/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true --cacsl2boogietranslator.check.unreachability.of.reach_error.function false -i ../../../trunk/examples/svcomp/pthread-ext/40_barrier_vf.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 00:38:29,421 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 00:38:29,500 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-11-30 00:38:29,539 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 00:38:29,539 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 00:38:29,540 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 00:38:29,540 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 00:38:29,540 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 00:38:29,541 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 00:38:29,541 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 00:38:29,541 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 00:38:29,542 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 00:38:29,542 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 00:38:29,542 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 00:38:29,543 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 00:38:29,543 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 00:38:29,543 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 00:38:29,543 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 00:38:29,544 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 00:38:29,544 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 00:38:29,544 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 00:38:29,549 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 00:38:29,549 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 00:38:29,549 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 00:38:29,549 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 00:38:29,550 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 00:38:29,550 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 00:38:29,550 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 00:38:29,550 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 00:38:29,551 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 00:38:29,551 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 00:38:29,551 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 00:38:29,551 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 00:38:29,552 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2023-11-30 00:38:29,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 00:38:29,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 00:38:29,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 00:38:29,757 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 00:38:29,757 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 00:38:29,758 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/40_barrier_vf.i [2023-11-30 00:38:31,008 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 00:38:31,263 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 00:38:31,264 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/40_barrier_vf.i [2023-11-30 00:38:31,276 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0aa1dfdf3/6f0f92963dd44bde80ef945d0e71a0fa/FLAGa02256478 [2023-11-30 00:38:31,289 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0aa1dfdf3/6f0f92963dd44bde80ef945d0e71a0fa [2023-11-30 00:38:31,292 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 00:38:31,293 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 00:38:31,295 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 00:38:31,295 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 00:38:31,299 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 00:38:31,300 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:38:31" (1/1) ... [2023-11-30 00:38:31,301 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ef8b22a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:38:31, skipping insertion in model container [2023-11-30 00:38:31,302 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:38:31" (1/1) ... [2023-11-30 00:38:31,346 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 00:38:31,623 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 00:38:31,642 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 00:38:31,705 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 00:38:31,734 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 00:38:31,734 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 00:38:31,741 INFO L206 MainTranslator]: Completed translation [2023-11-30 00:38:31,741 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:38:31 WrapperNode [2023-11-30 00:38:31,741 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 00:38:31,743 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 00:38:31,743 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 00:38:31,743 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 00:38:31,749 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:38:31" (1/1) ... [2023-11-30 00:38:31,776 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:38:31" (1/1) ... [2023-11-30 00:38:31,797 INFO L138 Inliner]: procedures = 173, calls = 25, calls flagged for inlining = 11, calls inlined = 13, statements flattened = 126 [2023-11-30 00:38:31,797 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 00:38:31,798 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 00:38:31,798 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 00:38:31,798 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 00:38:31,806 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:38:31" (1/1) ... [2023-11-30 00:38:31,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:38:31" (1/1) ... [2023-11-30 00:38:31,821 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:38:31" (1/1) ... [2023-11-30 00:38:31,822 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:38:31" (1/1) ... [2023-11-30 00:38:31,827 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:38:31" (1/1) ... [2023-11-30 00:38:31,830 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:38:31" (1/1) ... [2023-11-30 00:38:31,831 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:38:31" (1/1) ... [2023-11-30 00:38:31,832 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:38:31" (1/1) ... [2023-11-30 00:38:31,835 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 00:38:31,836 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 00:38:31,836 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 00:38:31,836 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 00:38:31,837 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:38:31" (1/1) ... [2023-11-30 00:38:31,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 00:38:31,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 00:38:31,877 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-30 00:38:31,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-30 00:38:31,908 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-30 00:38:31,908 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-30 00:38:31,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 00:38:31,908 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-30 00:38:31,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 00:38:31,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 00:38:31,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 00:38:31,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 00:38:31,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-30 00:38:31,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 00:38:31,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 00:38:31,912 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-30 00:38:32,028 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 00:38:32,029 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 00:38:32,197 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 00:38:32,293 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 00:38:32,294 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-30 00:38:32,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:38:32 BoogieIcfgContainer [2023-11-30 00:38:32,295 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 00:38:32,297 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 00:38:32,297 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 00:38:32,299 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 00:38:32,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:38:31" (1/3) ... [2023-11-30 00:38:32,300 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d887028 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:38:32, skipping insertion in model container [2023-11-30 00:38:32,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:38:31" (2/3) ... [2023-11-30 00:38:32,300 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d887028 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:38:32, skipping insertion in model container [2023-11-30 00:38:32,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:38:32" (3/3) ... [2023-11-30 00:38:32,302 INFO L112 eAbstractionObserver]: Analyzing ICFG 40_barrier_vf.i [2023-11-30 00:38:32,316 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 00:38:32,316 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2023-11-30 00:38:32,316 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 00:38:32,353 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-30 00:38:32,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 80 transitions, 164 flow [2023-11-30 00:38:32,415 INFO L124 PetriNetUnfolderBase]: 5/91 cut-off events. [2023-11-30 00:38:32,415 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 00:38:32,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 91 events. 5/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 127 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 66. Up to 4 conditions per place. [2023-11-30 00:38:32,421 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 80 transitions, 164 flow [2023-11-30 00:38:32,425 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 80 transitions, 164 flow [2023-11-30 00:38:32,433 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 00:38:32,440 INFO L362 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6e7641c1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 00:38:32,440 INFO L363 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2023-11-30 00:38:32,447 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 00:38:32,448 INFO L124 PetriNetUnfolderBase]: 2/31 cut-off events. [2023-11-30 00:38:32,448 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 00:38:32,448 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 00:38:32,449 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 00:38:32,449 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-30 00:38:32,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 00:38:32,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1920762975, now seen corresponding path program 1 times [2023-11-30 00:38:32,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 00:38:32,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366124126] [2023-11-30 00:38:32,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 00:38:32,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 00:38:32,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 00:38:32,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 00:38:32,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 00:38:32,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366124126] [2023-11-30 00:38:32,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366124126] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 00:38:32,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 00:38:32,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-30 00:38:32,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100757632] [2023-11-30 00:38:32,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 00:38:32,638 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-30 00:38:32,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 00:38:32,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-30 00:38:32,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-30 00:38:32,665 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 80 [2023-11-30 00:38:32,667 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 80 transitions, 164 flow. Second operand has 2 states, 2 states have (on average 56.0) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:32,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 00:38:32,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 80 [2023-11-30 00:38:32,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 00:38:32,704 INFO L124 PetriNetUnfolderBase]: 1/58 cut-off events. [2023-11-30 00:38:32,704 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-30 00:38:32,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 58 events. 1/58 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 33 event pairs, 0 based on Foata normal form. 12/65 useless extension candidates. Maximal degree in co-relation 47. Up to 9 conditions per place. [2023-11-30 00:38:32,706 INFO L140 encePairwiseOnDemand]: 64/80 looper letters, 8 selfloop transitions, 0 changer transitions 0/54 dead transitions. [2023-11-30 00:38:32,706 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 54 transitions, 128 flow [2023-11-30 00:38:32,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-30 00:38:32,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-30 00:38:32,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 134 transitions. [2023-11-30 00:38:32,715 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8375 [2023-11-30 00:38:32,716 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 134 transitions. [2023-11-30 00:38:32,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 134 transitions. [2023-11-30 00:38:32,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 00:38:32,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 134 transitions. [2023-11-30 00:38:32,721 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 67.0) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:32,724 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:32,724 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:32,727 INFO L307 CegarLoopForPetriNet]: 79 programPoint places, -22 predicate places. [2023-11-30 00:38:32,728 INFO L500 AbstractCegarLoop]: Abstraction has has 57 places, 54 transitions, 128 flow [2023-11-30 00:38:32,728 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 56.0) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:32,728 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 00:38:32,728 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 00:38:32,729 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 00:38:32,729 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-30 00:38:32,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 00:38:32,730 INFO L85 PathProgramCache]: Analyzing trace with hash 982732676, now seen corresponding path program 1 times [2023-11-30 00:38:32,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 00:38:32,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065612868] [2023-11-30 00:38:32,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 00:38:32,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 00:38:32,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 00:38:32,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 00:38:32,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 00:38:32,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065612868] [2023-11-30 00:38:32,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065612868] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 00:38:32,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 00:38:32,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 00:38:32,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179273812] [2023-11-30 00:38:32,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 00:38:32,807 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 00:38:32,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 00:38:32,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 00:38:32,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 00:38:32,810 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 80 [2023-11-30 00:38:32,812 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 54 transitions, 128 flow. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:32,813 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 00:38:32,813 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 80 [2023-11-30 00:38:32,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 00:38:32,849 INFO L124 PetriNetUnfolderBase]: 0/60 cut-off events. [2023-11-30 00:38:32,849 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-30 00:38:32,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 60 events. 0/60 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 0. Up to 10 conditions per place. [2023-11-30 00:38:32,850 INFO L140 encePairwiseOnDemand]: 74/80 looper letters, 15 selfloop transitions, 4 changer transitions 0/53 dead transitions. [2023-11-30 00:38:32,850 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 53 transitions, 166 flow [2023-11-30 00:38:32,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 00:38:32,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 00:38:32,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 150 transitions. [2023-11-30 00:38:32,852 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.625 [2023-11-30 00:38:32,852 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 150 transitions. [2023-11-30 00:38:32,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 150 transitions. [2023-11-30 00:38:32,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 00:38:32,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 150 transitions. [2023-11-30 00:38:32,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:32,855 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:32,856 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:32,856 INFO L307 CegarLoopForPetriNet]: 79 programPoint places, -22 predicate places. [2023-11-30 00:38:32,857 INFO L500 AbstractCegarLoop]: Abstraction has has 57 places, 53 transitions, 166 flow [2023-11-30 00:38:32,857 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:32,857 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 00:38:32,857 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 00:38:32,857 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 00:38:32,858 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-30 00:38:32,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 00:38:32,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1856370757, now seen corresponding path program 1 times [2023-11-30 00:38:32,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 00:38:32,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511115297] [2023-11-30 00:38:32,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 00:38:32,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 00:38:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-30 00:38:32,878 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-30 00:38:32,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-30 00:38:32,904 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-30 00:38:32,905 INFO L372 BasicCegarLoop]: Counterexample is feasible [2023-11-30 00:38:32,906 INFO L810 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2023-11-30 00:38:32,907 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2023-11-30 00:38:32,908 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2023-11-30 00:38:32,908 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2023-11-30 00:38:32,908 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2023-11-30 00:38:32,908 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2023-11-30 00:38:32,909 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2023-11-30 00:38:32,909 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2023-11-30 00:38:32,909 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2023-11-30 00:38:32,909 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2023-11-30 00:38:32,910 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2023-11-30 00:38:32,910 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2023-11-30 00:38:32,910 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2023-11-30 00:38:32,910 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2023-11-30 00:38:32,911 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2023-11-30 00:38:32,911 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2023-11-30 00:38:32,911 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2023-11-30 00:38:32,911 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2023-11-30 00:38:32,911 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2023-11-30 00:38:32,912 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining) [2023-11-30 00:38:32,912 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining) [2023-11-30 00:38:32,912 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2023-11-30 00:38:32,912 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2023-11-30 00:38:32,913 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2023-11-30 00:38:32,913 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2023-11-30 00:38:32,913 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2023-11-30 00:38:32,913 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2023-11-30 00:38:32,913 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2023-11-30 00:38:32,914 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2023-11-30 00:38:32,914 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2023-11-30 00:38:32,914 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2023-11-30 00:38:32,914 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 00:38:32,915 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-30 00:38:32,917 WARN L227 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-30 00:38:32,917 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-30 00:38:32,953 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-30 00:38:32,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 134 transitions, 278 flow [2023-11-30 00:38:32,984 INFO L124 PetriNetUnfolderBase]: 9/158 cut-off events. [2023-11-30 00:38:32,984 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-30 00:38:32,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 158 events. 9/158 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 403 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 119. Up to 6 conditions per place. [2023-11-30 00:38:32,986 INFO L82 GeneralOperation]: Start removeDead. Operand has 132 places, 134 transitions, 278 flow [2023-11-30 00:38:32,989 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 132 places, 134 transitions, 278 flow [2023-11-30 00:38:32,990 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 00:38:32,991 INFO L362 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6e7641c1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 00:38:32,991 INFO L363 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2023-11-30 00:38:32,998 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 00:38:32,999 INFO L124 PetriNetUnfolderBase]: 2/31 cut-off events. [2023-11-30 00:38:32,999 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 00:38:32,999 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 00:38:32,999 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 00:38:33,000 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2023-11-30 00:38:33,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 00:38:33,000 INFO L85 PathProgramCache]: Analyzing trace with hash 742889569, now seen corresponding path program 1 times [2023-11-30 00:38:33,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 00:38:33,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61698855] [2023-11-30 00:38:33,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 00:38:33,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 00:38:33,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 00:38:33,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 00:38:33,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 00:38:33,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61698855] [2023-11-30 00:38:33,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61698855] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 00:38:33,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 00:38:33,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-30 00:38:33,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169351228] [2023-11-30 00:38:33,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 00:38:33,080 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-30 00:38:33,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 00:38:33,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-30 00:38:33,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-30 00:38:33,082 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 134 [2023-11-30 00:38:33,082 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 134 transitions, 278 flow. Second operand has 2 states, 2 states have (on average 87.0) internal successors, (174), 2 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:33,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 00:38:33,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 134 [2023-11-30 00:38:33,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 00:38:33,215 INFO L124 PetriNetUnfolderBase]: 62/332 cut-off events. [2023-11-30 00:38:33,215 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2023-11-30 00:38:33,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 490 conditions, 332 events. 62/332 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1646 event pairs, 56 based on Foata normal form. 121/412 useless extension candidates. Maximal degree in co-relation 380. Up to 129 conditions per place. [2023-11-30 00:38:33,223 INFO L140 encePairwiseOnDemand]: 104/134 looper letters, 16 selfloop transitions, 0 changer transitions 0/89 dead transitions. [2023-11-30 00:38:33,223 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 89 transitions, 220 flow [2023-11-30 00:38:33,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-30 00:38:33,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-30 00:38:33,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 218 transitions. [2023-11-30 00:38:33,230 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8134328358208955 [2023-11-30 00:38:33,230 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 218 transitions. [2023-11-30 00:38:33,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 218 transitions. [2023-11-30 00:38:33,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 00:38:33,232 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 218 transitions. [2023-11-30 00:38:33,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 109.0) internal successors, (218), 2 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:33,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:33,236 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:33,239 INFO L307 CegarLoopForPetriNet]: 132 programPoint places, -39 predicate places. [2023-11-30 00:38:33,239 INFO L500 AbstractCegarLoop]: Abstraction has has 93 places, 89 transitions, 220 flow [2023-11-30 00:38:33,240 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 87.0) internal successors, (174), 2 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:33,240 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 00:38:33,240 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 00:38:33,240 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 00:38:33,240 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2023-11-30 00:38:33,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 00:38:33,241 INFO L85 PathProgramCache]: Analyzing trace with hash 952325028, now seen corresponding path program 1 times [2023-11-30 00:38:33,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 00:38:33,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106483273] [2023-11-30 00:38:33,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 00:38:33,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 00:38:33,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 00:38:33,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 00:38:33,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 00:38:33,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106483273] [2023-11-30 00:38:33,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106483273] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 00:38:33,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 00:38:33,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 00:38:33,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814648848] [2023-11-30 00:38:33,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 00:38:33,302 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 00:38:33,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 00:38:33,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 00:38:33,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 00:38:33,304 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 134 [2023-11-30 00:38:33,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 89 transitions, 220 flow. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:33,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 00:38:33,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 134 [2023-11-30 00:38:33,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 00:38:33,539 INFO L124 PetriNetUnfolderBase]: 470/1509 cut-off events. [2023-11-30 00:38:33,539 INFO L125 PetriNetUnfolderBase]: For 297/301 co-relation queries the response was YES. [2023-11-30 00:38:33,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2995 conditions, 1509 events. 470/1509 cut-off events. For 297/301 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 10633 event pairs, 150 based on Foata normal form. 0/1309 useless extension candidates. Maximal degree in co-relation 2494. Up to 566 conditions per place. [2023-11-30 00:38:33,552 INFO L140 encePairwiseOnDemand]: 118/134 looper letters, 63 selfloop transitions, 12 changer transitions 0/124 dead transitions. [2023-11-30 00:38:33,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 124 transitions, 475 flow [2023-11-30 00:38:33,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 00:38:33,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 00:38:33,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 265 transitions. [2023-11-30 00:38:33,554 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6592039800995025 [2023-11-30 00:38:33,554 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 265 transitions. [2023-11-30 00:38:33,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 265 transitions. [2023-11-30 00:38:33,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 00:38:33,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 265 transitions. [2023-11-30 00:38:33,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:33,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:33,559 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:33,561 INFO L307 CegarLoopForPetriNet]: 132 programPoint places, -37 predicate places. [2023-11-30 00:38:33,561 INFO L500 AbstractCegarLoop]: Abstraction has has 95 places, 124 transitions, 475 flow [2023-11-30 00:38:33,563 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:33,564 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 00:38:33,564 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 00:38:33,564 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-30 00:38:33,567 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2023-11-30 00:38:33,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 00:38:33,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1512584896, now seen corresponding path program 1 times [2023-11-30 00:38:33,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 00:38:33,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510264868] [2023-11-30 00:38:33,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 00:38:33,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 00:38:33,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 00:38:33,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 00:38:33,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 00:38:33,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510264868] [2023-11-30 00:38:33,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510264868] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 00:38:33,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 00:38:33,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 00:38:33,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646915559] [2023-11-30 00:38:33,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 00:38:33,631 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 00:38:33,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 00:38:33,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 00:38:33,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 00:38:33,632 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 134 [2023-11-30 00:38:33,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 124 transitions, 475 flow. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:33,633 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 00:38:33,633 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 134 [2023-11-30 00:38:33,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 00:38:33,938 INFO L124 PetriNetUnfolderBase]: 598/1818 cut-off events. [2023-11-30 00:38:33,938 INFO L125 PetriNetUnfolderBase]: For 775/849 co-relation queries the response was YES. [2023-11-30 00:38:33,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4775 conditions, 1818 events. 598/1818 cut-off events. For 775/849 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 13202 event pairs, 205 based on Foata normal form. 8/1610 useless extension candidates. Maximal degree in co-relation 4498. Up to 1150 conditions per place. [2023-11-30 00:38:33,954 INFO L140 encePairwiseOnDemand]: 126/134 looper letters, 101 selfloop transitions, 11 changer transitions 0/157 dead transitions. [2023-11-30 00:38:33,955 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 157 transitions, 862 flow [2023-11-30 00:38:33,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 00:38:33,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 00:38:33,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 241 transitions. [2023-11-30 00:38:33,956 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.599502487562189 [2023-11-30 00:38:33,956 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 241 transitions. [2023-11-30 00:38:33,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 241 transitions. [2023-11-30 00:38:33,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 00:38:33,957 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 241 transitions. [2023-11-30 00:38:33,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:33,959 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:33,959 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:33,961 INFO L307 CegarLoopForPetriNet]: 132 programPoint places, -35 predicate places. [2023-11-30 00:38:33,961 INFO L500 AbstractCegarLoop]: Abstraction has has 97 places, 157 transitions, 862 flow [2023-11-30 00:38:33,965 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:33,965 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 00:38:33,965 INFO L232 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 00:38:33,965 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-30 00:38:33,966 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2023-11-30 00:38:33,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 00:38:33,966 INFO L85 PathProgramCache]: Analyzing trace with hash -617599175, now seen corresponding path program 1 times [2023-11-30 00:38:33,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 00:38:33,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674319083] [2023-11-30 00:38:33,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 00:38:33,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 00:38:33,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-30 00:38:33,996 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-30 00:38:34,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-30 00:38:34,008 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-30 00:38:34,008 INFO L372 BasicCegarLoop]: Counterexample is feasible [2023-11-30 00:38:34,008 INFO L810 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (45 of 46 remaining) [2023-11-30 00:38:34,008 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2023-11-30 00:38:34,008 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2023-11-30 00:38:34,009 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2023-11-30 00:38:34,009 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2023-11-30 00:38:34,009 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2023-11-30 00:38:34,009 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2023-11-30 00:38:34,009 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2023-11-30 00:38:34,009 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2023-11-30 00:38:34,009 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2023-11-30 00:38:34,009 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2023-11-30 00:38:34,009 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2023-11-30 00:38:34,010 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2023-11-30 00:38:34,010 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2023-11-30 00:38:34,010 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2023-11-30 00:38:34,010 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2023-11-30 00:38:34,010 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (29 of 46 remaining) [2023-11-30 00:38:34,010 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (28 of 46 remaining) [2023-11-30 00:38:34,010 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2023-11-30 00:38:34,010 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2023-11-30 00:38:34,010 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2023-11-30 00:38:34,010 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2023-11-30 00:38:34,010 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2023-11-30 00:38:34,011 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2023-11-30 00:38:34,011 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2023-11-30 00:38:34,011 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2023-11-30 00:38:34,011 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2023-11-30 00:38:34,011 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2023-11-30 00:38:34,011 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2023-11-30 00:38:34,011 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2023-11-30 00:38:34,011 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2023-11-30 00:38:34,011 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2023-11-30 00:38:34,012 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2023-11-30 00:38:34,012 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2023-11-30 00:38:34,012 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2023-11-30 00:38:34,012 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2023-11-30 00:38:34,012 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2023-11-30 00:38:34,012 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2023-11-30 00:38:34,012 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2023-11-30 00:38:34,012 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2023-11-30 00:38:34,012 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2023-11-30 00:38:34,013 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2023-11-30 00:38:34,013 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2023-11-30 00:38:34,013 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2023-11-30 00:38:34,013 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2023-11-30 00:38:34,013 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2023-11-30 00:38:34,013 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-30 00:38:34,013 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-30 00:38:34,014 WARN L227 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-30 00:38:34,014 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-30 00:38:34,045 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-30 00:38:34,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 185 places, 188 transitions, 394 flow [2023-11-30 00:38:34,072 INFO L124 PetriNetUnfolderBase]: 13/225 cut-off events. [2023-11-30 00:38:34,072 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-30 00:38:34,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 225 events. 13/225 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 735 event pairs, 0 based on Foata normal form. 0/163 useless extension candidates. Maximal degree in co-relation 172. Up to 8 conditions per place. [2023-11-30 00:38:34,074 INFO L82 GeneralOperation]: Start removeDead. Operand has 185 places, 188 transitions, 394 flow [2023-11-30 00:38:34,079 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 185 places, 188 transitions, 394 flow [2023-11-30 00:38:34,080 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 00:38:34,081 INFO L362 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6e7641c1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 00:38:34,082 INFO L363 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2023-11-30 00:38:34,084 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 00:38:34,084 INFO L124 PetriNetUnfolderBase]: 2/31 cut-off events. [2023-11-30 00:38:34,084 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 00:38:34,084 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 00:38:34,086 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 00:38:34,086 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-30 00:38:34,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 00:38:34,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1209940748, now seen corresponding path program 1 times [2023-11-30 00:38:34,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 00:38:34,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818725490] [2023-11-30 00:38:34,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 00:38:34,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 00:38:34,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 00:38:34,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 00:38:34,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 00:38:34,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818725490] [2023-11-30 00:38:34,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818725490] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 00:38:34,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 00:38:34,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-30 00:38:34,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643253717] [2023-11-30 00:38:34,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 00:38:34,111 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-30 00:38:34,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 00:38:34,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-30 00:38:34,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-30 00:38:34,112 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 188 [2023-11-30 00:38:34,113 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 188 transitions, 394 flow. Second operand has 2 states, 2 states have (on average 118.0) internal successors, (236), 2 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:34,113 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 00:38:34,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 188 [2023-11-30 00:38:34,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 00:38:34,473 INFO L124 PetriNetUnfolderBase]: 979/2546 cut-off events. [2023-11-30 00:38:34,474 INFO L125 PetriNetUnfolderBase]: For 412/412 co-relation queries the response was YES. [2023-11-30 00:38:34,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4369 conditions, 2546 events. 979/2546 cut-off events. For 412/412 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 20512 event pairs, 952 based on Foata normal form. 1160/3432 useless extension candidates. Maximal degree in co-relation 3498. Up to 1537 conditions per place. [2023-11-30 00:38:34,503 INFO L140 encePairwiseOnDemand]: 144/188 looper letters, 24 selfloop transitions, 0 changer transitions 0/124 dead transitions. [2023-11-30 00:38:34,503 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 124 transitions, 314 flow [2023-11-30 00:38:34,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-30 00:38:34,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-30 00:38:34,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 302 transitions. [2023-11-30 00:38:34,505 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8031914893617021 [2023-11-30 00:38:34,505 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 302 transitions. [2023-11-30 00:38:34,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 302 transitions. [2023-11-30 00:38:34,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 00:38:34,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 302 transitions. [2023-11-30 00:38:34,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 151.0) internal successors, (302), 2 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:34,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:34,508 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:34,509 INFO L307 CegarLoopForPetriNet]: 185 programPoint places, -56 predicate places. [2023-11-30 00:38:34,509 INFO L500 AbstractCegarLoop]: Abstraction has has 129 places, 124 transitions, 314 flow [2023-11-30 00:38:34,509 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 118.0) internal successors, (236), 2 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:34,510 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 00:38:34,510 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 00:38:34,510 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-30 00:38:34,510 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-30 00:38:34,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 00:38:34,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1183052017, now seen corresponding path program 1 times [2023-11-30 00:38:34,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 00:38:34,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79635899] [2023-11-30 00:38:34,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 00:38:34,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 00:38:34,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 00:38:34,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 00:38:34,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 00:38:34,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79635899] [2023-11-30 00:38:34,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79635899] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 00:38:34,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 00:38:34,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 00:38:34,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670629741] [2023-11-30 00:38:34,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 00:38:34,560 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 00:38:34,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 00:38:34,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 00:38:34,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 00:38:34,562 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 188 [2023-11-30 00:38:34,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 124 transitions, 314 flow. Second operand has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:34,563 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 00:38:34,563 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 188 [2023-11-30 00:38:34,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 00:38:39,562 INFO L124 PetriNetUnfolderBase]: 23138/46849 cut-off events. [2023-11-30 00:38:39,562 INFO L125 PetriNetUnfolderBase]: For 12041/12063 co-relation queries the response was YES. [2023-11-30 00:38:39,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99326 conditions, 46849 events. 23138/46849 cut-off events. For 12041/12063 co-relation queries the response was YES. Maximal size of possible extension queue 1368. Compared 479447 event pairs, 8227 based on Foata normal form. 0/39865 useless extension candidates. Maximal degree in co-relation 83288. Up to 20004 conditions per place. [2023-11-30 00:38:40,120 INFO L140 encePairwiseOnDemand]: 164/188 looper letters, 95 selfloop transitions, 18 changer transitions 0/177 dead transitions. [2023-11-30 00:38:40,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 177 transitions, 704 flow [2023-11-30 00:38:40,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 00:38:40,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 00:38:40,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 362 transitions. [2023-11-30 00:38:40,122 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6418439716312057 [2023-11-30 00:38:40,122 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 362 transitions. [2023-11-30 00:38:40,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 362 transitions. [2023-11-30 00:38:40,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 00:38:40,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 362 transitions. [2023-11-30 00:38:40,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:40,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:40,125 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:40,126 INFO L307 CegarLoopForPetriNet]: 185 programPoint places, -54 predicate places. [2023-11-30 00:38:40,126 INFO L500 AbstractCegarLoop]: Abstraction has has 131 places, 177 transitions, 704 flow [2023-11-30 00:38:40,126 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:40,126 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 00:38:40,126 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 00:38:40,126 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-30 00:38:40,126 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-30 00:38:40,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 00:38:40,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1281095055, now seen corresponding path program 1 times [2023-11-30 00:38:40,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 00:38:40,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622065694] [2023-11-30 00:38:40,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 00:38:40,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 00:38:40,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 00:38:40,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 00:38:40,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 00:38:40,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622065694] [2023-11-30 00:38:40,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622065694] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 00:38:40,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 00:38:40,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 00:38:40,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978056154] [2023-11-30 00:38:40,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 00:38:40,161 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 00:38:40,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 00:38:40,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 00:38:40,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 00:38:40,162 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 188 [2023-11-30 00:38:40,162 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 177 transitions, 704 flow. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:40,162 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 00:38:40,162 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 188 [2023-11-30 00:38:40,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 00:38:45,320 INFO L124 PetriNetUnfolderBase]: 29819/59729 cut-off events. [2023-11-30 00:38:45,320 INFO L125 PetriNetUnfolderBase]: For 25008/27659 co-relation queries the response was YES. [2023-11-30 00:38:45,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168526 conditions, 59729 events. 29819/59729 cut-off events. For 25008/27659 co-relation queries the response was YES. Maximal size of possible extension queue 1588. Compared 623766 event pairs, 10317 based on Foata normal form. 223/51727 useless extension candidates. Maximal degree in co-relation 40858. Up to 42149 conditions per place. [2023-11-30 00:38:46,010 INFO L140 encePairwiseOnDemand]: 176/188 looper letters, 174 selfloop transitions, 21 changer transitions 0/255 dead transitions. [2023-11-30 00:38:46,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 255 transitions, 1485 flow [2023-11-30 00:38:46,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 00:38:46,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 00:38:46,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 338 transitions. [2023-11-30 00:38:46,012 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.599290780141844 [2023-11-30 00:38:46,012 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 338 transitions. [2023-11-30 00:38:46,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 338 transitions. [2023-11-30 00:38:46,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 00:38:46,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 338 transitions. [2023-11-30 00:38:46,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:46,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:46,015 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:46,017 INFO L307 CegarLoopForPetriNet]: 185 programPoint places, -52 predicate places. [2023-11-30 00:38:46,017 INFO L500 AbstractCegarLoop]: Abstraction has has 133 places, 255 transitions, 1485 flow [2023-11-30 00:38:46,017 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:46,017 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 00:38:46,018 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 00:38:46,018 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-30 00:38:46,018 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-30 00:38:46,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 00:38:46,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1692049452, now seen corresponding path program 1 times [2023-11-30 00:38:46,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 00:38:46,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848909431] [2023-11-30 00:38:46,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 00:38:46,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 00:38:46,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 00:38:46,056 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-30 00:38:46,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 00:38:46,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848909431] [2023-11-30 00:38:46,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848909431] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 00:38:46,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 00:38:46,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 00:38:46,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321314808] [2023-11-30 00:38:46,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 00:38:46,058 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 00:38:46,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 00:38:46,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 00:38:46,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 00:38:46,059 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 188 [2023-11-30 00:38:46,059 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 255 transitions, 1485 flow. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:46,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 00:38:46,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 188 [2023-11-30 00:38:46,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 00:38:52,909 INFO L124 PetriNetUnfolderBase]: 37804/73970 cut-off events. [2023-11-30 00:38:52,909 INFO L125 PetriNetUnfolderBase]: For 58047/65494 co-relation queries the response was YES. [2023-11-30 00:38:53,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 257822 conditions, 73970 events. 37804/73970 cut-off events. For 58047/65494 co-relation queries the response was YES. Maximal size of possible extension queue 1848. Compared 774400 event pairs, 12476 based on Foata normal form. 427/65095 useless extension candidates. Maximal degree in co-relation 216304. Up to 49963 conditions per place. [2023-11-30 00:38:53,892 INFO L140 encePairwiseOnDemand]: 176/188 looper letters, 274 selfloop transitions, 31 changer transitions 0/366 dead transitions. [2023-11-30 00:38:53,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 366 transitions, 2866 flow [2023-11-30 00:38:53,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 00:38:53,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 00:38:53,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 337 transitions. [2023-11-30 00:38:53,894 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5975177304964538 [2023-11-30 00:38:53,894 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 337 transitions. [2023-11-30 00:38:53,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 337 transitions. [2023-11-30 00:38:53,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 00:38:53,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 337 transitions. [2023-11-30 00:38:53,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:53,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:53,896 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:53,897 INFO L307 CegarLoopForPetriNet]: 185 programPoint places, -50 predicate places. [2023-11-30 00:38:53,897 INFO L500 AbstractCegarLoop]: Abstraction has has 135 places, 366 transitions, 2866 flow [2023-11-30 00:38:53,897 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:53,897 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 00:38:53,897 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 00:38:53,897 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-30 00:38:53,898 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-30 00:38:53,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 00:38:53,898 INFO L85 PathProgramCache]: Analyzing trace with hash 27448063, now seen corresponding path program 1 times [2023-11-30 00:38:53,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 00:38:53,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874786794] [2023-11-30 00:38:53,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 00:38:53,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 00:38:53,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 00:38:53,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 00:38:53,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 00:38:53,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874786794] [2023-11-30 00:38:53,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874786794] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 00:38:53,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 00:38:53,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 00:38:53,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670704419] [2023-11-30 00:38:53,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 00:38:53,927 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 00:38:53,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 00:38:53,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 00:38:53,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 00:38:53,928 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 188 [2023-11-30 00:38:53,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 366 transitions, 2866 flow. Second operand has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:38:53,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 00:38:53,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 188 [2023-11-30 00:38:53,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 00:39:02,813 INFO L124 PetriNetUnfolderBase]: 42015/81188 cut-off events. [2023-11-30 00:39:02,813 INFO L125 PetriNetUnfolderBase]: For 103767/120178 co-relation queries the response was YES. [2023-11-30 00:39:03,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 337048 conditions, 81188 events. 42015/81188 cut-off events. For 103767/120178 co-relation queries the response was YES. Maximal size of possible extension queue 1953. Compared 847485 event pairs, 13484 based on Foata normal form. 661/72101 useless extension candidates. Maximal degree in co-relation 101232. Up to 53758 conditions per place. [2023-11-30 00:39:03,759 INFO L140 encePairwiseOnDemand]: 176/188 looper letters, 385 selfloop transitions, 31 changer transitions 0/478 dead transitions. [2023-11-30 00:39:03,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 478 transitions, 4704 flow [2023-11-30 00:39:03,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 00:39:03,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 00:39:03,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 338 transitions. [2023-11-30 00:39:03,760 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.599290780141844 [2023-11-30 00:39:03,760 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 338 transitions. [2023-11-30 00:39:03,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 338 transitions. [2023-11-30 00:39:03,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 00:39:03,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 338 transitions. [2023-11-30 00:39:03,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:39:03,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:39:03,763 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:39:03,764 INFO L307 CegarLoopForPetriNet]: 185 programPoint places, -48 predicate places. [2023-11-30 00:39:03,764 INFO L500 AbstractCegarLoop]: Abstraction has has 137 places, 478 transitions, 4704 flow [2023-11-30 00:39:03,764 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:39:03,764 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 00:39:03,764 INFO L232 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 00:39:03,764 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-30 00:39:03,764 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-30 00:39:03,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 00:39:03,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1618900292, now seen corresponding path program 1 times [2023-11-30 00:39:03,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 00:39:03,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722289505] [2023-11-30 00:39:03,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 00:39:03,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 00:39:03,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-30 00:39:03,788 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-30 00:39:03,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-30 00:39:03,800 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-30 00:39:03,801 INFO L372 BasicCegarLoop]: Counterexample is feasible [2023-11-30 00:39:03,801 INFO L810 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (60 of 61 remaining) [2023-11-30 00:39:03,801 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (59 of 61 remaining) [2023-11-30 00:39:03,801 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (58 of 61 remaining) [2023-11-30 00:39:03,801 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (57 of 61 remaining) [2023-11-30 00:39:03,801 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (56 of 61 remaining) [2023-11-30 00:39:03,801 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (55 of 61 remaining) [2023-11-30 00:39:03,802 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (54 of 61 remaining) [2023-11-30 00:39:03,802 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (53 of 61 remaining) [2023-11-30 00:39:03,802 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (52 of 61 remaining) [2023-11-30 00:39:03,802 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (51 of 61 remaining) [2023-11-30 00:39:03,802 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (50 of 61 remaining) [2023-11-30 00:39:03,802 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (49 of 61 remaining) [2023-11-30 00:39:03,802 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (48 of 61 remaining) [2023-11-30 00:39:03,802 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (47 of 61 remaining) [2023-11-30 00:39:03,802 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (46 of 61 remaining) [2023-11-30 00:39:03,803 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (45 of 61 remaining) [2023-11-30 00:39:03,803 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (44 of 61 remaining) [2023-11-30 00:39:03,803 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (43 of 61 remaining) [2023-11-30 00:39:03,803 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (42 of 61 remaining) [2023-11-30 00:39:03,803 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (41 of 61 remaining) [2023-11-30 00:39:03,803 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (40 of 61 remaining) [2023-11-30 00:39:03,803 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (39 of 61 remaining) [2023-11-30 00:39:03,803 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (38 of 61 remaining) [2023-11-30 00:39:03,803 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (37 of 61 remaining) [2023-11-30 00:39:03,804 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (36 of 61 remaining) [2023-11-30 00:39:03,804 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (35 of 61 remaining) [2023-11-30 00:39:03,804 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (34 of 61 remaining) [2023-11-30 00:39:03,804 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (33 of 61 remaining) [2023-11-30 00:39:03,804 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (32 of 61 remaining) [2023-11-30 00:39:03,804 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (31 of 61 remaining) [2023-11-30 00:39:03,804 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (30 of 61 remaining) [2023-11-30 00:39:03,804 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (29 of 61 remaining) [2023-11-30 00:39:03,805 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (28 of 61 remaining) [2023-11-30 00:39:03,805 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 61 remaining) [2023-11-30 00:39:03,805 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 61 remaining) [2023-11-30 00:39:03,805 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 61 remaining) [2023-11-30 00:39:03,805 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (24 of 61 remaining) [2023-11-30 00:39:03,805 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (23 of 61 remaining) [2023-11-30 00:39:03,805 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (22 of 61 remaining) [2023-11-30 00:39:03,805 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (21 of 61 remaining) [2023-11-30 00:39:03,805 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (20 of 61 remaining) [2023-11-30 00:39:03,806 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (19 of 61 remaining) [2023-11-30 00:39:03,806 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (18 of 61 remaining) [2023-11-30 00:39:03,806 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (17 of 61 remaining) [2023-11-30 00:39:03,806 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (16 of 61 remaining) [2023-11-30 00:39:03,806 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (15 of 61 remaining) [2023-11-30 00:39:03,806 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (14 of 61 remaining) [2023-11-30 00:39:03,806 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 61 remaining) [2023-11-30 00:39:03,806 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (12 of 61 remaining) [2023-11-30 00:39:03,807 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (11 of 61 remaining) [2023-11-30 00:39:03,807 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 61 remaining) [2023-11-30 00:39:03,807 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 61 remaining) [2023-11-30 00:39:03,807 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (8 of 61 remaining) [2023-11-30 00:39:03,807 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (7 of 61 remaining) [2023-11-30 00:39:03,807 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (6 of 61 remaining) [2023-11-30 00:39:03,807 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (5 of 61 remaining) [2023-11-30 00:39:03,807 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 61 remaining) [2023-11-30 00:39:03,807 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 61 remaining) [2023-11-30 00:39:03,808 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (2 of 61 remaining) [2023-11-30 00:39:03,808 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (1 of 61 remaining) [2023-11-30 00:39:03,808 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (0 of 61 remaining) [2023-11-30 00:39:03,808 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-30 00:39:03,808 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-30 00:39:03,809 WARN L227 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-30 00:39:03,809 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-11-30 00:39:03,854 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-30 00:39:03,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 238 places, 242 transitions, 512 flow [2023-11-30 00:39:03,895 INFO L124 PetriNetUnfolderBase]: 17/292 cut-off events. [2023-11-30 00:39:03,895 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-30 00:39:03,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 311 conditions, 292 events. 17/292 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1090 event pairs, 0 based on Foata normal form. 0/210 useless extension candidates. Maximal degree in co-relation 233. Up to 10 conditions per place. [2023-11-30 00:39:03,898 INFO L82 GeneralOperation]: Start removeDead. Operand has 238 places, 242 transitions, 512 flow [2023-11-30 00:39:03,902 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 238 places, 242 transitions, 512 flow [2023-11-30 00:39:03,903 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 00:39:03,905 INFO L362 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6e7641c1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 00:39:03,905 INFO L363 AbstractCegarLoop]: Starting to check reachability of 76 error locations. [2023-11-30 00:39:03,906 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 00:39:03,906 INFO L124 PetriNetUnfolderBase]: 2/31 cut-off events. [2023-11-30 00:39:03,906 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 00:39:03,907 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 00:39:03,907 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 00:39:03,907 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 72 more)] === [2023-11-30 00:39:03,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 00:39:03,907 INFO L85 PathProgramCache]: Analyzing trace with hash -519504180, now seen corresponding path program 1 times [2023-11-30 00:39:03,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 00:39:03,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297109383] [2023-11-30 00:39:03,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 00:39:03,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 00:39:03,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 00:39:03,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 00:39:03,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 00:39:03,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297109383] [2023-11-30 00:39:03,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297109383] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 00:39:03,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 00:39:04,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-30 00:39:04,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484697650] [2023-11-30 00:39:04,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 00:39:04,152 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-30 00:39:04,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 00:39:04,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-30 00:39:04,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-30 00:39:04,153 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 242 [2023-11-30 00:39:04,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 242 transitions, 512 flow. Second operand has 2 states, 2 states have (on average 149.0) internal successors, (298), 2 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:39:04,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 00:39:04,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 242 [2023-11-30 00:39:04,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 00:39:06,526 INFO L124 PetriNetUnfolderBase]: 11816/22152 cut-off events. [2023-11-30 00:39:06,527 INFO L125 PetriNetUnfolderBase]: For 5535/5535 co-relation queries the response was YES. [2023-11-30 00:39:06,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41384 conditions, 22152 events. 11816/22152 cut-off events. For 5535/5535 co-relation queries the response was YES. Maximal size of possible extension queue 1221. Compared 211740 event pairs, 11704 based on Foata normal form. 10852/31112 useless extension candidates. Maximal degree in co-relation 33436. Up to 16385 conditions per place. [2023-11-30 00:39:06,674 INFO L140 encePairwiseOnDemand]: 184/242 looper letters, 32 selfloop transitions, 0 changer transitions 0/159 dead transitions. [2023-11-30 00:39:06,675 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 159 transitions, 410 flow [2023-11-30 00:39:06,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-30 00:39:06,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-30 00:39:06,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 386 transitions. [2023-11-30 00:39:06,676 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7975206611570248 [2023-11-30 00:39:06,676 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 386 transitions. [2023-11-30 00:39:06,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 386 transitions. [2023-11-30 00:39:06,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 00:39:06,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 386 transitions. [2023-11-30 00:39:06,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 193.0) internal successors, (386), 2 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:39:06,678 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 242.0) internal successors, (726), 3 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:39:06,678 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 242.0) internal successors, (726), 3 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:39:06,679 INFO L307 CegarLoopForPetriNet]: 238 programPoint places, -73 predicate places. [2023-11-30 00:39:06,679 INFO L500 AbstractCegarLoop]: Abstraction has has 165 places, 159 transitions, 410 flow [2023-11-30 00:39:06,679 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 149.0) internal successors, (298), 2 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:39:06,679 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 00:39:06,679 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 00:39:06,679 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-30 00:39:06,679 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 72 more)] === [2023-11-30 00:39:06,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 00:39:06,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1027274833, now seen corresponding path program 1 times [2023-11-30 00:39:06,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 00:39:06,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280070559] [2023-11-30 00:39:06,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 00:39:06,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 00:39:06,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 00:39:06,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 00:39:06,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 00:39:06,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280070559] [2023-11-30 00:39:06,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280070559] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 00:39:06,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 00:39:06,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 00:39:06,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316289773] [2023-11-30 00:39:06,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 00:39:06,700 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 00:39:06,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 00:39:06,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 00:39:06,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 00:39:06,701 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 242 [2023-11-30 00:39:06,702 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 159 transitions, 410 flow. Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:39:06,702 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 00:39:06,702 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 242 [2023-11-30 00:39:06,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand