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 7/372 variables, 2/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/372 variables, 3/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/372 variables, 0/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 605/977 variables, 337/355 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/977 variables, 74/429 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/977 variables, 0/429 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 62/1039 variables, 1/430 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/1039 variables, 0/430 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 68/1107 variables, 68/498 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/1107 variables, 0/498 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 0/1107 variables, 0/498 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1107/1107 variables, and 498 constraints, problems are : Problem set: 0 solved, 1 unsolved in 252 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 420/420 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) 9/13 variables, 3/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/13 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 352/365 variables, 8/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/365 variables, 1/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/365 variables, 1/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/365 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 7/372 variables, 2/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/372 variables, 3/19 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/372 variables, 0/19 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 605/977 variables, 337/356 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/977 variables, 74/430 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/977 variables, 0/430 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 62/1039 variables, 1/431 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/1039 variables, 0/431 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 68/1107 variables, 68/499 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/1107 variables, 0/499 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 0/1107 variables, 0/499 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1107/1107 variables, and 499 constraints, problems are : Problem set: 0 solved, 1 unsolved in 296 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 420/420 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 555ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 11 ms.
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 43 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.
RANDOM walk for 40000 steps (8 resets) in 199 ms. (200 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 488224 steps, run timeout after 3001 ms. (steps per millisecond=162 ) properties seen :0 out of 1
Probabilistic random walk after 488224 steps, saw 299374 distinct states, run finished after 3001 ms. (steps per millisecond=162 ) properties seen :0
[2024-05-23 03:24:24] [INFO ] Flow matrix only has 687 transitions (discarded 529 similar events)
[2024-05-23 03:24:24] [INFO ] Invariant cache hit.
[2024-05-23 03:24:24] [INFO ] State equation strengthened by 75 read => feed constraints.
All remaining problems are real, not stopping.
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) 9/13 variables, 3/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/13 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 352/365 variables, 8/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/365 variables, 1/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/365 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 7/372 variables, 2/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/372 variables, 3/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/372 variables, 0/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 605/977 variables, 337/355 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/977 variables, 74/429 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/977 variables, 0/429 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 62/1039 variables, 1/430 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/1039 variables, 0/430 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 68/1107 variables, 68/498 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/1107 variables, 0/498 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 0/1107 variables, 0/498 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1107/1107 variables, and 498 constraints, problems are : Problem set: 0 solved, 1 unsolved in 244 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 420/420 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) 9/13 variables, 3/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/13 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 352/365 variables, 8/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/365 variables, 1/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/365 variables, 1/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/365 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 7/372 variables, 2/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/372 variables, 3/19 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/372 variables, 0/19 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 605/977 variables, 337/356 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/977 variables, 74/430 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/977 variables, 0/430 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 62/1039 variables, 1/431 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/1039 variables, 0/431 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 68/1107 variables, 68/499 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/1107 variables, 0/499 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 0/1107 variables, 0/499 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1107/1107 variables, and 499 constraints, problems are : Problem set: 0 solved, 1 unsolved in 287 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 420/420 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 549ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 11 ms.
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 42 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 42 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 52 ms. Remains 420 /420 variables (removed 0) and now considering 1216/1216 (removed 0) transitions.
[2024-05-23 03:24:24] [INFO ] Flow matrix only has 687 transitions (discarded 529 similar events)
[2024-05-23 03:24:24] [INFO ] Invariant cache hit.
[2024-05-23 03:24:25] [INFO ] Implicit Places using invariants in 284 ms returned []
[2024-05-23 03:24:25] [INFO ] Flow matrix only has 687 transitions (discarded 529 similar events)
[2024-05-23 03:24:25] [INFO ] Invariant cache hit.
[2024-05-23 03:24:25] [INFO ] State equation strengthened by 75 read => feed constraints.
[2024-05-23 03:24:26] [INFO ] Implicit Places using invariants and state equation in 1231 ms returned []
Implicit Place search using SMT with State Equation took 1516 ms to find 0 implicit places.
[2024-05-23 03:24:26] [INFO ] Redundant transitions in 19 ms returned []
Running 1214 sub problems to find dead transitions.
[2024-05-23 03:24:26] [INFO ] Flow matrix only has 687 transitions (discarded 529 similar events)
[2024-05-23 03:24:26] [INFO ] Invariant cache hit.
[2024-05-23 03:24:26] [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 03:24:39] [INFO ] Deduced a trap composed of 131 places in 144 ms of which 3 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 34443ms, After SMT, problems are : Problem set: 0 solved, 1214 unsolved
Search for dead transitions found 0 dead transitions in 34454ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 36048 ms. Remains : 420/420 places, 1216/1216 transitions.
Attempting over-approximation, by ignoring read arcs.
Ensure Unique test removed 529 transitions
Reduce isomorphic transitions removed 529 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 10 transitions
Trivial Post-agglo rules discarded 10 transitions
Performed 10 trivial Post agglomeration. Transition count delta: 10
Iterating post reduction 0 with 539 rules applied. Total rules applied 539 place count 420 transition count 677
Reduce places removed 10 places and 0 transitions.
Iterating post reduction 1 with 10 rules applied. Total rules applied 549 place count 410 transition count 677
Performed 72 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 72 Pre rules applied. Total rules applied 549 place count 410 transition count 605
Deduced a syphon composed of 72 places in 0 ms
Reduce places removed 72 places and 0 transitions.
Iterating global reduction 2 with 144 rules applied. Total rules applied 693 place count 338 transition count 605
Performed 127 Post agglomeration using F-continuation condition.Transition count delta: 127
Deduced a syphon composed of 127 places in 0 ms
Reduce places removed 127 places and 0 transitions.
Iterating global reduction 2 with 254 rules applied. Total rules applied 947 place count 211 transition count 478
Discarding 64 places :
Symmetric choice reduction at 2 with 64 rule applications. Total rules 1011 place count 147 transition count 350
Iterating global reduction 2 with 64 rules applied. Total rules applied 1075 place count 147 transition count 350
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 2 with 2 rules applied. Total rules applied 1077 place count 147 transition count 348
Discarding 63 places :
Symmetric choice reduction at 3 with 63 rule applications. Total rules 1140 place count 84 transition count 222
Iterating global reduction 3 with 63 rules applied. Total rules applied 1203 place count 84 transition count 222
Discarding 63 places :
Symmetric choice reduction at 3 with 63 rule applications. Total rules 1266 place count 21 transition count 96
Iterating global reduction 3 with 63 rules applied. Total rules applied 1329 place count 21 transition count 96
Ensure Unique test removed 63 transitions
Reduce isomorphic transitions removed 63 transitions.
Iterating post reduction 3 with 63 rules applied. Total rules applied 1392 place count 21 transition count 33
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 1 Pre rules applied. Total rules applied 1392 place count 21 transition count 32
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 1394 place count 20 transition count 32
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
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 1396 place count 19 transition count 31
Applied a total of 1396 rules in 32 ms. Remains 19 /420 variables (removed 401) and now considering 31/1216 (removed 1185) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 31 rows 19 cols
[2024-05-23 03:25:00] [INFO ] Computed 3 invariants in 3 ms
[2024-05-23 03:25:00] [INFO ] After 19ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2024-05-23 03:25:00] [INFO ] [Nat]Absence check using 3 positive place invariants in 0 ms returned sat
[2024-05-23 03:25:00] [INFO ] After 7ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2024-05-23 03:25:00] [INFO ] State equation strengthened by 2 read => feed constraints.
[2024-05-23 03:25:00] [INFO ] After 2ms SMT Verify possible using 2 Read/Feed constraints in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2024-05-23 03:25:00] [INFO ] After 4ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2024-05-23 03:25:00] [INFO ] After 32ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 91 ms.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[0] Max Struct:[+inf]
Ending property specific reduction for FunctionPointer-PT-c002-UpperBounds-14 in 85517 ms.
[2024-05-23 03:25:01] [INFO ] Flatten gal took : 112 ms
[2024-05-23 03:25:01] [INFO ] Export to MCC of 4 properties in file /home/mcc/execution/UpperBounds.sr.xml took 2 ms.
[2024-05-23 03:25:01] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml of net with 435 places, 1245 transitions and 5108 arcs took 8 ms.
Total runtime 1273846 ms.
There are residual formulas that ITS could not solve within timeout
----------------------------------------------------------------------
GreatSPN-meddly tool, MCC 2023
----------------------------------------------------------------------

Running FunctionPointer-PT-c002

IS_COLORED=
IS_NUPN=

LOADING PETRI NET FILE /home/mcc/execution/412/model.pnml (PNML) ...
PNML VERSION 2009, P/T NET.
COLOR CLASSES: 0
CONSTANTS: 0
PLACES: 435
TRANSITIONS: 1245
COLOR VARS: 0
MEASURES: 0
LOADING TIME: [User 0.022s, Sys 0.006s]


SAVING FILE /home/mcc/execution/412/model (.net / .def) ...
EXPORT TIME: [User 0.003s, 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: 2076
MODEL NAME: /home/mcc/execution/412/model
435 places, 1245 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.
coverability test failed!!
Convergence in 15 steps.
The state space is infinite.
CANNOT_COMPUTE
EXITCODE: 0
----------------------------------------------------------------------

BK_STOP 1716434705132

--------------------
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//
++ ls /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202405141337.jar
++ perl -pe 's/.*\.//g'
+ 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-c002"
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-c002, examination is UpperBounds"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r179-tall-171640601200277"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/FunctionPointer-PT-c002.tgz
mv FunctionPointer-PT-c002 execution
cd execution
if [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "UpperBounds" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] || [ "UpperBounds" = "StateSpace" ]; then
rm -f GenericPropertiesVerdict.xml
fi
pwd
ls -lh

echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "UpperBounds" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "UpperBounds" != "StateSpace" ] ; then
echo "The expected result is a vector of booleans"
echo BOOL_VECTOR
else
echo "no data necessary for post analysis"
fi
echo
if [ -f "UpperBounds.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 ;