Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2023-input.r181-tall-167838868600372.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2023-input.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 2-5348
Executing tool lolaxred
Input is FlexibleBarrier-PT-22b, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r181-tall-167838868600372
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 2.2M
-rw-r--r-- 1 mcc users 8.0K Feb 25 12:33 CTLCardinality.txt
-rw-r--r-- 1 mcc users 88K Feb 25 12:33 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.8K Feb 25 12:33 CTLFireability.txt
-rw-r--r-- 1 mcc users 52K Feb 25 12:33 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:40 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.9K Feb 25 16:08 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Feb 25 16:08 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Feb 25 16:08 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Feb 25 16:08 LTLFireability.xml
-rw-r--r-- 1 mcc users 14K Feb 25 12:34 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 150K Feb 25 12:34 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 6.1K Feb 25 12:33 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 44K Feb 25 12:33 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Feb 25 16:08 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Feb 25 16:08 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 equiv_col
-rw-r--r-- 1 mcc users 4 Mar 5 18:22 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 iscolored
-rw-r--r-- 1 mcc users 1.8M Mar 5 18:22 model.pnml

--------------------
content from stdout:

=== Data for post analysis generated by BenchKit (invocation template)

The expected result is a vector of booleans
BOOL_VECTOR

FORMULA_NAME QuasiLiveness

=== Now, execution of the tool begins

BK_START 1678544592569

bash -c /home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n "BK_STOP " ; date -u +%s%3N
Invoking MCC driver with
BK_TOOL=lolaxred
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=FlexibleBarrier-PT-22b
Applying reductions before tool lola
Invoking reducer
Running Version 202303021504
[2023-03-11 14:23:14] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, QuasiLiveness, -timeout, 180, -rebuildPNML]
[2023-03-11 14:23:14] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-11 14:23:14] [INFO ] Load time of PNML (sax parser for PT used): 220 ms
[2023-03-11 14:23:14] [INFO ] Transformed 6478 places.
[2023-03-11 14:23:14] [INFO ] Transformed 7469 transitions.
[2023-03-11 14:23:14] [INFO ] Found NUPN structural information;
[2023-03-11 14:23:14] [INFO ] Parsed PT model containing 6478 places and 7469 transitions and 18797 arcs in 337 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 6478/6478 places, 7469/7469 transitions.
Graph (trivial) has 6410 edges and 6478 vertex of which 134 / 6478 are part of one of the 22 SCC in 33 ms
Free SCC test removed 112 places
Ensure Unique test removed 113 transitions
Reduce isomorphic transitions removed 113 transitions.
Drop transitions removed 1571 transitions
Trivial Post-agglo rules discarded 1571 transitions
Performed 1571 trivial Post agglomeration. Transition count delta: 1571
Iterating post reduction 0 with 1571 rules applied. Total rules applied 1572 place count 6366 transition count 5785
Reduce places removed 1571 places and 0 transitions.
Iterating post reduction 1 with 1571 rules applied. Total rules applied 3143 place count 4795 transition count 5785
Performed 462 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 462 Pre rules applied. Total rules applied 3143 place count 4795 transition count 5323
Deduced a syphon composed of 462 places in 22 ms
Reduce places removed 462 places and 0 transitions.
Iterating global reduction 2 with 924 rules applied. Total rules applied 4067 place count 4333 transition count 5323
Performed 2831 Post agglomeration using F-continuation condition.Transition count delta: 2831
Deduced a syphon composed of 2831 places in 1 ms
Reduce places removed 2831 places and 0 transitions.
Iterating global reduction 2 with 5662 rules applied. Total rules applied 9729 place count 1502 transition count 2492
Applied a total of 9729 rules in 756 ms. Remains 1502 /6478 variables (removed 4976) and now considering 2492/7469 (removed 4977) transitions.
[2023-03-11 14:23:15] [INFO ] Flow matrix only has 2427 transitions (discarded 65 similar events)
// Phase 1: matrix 2427 rows 1502 cols
[2023-03-11 14:23:15] [INFO ] Computed 24 place invariants in 128 ms
[2023-03-11 14:23:16] [INFO ] Implicit Places using invariants in 1366 ms returned []
[2023-03-11 14:23:16] [INFO ] Flow matrix only has 2427 transitions (discarded 65 similar events)
[2023-03-11 14:23:16] [INFO ] Invariant cache hit.
[2023-03-11 14:23:17] [INFO ] State equation strengthened by 133 read => feed constraints.
[2023-03-11 14:23:20] [INFO ] Implicit Places using invariants and state equation in 3343 ms returned []
Implicit Place search using SMT with State Equation took 4735 ms to find 0 implicit places.
[2023-03-11 14:23:20] [INFO ] Flow matrix only has 2427 transitions (discarded 65 similar events)
[2023-03-11 14:23:20] [INFO ] Invariant cache hit.
[2023-03-11 14:23:21] [INFO ] Dead Transitions using invariants and state equation in 1031 ms found 0 transitions.
Starting structural reductions in LIVENESS mode, iteration 1 : 1502/6478 places, 2492/7469 transitions.
Finished structural reductions in LIVENESS mode , in 1 iterations and 6527 ms. Remains : 1502/6478 places, 2492/7469 transitions.
Discarding 1455 transitions out of 2492. Remains 1037
Initial state reduction rules removed 1 formulas.
Incomplete random walk after 10000 steps, including 361 resets, run finished after 1361 ms. (steps per millisecond=7 ) properties (out of 1036) seen :88
Probabilistic random walk after 30001 steps, saw 29943 distinct states, run finished after 2734 ms. (steps per millisecond=10 ) properties seen :0
Running SMT prover for 948 properties.
[2023-03-11 14:23:25] [INFO ] Flow matrix only has 2427 transitions (discarded 65 similar events)
[2023-03-11 14:23:25] [INFO ] Invariant cache hit.
[2023-03-11 14:23:48] [INFO ] [Real]Absence check using 24 positive place invariants in 21 ms returned sat
java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Error writing to Z3 solver: java.io.IOException: Stream closed...
at fr.lip6.move.gal.structural.smt.SMTUtils.execAndCheckResult(SMTUtils.java:251)
at fr.lip6.move.gal.structural.smt.DeadlockTester.verifyPossible(DeadlockTester.java:629)
at fr.lip6.move.gal.structural.smt.DeadlockTester.testUnreachableWithSMTIncremental(DeadlockTester.java:339)
at fr.lip6.move.gal.structural.smt.DeadlockTester.testUnreachableWithSMT(DeadlockTester.java:223)
at fr.lip6.move.gal.application.solver.ReachabilitySolver.applyReductions(ReachabilitySolver.java:95)
at fr.lip6.move.gal.application.solver.global.GlobalPropertySolver.applyReachabilitySolver(GlobalPropertySolver.java:724)
at fr.lip6.move.gal.application.solver.global.GlobalPropertySolver.solveProperty(GlobalPropertySolver.java:558)
at fr.lip6.move.gal.application.solver.global.GlobalPropertySolver.preSolveLiveness(GlobalPropertySolver.java:412)
at fr.lip6.move.gal.application.solver.global.GlobalPropertySolver.preStableMarking(GlobalPropertySolver.java:321)
at fr.lip6.move.gal.application.solver.global.GlobalPropertySolver.solveProperty(GlobalPropertySolver.java:294)
at fr.lip6.move.gal.application.Application.startNoEx(Application.java:386)
at fr.lip6.move.gal.application.Application.start(Application.java:178)
at fr.lip6.move.gal.itscl.application.Application.start(Application.java:45)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203)
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:659)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:596)
at org.eclipse.equinox.launcher.Main.run(Main.java:1467)
at org.eclipse.equinox.launcher.Main.main(Main.java:1440)
[2023-03-11 14:23:51] [WARNING] SMT solver failed with error :SMT solver raised an error when submitting script.... while checking expressions.
[2023-03-11 14:23:51] [INFO ] After 25024ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0
Fused 948 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 0 ms.
Support contains 1412 out of 1502 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 1502/1502 places, 2492/2492 transitions.
Drop transitions removed 66 transitions
Reduce isomorphic transitions removed 66 transitions.
Iterating post reduction 0 with 66 rules applied. Total rules applied 66 place count 1502 transition count 2426
Free-agglomeration rule applied 22 times.
Iterating global reduction 1 with 22 rules applied. Total rules applied 88 place count 1502 transition count 2404
Reduce places removed 22 places and 0 transitions.
Iterating post reduction 1 with 22 rules applied. Total rules applied 110 place count 1480 transition count 2404
Applied a total of 110 rules in 527 ms. Remains 1480 /1502 variables (removed 22) and now considering 2404/2492 (removed 88) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 527 ms. Remains : 1480/1502 places, 2404/2492 transitions.
Interrupted random walk after 317964 steps, including 12213 resets, run timeout after 30001 ms. (steps per millisecond=10 ) properties seen 17
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 1 ms. (steps per millisecond=1001 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 1 ms. (steps per millisecond=1001 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 1 ms. (steps per millisecond=1001 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 1 ms. (steps per millisecond=1001 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 1 ms. (steps per millisecond=1001 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 1 ms. (steps per millisecond=1001 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 1 ms. (steps per millisecond=1001 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 1 ms. (steps per millisecond=1001 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 1 ms. (steps per millisecond=1001 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 1 ms. (steps per millisecond=1001 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 1 ms. (steps per millisecond=1001 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 1 ms. (steps per millisecond=1001 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 931) seen :0
Incomplete Best-First random walk after 1001 steps, including 0 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 931) seen :0
Probabilistic random walk after 1000000 steps, saw 330458 distinct states, run finished after 36939 ms. (steps per millisecond=27 ) properties seen :3
Running SMT prover for 928 properties.
// Phase 1: matrix 2404 rows 1480 cols
[2023-03-11 14:24:59] [INFO ] Computed 24 place invariants in 68 ms
[2023-03-11 14:25:20] [INFO ] [Real]Absence check using 24 positive place invariants in 20 ms returned sat
[2023-03-11 14:26:38] [INFO ] After 57288ms SMT Verify possible using state equation in real domain returned unsat :0 sat :900 real:28
[2023-03-11 14:26:38] [INFO ] State equation strengthened by 132 read => feed constraints.
[2023-03-11 14:27:34] [INFO ] After 55995ms SMT Verify possible using 132 Read/Feed constraints in real domain returned unsat :0 sat :0 real:928
[2023-03-11 14:27:34] [INFO ] After 154066ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:928
[2023-03-11 14:27:54] [INFO ] [Nat]Absence check using 24 positive place invariants in 21 ms returned sat
[2023-03-11 14:29:10] [INFO ] After 56947ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :928
[2023-03-11 14:30:09] [INFO ] After 59047ms SMT Verify possible using 132 Read/Feed constraints in natural domain returned unsat :0 sat :928
[2023-03-11 14:31:20] [INFO ] Deduced a trap composed of 3 places in 749 ms of which 4 ms to minimize.
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:251)
at fr.lip6.move.gal.structural.smt.DeadlockTester.refineWithTraps(DeadlockTester.java:1255)
at fr.lip6.move.gal.structural.smt.DeadlockTester.refineResultsWithTraps(DeadlockTester.java:736)
at fr.lip6.move.gal.structural.smt.DeadlockTester.verifyPossible(DeadlockTester.java:656)
at fr.lip6.move.gal.structural.smt.DeadlockTester.testUnreachableWithSMTIncremental(DeadlockTester.java:350)
at fr.lip6.move.gal.structural.smt.DeadlockTester.testUnreachableWithSMT(DeadlockTester.java:223)
at fr.lip6.move.gal.application.solver.ReachabilitySolver.applyReductions(ReachabilitySolver.java:95)
at fr.lip6.move.gal.application.solver.global.GlobalPropertySolver.applyReachabilitySolver(GlobalPropertySolver.java:724)
at fr.lip6.move.gal.application.solver.global.GlobalPropertySolver.solveProperty(GlobalPropertySolver.java:558)
at fr.lip6.move.gal.application.solver.global.GlobalPropertySolver.preSolveLiveness(GlobalPropertySolver.java:412)
at fr.lip6.move.gal.application.solver.global.GlobalPropertySolver.preStableMarking(GlobalPropertySolver.java:321)
at fr.lip6.move.gal.application.solver.global.GlobalPropertySolver.solveProperty(GlobalPropertySolver.java:294)
at fr.lip6.move.gal.application.Application.startNoEx(Application.java:386)
at fr.lip6.move.gal.application.Application.start(Application.java:178)
at fr.lip6.move.gal.itscl.application.Application.start(Application.java:45)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203)
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:659)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:596)
at org.eclipse.equinox.launcher.Main.run(Main.java:1467)
at org.eclipse.equinox.launcher.Main.main(Main.java:1440)
[2023-03-11 14:31:20] [WARNING] SMT solver failed with error :SMT solver raised an error when submitting script.... while checking expressions.
[2023-03-11 14:31:20] [INFO ] After 225771ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :0 real:928
Parikh walk visited 919 properties in 16364 ms.
Support contains 26 out of 1480 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 1480/1480 places, 2404/2404 transitions.
Discarding 454 places :
Symmetric choice reduction at 0 with 454 rule applications. Total rules 454 place count 1026 transition count 1950
Iterating global reduction 0 with 454 rules applied. Total rules applied 908 place count 1026 transition count 1950
Ensure Unique test removed 432 transitions
Reduce isomorphic transitions removed 432 transitions.
Iterating post reduction 0 with 432 rules applied. Total rules applied 1340 place count 1026 transition count 1518
Free-agglomeration rule applied 887 times.
Iterating global reduction 1 with 887 rules applied. Total rules applied 2227 place count 1026 transition count 631
Reduce places removed 887 places and 0 transitions.
Drop transitions removed 273 transitions
Reduce isomorphic transitions removed 273 transitions.
Iterating post reduction 1 with 1160 rules applied. Total rules applied 3387 place count 139 transition count 358
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 2 with 1 rules applied. Total rules applied 3388 place count 138 transition count 357
Reduce places removed 1 places and 0 transitions.
Graph (trivial) has 110 edges and 137 vertex of which 44 / 137 are part of one of the 22 SCC in 0 ms
Free SCC test removed 22 places
Iterating post reduction 2 with 2 rules applied. Total rules applied 3390 place count 115 transition count 357
Drop transitions removed 44 transitions
Reduce isomorphic transitions removed 44 transitions.
Iterating post reduction 3 with 44 rules applied. Total rules applied 3434 place count 115 transition count 313
Performed 22 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 22 Pre rules applied. Total rules applied 3434 place count 115 transition count 291
Deduced a syphon composed of 22 places in 0 ms
Reduce places removed 22 places and 0 transitions.
Iterating global reduction 4 with 44 rules applied. Total rules applied 3478 place count 93 transition count 291
Drop transitions removed 22 transitions
Reduce isomorphic transitions removed 22 transitions.
Iterating post reduction 4 with 22 rules applied. Total rules applied 3500 place count 93 transition count 269
Performed 22 Post agglomeration using F-continuation condition.Transition count delta: 22
Deduced a syphon composed of 22 places in 0 ms
Reduce places removed 22 places and 0 transitions.
Iterating global reduction 5 with 44 rules applied. Total rules applied 3544 place count 71 transition count 247
Free-agglomeration rule applied 22 times.
Iterating global reduction 5 with 22 rules applied. Total rules applied 3566 place count 71 transition count 225
Reduce places removed 32 places and 0 transitions.
Drop transitions removed 22 transitions
Ensure Unique test removed 72 transitions
Reduce isomorphic transitions removed 94 transitions.
Iterating post reduction 5 with 126 rules applied. Total rules applied 3692 place count 39 transition count 131
Drop transitions removed 79 transitions
Redundant transition composition rules discarded 79 transitions
Iterating global reduction 6 with 79 rules applied. Total rules applied 3771 place count 39 transition count 52
Applied a total of 3771 rules in 541 ms. Remains 39 /1480 variables (removed 1441) and now considering 52/2404 (removed 2352) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 541 ms. Remains : 39/1480 places, 52/2404 transitions.
Finished random walk after 1726 steps, including 79 resets, run visited all 9 properties in 26 ms. (steps per millisecond=66 )
Able to resolve query QuasiLiveness after proving 1037 properties.
FORMULA QuasiLiveness TRUE TECHNIQUES RANDOM_WALK PROBABILISTIC_WALK PARIKH_WALK TOPOLOGICAL INITIAL_STATE
Total runtime 502979 ms.
ITS solved all properties within timeout

BK_STOP 1678545098392

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

+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
+ export PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ export LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
+ LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202303021504.jar
+ VERSION=202303021504
+ echo 'Running Version 202303021504'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination QuasiLiveness -timeout 180 -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="FlexibleBarrier-PT-22b"
export BK_EXAMINATION="QuasiLiveness"
export BK_TOOL="lolaxred"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="1800"
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 2-5348"
echo " Executing tool lolaxred"
echo " Input is FlexibleBarrier-PT-22b, examination is QuasiLiveness"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r181-tall-167838868600372"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/FlexibleBarrier-PT-22b.tgz
mv FlexibleBarrier-PT-22b execution
cd execution
if [ "QuasiLiveness" = "ReachabilityDeadlock" ] || [ "QuasiLiveness" = "UpperBounds" ] || [ "QuasiLiveness" = "QuasiLiveness" ] || [ "QuasiLiveness" = "StableMarking" ] || [ "QuasiLiveness" = "Liveness" ] || [ "QuasiLiveness" = "OneSafe" ] || [ "QuasiLiveness" = "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 [ "QuasiLiveness" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "QuasiLiveness" != "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 "QuasiLiveness.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property QuasiLiveness.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "QuasiLiveness.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 '' QuasiLiveness.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "QuasiLiveness" = "ReachabilityDeadlock" ] || [ "QuasiLiveness" = "QuasiLiveness" ] || [ "QuasiLiveness" = "StableMarking" ] || [ "QuasiLiveness" = "Liveness" ] || [ "QuasiLiveness" = "OneSafe" ] ; then
echo "FORMULA_NAME QuasiLiveness"
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 ;