/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 PROGRAM_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/weaver/chl-sre-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 08:58:03,323 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 08:58:03,387 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 [2023-08-26 08:58:03,397 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 08:58:03,398 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 08:58:03,431 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 08:58:03,431 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 08:58:03,432 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 08:58:03,432 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 08:58:03,436 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 08:58:03,436 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 08:58:03,436 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 08:58:03,436 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 08:58:03,437 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 08:58:03,438 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 08:58:03,438 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 08:58:03,438 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 08:58:03,438 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 08:58:03,438 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 08:58:03,439 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 08:58:03,439 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 08:58:03,440 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 08:58:03,440 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 08:58:03,440 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 08:58:03,440 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 08:58:03,441 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 08:58:03,441 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 08:58:03,441 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 08:58:03,441 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 08:58:03,442 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 08:58:03,442 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 08:58:03,443 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 08:58:03,443 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 08:58:03,443 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 08:58:03,443 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 08:58:03,443 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 08:58:03,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 08:58:03,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 08:58:03,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 08:58:03,741 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 08:58:03,741 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 08:58:03,742 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-sre-trans.wvr.c [2023-08-26 08:58:04,873 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 08:58:05,016 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 08:58:05,017 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-trans.wvr.c [2023-08-26 08:58:05,025 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c34bdd37/a3d6f729852f446a957ab40103e73482/FLAGb2a6cab5e [2023-08-26 08:58:05,038 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c34bdd37/a3d6f729852f446a957ab40103e73482 [2023-08-26 08:58:05,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 08:58:05,041 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 08:58:05,042 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 08:58:05,042 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 08:58:05,045 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 08:58:05,045 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:58:05" (1/1) ... [2023-08-26 08:58:05,046 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@235d1a62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:58:05, skipping insertion in model container [2023-08-26 08:58:05,046 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:58:05" (1/1) ... [2023-08-26 08:58:05,063 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 08:58:05,217 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 08:58:05,225 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 08:58:05,262 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 08:58:05,277 INFO L206 MainTranslator]: Completed translation [2023-08-26 08:58:05,277 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:58:05 WrapperNode [2023-08-26 08:58:05,278 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 08:58:05,279 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 08:58:05,279 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 08:58:05,279 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 08:58:05,285 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:58:05" (1/1) ... [2023-08-26 08:58:05,292 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:58:05" (1/1) ... [2023-08-26 08:58:05,312 INFO L138 Inliner]: procedures = 22, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 116 [2023-08-26 08:58:05,312 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 08:58:05,313 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 08:58:05,313 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 08:58:05,313 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 08:58:05,320 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:58:05" (1/1) ... [2023-08-26 08:58:05,321 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:58:05" (1/1) ... [2023-08-26 08:58:05,324 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:58:05" (1/1) ... [2023-08-26 08:58:05,324 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:58:05" (1/1) ... [2023-08-26 08:58:05,332 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:58:05" (1/1) ... [2023-08-26 08:58:05,334 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:58:05" (1/1) ... [2023-08-26 08:58:05,336 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:58:05" (1/1) ... [2023-08-26 08:58:05,337 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:58:05" (1/1) ... [2023-08-26 08:58:05,339 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 08:58:05,339 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 08:58:05,340 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 08:58:05,340 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 08:58:05,340 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:58:05" (1/1) ... [2023-08-26 08:58:05,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 08:58:05,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 08:58:05,367 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) [2023-08-26 08:58:05,380 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 [2023-08-26 08:58:05,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 08:58:05,407 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-26 08:58:05,407 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-26 08:58:05,407 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-26 08:58:05,407 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-26 08:58:05,407 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-26 08:58:05,408 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-26 08:58:05,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 08:58:05,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 08:58:05,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 08:58:05,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 08:58:05,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 08:58:05,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 08:58:05,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 08:58:05,410 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 08:58:05,514 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 08:58:05,518 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 08:58:05,792 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 08:58:05,800 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 08:58:05,801 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 08:58:05,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:58:05 BoogieIcfgContainer [2023-08-26 08:58:05,803 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 08:58:05,806 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 08:58:05,806 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 08:58:05,808 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 08:58:05,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 08:58:05" (1/3) ... [2023-08-26 08:58:05,809 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74444570 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:58:05, skipping insertion in model container [2023-08-26 08:58:05,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:58:05" (2/3) ... [2023-08-26 08:58:05,809 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74444570 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:58:05, skipping insertion in model container [2023-08-26 08:58:05,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:58:05" (3/3) ... [2023-08-26 08:58:05,810 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-sre-trans.wvr.c [2023-08-26 08:58:05,825 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 08:58:05,825 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-08-26 08:58:05,825 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 08:58:05,909 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-26 08:58:05,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 194 transitions, 412 flow [2023-08-26 08:58:06,002 INFO L124 PetriNetUnfolderBase]: 6/191 cut-off events. [2023-08-26 08:58:06,003 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-26 08:58:06,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 191 events. 6/191 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 268 event pairs, 0 based on Foata normal form. 0/163 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2023-08-26 08:58:06,011 INFO L82 GeneralOperation]: Start removeDead. Operand has 198 places, 194 transitions, 412 flow [2023-08-26 08:58:06,016 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 184 places, 180 transitions, 378 flow [2023-08-26 08:58:06,019 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 08:58:06,033 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 184 places, 180 transitions, 378 flow [2023-08-26 08:58:06,039 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 184 places, 180 transitions, 378 flow [2023-08-26 08:58:06,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 184 places, 180 transitions, 378 flow [2023-08-26 08:58:06,077 INFO L124 PetriNetUnfolderBase]: 6/180 cut-off events. [2023-08-26 08:58:06,080 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-26 08:58:06,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 180 events. 6/180 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 265 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2023-08-26 08:58:06,086 INFO L119 LiptonReduction]: Number of co-enabled transitions 6072 [2023-08-26 08:58:10,126 INFO L134 LiptonReduction]: Checked pairs total: 21243 [2023-08-26 08:58:10,126 INFO L136 LiptonReduction]: Total number of compositions: 167 [2023-08-26 08:58:10,138 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 08:58:10,143 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;@1fce6f5f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 08:58:10,144 INFO L358 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2023-08-26 08:58:10,145 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 08:58:10,145 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-26 08:58:10,145 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 08:58:10,145 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:58:10,146 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 08:58:10,146 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-26 08:58:10,150 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:58:10,150 INFO L85 PathProgramCache]: Analyzing trace with hash 677, now seen corresponding path program 1 times [2023-08-26 08:58:10,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:58:10,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464148670] [2023-08-26 08:58:10,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:58:10,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:58:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:58:10,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:58:10,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:58:10,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464148670] [2023-08-26 08:58:10,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464148670] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:58:10,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:58:10,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-26 08:58:10,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023324951] [2023-08-26 08:58:10,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:58:10,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 08:58:10,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:58:10,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 08:58:10,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 08:58:10,266 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 361 [2023-08-26 08:58:10,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 58 transitions, 134 flow. Second operand has 2 states, 2 states have (on average 186.5) internal successors, (373), 2 states have internal predecessors, (373), 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) [2023-08-26 08:58:10,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:58:10,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 361 [2023-08-26 08:58:10,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:58:10,404 INFO L124 PetriNetUnfolderBase]: 465/768 cut-off events. [2023-08-26 08:58:10,404 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2023-08-26 08:58:10,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1512 conditions, 768 events. 465/768 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 4025 event pairs, 333 based on Foata normal form. 0/585 useless extension candidates. Maximal degree in co-relation 1252. Up to 677 conditions per place. [2023-08-26 08:58:10,412 INFO L140 encePairwiseOnDemand]: 350/361 looper letters, 25 selfloop transitions, 0 changer transitions 0/47 dead transitions. [2023-08-26 08:58:10,412 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 47 transitions, 162 flow [2023-08-26 08:58:10,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 08:58:10,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 08:58:10,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 408 transitions. [2023-08-26 08:58:10,430 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5650969529085873 [2023-08-26 08:58:10,431 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 408 transitions. [2023-08-26 08:58:10,431 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 408 transitions. [2023-08-26 08:58:10,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:58:10,436 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 408 transitions. [2023-08-26 08:58:10,439 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 204.0) internal successors, (408), 2 states have internal predecessors, (408), 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) [2023-08-26 08:58:10,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 361.0) internal successors, (1083), 3 states have internal predecessors, (1083), 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) [2023-08-26 08:58:10,444 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 361.0) internal successors, (1083), 3 states have internal predecessors, (1083), 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) [2023-08-26 08:58:10,446 INFO L175 Difference]: Start difference. First operand has 65 places, 58 transitions, 134 flow. Second operand 2 states and 408 transitions. [2023-08-26 08:58:10,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 47 transitions, 162 flow [2023-08-26 08:58:10,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 47 transitions, 150 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-26 08:58:10,453 INFO L231 Difference]: Finished difference. Result has 49 places, 47 transitions, 100 flow [2023-08-26 08:58:10,455 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=100, PETRI_PLACES=49, PETRI_TRANSITIONS=47} [2023-08-26 08:58:10,461 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, -16 predicate places. [2023-08-26 08:58:10,461 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 47 transitions, 100 flow [2023-08-26 08:58:10,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 186.5) internal successors, (373), 2 states have internal predecessors, (373), 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) [2023-08-26 08:58:10,462 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:58:10,462 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-26 08:58:10,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 08:58:10,463 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-26 08:58:10,470 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:58:10,470 INFO L85 PathProgramCache]: Analyzing trace with hash 20732249, now seen corresponding path program 1 times [2023-08-26 08:58:10,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:58:10,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987146393] [2023-08-26 08:58:10,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:58:10,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:58:10,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:58:10,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:58:10,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:58:10,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987146393] [2023-08-26 08:58:10,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987146393] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:58:10,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:58:10,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:58:10,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71113679] [2023-08-26 08:58:10,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:58:10,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:58:10,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:58:10,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:58:10,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:58:10,583 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 361 [2023-08-26 08:58:10,584 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 47 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 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) [2023-08-26 08:58:10,584 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:58:10,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 361 [2023-08-26 08:58:10,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:58:10,796 INFO L124 PetriNetUnfolderBase]: 937/1597 cut-off events. [2023-08-26 08:58:10,796 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2023-08-26 08:58:10,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2979 conditions, 1597 events. 937/1597 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 9265 event pairs, 477 based on Foata normal form. 0/1370 useless extension candidates. Maximal degree in co-relation 2976. Up to 1316 conditions per place. [2023-08-26 08:58:10,807 INFO L140 encePairwiseOnDemand]: 357/361 looper letters, 38 selfloop transitions, 2 changer transitions 0/56 dead transitions. [2023-08-26 08:58:10,807 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 56 transitions, 200 flow [2023-08-26 08:58:10,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:58:10,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:58:10,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 573 transitions. [2023-08-26 08:58:10,810 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5290858725761773 [2023-08-26 08:58:10,810 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 573 transitions. [2023-08-26 08:58:10,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 573 transitions. [2023-08-26 08:58:10,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:58:10,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 573 transitions. [2023-08-26 08:58:10,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 191.0) internal successors, (573), 3 states have internal predecessors, (573), 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) [2023-08-26 08:58:10,816 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 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) [2023-08-26 08:58:10,817 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 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) [2023-08-26 08:58:10,817 INFO L175 Difference]: Start difference. First operand has 49 places, 47 transitions, 100 flow. Second operand 3 states and 573 transitions. [2023-08-26 08:58:10,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 56 transitions, 200 flow [2023-08-26 08:58:10,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 56 transitions, 200 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:58:10,820 INFO L231 Difference]: Finished difference. Result has 50 places, 47 transitions, 110 flow [2023-08-26 08:58:10,820 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=50, PETRI_TRANSITIONS=47} [2023-08-26 08:58:10,821 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, -15 predicate places. [2023-08-26 08:58:10,821 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 47 transitions, 110 flow [2023-08-26 08:58:10,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 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) [2023-08-26 08:58:10,822 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:58:10,822 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-26 08:58:10,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 08:58:10,823 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-26 08:58:10,827 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:58:10,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1551131045, now seen corresponding path program 1 times [2023-08-26 08:58:10,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:58:10,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027468016] [2023-08-26 08:58:10,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:58:10,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:58:10,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:58:10,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:58:10,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:58:10,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027468016] [2023-08-26 08:58:10,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027468016] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:58:10,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:58:10,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:58:10,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345681885] [2023-08-26 08:58:10,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:58:10,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:58:10,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:58:10,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:58:10,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:58:10,904 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 361 [2023-08-26 08:58:10,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 47 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 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) [2023-08-26 08:58:10,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:58:10,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 361 [2023-08-26 08:58:10,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:58:11,068 INFO L124 PetriNetUnfolderBase]: 1048/1657 cut-off events. [2023-08-26 08:58:11,068 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2023-08-26 08:58:11,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3224 conditions, 1657 events. 1048/1657 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 9299 event pairs, 502 based on Foata normal form. 0/1437 useless extension candidates. Maximal degree in co-relation 3220. Up to 1485 conditions per place. [2023-08-26 08:58:11,079 INFO L140 encePairwiseOnDemand]: 356/361 looper letters, 38 selfloop transitions, 2 changer transitions 0/55 dead transitions. [2023-08-26 08:58:11,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 55 transitions, 208 flow [2023-08-26 08:58:11,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:58:11,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:58:11,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 565 transitions. [2023-08-26 08:58:11,081 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5216989843028624 [2023-08-26 08:58:11,082 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 565 transitions. [2023-08-26 08:58:11,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 565 transitions. [2023-08-26 08:58:11,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:58:11,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 565 transitions. [2023-08-26 08:58:11,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:58:11,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 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) [2023-08-26 08:58:11,086 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 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) [2023-08-26 08:58:11,086 INFO L175 Difference]: Start difference. First operand has 50 places, 47 transitions, 110 flow. Second operand 3 states and 565 transitions. [2023-08-26 08:58:11,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 55 transitions, 208 flow [2023-08-26 08:58:11,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 55 transitions, 208 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:58:11,089 INFO L231 Difference]: Finished difference. Result has 50 places, 46 transitions, 118 flow [2023-08-26 08:58:11,090 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=50, PETRI_TRANSITIONS=46} [2023-08-26 08:58:11,091 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, -15 predicate places. [2023-08-26 08:58:11,091 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 46 transitions, 118 flow [2023-08-26 08:58:11,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 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) [2023-08-26 08:58:11,092 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:58:11,092 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:58:11,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 08:58:11,093 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-26 08:58:11,094 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:58:11,094 INFO L85 PathProgramCache]: Analyzing trace with hash -840415669, now seen corresponding path program 1 times [2023-08-26 08:58:11,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:58:11,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013863233] [2023-08-26 08:58:11,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:58:11,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:58:11,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:58:11,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:58:11,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:58:11,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013863233] [2023-08-26 08:58:11,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013863233] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:58:11,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:58:11,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:58:11,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827860632] [2023-08-26 08:58:11,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:58:11,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:58:11,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:58:11,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:58:11,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:58:11,132 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 361 [2023-08-26 08:58:11,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 46 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 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) [2023-08-26 08:58:11,133 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:58:11,133 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 361 [2023-08-26 08:58:11,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:58:11,243 INFO L124 PetriNetUnfolderBase]: 575/930 cut-off events. [2023-08-26 08:58:11,244 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-26 08:58:11,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1827 conditions, 930 events. 575/930 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 4869 event pairs, 313 based on Foata normal form. 0/743 useless extension candidates. Maximal degree in co-relation 1822. Up to 627 conditions per place. [2023-08-26 08:58:11,250 INFO L140 encePairwiseOnDemand]: 357/361 looper letters, 35 selfloop transitions, 3 changer transitions 0/58 dead transitions. [2023-08-26 08:58:11,250 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 58 transitions, 220 flow [2023-08-26 08:58:11,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:58:11,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:58:11,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 573 transitions. [2023-08-26 08:58:11,252 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5290858725761773 [2023-08-26 08:58:11,252 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 573 transitions. [2023-08-26 08:58:11,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 573 transitions. [2023-08-26 08:58:11,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:58:11,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 573 transitions. [2023-08-26 08:58:11,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 191.0) internal successors, (573), 3 states have internal predecessors, (573), 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) [2023-08-26 08:58:11,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 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) [2023-08-26 08:58:11,257 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 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) [2023-08-26 08:58:11,257 INFO L175 Difference]: Start difference. First operand has 50 places, 46 transitions, 118 flow. Second operand 3 states and 573 transitions. [2023-08-26 08:58:11,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 58 transitions, 220 flow [2023-08-26 08:58:11,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 58 transitions, 220 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:58:11,258 INFO L231 Difference]: Finished difference. Result has 51 places, 45 transitions, 122 flow [2023-08-26 08:58:11,258 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=122, PETRI_PLACES=51, PETRI_TRANSITIONS=45} [2023-08-26 08:58:11,260 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, -14 predicate places. [2023-08-26 08:58:11,260 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 45 transitions, 122 flow [2023-08-26 08:58:11,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 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) [2023-08-26 08:58:11,261 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:58:11,261 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:58:11,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 08:58:11,261 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-26 08:58:11,261 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:58:11,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1351354129, now seen corresponding path program 1 times [2023-08-26 08:58:11,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:58:11,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500449657] [2023-08-26 08:58:11,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:58:11,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:58:11,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:58:11,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:58:11,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:58:11,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500449657] [2023-08-26 08:58:11,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500449657] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:58:11,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:58:11,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:58:11,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115922306] [2023-08-26 08:58:11,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:58:11,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:58:11,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:58:11,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:58:11,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:58:11,313 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 361 [2023-08-26 08:58:11,314 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 45 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 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) [2023-08-26 08:58:11,314 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:58:11,315 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 361 [2023-08-26 08:58:11,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:58:11,506 INFO L124 PetriNetUnfolderBase]: 1173/1738 cut-off events. [2023-08-26 08:58:11,506 INFO L125 PetriNetUnfolderBase]: For 343/343 co-relation queries the response was YES. [2023-08-26 08:58:11,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3808 conditions, 1738 events. 1173/1738 cut-off events. For 343/343 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 8262 event pairs, 274 based on Foata normal form. 0/1525 useless extension candidates. Maximal degree in co-relation 3802. Up to 1639 conditions per place. [2023-08-26 08:58:11,516 INFO L140 encePairwiseOnDemand]: 355/361 looper letters, 38 selfloop transitions, 2 changer transitions 0/52 dead transitions. [2023-08-26 08:58:11,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 52 transitions, 224 flow [2023-08-26 08:58:11,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:58:11,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:58:11,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 557 transitions. [2023-08-26 08:58:11,519 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5143120960295475 [2023-08-26 08:58:11,519 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 557 transitions. [2023-08-26 08:58:11,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 557 transitions. [2023-08-26 08:58:11,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:58:11,519 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 557 transitions. [2023-08-26 08:58:11,521 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 185.66666666666666) internal successors, (557), 3 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:58:11,522 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 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) [2023-08-26 08:58:11,523 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 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) [2023-08-26 08:58:11,523 INFO L175 Difference]: Start difference. First operand has 51 places, 45 transitions, 122 flow. Second operand 3 states and 557 transitions. [2023-08-26 08:58:11,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 52 transitions, 224 flow [2023-08-26 08:58:11,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 52 transitions, 212 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 08:58:11,526 INFO L231 Difference]: Finished difference. Result has 48 places, 43 transitions, 122 flow [2023-08-26 08:58:11,526 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=122, PETRI_PLACES=48, PETRI_TRANSITIONS=43} [2023-08-26 08:58:11,529 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, -17 predicate places. [2023-08-26 08:58:11,529 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 43 transitions, 122 flow [2023-08-26 08:58:11,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 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) [2023-08-26 08:58:11,530 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:58:11,530 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:58:11,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 08:58:11,530 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-26 08:58:11,530 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:58:11,530 INFO L85 PathProgramCache]: Analyzing trace with hash -2135475582, now seen corresponding path program 1 times [2023-08-26 08:58:11,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:58:11,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138725968] [2023-08-26 08:58:11,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:58:11,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:58:11,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:58:11,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:58:11,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:58:11,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138725968] [2023-08-26 08:58:11,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138725968] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:58:11,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:58:11,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:58:11,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371785881] [2023-08-26 08:58:11,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:58:11,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:58:11,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:58:11,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:58:11,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:58:11,725 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 361 [2023-08-26 08:58:11,726 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 43 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 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) [2023-08-26 08:58:11,726 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:58:11,726 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 361 [2023-08-26 08:58:11,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:58:11,866 INFO L124 PetriNetUnfolderBase]: 836/1330 cut-off events. [2023-08-26 08:58:11,866 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2023-08-26 08:58:11,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2672 conditions, 1330 events. 836/1330 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 7312 event pairs, 444 based on Foata normal form. 1/1098 useless extension candidates. Maximal degree in co-relation 2666. Up to 880 conditions per place. [2023-08-26 08:58:11,873 INFO L140 encePairwiseOnDemand]: 358/361 looper letters, 36 selfloop transitions, 2 changer transitions 4/60 dead transitions. [2023-08-26 08:58:11,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 60 transitions, 244 flow [2023-08-26 08:58:11,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:58:11,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:58:11,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 592 transitions. [2023-08-26 08:58:11,876 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5466297322253001 [2023-08-26 08:58:11,876 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 592 transitions. [2023-08-26 08:58:11,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 592 transitions. [2023-08-26 08:58:11,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:58:11,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 592 transitions. [2023-08-26 08:58:11,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 197.33333333333334) internal successors, (592), 3 states have internal predecessors, (592), 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) [2023-08-26 08:58:11,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 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) [2023-08-26 08:58:11,881 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 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) [2023-08-26 08:58:11,882 INFO L175 Difference]: Start difference. First operand has 48 places, 43 transitions, 122 flow. Second operand 3 states and 592 transitions. [2023-08-26 08:58:11,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 60 transitions, 244 flow [2023-08-26 08:58:11,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 60 transitions, 244 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:58:11,885 INFO L231 Difference]: Finished difference. Result has 51 places, 43 transitions, 130 flow [2023-08-26 08:58:11,886 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=51, PETRI_TRANSITIONS=43} [2023-08-26 08:58:11,888 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, -14 predicate places. [2023-08-26 08:58:11,889 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 43 transitions, 130 flow [2023-08-26 08:58:11,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 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) [2023-08-26 08:58:11,890 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:58:11,890 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:58:11,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 08:58:11,891 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-26 08:58:11,891 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:58:11,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1272490106, now seen corresponding path program 1 times [2023-08-26 08:58:11,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:58:11,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735569892] [2023-08-26 08:58:11,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:58:11,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:58:11,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:58:11,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:58:11,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:58:11,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735569892] [2023-08-26 08:58:11,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735569892] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:58:12,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:58:12,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:58:12,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303358428] [2023-08-26 08:58:12,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:58:12,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:58:12,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:58:12,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:58:12,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:58:12,002 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 361 [2023-08-26 08:58:12,003 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 43 transitions, 130 flow. Second operand has 3 states, 3 states have (on average 189.66666666666666) internal successors, (569), 3 states have internal predecessors, (569), 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) [2023-08-26 08:58:12,003 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:58:12,003 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 361 [2023-08-26 08:58:12,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:58:12,186 INFO L124 PetriNetUnfolderBase]: 1201/1944 cut-off events. [2023-08-26 08:58:12,187 INFO L125 PetriNetUnfolderBase]: For 96/96 co-relation queries the response was YES. [2023-08-26 08:58:12,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4076 conditions, 1944 events. 1201/1944 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 11918 event pairs, 652 based on Foata normal form. 1/1654 useless extension candidates. Maximal degree in co-relation 4068. Up to 1173 conditions per place. [2023-08-26 08:58:12,196 INFO L140 encePairwiseOnDemand]: 358/361 looper letters, 35 selfloop transitions, 2 changer transitions 7/62 dead transitions. [2023-08-26 08:58:12,196 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 62 transitions, 264 flow [2023-08-26 08:58:12,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:58:12,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:58:12,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 594 transitions. [2023-08-26 08:58:12,198 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5484764542936288 [2023-08-26 08:58:12,198 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 594 transitions. [2023-08-26 08:58:12,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 594 transitions. [2023-08-26 08:58:12,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:58:12,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 594 transitions. [2023-08-26 08:58:12,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 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) [2023-08-26 08:58:12,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 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) [2023-08-26 08:58:12,202 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 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) [2023-08-26 08:58:12,202 INFO L175 Difference]: Start difference. First operand has 51 places, 43 transitions, 130 flow. Second operand 3 states and 594 transitions. [2023-08-26 08:58:12,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 62 transitions, 264 flow [2023-08-26 08:58:12,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 62 transitions, 258 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 08:58:12,204 INFO L231 Difference]: Finished difference. Result has 52 places, 43 transitions, 134 flow [2023-08-26 08:58:12,204 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=134, PETRI_PLACES=52, PETRI_TRANSITIONS=43} [2023-08-26 08:58:12,204 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, -13 predicate places. [2023-08-26 08:58:12,205 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 43 transitions, 134 flow [2023-08-26 08:58:12,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 189.66666666666666) internal successors, (569), 3 states have internal predecessors, (569), 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) [2023-08-26 08:58:12,205 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:58:12,205 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:58:12,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 08:58:12,205 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-26 08:58:12,206 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:58:12,206 INFO L85 PathProgramCache]: Analyzing trace with hash 972717156, now seen corresponding path program 1 times [2023-08-26 08:58:12,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:58:12,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200881441] [2023-08-26 08:58:12,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:58:12,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:58:12,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:58:12,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:58:12,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:58:12,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200881441] [2023-08-26 08:58:12,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200881441] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:58:12,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:58:12,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:58:12,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795777477] [2023-08-26 08:58:12,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:58:12,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 08:58:12,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:58:12,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 08:58:12,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-26 08:58:12,489 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 361 [2023-08-26 08:58:12,490 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 43 transitions, 134 flow. Second operand has 6 states, 6 states have (on average 170.5) internal successors, (1023), 6 states have internal predecessors, (1023), 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) [2023-08-26 08:58:12,490 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:58:12,490 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 361 [2023-08-26 08:58:12,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:58:12,794 INFO L124 PetriNetUnfolderBase]: 1289/2162 cut-off events. [2023-08-26 08:58:12,795 INFO L125 PetriNetUnfolderBase]: For 120/120 co-relation queries the response was YES. [2023-08-26 08:58:12,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4524 conditions, 2162 events. 1289/2162 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 13914 event pairs, 553 based on Foata normal form. 1/1879 useless extension candidates. Maximal degree in co-relation 4515. Up to 1041 conditions per place. [2023-08-26 08:58:12,805 INFO L140 encePairwiseOnDemand]: 357/361 looper letters, 45 selfloop transitions, 2 changer transitions 22/87 dead transitions. [2023-08-26 08:58:12,805 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 87 transitions, 376 flow [2023-08-26 08:58:12,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 08:58:12,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 08:58:12,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 905 transitions. [2023-08-26 08:58:12,807 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5013850415512465 [2023-08-26 08:58:12,807 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 905 transitions. [2023-08-26 08:58:12,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 905 transitions. [2023-08-26 08:58:12,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:58:12,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 905 transitions. [2023-08-26 08:58:12,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 181.0) internal successors, (905), 5 states have internal predecessors, (905), 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) [2023-08-26 08:58:12,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 361.0) internal successors, (2166), 6 states have internal predecessors, (2166), 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) [2023-08-26 08:58:12,812 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 361.0) internal successors, (2166), 6 states have internal predecessors, (2166), 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) [2023-08-26 08:58:12,812 INFO L175 Difference]: Start difference. First operand has 52 places, 43 transitions, 134 flow. Second operand 5 states and 905 transitions. [2023-08-26 08:58:12,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 87 transitions, 376 flow [2023-08-26 08:58:12,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 87 transitions, 368 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 08:58:12,815 INFO L231 Difference]: Finished difference. Result has 56 places, 43 transitions, 139 flow [2023-08-26 08:58:12,815 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=139, PETRI_PLACES=56, PETRI_TRANSITIONS=43} [2023-08-26 08:58:12,815 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, -9 predicate places. [2023-08-26 08:58:12,815 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 43 transitions, 139 flow [2023-08-26 08:58:12,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 170.5) internal successors, (1023), 6 states have internal predecessors, (1023), 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) [2023-08-26 08:58:12,816 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:58:12,816 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:58:12,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 08:58:12,816 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-26 08:58:12,816 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:58:12,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1145970244, now seen corresponding path program 2 times [2023-08-26 08:58:12,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:58:12,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449291044] [2023-08-26 08:58:12,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:58:12,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:58:12,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:58:13,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:58:13,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:58:13,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449291044] [2023-08-26 08:58:13,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449291044] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:58:13,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:58:13,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:58:13,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116151869] [2023-08-26 08:58:13,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:58:13,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 08:58:13,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:58:13,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 08:58:13,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-26 08:58:13,029 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 361 [2023-08-26 08:58:13,030 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 43 transitions, 139 flow. Second operand has 6 states, 6 states have (on average 170.5) internal successors, (1023), 6 states have internal predecessors, (1023), 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) [2023-08-26 08:58:13,030 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:58:13,030 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 361 [2023-08-26 08:58:13,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:58:13,402 INFO L124 PetriNetUnfolderBase]: 1410/2334 cut-off events. [2023-08-26 08:58:13,402 INFO L125 PetriNetUnfolderBase]: For 495/495 co-relation queries the response was YES. [2023-08-26 08:58:13,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5100 conditions, 2334 events. 1410/2334 cut-off events. For 495/495 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 14945 event pairs, 546 based on Foata normal form. 1/2111 useless extension candidates. Maximal degree in co-relation 5089. Up to 996 conditions per place. [2023-08-26 08:58:13,412 INFO L140 encePairwiseOnDemand]: 355/361 looper letters, 41 selfloop transitions, 2 changer transitions 43/104 dead transitions. [2023-08-26 08:58:13,412 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 104 transitions, 461 flow [2023-08-26 08:58:13,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:58:13,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:58:13,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1089 transitions. [2023-08-26 08:58:13,415 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.502770083102493 [2023-08-26 08:58:13,415 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1089 transitions. [2023-08-26 08:58:13,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1089 transitions. [2023-08-26 08:58:13,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:58:13,416 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1089 transitions. [2023-08-26 08:58:13,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 181.5) internal successors, (1089), 6 states have internal predecessors, (1089), 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) [2023-08-26 08:58:13,420 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 361.0) internal successors, (2527), 7 states have internal predecessors, (2527), 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) [2023-08-26 08:58:13,421 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 361.0) internal successors, (2527), 7 states have internal predecessors, (2527), 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) [2023-08-26 08:58:13,421 INFO L175 Difference]: Start difference. First operand has 56 places, 43 transitions, 139 flow. Second operand 6 states and 1089 transitions. [2023-08-26 08:58:13,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 104 transitions, 461 flow [2023-08-26 08:58:13,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 104 transitions, 452 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-08-26 08:58:13,424 INFO L231 Difference]: Finished difference. Result has 61 places, 43 transitions, 148 flow [2023-08-26 08:58:13,424 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=148, PETRI_PLACES=61, PETRI_TRANSITIONS=43} [2023-08-26 08:58:13,424 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, -4 predicate places. [2023-08-26 08:58:13,424 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 43 transitions, 148 flow [2023-08-26 08:58:13,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 170.5) internal successors, (1023), 6 states have internal predecessors, (1023), 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) [2023-08-26 08:58:13,425 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:58:13,425 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:58:13,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 08:58:13,425 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-26 08:58:13,426 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:58:13,426 INFO L85 PathProgramCache]: Analyzing trace with hash 336466890, now seen corresponding path program 3 times [2023-08-26 08:58:13,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:58:13,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012001413] [2023-08-26 08:58:13,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:58:13,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:58:13,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:58:13,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:58:13,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:58:13,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012001413] [2023-08-26 08:58:13,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012001413] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:58:13,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:58:13,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 08:58:13,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720771708] [2023-08-26 08:58:13,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:58:13,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 08:58:13,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:58:13,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 08:58:13,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 08:58:13,671 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 361 [2023-08-26 08:58:13,672 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 43 transitions, 148 flow. Second operand has 5 states, 5 states have (on average 171.2) internal successors, (856), 5 states have internal predecessors, (856), 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) [2023-08-26 08:58:13,672 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:58:13,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 361 [2023-08-26 08:58:13,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:58:14,005 INFO L124 PetriNetUnfolderBase]: 997/1711 cut-off events. [2023-08-26 08:58:14,005 INFO L125 PetriNetUnfolderBase]: For 733/733 co-relation queries the response was YES. [2023-08-26 08:58:14,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3932 conditions, 1711 events. 997/1711 cut-off events. For 733/733 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 10851 event pairs, 411 based on Foata normal form. 1/1571 useless extension candidates. Maximal degree in co-relation 3918. Up to 820 conditions per place. [2023-08-26 08:58:14,012 INFO L140 encePairwiseOnDemand]: 357/361 looper letters, 0 selfloop transitions, 0 changer transitions 84/84 dead transitions. [2023-08-26 08:58:14,012 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 84 transitions, 379 flow [2023-08-26 08:58:14,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 08:58:14,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 08:58:14,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 902 transitions. [2023-08-26 08:58:14,015 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4997229916897507 [2023-08-26 08:58:14,015 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 902 transitions. [2023-08-26 08:58:14,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 902 transitions. [2023-08-26 08:58:14,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:58:14,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 902 transitions. [2023-08-26 08:58:14,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 180.4) internal successors, (902), 5 states have internal predecessors, (902), 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) [2023-08-26 08:58:14,021 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 361.0) internal successors, (2166), 6 states have internal predecessors, (2166), 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) [2023-08-26 08:58:14,021 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 361.0) internal successors, (2166), 6 states have internal predecessors, (2166), 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) [2023-08-26 08:58:14,022 INFO L175 Difference]: Start difference. First operand has 61 places, 43 transitions, 148 flow. Second operand 5 states and 902 transitions. [2023-08-26 08:58:14,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 84 transitions, 379 flow [2023-08-26 08:58:14,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 84 transitions, 369 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-26 08:58:14,025 INFO L231 Difference]: Finished difference. Result has 59 places, 0 transitions, 0 flow [2023-08-26 08:58:14,026 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=59, PETRI_TRANSITIONS=0} [2023-08-26 08:58:14,026 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, -6 predicate places. [2023-08-26 08:58:14,026 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 0 transitions, 0 flow [2023-08-26 08:58:14,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 171.2) internal successors, (856), 5 states have internal predecessors, (856), 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) [2023-08-26 08:58:14,029 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (36 of 37 remaining) [2023-08-26 08:58:14,029 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining) [2023-08-26 08:58:14,030 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining) [2023-08-26 08:58:14,030 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining) [2023-08-26 08:58:14,030 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining) [2023-08-26 08:58:14,030 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining) [2023-08-26 08:58:14,030 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (30 of 37 remaining) [2023-08-26 08:58:14,030 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining) [2023-08-26 08:58:14,030 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining) [2023-08-26 08:58:14,030 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining) [2023-08-26 08:58:14,030 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining) [2023-08-26 08:58:14,031 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining) [2023-08-26 08:58:14,031 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining) [2023-08-26 08:58:14,031 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining) [2023-08-26 08:58:14,031 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining) [2023-08-26 08:58:14,031 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining) [2023-08-26 08:58:14,031 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining) [2023-08-26 08:58:14,031 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining) [2023-08-26 08:58:14,031 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining) [2023-08-26 08:58:14,031 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining) [2023-08-26 08:58:14,032 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining) [2023-08-26 08:58:14,032 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONASSERT (15 of 37 remaining) [2023-08-26 08:58:14,032 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 37 remaining) [2023-08-26 08:58:14,032 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 37 remaining) [2023-08-26 08:58:14,032 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 37 remaining) [2023-08-26 08:58:14,032 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining) [2023-08-26 08:58:14,032 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining) [2023-08-26 08:58:14,033 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining) [2023-08-26 08:58:14,033 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining) [2023-08-26 08:58:14,033 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (7 of 37 remaining) [2023-08-26 08:58:14,033 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining) [2023-08-26 08:58:14,033 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining) [2023-08-26 08:58:14,033 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining) [2023-08-26 08:58:14,033 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining) [2023-08-26 08:58:14,033 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining) [2023-08-26 08:58:14,033 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining) [2023-08-26 08:58:14,033 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining) [2023-08-26 08:58:14,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-26 08:58:14,034 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:58:14,039 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 08:58:14,039 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 08:58:14,043 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 08:58:14 BasicIcfg [2023-08-26 08:58:14,043 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 08:58:14,044 INFO L158 Benchmark]: Toolchain (without parser) took 9003.03ms. Allocated memory was 379.6MB in the beginning and 549.5MB in the end (delta: 169.9MB). Free memory was 334.3MB in the beginning and 501.4MB in the end (delta: -167.1MB). Peak memory consumption was 250.2MB. Max. memory is 16.0GB. [2023-08-26 08:58:14,044 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 379.6MB. Free memory is still 357.2MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 08:58:14,044 INFO L158 Benchmark]: CACSL2BoogieTranslator took 235.88ms. Allocated memory is still 379.6MB. Free memory was 334.3MB in the beginning and 322.7MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-26 08:58:14,045 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.35ms. Allocated memory is still 379.6MB. Free memory was 322.7MB in the beginning and 320.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 08:58:14,045 INFO L158 Benchmark]: Boogie Preprocessor took 26.07ms. Allocated memory is still 379.6MB. Free memory was 320.6MB in the beginning and 318.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 08:58:14,045 INFO L158 Benchmark]: RCFGBuilder took 463.88ms. Allocated memory is still 379.6MB. Free memory was 318.6MB in the beginning and 298.6MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-26 08:58:14,045 INFO L158 Benchmark]: TraceAbstraction took 8238.07ms. Allocated memory was 379.6MB in the beginning and 549.5MB in the end (delta: 169.9MB). Free memory was 297.6MB in the beginning and 501.4MB in the end (delta: -203.8MB). Peak memory consumption was 214.5MB. Max. memory is 16.0GB. [2023-08-26 08:58:14,047 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 379.6MB. Free memory is still 357.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 235.88ms. Allocated memory is still 379.6MB. Free memory was 334.3MB in the beginning and 322.7MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 33.35ms. Allocated memory is still 379.6MB. Free memory was 322.7MB in the beginning and 320.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 26.07ms. Allocated memory is still 379.6MB. Free memory was 320.6MB in the beginning and 318.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 463.88ms. Allocated memory is still 379.6MB. Free memory was 318.6MB in the beginning and 298.6MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 8238.07ms. Allocated memory was 379.6MB in the beginning and 549.5MB in the end (delta: 169.9MB). Free memory was 297.6MB in the beginning and 501.4MB in the end (delta: -203.8MB). Peak memory consumption was 214.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.1s, 184 PlacesBefore, 65 PlacesAfterwards, 180 TransitionsBefore, 58 TransitionsAfterwards, 6072 CoEnabledTransitionPairs, 7 FixpointIterations, 78 TrivialSequentialCompositions, 67 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 8 ConcurrentYvCompositions, 3 ChoiceCompositions, 167 TotalNumberOfCompositions, 21243 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9261, independent: 8838, independent conditional: 0, independent unconditional: 8838, dependent: 423, dependent conditional: 0, dependent unconditional: 423, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3371, independent: 3326, independent conditional: 0, independent unconditional: 3326, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 9261, independent: 5512, independent conditional: 0, independent unconditional: 5512, dependent: 378, dependent conditional: 0, dependent unconditional: 378, unknown: 3371, unknown conditional: 0, unknown unconditional: 3371] , Statistics on independence cache: Total cache size (in pairs): 496, Positive cache size: 465, Positive conditional cache size: 0, Positive unconditional cache size: 465, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 21]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 258 locations, 37 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.1s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 243 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 243 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 922 IncrementalHoareTripleChecker+Invalid, 938 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 14 mSDtfsCounter, 922 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=148occurred in iteration=9, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 170 ConstructedInterpolants, 0 QuantifiedInterpolants, 1247 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 22 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-26 08:58:14,068 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...