/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 --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -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/goblint-regression/09-regions_17-arrayloop_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 17:37:59,741 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 17:37:59,816 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 [2023-08-25 17:37:59,820 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 17:37:59,820 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 17:37:59,856 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 17:37:59,857 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 17:37:59,857 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 17:37:59,858 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 17:37:59,861 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 17:37:59,862 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 17:37:59,862 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 17:37:59,862 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 17:37:59,863 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 17:37:59,864 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 17:37:59,864 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 17:37:59,864 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 17:37:59,864 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 17:37:59,864 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 17:37:59,865 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 17:37:59,865 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 17:37:59,866 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 17:37:59,866 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 17:37:59,866 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 17:37:59,866 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 17:37:59,867 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 17:37:59,867 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 17:37:59,867 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:37:59,867 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 17:37:59,867 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 17:37:59,868 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 17:37:59,869 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 17:37:59,869 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 17:37:59,869 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 17:37:59,869 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 17:37:59,869 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 17:38:00,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 17:38:00,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 17:38:00,201 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 17:38:00,202 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 17:38:00,204 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 17:38:00,206 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_17-arrayloop_nr.i [2023-08-25 17:38:01,262 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 17:38:01,567 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 17:38:01,567 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_17-arrayloop_nr.i [2023-08-25 17:38:01,590 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29f5f32cc/93d6204ce5bc436fb35af1c1b6bb3cf0/FLAGd75ba5491 [2023-08-25 17:38:01,605 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29f5f32cc/93d6204ce5bc436fb35af1c1b6bb3cf0 [2023-08-25 17:38:01,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 17:38:01,611 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 17:38:01,613 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 17:38:01,613 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 17:38:01,616 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 17:38:01,617 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:38:01" (1/1) ... [2023-08-25 17:38:01,618 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3527250 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:38:01, skipping insertion in model container [2023-08-25 17:38:01,618 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:38:01" (1/1) ... [2023-08-25 17:38:01,672 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 17:38:02,134 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:38:02,148 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 17:38:02,161 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 17:38:02,163 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 17:38:02,182 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [1044] [2023-08-25 17:38:02,209 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:38:02,299 INFO L206 MainTranslator]: Completed translation [2023-08-25 17:38:02,299 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:38:02 WrapperNode [2023-08-25 17:38:02,299 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 17:38:02,300 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 17:38:02,300 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 17:38:02,301 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 17:38:02,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:38:02" (1/1) ... [2023-08-25 17:38:02,330 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:38:02" (1/1) ... [2023-08-25 17:38:02,374 INFO L138 Inliner]: procedures = 368, calls = 28, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 232 [2023-08-25 17:38:02,375 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 17:38:02,375 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 17:38:02,376 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 17:38:02,376 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 17:38:02,383 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:38:02" (1/1) ... [2023-08-25 17:38:02,383 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:38:02" (1/1) ... [2023-08-25 17:38:02,389 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:38:02" (1/1) ... [2023-08-25 17:38:02,389 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:38:02" (1/1) ... [2023-08-25 17:38:02,408 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:38:02" (1/1) ... [2023-08-25 17:38:02,411 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:38:02" (1/1) ... [2023-08-25 17:38:02,413 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:38:02" (1/1) ... [2023-08-25 17:38:02,415 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:38:02" (1/1) ... [2023-08-25 17:38:02,419 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 17:38:02,420 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 17:38:02,420 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 17:38:02,420 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 17:38:02,421 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:38:02" (1/1) ... [2023-08-25 17:38:02,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:38:02,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 17:38:02,448 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) [2023-08-25 17:38:02,485 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 [2023-08-25 17:38:02,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 17:38:02,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-25 17:38:02,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 17:38:02,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 17:38:02,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 17:38:02,512 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 17:38:02,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-25 17:38:02,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 17:38:02,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-25 17:38:02,513 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 17:38:02,513 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 17:38:02,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 17:38:02,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 17:38:02,514 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 17:38:02,671 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 17:38:02,673 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 17:38:03,153 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 17:38:03,165 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 17:38:03,165 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-25 17:38:03,167 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:38:03 BoogieIcfgContainer [2023-08-25 17:38:03,168 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 17:38:03,170 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 17:38:03,170 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 17:38:03,172 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 17:38:03,173 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 05:38:01" (1/3) ... [2023-08-25 17:38:03,173 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62d1129c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:38:03, skipping insertion in model container [2023-08-25 17:38:03,173 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:38:02" (2/3) ... [2023-08-25 17:38:03,173 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62d1129c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:38:03, skipping insertion in model container [2023-08-25 17:38:03,174 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:38:03" (3/3) ... [2023-08-25 17:38:03,174 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_17-arrayloop_nr.i [2023-08-25 17:38:03,188 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 17:38:03,189 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-08-25 17:38:03,189 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 17:38:03,286 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 17:38:03,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 253 places, 255 transitions, 515 flow [2023-08-25 17:38:03,432 INFO L124 PetriNetUnfolderBase]: 6/254 cut-off events. [2023-08-25 17:38:03,432 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:38:03,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 254 events. 6/254 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 405 event pairs, 0 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 191. Up to 2 conditions per place. [2023-08-25 17:38:03,442 INFO L82 GeneralOperation]: Start removeDead. Operand has 253 places, 255 transitions, 515 flow [2023-08-25 17:38:03,450 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 252 places, 254 transitions, 511 flow [2023-08-25 17:38:03,453 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 17:38:03,460 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 252 places, 254 transitions, 511 flow [2023-08-25 17:38:03,462 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 252 places, 254 transitions, 511 flow [2023-08-25 17:38:03,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 252 places, 254 transitions, 511 flow [2023-08-25 17:38:03,552 INFO L124 PetriNetUnfolderBase]: 6/254 cut-off events. [2023-08-25 17:38:03,553 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:38:03,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 254 events. 6/254 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 405 event pairs, 0 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 191. Up to 2 conditions per place. [2023-08-25 17:38:03,567 INFO L119 LiptonReduction]: Number of co-enabled transitions 17820 [2023-08-25 17:38:17,453 INFO L134 LiptonReduction]: Checked pairs total: 108171 [2023-08-25 17:38:17,453 INFO L136 LiptonReduction]: Total number of compositions: 147 [2023-08-25 17:38:17,464 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 17:38:17,469 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;@10c8d917, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 17:38:17,469 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2023-08-25 17:38:17,471 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 17:38:17,471 INFO L124 PetriNetUnfolderBase]: 1/3 cut-off events. [2023-08-25 17:38:17,471 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:38:17,472 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:38:17,472 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-25 17:38:17,472 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 17:38:17,476 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:38:17,476 INFO L85 PathProgramCache]: Analyzing trace with hash 25566, now seen corresponding path program 1 times [2023-08-25 17:38:17,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:38:17,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986981534] [2023-08-25 17:38:17,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:38:17,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:38:17,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:38:17,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:38:17,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:38:17,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986981534] [2023-08-25 17:38:17,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986981534] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:38:17,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:38:17,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 17:38:17,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25718085] [2023-08-25 17:38:17,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:38:17,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 17:38:17,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:38:17,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 17:38:17,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 17:38:17,691 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 402 [2023-08-25 17:38:17,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 122 transitions, 247 flow. Second operand has 2 states, 2 states have (on average 252.0) internal successors, (504), 2 states have internal predecessors, (504), 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) [2023-08-25 17:38:17,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:38:17,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 402 [2023-08-25 17:38:17,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:38:18,022 INFO L124 PetriNetUnfolderBase]: 376/1700 cut-off events. [2023-08-25 17:38:18,023 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:38:18,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2457 conditions, 1700 events. 376/1700 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 10916 event pairs, 336 based on Foata normal form. 0/1615 useless extension candidates. Maximal degree in co-relation 2444. Up to 753 conditions per place. [2023-08-25 17:38:18,032 INFO L140 encePairwiseOnDemand]: 399/402 looper letters, 43 selfloop transitions, 0 changer transitions 0/119 dead transitions. [2023-08-25 17:38:18,032 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 119 transitions, 327 flow [2023-08-25 17:38:18,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 17:38:18,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 17:38:18,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 548 transitions. [2023-08-25 17:38:18,051 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.681592039800995 [2023-08-25 17:38:18,051 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 548 transitions. [2023-08-25 17:38:18,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 548 transitions. [2023-08-25 17:38:18,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:38:18,057 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 548 transitions. [2023-08-25 17:38:18,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 274.0) internal successors, (548), 2 states have internal predecessors, (548), 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) [2023-08-25 17:38:18,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 402.0) internal successors, (1206), 3 states have internal predecessors, (1206), 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) [2023-08-25 17:38:18,067 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 402.0) internal successors, (1206), 3 states have internal predecessors, (1206), 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) [2023-08-25 17:38:18,069 INFO L175 Difference]: Start difference. First operand has 123 places, 122 transitions, 247 flow. Second operand 2 states and 548 transitions. [2023-08-25 17:38:18,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 119 transitions, 327 flow [2023-08-25 17:38:18,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 119 transitions, 326 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:38:18,075 INFO L231 Difference]: Finished difference. Result has 120 places, 119 transitions, 240 flow [2023-08-25 17:38:18,077 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=240, PETRI_PLACES=120, PETRI_TRANSITIONS=119} [2023-08-25 17:38:18,080 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, -3 predicate places. [2023-08-25 17:38:18,080 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 119 transitions, 240 flow [2023-08-25 17:38:18,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 252.0) internal successors, (504), 2 states have internal predecessors, (504), 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) [2023-08-25 17:38:18,081 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:38:18,081 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:38:18,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 17:38:18,082 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 17:38:18,089 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:38:18,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1621363482, now seen corresponding path program 1 times [2023-08-25 17:38:18,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:38:18,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869712759] [2023-08-25 17:38:18,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:38:18,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:38:18,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:38:18,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:38:18,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:38:18,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869712759] [2023-08-25 17:38:18,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869712759] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:38:18,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:38:18,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:38:18,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59451433] [2023-08-25 17:38:18,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:38:18,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:38:18,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:38:18,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:38:18,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:38:18,242 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 402 [2023-08-25 17:38:18,242 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 119 transitions, 240 flow. Second operand has 3 states, 3 states have (on average 216.33333333333334) internal successors, (649), 3 states have internal predecessors, (649), 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) [2023-08-25 17:38:18,242 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:38:18,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 402 [2023-08-25 17:38:18,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:38:18,953 INFO L124 PetriNetUnfolderBase]: 1090/3431 cut-off events. [2023-08-25 17:38:18,954 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:38:18,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5617 conditions, 3431 events. 1090/3431 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 22458 event pairs, 512 based on Foata normal form. 0/3239 useless extension candidates. Maximal degree in co-relation 5614. Up to 1127 conditions per place. [2023-08-25 17:38:18,971 INFO L140 encePairwiseOnDemand]: 396/402 looper letters, 99 selfloop transitions, 4 changer transitions 0/168 dead transitions. [2023-08-25 17:38:18,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 168 transitions, 544 flow [2023-08-25 17:38:18,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:38:18,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:38:18,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 747 transitions. [2023-08-25 17:38:18,974 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6194029850746269 [2023-08-25 17:38:18,974 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 747 transitions. [2023-08-25 17:38:18,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 747 transitions. [2023-08-25 17:38:18,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:38:18,975 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 747 transitions. [2023-08-25 17:38:18,977 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 249.0) internal successors, (747), 3 states have internal predecessors, (747), 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) [2023-08-25 17:38:18,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 402.0) internal successors, (1608), 4 states have internal predecessors, (1608), 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) [2023-08-25 17:38:18,981 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 402.0) internal successors, (1608), 4 states have internal predecessors, (1608), 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) [2023-08-25 17:38:18,981 INFO L175 Difference]: Start difference. First operand has 120 places, 119 transitions, 240 flow. Second operand 3 states and 747 transitions. [2023-08-25 17:38:18,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 168 transitions, 544 flow [2023-08-25 17:38:18,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 168 transitions, 544 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 17:38:18,986 INFO L231 Difference]: Finished difference. Result has 123 places, 121 transitions, 264 flow [2023-08-25 17:38:18,987 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=264, PETRI_PLACES=123, PETRI_TRANSITIONS=121} [2023-08-25 17:38:18,987 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 0 predicate places. [2023-08-25 17:38:18,990 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 121 transitions, 264 flow [2023-08-25 17:38:18,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 216.33333333333334) internal successors, (649), 3 states have internal predecessors, (649), 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) [2023-08-25 17:38:18,991 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:38:18,992 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:38:18,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 17:38:18,995 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 17:38:18,998 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:38:18,998 INFO L85 PathProgramCache]: Analyzing trace with hash -621239689, now seen corresponding path program 1 times [2023-08-25 17:38:19,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:38:19,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501848234] [2023-08-25 17:38:19,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:38:19,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:38:19,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:38:19,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:38:19,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:38:19,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501848234] [2023-08-25 17:38:19,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501848234] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 17:38:19,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840300915] [2023-08-25 17:38:19,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:38:19,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 17:38:19,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 17:38:19,159 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 17:38:19,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-25 17:38:19,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:38:19,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-25 17:38:19,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 17:38:19,326 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:38:19,326 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 17:38:19,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:38:19,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [840300915] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 17:38:19,343 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 17:38:19,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-08-25 17:38:19,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45783509] [2023-08-25 17:38:19,344 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 17:38:19,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:38:19,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:38:19,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:38:19,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:38:19,346 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 402 [2023-08-25 17:38:19,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 121 transitions, 264 flow. Second operand has 6 states, 6 states have (on average 215.83333333333334) internal successors, (1295), 6 states have internal predecessors, (1295), 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) [2023-08-25 17:38:19,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:38:19,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 402 [2023-08-25 17:38:19,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:38:20,829 INFO L124 PetriNetUnfolderBase]: 2161/6967 cut-off events. [2023-08-25 17:38:20,830 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2023-08-25 17:38:20,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11427 conditions, 6967 events. 2161/6967 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 46763 event pairs, 350 based on Foata normal form. 51/6710 useless extension candidates. Maximal degree in co-relation 11422. Up to 1072 conditions per place. [2023-08-25 17:38:20,861 INFO L140 encePairwiseOnDemand]: 395/402 looper letters, 209 selfloop transitions, 11 changer transitions 0/285 dead transitions. [2023-08-25 17:38:20,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 285 transitions, 1042 flow [2023-08-25 17:38:20,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:38:20,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:38:20,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1510 transitions. [2023-08-25 17:38:20,865 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6260364842454395 [2023-08-25 17:38:20,865 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1510 transitions. [2023-08-25 17:38:20,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1510 transitions. [2023-08-25 17:38:20,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:38:20,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1510 transitions. [2023-08-25 17:38:20,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 251.66666666666666) internal successors, (1510), 6 states have internal predecessors, (1510), 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) [2023-08-25 17:38:20,874 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 402.0) internal successors, (2814), 7 states have internal predecessors, (2814), 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) [2023-08-25 17:38:20,875 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 402.0) internal successors, (2814), 7 states have internal predecessors, (2814), 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) [2023-08-25 17:38:20,875 INFO L175 Difference]: Start difference. First operand has 123 places, 121 transitions, 264 flow. Second operand 6 states and 1510 transitions. [2023-08-25 17:38:20,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 285 transitions, 1042 flow [2023-08-25 17:38:20,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 285 transitions, 1038 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:38:20,880 INFO L231 Difference]: Finished difference. Result has 131 places, 127 transitions, 338 flow [2023-08-25 17:38:20,880 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=338, PETRI_PLACES=131, PETRI_TRANSITIONS=127} [2023-08-25 17:38:20,881 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 8 predicate places. [2023-08-25 17:38:20,881 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 127 transitions, 338 flow [2023-08-25 17:38:20,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 215.83333333333334) internal successors, (1295), 6 states have internal predecessors, (1295), 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) [2023-08-25 17:38:20,882 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:38:20,882 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:38:20,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-25 17:38:21,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 17:38:21,090 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 17:38:21,091 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:38:21,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1665303974, now seen corresponding path program 2 times [2023-08-25 17:38:21,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:38:21,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773524826] [2023-08-25 17:38:21,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:38:21,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:38:21,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:38:21,327 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:38:21,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:38:21,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773524826] [2023-08-25 17:38:21,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773524826] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 17:38:21,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120066993] [2023-08-25 17:38:21,327 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 17:38:21,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 17:38:21,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 17:38:21,329 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 17:38:21,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-25 17:38:21,462 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-25 17:38:21,463 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 17:38:21,464 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 19 conjunts are in the unsatisfiable core [2023-08-25 17:38:21,466 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 17:38:21,512 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-25 17:38:21,534 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-25 17:38:21,568 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 17:38:21,570 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-08-25 17:38:21,613 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 17:38:21,613 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-08-25 17:38:21,637 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-25 17:38:21,637 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-25 17:38:21,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120066993] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:38:21,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-25 17:38:21,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 12 [2023-08-25 17:38:21,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869324246] [2023-08-25 17:38:21,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:38:21,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 17:38:21,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:38:21,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 17:38:21,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-08-25 17:38:21,641 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 402 [2023-08-25 17:38:21,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 127 transitions, 338 flow. Second operand has 7 states, 7 states have (on average 137.85714285714286) internal successors, (965), 7 states have internal predecessors, (965), 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) [2023-08-25 17:38:21,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:38:21,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 402 [2023-08-25 17:38:21,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:38:25,553 INFO L124 PetriNetUnfolderBase]: 13237/26841 cut-off events. [2023-08-25 17:38:25,554 INFO L125 PetriNetUnfolderBase]: For 2022/2022 co-relation queries the response was YES. [2023-08-25 17:38:25,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54577 conditions, 26841 events. 13237/26841 cut-off events. For 2022/2022 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 172707 event pairs, 868 based on Foata normal form. 0/22934 useless extension candidates. Maximal degree in co-relation 54569. Up to 22966 conditions per place. [2023-08-25 17:38:25,705 INFO L140 encePairwiseOnDemand]: 358/402 looper letters, 323 selfloop transitions, 151 changer transitions 0/478 dead transitions. [2023-08-25 17:38:25,705 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 478 transitions, 2198 flow [2023-08-25 17:38:25,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 17:38:25,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 17:38:25,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1399 transitions. [2023-08-25 17:38:25,709 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4971570717839375 [2023-08-25 17:38:25,709 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1399 transitions. [2023-08-25 17:38:25,709 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1399 transitions. [2023-08-25 17:38:25,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:38:25,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1399 transitions. [2023-08-25 17:38:25,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 199.85714285714286) internal successors, (1399), 7 states have internal predecessors, (1399), 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) [2023-08-25 17:38:25,717 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 402.0) internal successors, (3216), 8 states have internal predecessors, (3216), 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) [2023-08-25 17:38:25,719 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 402.0) internal successors, (3216), 8 states have internal predecessors, (3216), 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) [2023-08-25 17:38:25,723 INFO L175 Difference]: Start difference. First operand has 131 places, 127 transitions, 338 flow. Second operand 7 states and 1399 transitions. [2023-08-25 17:38:25,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 478 transitions, 2198 flow [2023-08-25 17:38:25,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 478 transitions, 2142 flow, removed 21 selfloop flow, removed 1 redundant places. [2023-08-25 17:38:25,737 INFO L231 Difference]: Finished difference. Result has 141 places, 312 transitions, 1450 flow [2023-08-25 17:38:25,737 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1450, PETRI_PLACES=141, PETRI_TRANSITIONS=312} [2023-08-25 17:38:25,741 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 18 predicate places. [2023-08-25 17:38:25,743 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 312 transitions, 1450 flow [2023-08-25 17:38:25,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 137.85714285714286) internal successors, (965), 7 states have internal predecessors, (965), 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) [2023-08-25 17:38:25,744 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:38:25,745 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:38:25,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-25 17:38:25,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-08-25 17:38:25,950 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 17:38:25,951 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:38:25,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1104611333, now seen corresponding path program 1 times [2023-08-25 17:38:25,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:38:25,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715088767] [2023-08-25 17:38:25,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:38:25,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:38:26,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:38:26,142 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:38:26,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:38:26,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715088767] [2023-08-25 17:38:26,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715088767] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 17:38:26,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1926514760] [2023-08-25 17:38:26,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:38:26,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 17:38:26,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 17:38:26,144 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 17:38:26,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-25 17:38:26,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:38:26,352 INFO L262 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-25 17:38:26,354 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 17:38:26,364 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:38:26,365 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 17:38:26,413 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:38:26,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1926514760] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 17:38:26,414 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 17:38:26,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-08-25 17:38:26,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839444981] [2023-08-25 17:38:26,414 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 17:38:26,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-25 17:38:26,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:38:26,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-25 17:38:26,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-08-25 17:38:26,417 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 402 [2023-08-25 17:38:26,420 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 312 transitions, 1450 flow. Second operand has 12 states, 12 states have (on average 215.5) internal successors, (2586), 12 states have internal predecessors, (2586), 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) [2023-08-25 17:38:26,420 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:38:26,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 402 [2023-08-25 17:38:26,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:38:33,157 INFO L124 PetriNetUnfolderBase]: 8877/25928 cut-off events. [2023-08-25 17:38:33,157 INFO L125 PetriNetUnfolderBase]: For 6456/6815 co-relation queries the response was YES. [2023-08-25 17:38:33,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59565 conditions, 25928 events. 8877/25928 cut-off events. For 6456/6815 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 182505 event pairs, 406 based on Foata normal form. 163/25401 useless extension candidates. Maximal degree in co-relation 59551. Up to 9279 conditions per place. [2023-08-25 17:38:33,393 INFO L140 encePairwiseOnDemand]: 395/402 looper letters, 1063 selfloop transitions, 23 changer transitions 0/1279 dead transitions. [2023-08-25 17:38:33,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 1279 transitions, 7754 flow [2023-08-25 17:38:33,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 17:38:33,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 17:38:33,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3094 transitions. [2023-08-25 17:38:33,400 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6413764510779436 [2023-08-25 17:38:33,400 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 3094 transitions. [2023-08-25 17:38:33,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 3094 transitions. [2023-08-25 17:38:33,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:38:33,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 3094 transitions. [2023-08-25 17:38:33,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 257.8333333333333) internal successors, (3094), 12 states have internal predecessors, (3094), 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) [2023-08-25 17:38:33,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 402.0) internal successors, (5226), 13 states have internal predecessors, (5226), 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) [2023-08-25 17:38:33,417 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 402.0) internal successors, (5226), 13 states have internal predecessors, (5226), 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) [2023-08-25 17:38:33,417 INFO L175 Difference]: Start difference. First operand has 141 places, 312 transitions, 1450 flow. Second operand 12 states and 3094 transitions. [2023-08-25 17:38:33,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 1279 transitions, 7754 flow [2023-08-25 17:38:33,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 1279 transitions, 7754 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 17:38:33,512 INFO L231 Difference]: Finished difference. Result has 159 places, 325 transitions, 1632 flow [2023-08-25 17:38:33,512 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=1450, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1632, PETRI_PLACES=159, PETRI_TRANSITIONS=325} [2023-08-25 17:38:33,514 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 36 predicate places. [2023-08-25 17:38:33,514 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 325 transitions, 1632 flow [2023-08-25 17:38:33,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 215.5) internal successors, (2586), 12 states have internal predecessors, (2586), 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) [2023-08-25 17:38:33,516 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:38:33,516 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:38:33,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-25 17:38:33,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 17:38:33,721 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 17:38:33,722 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:38:33,722 INFO L85 PathProgramCache]: Analyzing trace with hash 2058752731, now seen corresponding path program 2 times [2023-08-25 17:38:33,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:38:33,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566246869] [2023-08-25 17:38:33,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:38:33,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:38:33,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:38:34,790 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 17:38:34,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:38:34,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566246869] [2023-08-25 17:38:34,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566246869] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:38:34,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:38:34,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:38:34,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602846963] [2023-08-25 17:38:34,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:38:34,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:38:34,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:38:34,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:38:34,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:38:34,793 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 402 [2023-08-25 17:38:34,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 325 transitions, 1632 flow. Second operand has 6 states, 6 states have (on average 131.16666666666666) internal successors, (787), 6 states have internal predecessors, (787), 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) [2023-08-25 17:38:34,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:38:34,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 402 [2023-08-25 17:38:34,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:38:49,394 INFO L124 PetriNetUnfolderBase]: 34653/71011 cut-off events. [2023-08-25 17:38:49,394 INFO L125 PetriNetUnfolderBase]: For 25885/25885 co-relation queries the response was YES. [2023-08-25 17:38:49,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178207 conditions, 71011 events. 34653/71011 cut-off events. For 25885/25885 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 460356 event pairs, 13060 based on Foata normal form. 0/62288 useless extension candidates. Maximal degree in co-relation 178186. Up to 66402 conditions per place. [2023-08-25 17:38:49,903 INFO L140 encePairwiseOnDemand]: 372/402 looper letters, 407 selfloop transitions, 109 changer transitions 0/520 dead transitions. [2023-08-25 17:38:49,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 520 transitions, 3154 flow [2023-08-25 17:38:49,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:38:49,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:38:49,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1078 transitions. [2023-08-25 17:38:49,906 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4469320066334992 [2023-08-25 17:38:49,906 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1078 transitions. [2023-08-25 17:38:49,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1078 transitions. [2023-08-25 17:38:49,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:38:49,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1078 transitions. [2023-08-25 17:38:49,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 179.66666666666666) internal successors, (1078), 6 states have internal predecessors, (1078), 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) [2023-08-25 17:38:49,912 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 402.0) internal successors, (2814), 7 states have internal predecessors, (2814), 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) [2023-08-25 17:38:49,913 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 402.0) internal successors, (2814), 7 states have internal predecessors, (2814), 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) [2023-08-25 17:38:49,913 INFO L175 Difference]: Start difference. First operand has 159 places, 325 transitions, 1632 flow. Second operand 6 states and 1078 transitions. [2023-08-25 17:38:49,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 520 transitions, 3154 flow [2023-08-25 17:38:50,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 520 transitions, 3128 flow, removed 7 selfloop flow, removed 3 redundant places. [2023-08-25 17:38:50,101 INFO L231 Difference]: Finished difference. Result has 165 places, 428 transitions, 2261 flow [2023-08-25 17:38:50,101 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=1606, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2261, PETRI_PLACES=165, PETRI_TRANSITIONS=428} [2023-08-25 17:38:50,102 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 42 predicate places. [2023-08-25 17:38:50,102 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 428 transitions, 2261 flow [2023-08-25 17:38:50,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 131.16666666666666) internal successors, (787), 6 states have internal predecessors, (787), 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) [2023-08-25 17:38:50,102 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:38:50,102 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:38:50,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 17:38:50,103 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 17:38:50,103 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:38:50,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1375590774, now seen corresponding path program 1 times [2023-08-25 17:38:50,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:38:50,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955733197] [2023-08-25 17:38:50,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:38:50,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:38:50,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:38:51,580 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 17:38:51,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:38:51,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955733197] [2023-08-25 17:38:51,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955733197] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:38:51,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:38:51,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 17:38:51,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52229586] [2023-08-25 17:38:51,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:38:51,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 17:38:51,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:38:51,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 17:38:51,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-25 17:38:51,583 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 402 [2023-08-25 17:38:51,584 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 428 transitions, 2261 flow. Second operand has 9 states, 9 states have (on average 120.0) internal successors, (1080), 9 states have internal predecessors, (1080), 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) [2023-08-25 17:38:51,584 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:38:51,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 402 [2023-08-25 17:38:51,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:39:19,506 INFO L124 PetriNetUnfolderBase]: 67193/136752 cut-off events. [2023-08-25 17:39:19,506 INFO L125 PetriNetUnfolderBase]: For 71258/71378 co-relation queries the response was YES. [2023-08-25 17:39:20,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 392282 conditions, 136752 events. 67193/136752 cut-off events. For 71258/71378 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 1015927 event pairs, 3421 based on Foata normal form. 120/119814 useless extension candidates. Maximal degree in co-relation 392256. Up to 63510 conditions per place. [2023-08-25 17:39:20,627 INFO L140 encePairwiseOnDemand]: 364/402 looper letters, 997 selfloop transitions, 157 changer transitions 1/1159 dead transitions. [2023-08-25 17:39:20,628 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 1159 transitions, 8237 flow [2023-08-25 17:39:20,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-25 17:39:20,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-25 17:39:20,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2175 transitions. [2023-08-25 17:39:20,633 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4161882893226177 [2023-08-25 17:39:20,634 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2175 transitions. [2023-08-25 17:39:20,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2175 transitions. [2023-08-25 17:39:20,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:39:20,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2175 transitions. [2023-08-25 17:39:20,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 167.30769230769232) internal successors, (2175), 13 states have internal predecessors, (2175), 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) [2023-08-25 17:39:20,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 402.0) internal successors, (5628), 14 states have internal predecessors, (5628), 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) [2023-08-25 17:39:20,647 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 402.0) internal successors, (5628), 14 states have internal predecessors, (5628), 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) [2023-08-25 17:39:20,647 INFO L175 Difference]: Start difference. First operand has 165 places, 428 transitions, 2261 flow. Second operand 13 states and 2175 transitions. [2023-08-25 17:39:20,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 1159 transitions, 8237 flow [2023-08-25 17:39:21,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 1159 transitions, 8165 flow, removed 36 selfloop flow, removed 0 redundant places. [2023-08-25 17:39:21,846 INFO L231 Difference]: Finished difference. Result has 188 places, 585 transitions, 4179 flow [2023-08-25 17:39:21,846 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=2237, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4179, PETRI_PLACES=188, PETRI_TRANSITIONS=585} [2023-08-25 17:39:21,847 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 65 predicate places. [2023-08-25 17:39:21,847 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 585 transitions, 4179 flow [2023-08-25 17:39:21,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 120.0) internal successors, (1080), 9 states have internal predecessors, (1080), 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) [2023-08-25 17:39:21,847 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:39:21,847 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:39:21,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 17:39:21,848 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 17:39:21,848 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:39:21,848 INFO L85 PathProgramCache]: Analyzing trace with hash 869726804, now seen corresponding path program 2 times [2023-08-25 17:39:21,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:39:21,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235481298] [2023-08-25 17:39:21,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:39:21,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:39:21,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:39:22,868 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 17:39:22,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:39:22,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235481298] [2023-08-25 17:39:22,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235481298] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:39:22,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:39:22,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 17:39:22,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240936236] [2023-08-25 17:39:22,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:39:22,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 17:39:22,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:39:22,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 17:39:22,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-25 17:39:22,871 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 402 [2023-08-25 17:39:22,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 585 transitions, 4179 flow. Second operand has 9 states, 9 states have (on average 120.0) internal successors, (1080), 9 states have internal predecessors, (1080), 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) [2023-08-25 17:39:22,872 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:39:22,872 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 402 [2023-08-25 17:39:22,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:39:54,812 INFO L124 PetriNetUnfolderBase]: 67033/136542 cut-off events. [2023-08-25 17:39:54,812 INFO L125 PetriNetUnfolderBase]: For 126448/126508 co-relation queries the response was YES. [2023-08-25 17:39:55,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 420972 conditions, 136542 events. 67033/136542 cut-off events. For 126448/126508 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 1013605 event pairs, 5234 based on Foata normal form. 60/119744 useless extension candidates. Maximal degree in co-relation 420934. Up to 70748 conditions per place. [2023-08-25 17:39:55,903 INFO L140 encePairwiseOnDemand]: 362/402 looper letters, 970 selfloop transitions, 168 changer transitions 2/1144 dead transitions. [2023-08-25 17:39:55,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 1144 transitions, 9236 flow [2023-08-25 17:39:55,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-25 17:39:55,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-25 17:39:55,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2239 transitions. [2023-08-25 17:39:55,909 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39783226723525233 [2023-08-25 17:39:55,909 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2239 transitions. [2023-08-25 17:39:55,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2239 transitions. [2023-08-25 17:39:55,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:39:55,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2239 transitions. [2023-08-25 17:39:55,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 159.92857142857142) internal successors, (2239), 14 states have internal predecessors, (2239), 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) [2023-08-25 17:39:55,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 402.0) internal successors, (6030), 15 states have internal predecessors, (6030), 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) [2023-08-25 17:39:55,922 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 402.0) internal successors, (6030), 15 states have internal predecessors, (6030), 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) [2023-08-25 17:39:55,922 INFO L175 Difference]: Start difference. First operand has 188 places, 585 transitions, 4179 flow. Second operand 14 states and 2239 transitions. [2023-08-25 17:39:55,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 1144 transitions, 9236 flow [2023-08-25 17:39:59,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 1144 transitions, 9236 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 17:39:59,619 INFO L231 Difference]: Finished difference. Result has 211 places, 628 transitions, 5307 flow [2023-08-25 17:39:59,620 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=4179, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=585, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=5307, PETRI_PLACES=211, PETRI_TRANSITIONS=628} [2023-08-25 17:39:59,620 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 88 predicate places. [2023-08-25 17:39:59,620 INFO L495 AbstractCegarLoop]: Abstraction has has 211 places, 628 transitions, 5307 flow [2023-08-25 17:39:59,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 120.0) internal successors, (1080), 9 states have internal predecessors, (1080), 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) [2023-08-25 17:39:59,621 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:39:59,621 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:39:59,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 17:39:59,621 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 17:39:59,621 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:39:59,622 INFO L85 PathProgramCache]: Analyzing trace with hash -367352326, now seen corresponding path program 1 times [2023-08-25 17:39:59,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:39:59,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483015293] [2023-08-25 17:39:59,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:39:59,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:39:59,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:40:00,603 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 17:40:00,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:40:00,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483015293] [2023-08-25 17:40:00,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483015293] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:40:00,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:40:00,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 17:40:00,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117230436] [2023-08-25 17:40:00,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:40:00,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 17:40:00,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:40:00,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 17:40:00,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-08-25 17:40:00,606 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 402 [2023-08-25 17:40:00,613 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 628 transitions, 5307 flow. Second operand has 9 states, 9 states have (on average 118.0) internal successors, (1062), 9 states have internal predecessors, (1062), 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) [2023-08-25 17:40:00,613 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:40:00,613 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 402 [2023-08-25 17:40:00,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:40:39,786 INFO L124 PetriNetUnfolderBase]: 67183/137613 cut-off events. [2023-08-25 17:40:39,786 INFO L125 PetriNetUnfolderBase]: For 187340/187362 co-relation queries the response was YES. [2023-08-25 17:40:40,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 443142 conditions, 137613 events. 67183/137613 cut-off events. For 187340/187362 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 1013126 event pairs, 35142 based on Foata normal form. 22/120726 useless extension candidates. Maximal degree in co-relation 443093. Up to 128430 conditions per place. [2023-08-25 17:40:41,389 INFO L140 encePairwiseOnDemand]: 369/402 looper letters, 637 selfloop transitions, 154 changer transitions 1/796 dead transitions. [2023-08-25 17:40:41,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 796 transitions, 7633 flow [2023-08-25 17:40:41,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 17:40:41,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 17:40:41,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1295 transitions. [2023-08-25 17:40:41,393 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4026741293532338 [2023-08-25 17:40:41,393 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1295 transitions. [2023-08-25 17:40:41,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1295 transitions. [2023-08-25 17:40:41,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:40:41,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1295 transitions. [2023-08-25 17:40:41,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 161.875) internal successors, (1295), 8 states have internal predecessors, (1295), 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) [2023-08-25 17:40:41,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 402.0) internal successors, (3618), 9 states have internal predecessors, (3618), 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) [2023-08-25 17:40:41,400 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 402.0) internal successors, (3618), 9 states have internal predecessors, (3618), 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) [2023-08-25 17:40:41,400 INFO L175 Difference]: Start difference. First operand has 211 places, 628 transitions, 5307 flow. Second operand 8 states and 1295 transitions. [2023-08-25 17:40:41,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 796 transitions, 7633 flow [2023-08-25 17:40:45,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 796 transitions, 7145 flow, removed 175 selfloop flow, removed 1 redundant places. [2023-08-25 17:40:45,526 INFO L231 Difference]: Finished difference. Result has 219 places, 633 transitions, 5248 flow [2023-08-25 17:40:45,526 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=4853, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=628, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=149, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=475, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5248, PETRI_PLACES=219, PETRI_TRANSITIONS=633} [2023-08-25 17:40:45,527 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 96 predicate places. [2023-08-25 17:40:45,527 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 633 transitions, 5248 flow [2023-08-25 17:40:45,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 118.0) internal successors, (1062), 9 states have internal predecessors, (1062), 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) [2023-08-25 17:40:45,527 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:40:45,527 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:40:45,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 17:40:45,528 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 17:40:45,528 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:40:45,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1605052882, now seen corresponding path program 2 times [2023-08-25 17:40:45,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:40:45,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863286880] [2023-08-25 17:40:45,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:40:45,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:40:45,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:40:46,490 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 17:40:46,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:40:46,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863286880] [2023-08-25 17:40:46,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863286880] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:40:46,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:40:46,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 17:40:46,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411363830] [2023-08-25 17:40:46,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:40:46,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 17:40:46,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:40:46,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 17:40:46,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-25 17:40:46,494 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 402 [2023-08-25 17:40:46,494 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 633 transitions, 5248 flow. Second operand has 9 states, 9 states have (on average 118.0) internal successors, (1062), 9 states have internal predecessors, (1062), 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) [2023-08-25 17:40:46,494 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:40:46,495 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 402 [2023-08-25 17:40:46,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:41:19,896 INFO L124 PetriNetUnfolderBase]: 68063/138562 cut-off events. [2023-08-25 17:41:19,896 INFO L125 PetriNetUnfolderBase]: For 159121/159201 co-relation queries the response was YES. [2023-08-25 17:41:21,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 452441 conditions, 138562 events. 68063/138562 cut-off events. For 159121/159201 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 1031298 event pairs, 4714 based on Foata normal form. 80/121724 useless extension candidates. Maximal degree in co-relation 452390. Up to 70768 conditions per place. [2023-08-25 17:41:21,528 INFO L140 encePairwiseOnDemand]: 375/402 looper letters, 977 selfloop transitions, 123 changer transitions 2/1106 dead transitions. [2023-08-25 17:41:21,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 1106 transitions, 9975 flow [2023-08-25 17:41:21,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 17:41:21,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 17:41:21,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1654 transitions. [2023-08-25 17:41:21,533 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41144278606965173 [2023-08-25 17:41:21,533 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1654 transitions. [2023-08-25 17:41:21,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1654 transitions. [2023-08-25 17:41:21,533 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:41:21,534 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1654 transitions. [2023-08-25 17:41:21,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 165.4) internal successors, (1654), 10 states have internal predecessors, (1654), 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) [2023-08-25 17:41:21,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 402.0) internal successors, (4422), 11 states have internal predecessors, (4422), 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) [2023-08-25 17:41:21,541 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 402.0) internal successors, (4422), 11 states have internal predecessors, (4422), 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) [2023-08-25 17:41:21,541 INFO L175 Difference]: Start difference. First operand has 219 places, 633 transitions, 5248 flow. Second operand 10 states and 1654 transitions. [2023-08-25 17:41:21,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 1106 transitions, 9975 flow [2023-08-25 17:41:26,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 1106 transitions, 9533 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 17:41:26,416 INFO L231 Difference]: Finished difference. Result has 229 places, 735 transitions, 6274 flow [2023-08-25 17:41:26,416 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=4979, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=633, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=519, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6274, PETRI_PLACES=229, PETRI_TRANSITIONS=735} [2023-08-25 17:41:26,417 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 106 predicate places. [2023-08-25 17:41:26,417 INFO L495 AbstractCegarLoop]: Abstraction has has 229 places, 735 transitions, 6274 flow [2023-08-25 17:41:26,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 118.0) internal successors, (1062), 9 states have internal predecessors, (1062), 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) [2023-08-25 17:41:26,418 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:41:26,418 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:41:26,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 17:41:26,418 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 17:41:26,418 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:41:26,418 INFO L85 PathProgramCache]: Analyzing trace with hash 11992814, now seen corresponding path program 3 times [2023-08-25 17:41:26,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:41:26,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642033150] [2023-08-25 17:41:26,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:41:26,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:41:26,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:41:27,381 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 17:41:27,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:41:27,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642033150] [2023-08-25 17:41:27,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642033150] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:41:27,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:41:27,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 17:41:27,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572451122] [2023-08-25 17:41:27,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:41:27,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 17:41:27,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:41:27,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 17:41:27,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-25 17:41:27,384 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 402 [2023-08-25 17:41:27,385 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 735 transitions, 6274 flow. Second operand has 9 states, 9 states have (on average 118.0) internal successors, (1062), 9 states have internal predecessors, (1062), 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) [2023-08-25 17:41:27,385 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:41:27,385 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 402 [2023-08-25 17:41:27,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:42:09,071 INFO L124 PetriNetUnfolderBase]: 68403/140053 cut-off events. [2023-08-25 17:42:09,071 INFO L125 PetriNetUnfolderBase]: For 222196/222238 co-relation queries the response was YES. [2023-08-25 17:42:10,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 474299 conditions, 140053 events. 68403/140053 cut-off events. For 222196/222238 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 1034121 event pairs, 35182 based on Foata normal form. 42/123116 useless extension candidates. Maximal degree in co-relation 474242. Up to 130150 conditions per place. [2023-08-25 17:42:10,977 INFO L140 encePairwiseOnDemand]: 369/402 looper letters, 675 selfloop transitions, 243 changer transitions 1/923 dead transitions. [2023-08-25 17:42:10,977 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 923 transitions, 8990 flow [2023-08-25 17:42:10,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 17:42:10,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 17:42:10,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1427 transitions. [2023-08-25 17:42:10,980 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39441680486456604 [2023-08-25 17:42:10,980 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1427 transitions. [2023-08-25 17:42:10,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1427 transitions. [2023-08-25 17:42:10,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:42:10,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1427 transitions. [2023-08-25 17:42:10,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 158.55555555555554) internal successors, (1427), 9 states have internal predecessors, (1427), 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) [2023-08-25 17:42:10,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 402.0) internal successors, (4020), 10 states have internal predecessors, (4020), 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) [2023-08-25 17:42:10,988 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 402.0) internal successors, (4020), 10 states have internal predecessors, (4020), 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) [2023-08-25 17:42:10,988 INFO L175 Difference]: Start difference. First operand has 229 places, 735 transitions, 6274 flow. Second operand 9 states and 1427 transitions. [2023-08-25 17:42:10,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 923 transitions, 8990 flow [2023-08-25 17:42:16,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 923 transitions, 8968 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-25 17:42:16,113 INFO L231 Difference]: Finished difference. Result has 239 places, 748 transitions, 7040 flow [2023-08-25 17:42:16,114 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=6252, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=735, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=230, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=495, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7040, PETRI_PLACES=239, PETRI_TRANSITIONS=748} [2023-08-25 17:42:16,114 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 116 predicate places. [2023-08-25 17:42:16,114 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 748 transitions, 7040 flow [2023-08-25 17:42:16,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 118.0) internal successors, (1062), 9 states have internal predecessors, (1062), 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) [2023-08-25 17:42:16,115 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:42:16,115 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:42:16,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 17:42:16,115 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 17:42:16,115 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:42:16,115 INFO L85 PathProgramCache]: Analyzing trace with hash -800353708, now seen corresponding path program 3 times [2023-08-25 17:42:16,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:42:16,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707623066] [2023-08-25 17:42:16,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:42:16,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:42:16,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:42:17,058 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 17:42:17,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:42:17,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707623066] [2023-08-25 17:42:17,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707623066] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:42:17,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:42:17,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 17:42:17,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191785466] [2023-08-25 17:42:17,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:42:17,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 17:42:17,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:42:17,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 17:42:17,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-08-25 17:42:17,060 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 402 [2023-08-25 17:42:17,061 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 748 transitions, 7040 flow. Second operand has 9 states, 9 states have (on average 120.0) internal successors, (1080), 9 states have internal predecessors, (1080), 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) [2023-08-25 17:42:17,061 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:42:17,061 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 402 [2023-08-25 17:42:17,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand