/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/pthread-ext/40_barrier_vf-b.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-24 18:36:45,754 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-24 18:36:45,814 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-VariableLbe.epf [2023-08-24 18:36:45,817 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-24 18:36:45,818 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-24 18:36:45,831 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-24 18:36:45,831 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-24 18:36:45,831 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-24 18:36:45,832 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-24 18:36:45,832 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-24 18:36:45,832 INFO L153 SettingsManager]: * Use SBE=true [2023-08-24 18:36:45,833 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-24 18:36:45,833 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-24 18:36:45,833 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-24 18:36:45,833 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-24 18:36:45,834 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-24 18:36:45,834 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-24 18:36:45,834 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-24 18:36:45,834 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-24 18:36:45,834 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-24 18:36:45,835 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-24 18:36:45,835 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-24 18:36:45,835 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-24 18:36:45,835 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-24 18:36:45,836 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-24 18:36:45,836 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-24 18:36:45,836 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-24 18:36:45,836 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 18:36:45,837 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-24 18:36:45,837 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-24 18:36:45,837 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-24 18:36:45,837 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-24 18:36:45,838 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-24 18:36:45,838 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-24 18:36:45,838 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-24 18:36:45,838 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-24 18:36:46,058 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-24 18:36:46,072 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-24 18:36:46,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-24 18:36:46,074 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-24 18:36:46,076 INFO L274 PluginConnector]: CDTParser initialized [2023-08-24 18:36:46,079 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/40_barrier_vf-b.i [2023-08-24 18:36:47,043 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-24 18:36:47,271 INFO L384 CDTParser]: Found 1 translation units. [2023-08-24 18:36:47,271 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/40_barrier_vf-b.i [2023-08-24 18:36:47,282 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb1156cde/79198dbf4bb84320917ca09d0b19301b/FLAG7d8f314da [2023-08-24 18:36:47,295 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb1156cde/79198dbf4bb84320917ca09d0b19301b [2023-08-24 18:36:47,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-24 18:36:47,303 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-24 18:36:47,304 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-24 18:36:47,304 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-24 18:36:47,305 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-24 18:36:47,306 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 06:36:47" (1/1) ... [2023-08-24 18:36:47,307 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5925247e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:36:47, skipping insertion in model container [2023-08-24 18:36:47,307 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 06:36:47" (1/1) ... [2023-08-24 18:36:47,343 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-24 18:36:47,599 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 18:36:47,608 INFO L201 MainTranslator]: Completed pre-run [2023-08-24 18:36:47,633 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [253] [2023-08-24 18:36:47,634 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [253] [2023-08-24 18:36:47,648 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 18:36:47,675 INFO L206 MainTranslator]: Completed translation [2023-08-24 18:36:47,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:36:47 WrapperNode [2023-08-24 18:36:47,677 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-24 18:36:47,678 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-24 18:36:47,678 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-24 18:36:47,678 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-24 18:36:47,682 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:36:47" (1/1) ... [2023-08-24 18:36:47,705 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:36:47" (1/1) ... [2023-08-24 18:36:47,727 INFO L138 Inliner]: procedures = 170, calls = 19, calls flagged for inlining = 11, calls inlined = 13, statements flattened = 121 [2023-08-24 18:36:47,727 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-24 18:36:47,728 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-24 18:36:47,728 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-24 18:36:47,728 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-24 18:36:47,733 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:36:47" (1/1) ... [2023-08-24 18:36:47,734 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:36:47" (1/1) ... [2023-08-24 18:36:47,740 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:36:47" (1/1) ... [2023-08-24 18:36:47,740 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:36:47" (1/1) ... [2023-08-24 18:36:47,743 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:36:47" (1/1) ... [2023-08-24 18:36:47,745 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:36:47" (1/1) ... [2023-08-24 18:36:47,745 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:36:47" (1/1) ... [2023-08-24 18:36:47,746 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:36:47" (1/1) ... [2023-08-24 18:36:47,748 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-24 18:36:47,748 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-24 18:36:47,748 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-24 18:36:47,748 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-24 18:36:47,757 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:36:47" (1/1) ... [2023-08-24 18:36:47,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 18:36:47,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 18:36:47,777 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) [2023-08-24 18:36:47,795 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 [2023-08-24 18:36:47,804 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-24 18:36:47,804 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-24 18:36:47,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-24 18:36:47,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-24 18:36:47,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-24 18:36:47,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-24 18:36:47,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-24 18:36:47,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-24 18:36:47,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-24 18:36:47,807 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-24 18:36:47,916 INFO L236 CfgBuilder]: Building ICFG [2023-08-24 18:36:47,918 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-24 18:36:48,057 INFO L277 CfgBuilder]: Performing block encoding [2023-08-24 18:36:48,143 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-24 18:36:48,143 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-24 18:36:48,144 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 06:36:48 BoogieIcfgContainer [2023-08-24 18:36:48,144 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-24 18:36:48,146 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-24 18:36:48,146 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-24 18:36:48,148 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-24 18:36:48,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.08 06:36:47" (1/3) ... [2023-08-24 18:36:48,148 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f975e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 06:36:48, skipping insertion in model container [2023-08-24 18:36:48,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:36:47" (2/3) ... [2023-08-24 18:36:48,149 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f975e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 06:36:48, skipping insertion in model container [2023-08-24 18:36:48,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 06:36:48" (3/3) ... [2023-08-24 18:36:48,150 INFO L112 eAbstractionObserver]: Analyzing ICFG 40_barrier_vf-b.i [2023-08-24 18:36:48,160 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-24 18:36:48,160 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-08-24 18:36:48,160 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-24 18:36:48,199 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 18:36:48,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 95 transitions, 195 flow [2023-08-24 18:36:48,248 INFO L124 PetriNetUnfolderBase]: 6/105 cut-off events. [2023-08-24 18:36:48,248 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 18:36:48,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 105 events. 6/105 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 142 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 80. Up to 4 conditions per place. [2023-08-24 18:36:48,252 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 95 transitions, 195 flow [2023-08-24 18:36:48,255 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 95 transitions, 195 flow [2023-08-24 18:36:48,257 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 18:36:48,264 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 95 transitions, 195 flow [2023-08-24 18:36:48,270 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 95 transitions, 195 flow [2023-08-24 18:36:48,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 95 transitions, 195 flow [2023-08-24 18:36:48,319 INFO L124 PetriNetUnfolderBase]: 6/105 cut-off events. [2023-08-24 18:36:48,319 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 18:36:48,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 105 events. 6/105 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 142 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 80. Up to 4 conditions per place. [2023-08-24 18:36:48,320 INFO L119 LiptonReduction]: Number of co-enabled transitions 1768 [2023-08-24 18:36:50,544 INFO L134 LiptonReduction]: Checked pairs total: 1778 [2023-08-24 18:36:50,545 INFO L136 LiptonReduction]: Total number of compositions: 140 [2023-08-24 18:36:50,553 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-24 18:36:50,559 INFO L357 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@4d3ad113, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 18:36:50,560 INFO L358 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2023-08-24 18:36:50,566 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 18:36:50,567 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-08-24 18:36:50,567 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 18:36:50,567 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:36:50,567 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-24 18:36:50,568 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2023-08-24 18:36:50,571 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:36:50,571 INFO L85 PathProgramCache]: Analyzing trace with hash 17345433, now seen corresponding path program 1 times [2023-08-24 18:36:50,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:36:50,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32743578] [2023-08-24 18:36:50,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:36:50,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:36:50,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:36:50,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:36:50,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:36:50,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32743578] [2023-08-24 18:36:50,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32743578] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:36:50,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:36:50,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-24 18:36:50,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115309851] [2023-08-24 18:36:50,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:36:50,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-24 18:36:50,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:36:50,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-24 18:36:50,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-24 18:36:50,732 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 235 [2023-08-24 18:36:50,734 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 23 transitions, 51 flow. Second operand has 2 states, 2 states have (on average 77.0) internal successors, (154), 2 states have internal predecessors, (154), 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) [2023-08-24 18:36:50,734 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:36:50,734 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 235 [2023-08-24 18:36:50,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:36:50,755 INFO L124 PetriNetUnfolderBase]: 2/11 cut-off events. [2023-08-24 18:36:50,755 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 18:36:50,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 11 events. 2/11 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 9 event pairs, 2 based on Foata normal form. 0/11 useless extension candidates. Maximal degree in co-relation 14. Up to 11 conditions per place. [2023-08-24 18:36:50,756 INFO L140 encePairwiseOnDemand]: 218/235 looper letters, 5 selfloop transitions, 0 changer transitions 0/6 dead transitions. [2023-08-24 18:36:50,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 10 places, 6 transitions, 27 flow [2023-08-24 18:36:50,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-24 18:36:50,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-24 18:36:50,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 172 transitions. [2023-08-24 18:36:50,765 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3659574468085106 [2023-08-24 18:36:50,765 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 172 transitions. [2023-08-24 18:36:50,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 172 transitions. [2023-08-24 18:36:50,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:36:50,767 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 172 transitions. [2023-08-24 18:36:50,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 86.0) internal successors, (172), 2 states have internal predecessors, (172), 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) [2023-08-24 18:36:50,771 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 235.0) internal successors, (705), 3 states have internal predecessors, (705), 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) [2023-08-24 18:36:50,772 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 235.0) internal successors, (705), 3 states have internal predecessors, (705), 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) [2023-08-24 18:36:50,773 INFO L175 Difference]: Start difference. First operand has 26 places, 23 transitions, 51 flow. Second operand 2 states and 172 transitions. [2023-08-24 18:36:50,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 10 places, 6 transitions, 27 flow [2023-08-24 18:36:50,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 6 transitions, 27 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-24 18:36:50,775 INFO L231 Difference]: Finished difference. Result has 10 places, 6 transitions, 17 flow [2023-08-24 18:36:50,776 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=17, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=17, PETRI_PLACES=10, PETRI_TRANSITIONS=6} [2023-08-24 18:36:50,778 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -16 predicate places. [2023-08-24 18:36:50,778 INFO L495 AbstractCegarLoop]: Abstraction has has 10 places, 6 transitions, 17 flow [2023-08-24 18:36:50,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 77.0) internal successors, (154), 2 states have internal predecessors, (154), 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) [2023-08-24 18:36:50,779 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:36:50,779 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-24 18:36:50,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-24 18:36:50,779 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err15ASSERT_VIOLATIONASSERT === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2023-08-24 18:36:50,779 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:36:50,780 INFO L85 PathProgramCache]: Analyzing trace with hash 17345503, now seen corresponding path program 1 times [2023-08-24 18:36:50,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:36:50,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515714818] [2023-08-24 18:36:50,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:36:50,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:36:50,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:36:50,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:36:50,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:36:50,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515714818] [2023-08-24 18:36:50,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515714818] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:36:50,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:36:50,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-24 18:36:50,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360989014] [2023-08-24 18:36:50,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:36:50,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:36:50,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:36:50,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:36:50,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:36:50,957 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 235 [2023-08-24 18:36:50,957 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 10 places, 6 transitions, 17 flow. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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) [2023-08-24 18:36:50,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:36:50,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 235 [2023-08-24 18:36:50,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:36:50,964 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-08-24 18:36:50,964 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 18:36:50,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18 conditions, 6 events. 0/6 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 3/9 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2023-08-24 18:36:50,965 INFO L140 encePairwiseOnDemand]: 233/235 looper letters, 3 selfloop transitions, 1 changer transitions 0/5 dead transitions. [2023-08-24 18:36:50,965 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 11 places, 5 transitions, 23 flow [2023-08-24 18:36:50,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:36:50,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:36:50,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 200 transitions. [2023-08-24 18:36:50,969 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.28368794326241137 [2023-08-24 18:36:50,969 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 200 transitions. [2023-08-24 18:36:50,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 200 transitions. [2023-08-24 18:36:50,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:36:50,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 200 transitions. [2023-08-24 18:36:50,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 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) [2023-08-24 18:36:50,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 235.0) internal successors, (940), 4 states have internal predecessors, (940), 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) [2023-08-24 18:36:50,974 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 235.0) internal successors, (940), 4 states have internal predecessors, (940), 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) [2023-08-24 18:36:50,975 INFO L175 Difference]: Start difference. First operand has 10 places, 6 transitions, 17 flow. Second operand 3 states and 200 transitions. [2023-08-24 18:36:50,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 11 places, 5 transitions, 23 flow [2023-08-24 18:36:50,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 11 places, 5 transitions, 23 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-24 18:36:50,975 INFO L231 Difference]: Finished difference. Result has 11 places, 5 transitions, 17 flow [2023-08-24 18:36:50,975 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=15, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=5, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=17, PETRI_PLACES=11, PETRI_TRANSITIONS=5} [2023-08-24 18:36:50,976 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -15 predicate places. [2023-08-24 18:36:50,976 INFO L495 AbstractCegarLoop]: Abstraction has has 11 places, 5 transitions, 17 flow [2023-08-24 18:36:50,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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) [2023-08-24 18:36:50,977 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:36:50,977 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-24 18:36:50,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-24 18:36:50,977 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2023-08-24 18:36:50,979 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:36:50,979 INFO L85 PathProgramCache]: Analyzing trace with hash -510927080, now seen corresponding path program 1 times [2023-08-24 18:36:50,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:36:50,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850073450] [2023-08-24 18:36:50,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:36:50,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:36:50,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 18:36:50,997 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 18:36:51,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 18:36:51,012 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 18:36:51,012 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 18:36:51,013 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2023-08-24 18:36:51,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2023-08-24 18:36:51,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2023-08-24 18:36:51,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2023-08-24 18:36:51,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2023-08-24 18:36:51,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2023-08-24 18:36:51,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (26 of 33 remaining) [2023-08-24 18:36:51,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2023-08-24 18:36:51,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2023-08-24 18:36:51,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2023-08-24 18:36:51,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2023-08-24 18:36:51,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2023-08-24 18:36:51,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2023-08-24 18:36:51,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2023-08-24 18:36:51,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2023-08-24 18:36:51,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2023-08-24 18:36:51,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONASSERT (16 of 33 remaining) [2023-08-24 18:36:51,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2023-08-24 18:36:51,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2023-08-24 18:36:51,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2023-08-24 18:36:51,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2023-08-24 18:36:51,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2023-08-24 18:36:51,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2023-08-24 18:36:51,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2023-08-24 18:36:51,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2023-08-24 18:36:51,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2023-08-24 18:36:51,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2023-08-24 18:36:51,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining) [2023-08-24 18:36:51,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2023-08-24 18:36:51,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2023-08-24 18:36:51,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2023-08-24 18:36:51,019 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2023-08-24 18:36:51,019 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONASSERT (0 of 33 remaining) [2023-08-24 18:36:51,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-24 18:36:51,019 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-24 18:36:51,021 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 18:36:51,021 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-24 18:36:51,038 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 18:36:51,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 164 transitions, 340 flow [2023-08-24 18:36:51,072 INFO L124 PetriNetUnfolderBase]: 11/186 cut-off events. [2023-08-24 18:36:51,073 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 18:36:51,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 186 events. 11/186 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 475 event pairs, 0 based on Foata normal form. 0/140 useless extension candidates. Maximal degree in co-relation 148. Up to 6 conditions per place. [2023-08-24 18:36:51,076 INFO L82 GeneralOperation]: Start removeDead. Operand has 160 places, 164 transitions, 340 flow [2023-08-24 18:36:51,078 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 160 places, 164 transitions, 340 flow [2023-08-24 18:36:51,078 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 18:36:51,079 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 160 places, 164 transitions, 340 flow [2023-08-24 18:36:51,079 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 160 places, 164 transitions, 340 flow [2023-08-24 18:36:51,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 164 transitions, 340 flow [2023-08-24 18:36:51,110 INFO L124 PetriNetUnfolderBase]: 11/186 cut-off events. [2023-08-24 18:36:51,110 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 18:36:51,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 186 events. 11/186 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 475 event pairs, 0 based on Foata normal form. 0/140 useless extension candidates. Maximal degree in co-relation 148. Up to 6 conditions per place. [2023-08-24 18:36:51,116 INFO L119 LiptonReduction]: Number of co-enabled transitions 12920 [2023-08-24 18:36:52,099 INFO L134 LiptonReduction]: Checked pairs total: 50787 [2023-08-24 18:36:52,100 INFO L136 LiptonReduction]: Total number of compositions: 109 [2023-08-24 18:36:52,101 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-24 18:36:52,102 INFO L357 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@4d3ad113, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 18:36:52,102 INFO L358 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2023-08-24 18:36:52,103 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 18:36:52,103 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-08-24 18:36:52,103 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 18:36:52,103 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:36:52,103 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-24 18:36:52,103 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-08-24 18:36:52,103 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:36:52,103 INFO L85 PathProgramCache]: Analyzing trace with hash 28955635, now seen corresponding path program 1 times [2023-08-24 18:36:52,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:36:52,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089116039] [2023-08-24 18:36:52,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:36:52,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:36:52,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:36:52,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:36:52,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:36:52,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089116039] [2023-08-24 18:36:52,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089116039] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:36:52,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:36:52,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-24 18:36:52,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97307115] [2023-08-24 18:36:52,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:36:52,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-24 18:36:52,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:36:52,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-24 18:36:52,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-24 18:36:52,119 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 273 [2023-08-24 18:36:52,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 92 transitions, 196 flow. Second operand has 2 states, 2 states have (on average 128.0) internal successors, (256), 2 states have internal predecessors, (256), 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) [2023-08-24 18:36:52,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:36:52,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 273 [2023-08-24 18:36:52,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:36:52,268 INFO L124 PetriNetUnfolderBase]: 659/1554 cut-off events. [2023-08-24 18:36:52,268 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2023-08-24 18:36:52,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2717 conditions, 1554 events. 659/1554 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 10723 event pairs, 599 based on Foata normal form. 0/1402 useless extension candidates. Maximal degree in co-relation 2127. Up to 1110 conditions per place. [2023-08-24 18:36:52,276 INFO L140 encePairwiseOnDemand]: 254/273 looper letters, 33 selfloop transitions, 0 changer transitions 0/73 dead transitions. [2023-08-24 18:36:52,276 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 73 transitions, 224 flow [2023-08-24 18:36:52,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-24 18:36:52,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-24 18:36:52,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 304 transitions. [2023-08-24 18:36:52,278 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5567765567765568 [2023-08-24 18:36:52,278 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 304 transitions. [2023-08-24 18:36:52,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 304 transitions. [2023-08-24 18:36:52,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:36:52,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 304 transitions. [2023-08-24 18:36:52,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 152.0) internal successors, (304), 2 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) [2023-08-24 18:36:52,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 273.0) internal successors, (819), 3 states have internal predecessors, (819), 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) [2023-08-24 18:36:52,281 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 273.0) internal successors, (819), 3 states have internal predecessors, (819), 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) [2023-08-24 18:36:52,281 INFO L175 Difference]: Start difference. First operand has 95 places, 92 transitions, 196 flow. Second operand 2 states and 304 transitions. [2023-08-24 18:36:52,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 73 transitions, 224 flow [2023-08-24 18:36:52,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 73 transitions, 222 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-08-24 18:36:52,284 INFO L231 Difference]: Finished difference. Result has 77 places, 73 transitions, 156 flow [2023-08-24 18:36:52,284 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=156, PETRI_PLACES=77, PETRI_TRANSITIONS=73} [2023-08-24 18:36:52,286 INFO L281 CegarLoopForPetriNet]: 95 programPoint places, -18 predicate places. [2023-08-24 18:36:52,286 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 73 transitions, 156 flow [2023-08-24 18:36:52,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 128.0) internal successors, (256), 2 states have internal predecessors, (256), 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) [2023-08-24 18:36:52,286 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:36:52,287 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-24 18:36:52,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-24 18:36:52,287 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-08-24 18:36:52,287 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:36:52,287 INFO L85 PathProgramCache]: Analyzing trace with hash 2056586005, now seen corresponding path program 1 times [2023-08-24 18:36:52,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:36:52,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413384375] [2023-08-24 18:36:52,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:36:52,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:36:52,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:36:52,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:36:52,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:36:52,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413384375] [2023-08-24 18:36:52,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413384375] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:36:52,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:36:52,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:36:52,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010582428] [2023-08-24 18:36:52,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:36:52,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:36:52,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:36:52,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:36:52,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:36:52,317 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 273 [2023-08-24 18:36:52,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 73 transitions, 156 flow. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 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) [2023-08-24 18:36:52,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:36:52,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 273 [2023-08-24 18:36:52,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:36:52,581 INFO L124 PetriNetUnfolderBase]: 1869/3950 cut-off events. [2023-08-24 18:36:52,581 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2023-08-24 18:36:52,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7257 conditions, 3950 events. 1869/3950 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 30816 event pairs, 650 based on Foata normal form. 0/3410 useless extension candidates. Maximal degree in co-relation 7252. Up to 1951 conditions per place. [2023-08-24 18:36:52,598 INFO L140 encePairwiseOnDemand]: 257/273 looper letters, 78 selfloop transitions, 12 changer transitions 0/115 dead transitions. [2023-08-24 18:36:52,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 115 transitions, 425 flow [2023-08-24 18:36:52,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:36:52,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:36:52,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 400 transitions. [2023-08-24 18:36:52,600 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4884004884004884 [2023-08-24 18:36:52,600 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 400 transitions. [2023-08-24 18:36:52,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 400 transitions. [2023-08-24 18:36:52,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:36:52,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 400 transitions. [2023-08-24 18:36:52,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 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) [2023-08-24 18:36:52,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 273.0) internal successors, (1092), 4 states have internal predecessors, (1092), 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) [2023-08-24 18:36:52,602 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 273.0) internal successors, (1092), 4 states have internal predecessors, (1092), 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) [2023-08-24 18:36:52,603 INFO L175 Difference]: Start difference. First operand has 77 places, 73 transitions, 156 flow. Second operand 3 states and 400 transitions. [2023-08-24 18:36:52,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 115 transitions, 425 flow [2023-08-24 18:36:52,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 115 transitions, 425 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-24 18:36:52,605 INFO L231 Difference]: Finished difference. Result has 81 places, 85 transitions, 260 flow [2023-08-24 18:36:52,605 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=260, PETRI_PLACES=81, PETRI_TRANSITIONS=85} [2023-08-24 18:36:52,605 INFO L281 CegarLoopForPetriNet]: 95 programPoint places, -14 predicate places. [2023-08-24 18:36:52,606 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 85 transitions, 260 flow [2023-08-24 18:36:52,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 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) [2023-08-24 18:36:52,606 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:36:52,606 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:36:52,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-24 18:36:52,606 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-08-24 18:36:52,606 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:36:52,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1424830215, now seen corresponding path program 1 times [2023-08-24 18:36:52,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:36:52,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514802819] [2023-08-24 18:36:52,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:36:52,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:36:52,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:36:52,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:36:52,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:36:52,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514802819] [2023-08-24 18:36:52,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514802819] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:36:52,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:36:52,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:36:52,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501016527] [2023-08-24 18:36:52,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:36:52,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:36:52,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:36:52,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:36:52,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:36:52,625 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 273 [2023-08-24 18:36:52,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 85 transitions, 260 flow. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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) [2023-08-24 18:36:52,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:36:52,625 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 273 [2023-08-24 18:36:52,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:36:52,912 INFO L124 PetriNetUnfolderBase]: 1930/3985 cut-off events. [2023-08-24 18:36:52,913 INFO L125 PetriNetUnfolderBase]: For 1117/1121 co-relation queries the response was YES. [2023-08-24 18:36:52,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8560 conditions, 3985 events. 1930/3985 cut-off events. For 1117/1121 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 30759 event pairs, 1430 based on Foata normal form. 0/3505 useless extension candidates. Maximal degree in co-relation 8553. Up to 2989 conditions per place. [2023-08-24 18:36:52,931 INFO L140 encePairwiseOnDemand]: 265/273 looper letters, 80 selfloop transitions, 11 changer transitions 0/116 dead transitions. [2023-08-24 18:36:52,931 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 116 transitions, 551 flow [2023-08-24 18:36:52,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:36:52,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:36:52,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 372 transitions. [2023-08-24 18:36:52,933 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4542124542124542 [2023-08-24 18:36:52,933 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 372 transitions. [2023-08-24 18:36:52,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 372 transitions. [2023-08-24 18:36:52,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:36:52,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 372 transitions. [2023-08-24 18:36:52,934 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 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) [2023-08-24 18:36:52,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 273.0) internal successors, (1092), 4 states have internal predecessors, (1092), 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) [2023-08-24 18:36:52,936 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 273.0) internal successors, (1092), 4 states have internal predecessors, (1092), 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) [2023-08-24 18:36:52,936 INFO L175 Difference]: Start difference. First operand has 81 places, 85 transitions, 260 flow. Second operand 3 states and 372 transitions. [2023-08-24 18:36:52,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 116 transitions, 551 flow [2023-08-24 18:36:52,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 116 transitions, 513 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-24 18:36:52,940 INFO L231 Difference]: Finished difference. Result has 83 places, 94 transitions, 334 flow [2023-08-24 18:36:52,940 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=334, PETRI_PLACES=83, PETRI_TRANSITIONS=94} [2023-08-24 18:36:52,941 INFO L281 CegarLoopForPetriNet]: 95 programPoint places, -12 predicate places. [2023-08-24 18:36:52,941 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 94 transitions, 334 flow [2023-08-24 18:36:52,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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) [2023-08-24 18:36:52,941 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:36:52,941 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-08-24 18:36:52,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-24 18:36:52,942 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-08-24 18:36:52,942 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:36:52,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1479538085, now seen corresponding path program 1 times [2023-08-24 18:36:52,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:36:52,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675400614] [2023-08-24 18:36:52,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:36:52,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:36:52,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 18:36:52,949 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 18:36:52,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 18:36:52,954 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 18:36:52,954 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 18:36:52,955 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2023-08-24 18:36:52,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2023-08-24 18:36:52,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2023-08-24 18:36:52,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2023-08-24 18:36:52,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2023-08-24 18:36:52,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2023-08-24 18:36:52,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (42 of 49 remaining) [2023-08-24 18:36:52,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2023-08-24 18:36:52,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2023-08-24 18:36:52,956 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2023-08-24 18:36:52,956 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2023-08-24 18:36:52,956 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2023-08-24 18:36:52,956 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2023-08-24 18:36:52,956 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2023-08-24 18:36:52,956 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2023-08-24 18:36:52,956 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2023-08-24 18:36:52,956 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONASSERT (32 of 49 remaining) [2023-08-24 18:36:52,956 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2023-08-24 18:36:52,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2023-08-24 18:36:52,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2023-08-24 18:36:52,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2023-08-24 18:36:52,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2023-08-24 18:36:52,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2023-08-24 18:36:52,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2023-08-24 18:36:52,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2023-08-24 18:36:52,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2023-08-24 18:36:52,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2023-08-24 18:36:52,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2023-08-24 18:36:52,958 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2023-08-24 18:36:52,958 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2023-08-24 18:36:52,958 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2023-08-24 18:36:52,958 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2023-08-24 18:36:52,958 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONASSERT (16 of 49 remaining) [2023-08-24 18:36:52,958 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2023-08-24 18:36:52,958 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2023-08-24 18:36:52,958 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2023-08-24 18:36:52,958 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2023-08-24 18:36:52,959 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2023-08-24 18:36:52,959 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2023-08-24 18:36:52,959 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2023-08-24 18:36:52,959 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2023-08-24 18:36:52,959 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2023-08-24 18:36:52,959 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2023-08-24 18:36:52,959 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2023-08-24 18:36:52,959 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2023-08-24 18:36:52,959 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2023-08-24 18:36:52,959 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2023-08-24 18:36:52,960 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2023-08-24 18:36:52,960 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONASSERT (0 of 49 remaining) [2023-08-24 18:36:52,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-24 18:36:52,960 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-24 18:36:52,960 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 18:36:52,960 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-08-24 18:36:52,997 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 18:36:53,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 227 places, 233 transitions, 487 flow [2023-08-24 18:36:53,025 INFO L124 PetriNetUnfolderBase]: 16/267 cut-off events. [2023-08-24 18:36:53,026 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-24 18:36:53,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283 conditions, 267 events. 16/267 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 893 event pairs, 0 based on Foata normal form. 0/199 useless extension candidates. Maximal degree in co-relation 216. Up to 8 conditions per place. [2023-08-24 18:36:53,027 INFO L82 GeneralOperation]: Start removeDead. Operand has 227 places, 233 transitions, 487 flow [2023-08-24 18:36:53,030 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 227 places, 233 transitions, 487 flow [2023-08-24 18:36:53,030 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 18:36:53,030 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 227 places, 233 transitions, 487 flow [2023-08-24 18:36:53,030 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 227 places, 233 transitions, 487 flow [2023-08-24 18:36:53,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 227 places, 233 transitions, 487 flow [2023-08-24 18:36:53,049 INFO L124 PetriNetUnfolderBase]: 16/267 cut-off events. [2023-08-24 18:36:53,049 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-24 18:36:53,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283 conditions, 267 events. 16/267 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 893 event pairs, 0 based on Foata normal form. 0/199 useless extension candidates. Maximal degree in co-relation 216. Up to 8 conditions per place. [2023-08-24 18:36:53,060 INFO L119 LiptonReduction]: Number of co-enabled transitions 33456 [2023-08-24 18:36:54,298 INFO L134 LiptonReduction]: Checked pairs total: 144916 [2023-08-24 18:36:54,298 INFO L136 LiptonReduction]: Total number of compositions: 159 [2023-08-24 18:36:54,300 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-24 18:36:54,300 INFO L357 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@4d3ad113, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 18:36:54,300 INFO L358 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2023-08-24 18:36:54,301 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 18:36:54,301 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-08-24 18:36:54,301 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 18:36:54,301 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:36:54,301 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-24 18:36:54,301 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-24 18:36:54,302 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:36:54,302 INFO L85 PathProgramCache]: Analyzing trace with hash 42926377, now seen corresponding path program 1 times [2023-08-24 18:36:54,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:36:54,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759032862] [2023-08-24 18:36:54,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:36:54,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:36:54,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:36:54,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:36:54,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:36:54,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759032862] [2023-08-24 18:36:54,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759032862] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:36:54,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:36:54,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-24 18:36:54,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852312761] [2023-08-24 18:36:54,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:36:54,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-24 18:36:54,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:36:54,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-24 18:36:54,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-24 18:36:54,310 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 392 [2023-08-24 18:36:54,311 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 137 transitions, 295 flow. Second operand has 2 states, 2 states have (on average 179.0) internal successors, (358), 2 states have internal predecessors, (358), 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) [2023-08-24 18:36:54,311 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:36:54,311 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 392 [2023-08-24 18:36:54,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:36:56,264 INFO L124 PetriNetUnfolderBase]: 17669/29983 cut-off events. [2023-08-24 18:36:56,264 INFO L125 PetriNetUnfolderBase]: For 1324/1324 co-relation queries the response was YES. [2023-08-24 18:36:56,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55747 conditions, 29983 events. 17669/29983 cut-off events. For 1324/1324 co-relation queries the response was YES. Maximal size of possible extension queue 1064. Compared 255584 event pairs, 16261 based on Foata normal form. 420/27797 useless extension candidates. Maximal degree in co-relation 34909. Up to 24840 conditions per place. [2023-08-24 18:36:56,412 INFO L140 encePairwiseOnDemand]: 363/392 looper letters, 50 selfloop transitions, 0 changer transitions 0/108 dead transitions. [2023-08-24 18:36:56,412 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 108 transitions, 337 flow [2023-08-24 18:36:56,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-24 18:36:56,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-24 18:36:56,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 433 transitions. [2023-08-24 18:36:56,414 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5522959183673469 [2023-08-24 18:36:56,414 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 433 transitions. [2023-08-24 18:36:56,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 433 transitions. [2023-08-24 18:36:56,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:36:56,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 433 transitions. [2023-08-24 18:36:56,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 216.5) internal successors, (433), 2 states have internal predecessors, (433), 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) [2023-08-24 18:36:56,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 392.0) internal successors, (1176), 3 states have internal predecessors, (1176), 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) [2023-08-24 18:36:56,417 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 392.0) internal successors, (1176), 3 states have internal predecessors, (1176), 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) [2023-08-24 18:36:56,417 INFO L175 Difference]: Start difference. First operand has 140 places, 137 transitions, 295 flow. Second operand 2 states and 433 transitions. [2023-08-24 18:36:56,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 108 transitions, 337 flow [2023-08-24 18:36:56,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 108 transitions, 331 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-08-24 18:36:56,420 INFO L231 Difference]: Finished difference. Result has 113 places, 108 transitions, 231 flow [2023-08-24 18:36:56,421 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=392, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=231, PETRI_PLACES=113, PETRI_TRANSITIONS=108} [2023-08-24 18:36:56,422 INFO L281 CegarLoopForPetriNet]: 140 programPoint places, -27 predicate places. [2023-08-24 18:36:56,422 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 108 transitions, 231 flow [2023-08-24 18:36:56,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 179.0) internal successors, (358), 2 states have internal predecessors, (358), 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) [2023-08-24 18:36:56,422 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:36:56,422 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-24 18:36:56,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-24 18:36:56,422 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-24 18:36:56,423 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:36:56,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1697392056, now seen corresponding path program 1 times [2023-08-24 18:36:56,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:36:56,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154808847] [2023-08-24 18:36:56,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:36:56,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:36:56,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:36:56,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:36:56,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:36:56,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154808847] [2023-08-24 18:36:56,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154808847] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:36:56,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:36:56,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:36:56,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049325535] [2023-08-24 18:36:56,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:36:56,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:36:56,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:36:56,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:36:56,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:36:56,440 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 392 [2023-08-24 18:36:56,441 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 108 transitions, 231 flow. Second operand has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 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) [2023-08-24 18:36:56,441 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:36:56,441 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 392 [2023-08-24 18:36:56,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:37:03,488 INFO L124 PetriNetUnfolderBase]: 85524/141124 cut-off events. [2023-08-24 18:37:03,488 INFO L125 PetriNetUnfolderBase]: For 2026/2026 co-relation queries the response was YES. [2023-08-24 18:37:03,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265736 conditions, 141124 events. 85524/141124 cut-off events. For 2026/2026 co-relation queries the response was YES. Maximal size of possible extension queue 4278. Compared 1380574 event pairs, 31969 based on Foata normal form. 0/118833 useless extension candidates. Maximal degree in co-relation 265730. Up to 71529 conditions per place. [2023-08-24 18:37:04,229 INFO L140 encePairwiseOnDemand]: 368/392 looper letters, 118 selfloop transitions, 18 changer transitions 0/172 dead transitions. [2023-08-24 18:37:04,229 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 172 transitions, 641 flow [2023-08-24 18:37:04,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:37:04,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:37:04,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 565 transitions. [2023-08-24 18:37:04,231 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4804421768707483 [2023-08-24 18:37:04,231 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 565 transitions. [2023-08-24 18:37:04,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 565 transitions. [2023-08-24 18:37:04,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:37:04,234 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 565 transitions. [2023-08-24 18:37:04,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 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) [2023-08-24 18:37:04,238 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 392.0) internal successors, (1568), 4 states have internal predecessors, (1568), 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) [2023-08-24 18:37:04,239 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 392.0) internal successors, (1568), 4 states have internal predecessors, (1568), 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) [2023-08-24 18:37:04,239 INFO L175 Difference]: Start difference. First operand has 113 places, 108 transitions, 231 flow. Second operand 3 states and 565 transitions. [2023-08-24 18:37:04,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 172 transitions, 641 flow [2023-08-24 18:37:04,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 172 transitions, 641 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-24 18:37:04,365 INFO L231 Difference]: Finished difference. Result has 117 places, 126 transitions, 387 flow [2023-08-24 18:37:04,366 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=392, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=387, PETRI_PLACES=117, PETRI_TRANSITIONS=126} [2023-08-24 18:37:04,366 INFO L281 CegarLoopForPetriNet]: 140 programPoint places, -23 predicate places. [2023-08-24 18:37:04,366 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 126 transitions, 387 flow [2023-08-24 18:37:04,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 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) [2023-08-24 18:37:04,367 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:37:04,367 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:37:04,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-24 18:37:04,367 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-24 18:37:04,367 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:37:04,367 INFO L85 PathProgramCache]: Analyzing trace with hash -10868469, now seen corresponding path program 1 times [2023-08-24 18:37:04,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:37:04,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259035474] [2023-08-24 18:37:04,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:37:04,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:37:04,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:37:04,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:37:04,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:37:04,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259035474] [2023-08-24 18:37:04,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259035474] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:37:04,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:37:04,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:37:04,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764390872] [2023-08-24 18:37:04,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:37:04,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:37:04,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:37:04,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:37:04,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:37:04,401 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 392 [2023-08-24 18:37:04,401 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 126 transitions, 387 flow. Second operand has 3 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 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) [2023-08-24 18:37:04,401 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:37:04,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 392 [2023-08-24 18:37:04,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:37:12,555 INFO L124 PetriNetUnfolderBase]: 90732/145098 cut-off events. [2023-08-24 18:37:12,556 INFO L125 PetriNetUnfolderBase]: For 48424/48780 co-relation queries the response was YES. [2023-08-24 18:37:12,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 326170 conditions, 145098 events. 90732/145098 cut-off events. For 48424/48780 co-relation queries the response was YES. Maximal size of possible extension queue 4408. Compared 1364457 event pairs, 64618 based on Foata normal form. 48/125904 useless extension candidates. Maximal degree in co-relation 326162. Up to 117279 conditions per place. [2023-08-24 18:37:13,271 INFO L140 encePairwiseOnDemand]: 380/392 looper letters, 132 selfloop transitions, 21 changer transitions 0/189 dead transitions. [2023-08-24 18:37:13,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 189 transitions, 915 flow [2023-08-24 18:37:13,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:37:13,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:37:13,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 537 transitions. [2023-08-24 18:37:13,274 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45663265306122447 [2023-08-24 18:37:13,274 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 537 transitions. [2023-08-24 18:37:13,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 537 transitions. [2023-08-24 18:37:13,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:37:13,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 537 transitions. [2023-08-24 18:37:13,275 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 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) [2023-08-24 18:37:13,276 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 392.0) internal successors, (1568), 4 states have internal predecessors, (1568), 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) [2023-08-24 18:37:13,277 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 392.0) internal successors, (1568), 4 states have internal predecessors, (1568), 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) [2023-08-24 18:37:13,277 INFO L175 Difference]: Start difference. First operand has 117 places, 126 transitions, 387 flow. Second operand 3 states and 537 transitions. [2023-08-24 18:37:13,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 189 transitions, 915 flow [2023-08-24 18:37:13,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 189 transitions, 853 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-24 18:37:13,356 INFO L231 Difference]: Finished difference. Result has 119 places, 145 transitions, 549 flow [2023-08-24 18:37:13,356 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=392, PETRI_DIFFERENCE_MINUEND_FLOW=351, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=549, PETRI_PLACES=119, PETRI_TRANSITIONS=145} [2023-08-24 18:37:13,356 INFO L281 CegarLoopForPetriNet]: 140 programPoint places, -21 predicate places. [2023-08-24 18:37:13,357 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 145 transitions, 549 flow [2023-08-24 18:37:13,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 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) [2023-08-24 18:37:13,357 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:37:13,357 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:37:13,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-24 18:37:13,357 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-24 18:37:13,357 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:37:13,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1461092386, now seen corresponding path program 1 times [2023-08-24 18:37:13,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:37:13,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84628555] [2023-08-24 18:37:13,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:37:13,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:37:13,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:37:13,371 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-24 18:37:13,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:37:13,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84628555] [2023-08-24 18:37:13,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84628555] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:37:13,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:37:13,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:37:13,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560321573] [2023-08-24 18:37:13,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:37:13,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:37:13,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:37:13,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:37:13,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:37:13,373 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 392 [2023-08-24 18:37:13,373 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 145 transitions, 549 flow. Second operand has 3 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 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) [2023-08-24 18:37:13,374 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:37:13,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 392 [2023-08-24 18:37:13,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:37:22,097 INFO L124 PetriNetUnfolderBase]: 95715/154199 cut-off events. [2023-08-24 18:37:22,098 INFO L125 PetriNetUnfolderBase]: For 74787/75565 co-relation queries the response was YES. [2023-08-24 18:37:22,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 361640 conditions, 154199 events. 95715/154199 cut-off events. For 74787/75565 co-relation queries the response was YES. Maximal size of possible extension queue 4709. Compared 1471060 event pairs, 66166 based on Foata normal form. 48/132539 useless extension candidates. Maximal degree in co-relation 361631. Up to 123867 conditions per place. [2023-08-24 18:37:23,049 INFO L140 encePairwiseOnDemand]: 380/392 looper letters, 149 selfloop transitions, 33 changer transitions 0/218 dead transitions. [2023-08-24 18:37:23,049 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 218 transitions, 1224 flow [2023-08-24 18:37:23,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:37:23,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:37:23,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 536 transitions. [2023-08-24 18:37:23,051 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4557823129251701 [2023-08-24 18:37:23,051 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 536 transitions. [2023-08-24 18:37:23,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 536 transitions. [2023-08-24 18:37:23,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:37:23,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 536 transitions. [2023-08-24 18:37:23,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 178.66666666666666) internal successors, (536), 3 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) [2023-08-24 18:37:23,053 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 392.0) internal successors, (1568), 4 states have internal predecessors, (1568), 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) [2023-08-24 18:37:23,054 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 392.0) internal successors, (1568), 4 states have internal predecessors, (1568), 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) [2023-08-24 18:37:23,054 INFO L175 Difference]: Start difference. First operand has 119 places, 145 transitions, 549 flow. Second operand 3 states and 536 transitions. [2023-08-24 18:37:23,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 218 transitions, 1224 flow [2023-08-24 18:37:23,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 218 transitions, 1156 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-24 18:37:23,366 INFO L231 Difference]: Finished difference. Result has 121 places, 174 transitions, 861 flow [2023-08-24 18:37:23,366 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=392, PETRI_DIFFERENCE_MINUEND_FLOW=507, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=861, PETRI_PLACES=121, PETRI_TRANSITIONS=174} [2023-08-24 18:37:23,367 INFO L281 CegarLoopForPetriNet]: 140 programPoint places, -19 predicate places. [2023-08-24 18:37:23,367 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 174 transitions, 861 flow [2023-08-24 18:37:23,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 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) [2023-08-24 18:37:23,367 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:37:23,367 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-08-24 18:37:23,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-24 18:37:23,367 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-24 18:37:23,367 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:37:23,368 INFO L85 PathProgramCache]: Analyzing trace with hash -856901844, now seen corresponding path program 1 times [2023-08-24 18:37:23,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:37:23,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540443006] [2023-08-24 18:37:23,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:37:23,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:37:23,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 18:37:23,379 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 18:37:23,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 18:37:23,384 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 18:37:23,384 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 18:37:23,384 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (64 of 65 remaining) [2023-08-24 18:37:23,384 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (63 of 65 remaining) [2023-08-24 18:37:23,384 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (62 of 65 remaining) [2023-08-24 18:37:23,385 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (61 of 65 remaining) [2023-08-24 18:37:23,385 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (60 of 65 remaining) [2023-08-24 18:37:23,385 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (59 of 65 remaining) [2023-08-24 18:37:23,385 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (58 of 65 remaining) [2023-08-24 18:37:23,385 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (57 of 65 remaining) [2023-08-24 18:37:23,385 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (56 of 65 remaining) [2023-08-24 18:37:23,385 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (55 of 65 remaining) [2023-08-24 18:37:23,385 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (54 of 65 remaining) [2023-08-24 18:37:23,385 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (53 of 65 remaining) [2023-08-24 18:37:23,385 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (52 of 65 remaining) [2023-08-24 18:37:23,385 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (51 of 65 remaining) [2023-08-24 18:37:23,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (50 of 65 remaining) [2023-08-24 18:37:23,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (49 of 65 remaining) [2023-08-24 18:37:23,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONASSERT (48 of 65 remaining) [2023-08-24 18:37:23,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (47 of 65 remaining) [2023-08-24 18:37:23,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (46 of 65 remaining) [2023-08-24 18:37:23,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 65 remaining) [2023-08-24 18:37:23,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (44 of 65 remaining) [2023-08-24 18:37:23,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (43 of 65 remaining) [2023-08-24 18:37:23,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (42 of 65 remaining) [2023-08-24 18:37:23,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (41 of 65 remaining) [2023-08-24 18:37:23,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (40 of 65 remaining) [2023-08-24 18:37:23,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (39 of 65 remaining) [2023-08-24 18:37:23,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (38 of 65 remaining) [2023-08-24 18:37:23,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (37 of 65 remaining) [2023-08-24 18:37:23,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (36 of 65 remaining) [2023-08-24 18:37:23,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (35 of 65 remaining) [2023-08-24 18:37:23,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (34 of 65 remaining) [2023-08-24 18:37:23,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (33 of 65 remaining) [2023-08-24 18:37:23,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONASSERT (32 of 65 remaining) [2023-08-24 18:37:23,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 65 remaining) [2023-08-24 18:37:23,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 65 remaining) [2023-08-24 18:37:23,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 65 remaining) [2023-08-24 18:37:23,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (28 of 65 remaining) [2023-08-24 18:37:23,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 65 remaining) [2023-08-24 18:37:23,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (26 of 65 remaining) [2023-08-24 18:37:23,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (25 of 65 remaining) [2023-08-24 18:37:23,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (24 of 65 remaining) [2023-08-24 18:37:23,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (23 of 65 remaining) [2023-08-24 18:37:23,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (22 of 65 remaining) [2023-08-24 18:37:23,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (21 of 65 remaining) [2023-08-24 18:37:23,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (20 of 65 remaining) [2023-08-24 18:37:23,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (19 of 65 remaining) [2023-08-24 18:37:23,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (18 of 65 remaining) [2023-08-24 18:37:23,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (17 of 65 remaining) [2023-08-24 18:37:23,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONASSERT (16 of 65 remaining) [2023-08-24 18:37:23,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 65 remaining) [2023-08-24 18:37:23,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 65 remaining) [2023-08-24 18:37:23,389 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 65 remaining) [2023-08-24 18:37:23,389 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (12 of 65 remaining) [2023-08-24 18:37:23,389 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (11 of 65 remaining) [2023-08-24 18:37:23,389 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (10 of 65 remaining) [2023-08-24 18:37:23,389 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (9 of 65 remaining) [2023-08-24 18:37:23,389 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (8 of 65 remaining) [2023-08-24 18:37:23,389 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (7 of 65 remaining) [2023-08-24 18:37:23,389 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (6 of 65 remaining) [2023-08-24 18:37:23,389 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (5 of 65 remaining) [2023-08-24 18:37:23,389 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (4 of 65 remaining) [2023-08-24 18:37:23,389 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (3 of 65 remaining) [2023-08-24 18:37:23,389 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (2 of 65 remaining) [2023-08-24 18:37:23,390 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (1 of 65 remaining) [2023-08-24 18:37:23,390 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONASSERT (0 of 65 remaining) [2023-08-24 18:37:23,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-24 18:37:23,390 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-24 18:37:23,390 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 18:37:23,390 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-08-24 18:37:23,408 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 18:37:23,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 294 places, 302 transitions, 636 flow [2023-08-24 18:37:23,436 INFO L124 PetriNetUnfolderBase]: 21/348 cut-off events. [2023-08-24 18:37:23,436 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-24 18:37:23,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 371 conditions, 348 events. 21/348 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1332 event pairs, 0 based on Foata normal form. 0/258 useless extension candidates. Maximal degree in co-relation 284. Up to 10 conditions per place. [2023-08-24 18:37:23,439 INFO L82 GeneralOperation]: Start removeDead. Operand has 294 places, 302 transitions, 636 flow [2023-08-24 18:37:23,442 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 294 places, 302 transitions, 636 flow [2023-08-24 18:37:23,442 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 18:37:23,442 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 294 places, 302 transitions, 636 flow [2023-08-24 18:37:23,442 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 294 places, 302 transitions, 636 flow [2023-08-24 18:37:23,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 294 places, 302 transitions, 636 flow [2023-08-24 18:37:23,470 INFO L124 PetriNetUnfolderBase]: 21/348 cut-off events. [2023-08-24 18:37:23,470 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-24 18:37:23,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 371 conditions, 348 events. 21/348 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1332 event pairs, 0 based on Foata normal form. 0/258 useless extension candidates. Maximal degree in co-relation 284. Up to 10 conditions per place. [2023-08-24 18:37:23,481 INFO L119 LiptonReduction]: Number of co-enabled transitions 63376 [2023-08-24 18:37:24,925 INFO L134 LiptonReduction]: Checked pairs total: 240975 [2023-08-24 18:37:24,925 INFO L136 LiptonReduction]: Total number of compositions: 190 [2023-08-24 18:37:24,926 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-24 18:37:24,926 INFO L357 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@4d3ad113, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 18:37:24,926 INFO L358 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2023-08-24 18:37:24,927 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 18:37:24,927 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-08-24 18:37:24,927 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 18:37:24,927 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:37:24,927 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-24 18:37:24,927 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2023-08-24 18:37:24,928 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:37:24,928 INFO L85 PathProgramCache]: Analyzing trace with hash 60261517, now seen corresponding path program 1 times [2023-08-24 18:37:24,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:37:24,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905802251] [2023-08-24 18:37:24,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:37:24,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:37:24,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:37:24,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:37:24,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:37:24,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905802251] [2023-08-24 18:37:24,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905802251] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:37:24,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:37:24,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-24 18:37:24,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518785924] [2023-08-24 18:37:24,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:37:24,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-24 18:37:24,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:37:24,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-24 18:37:24,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-24 18:37:24,936 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 492 [2023-08-24 18:37:24,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 182 transitions, 396 flow. Second operand has 2 states, 2 states have (on average 230.0) internal successors, (460), 2 states have internal predecessors, (460), 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) [2023-08-24 18:37:24,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:37:24,936 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 492 [2023-08-24 18:37:24,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:37:52,898 INFO L124 PetriNetUnfolderBase]: 286051/444823 cut-off events. [2023-08-24 18:37:52,898 INFO L125 PetriNetUnfolderBase]: For 34456/34456 co-relation queries the response was YES. [2023-08-24 18:37:53,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 831831 conditions, 444823 events. 286051/444823 cut-off events. For 34456/34456 co-relation queries the response was YES. Maximal size of possible extension queue 12114. Compared 4589527 event pairs, 262863 based on Foata normal form. 40466/438691 useless extension candidates. Maximal degree in co-relation 50517. Up to 368824 conditions per place. [2023-08-24 18:37:55,818 INFO L140 encePairwiseOnDemand]: 453/492 looper letters, 62 selfloop transitions, 0 changer transitions 0/143 dead transitions. [2023-08-24 18:37:55,818 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 143 transitions, 442 flow [2023-08-24 18:37:55,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-24 18:37:55,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-24 18:37:55,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 557 transitions. [2023-08-24 18:37:55,821 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5660569105691057 [2023-08-24 18:37:55,821 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 557 transitions. [2023-08-24 18:37:55,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 557 transitions. [2023-08-24 18:37:55,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:37:55,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 557 transitions. [2023-08-24 18:37:55,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 278.5) internal successors, (557), 2 states have internal predecessors, (557), 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) [2023-08-24 18:37:55,824 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 492.0) internal successors, (1476), 3 states have internal predecessors, (1476), 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) [2023-08-24 18:37:55,824 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 492.0) internal successors, (1476), 3 states have internal predecessors, (1476), 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) [2023-08-24 18:37:55,824 INFO L175 Difference]: Start difference. First operand has 185 places, 182 transitions, 396 flow. Second operand 2 states and 557 transitions. [2023-08-24 18:37:55,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 143 transitions, 442 flow [2023-08-24 18:37:55,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 143 transitions, 430 flow, removed 6 selfloop flow, removed 0 redundant places. [2023-08-24 18:37:55,838 INFO L231 Difference]: Finished difference. Result has 149 places, 143 transitions, 306 flow [2023-08-24 18:37:55,838 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=492, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=306, PETRI_PLACES=149, PETRI_TRANSITIONS=143} [2023-08-24 18:37:55,838 INFO L281 CegarLoopForPetriNet]: 185 programPoint places, -36 predicate places. [2023-08-24 18:37:55,838 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 143 transitions, 306 flow [2023-08-24 18:37:55,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 230.0) internal successors, (460), 2 states have internal predecessors, (460), 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) [2023-08-24 18:37:55,839 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:37:55,839 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-24 18:37:55,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-24 18:37:55,839 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2023-08-24 18:37:55,839 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:37:55,839 INFO L85 PathProgramCache]: Analyzing trace with hash 2076795407, now seen corresponding path program 1 times [2023-08-24 18:37:55,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:37:55,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509852945] [2023-08-24 18:37:55,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:37:55,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:37:55,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:37:55,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:37:55,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:37:55,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509852945] [2023-08-24 18:37:55,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509852945] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:37:55,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:37:55,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:37:55,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359959350] [2023-08-24 18:37:55,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:37:55,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:37:55,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:37:55,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:37:55,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:37:55,863 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 492 [2023-08-24 18:37:55,863 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 143 transitions, 306 flow. Second operand has 3 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 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) [2023-08-24 18:37:55,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:37:55,863 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 492 [2023-08-24 18:37:55,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand