/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/goblint-regression/02-base_24-malloc_races.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 06:54:57,000 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 06:54:57,064 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 06:54:57,068 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 06:54:57,068 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 06:54:57,091 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 06:54:57,092 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 06:54:57,092 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 06:54:57,093 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 06:54:57,095 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 06:54:57,096 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 06:54:57,096 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 06:54:57,096 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 06:54:57,097 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 06:54:57,097 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 06:54:57,097 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 06:54:57,097 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 06:54:57,098 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 06:54:57,098 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 06:54:57,098 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 06:54:57,098 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 06:54:57,099 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 06:54:57,099 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 06:54:57,099 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 06:54:57,100 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 06:54:57,100 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 06:54:57,100 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 06:54:57,100 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 06:54:57,100 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 06:54:57,100 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 06:54:57,101 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 06:54:57,101 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 06:54:57,101 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 06:54:57,102 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 06:54:57,102 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 06:54:57,102 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 06:54:57,351 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 06:54:57,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 06:54:57,374 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 06:54:57,375 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 06:54:57,375 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 06:54:57,377 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/02-base_24-malloc_races.i [2023-08-26 06:54:58,385 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 06:54:58,613 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 06:54:58,613 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/02-base_24-malloc_races.i [2023-08-26 06:54:58,624 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f3b1c47d/51bcc8c673ac40bf8eed95610f0ac609/FLAG37af35397 [2023-08-26 06:54:58,633 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f3b1c47d/51bcc8c673ac40bf8eed95610f0ac609 [2023-08-26 06:54:58,634 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 06:54:58,635 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 06:54:58,636 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 06:54:58,636 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 06:54:58,637 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 06:54:58,638 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 06:54:58" (1/1) ... [2023-08-26 06:54:58,638 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e4815dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:54:58, skipping insertion in model container [2023-08-26 06:54:58,638 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 06:54:58" (1/1) ... [2023-08-26 06:54:58,669 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 06:54:59,016 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 06:54:59,026 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 06:54:59,047 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [261] [2023-08-26 06:54:59,048 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [261] [2023-08-26 06:54:59,055 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [1044] [2023-08-26 06:54:59,071 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 06:54:59,135 INFO L206 MainTranslator]: Completed translation [2023-08-26 06:54:59,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:54:59 WrapperNode [2023-08-26 06:54:59,136 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 06:54:59,137 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 06:54:59,137 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 06:54:59,137 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 06:54:59,141 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:54:59" (1/1) ... [2023-08-26 06:54:59,169 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:54:59" (1/1) ... [2023-08-26 06:54:59,193 INFO L138 Inliner]: procedures = 365, calls = 21, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 64 [2023-08-26 06:54:59,193 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 06:54:59,194 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 06:54:59,194 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 06:54:59,194 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 06:54:59,200 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:54:59" (1/1) ... [2023-08-26 06:54:59,200 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:54:59" (1/1) ... [2023-08-26 06:54:59,212 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:54:59" (1/1) ... [2023-08-26 06:54:59,212 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:54:59" (1/1) ... [2023-08-26 06:54:59,218 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:54:59" (1/1) ... [2023-08-26 06:54:59,219 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:54:59" (1/1) ... [2023-08-26 06:54:59,220 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:54:59" (1/1) ... [2023-08-26 06:54:59,220 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:54:59" (1/1) ... [2023-08-26 06:54:59,222 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 06:54:59,222 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 06:54:59,223 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 06:54:59,223 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 06:54:59,223 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:54:59" (1/1) ... [2023-08-26 06:54:59,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 06:54:59,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 06:54:59,270 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 06:54:59,273 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 06:54:59,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 06:54:59,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 06:54:59,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 06:54:59,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 06:54:59,293 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 06:54:59,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-26 06:54:59,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 06:54:59,294 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-26 06:54:59,294 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-26 06:54:59,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 06:54:59,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 06:54:59,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 06:54:59,295 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 06:54:59,399 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 06:54:59,400 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 06:54:59,587 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 06:54:59,592 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 06:54:59,592 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 06:54:59,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 06:54:59 BoogieIcfgContainer [2023-08-26 06:54:59,593 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 06:54:59,594 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 06:54:59,594 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 06:54:59,596 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 06:54:59,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 06:54:58" (1/3) ... [2023-08-26 06:54:59,597 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20d17f1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 06:54:59, skipping insertion in model container [2023-08-26 06:54:59,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:54:59" (2/3) ... [2023-08-26 06:54:59,597 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20d17f1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 06:54:59, skipping insertion in model container [2023-08-26 06:54:59,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 06:54:59" (3/3) ... [2023-08-26 06:54:59,598 INFO L112 eAbstractionObserver]: Analyzing ICFG 02-base_24-malloc_races.i [2023-08-26 06:54:59,611 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 06:54:59,611 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-08-26 06:54:59,612 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 06:54:59,669 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 06:54:59,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 100 transitions, 205 flow [2023-08-26 06:54:59,739 INFO L124 PetriNetUnfolderBase]: 0/99 cut-off events. [2023-08-26 06:54:59,739 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:54:59,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 99 events. 0/99 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 78 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-26 06:54:59,743 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 100 transitions, 205 flow [2023-08-26 06:54:59,749 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 103 places, 99 transitions, 201 flow [2023-08-26 06:54:59,751 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 06:54:59,760 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 99 transitions, 201 flow [2023-08-26 06:54:59,763 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 99 transitions, 201 flow [2023-08-26 06:54:59,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 99 transitions, 201 flow [2023-08-26 06:54:59,787 INFO L124 PetriNetUnfolderBase]: 0/99 cut-off events. [2023-08-26 06:54:59,787 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:54:59,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 99 events. 0/99 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 78 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-26 06:54:59,788 INFO L119 LiptonReduction]: Number of co-enabled transitions 2040 [2023-08-26 06:55:01,768 INFO L134 LiptonReduction]: Checked pairs total: 15676 [2023-08-26 06:55:01,768 INFO L136 LiptonReduction]: Total number of compositions: 59 [2023-08-26 06:55:01,778 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 06:55:01,782 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;@7b60ea8d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 06:55:01,782 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-08-26 06:55:01,782 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 06:55:01,782 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-26 06:55:01,783 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:55:01,783 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:55:01,783 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 06:55:01,783 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-26 06:55:01,799 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:55:01,799 INFO L85 PathProgramCache]: Analyzing trace with hash 318, now seen corresponding path program 1 times [2023-08-26 06:55:01,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:55:01,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203229653] [2023-08-26 06:55:01,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:55:01,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:55:01,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:55:01,875 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 06:55:01,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:55:01,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203229653] [2023-08-26 06:55:01,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203229653] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:55:01,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:55:01,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-26 06:55:01,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732111035] [2023-08-26 06:55:01,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:55:01,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 06:55:01,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:55:01,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 06:55:01,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 06:55:01,902 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 159 [2023-08-26 06:55:01,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 48 transitions, 99 flow. Second operand has 2 states, 2 states have (on average 99.5) internal successors, (199), 2 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:01,903 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:55:01,903 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 159 [2023-08-26 06:55:01,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:55:01,949 INFO L124 PetriNetUnfolderBase]: 35/208 cut-off events. [2023-08-26 06:55:01,949 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:55:01,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 208 events. 35/208 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 925 event pairs, 35 based on Foata normal form. 0/187 useless extension candidates. Maximal degree in co-relation 288. Up to 85 conditions per place. [2023-08-26 06:55:01,951 INFO L140 encePairwiseOnDemand]: 157/159 looper letters, 14 selfloop transitions, 0 changer transitions 0/46 dead transitions. [2023-08-26 06:55:01,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 46 transitions, 123 flow [2023-08-26 06:55:01,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 06:55:01,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 06:55:01,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 214 transitions. [2023-08-26 06:55:01,962 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6729559748427673 [2023-08-26 06:55:01,963 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 214 transitions. [2023-08-26 06:55:01,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 214 transitions. [2023-08-26 06:55:01,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:55:01,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 214 transitions. [2023-08-26 06:55:01,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 107.0) internal successors, (214), 2 states have internal predecessors, (214), 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 06:55:01,971 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 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 06:55:01,971 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 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 06:55:01,974 INFO L175 Difference]: Start difference. First operand has 52 places, 48 transitions, 99 flow. Second operand 2 states and 214 transitions. [2023-08-26 06:55:01,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 46 transitions, 123 flow [2023-08-26 06:55:01,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 46 transitions, 122 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 06:55:01,977 INFO L231 Difference]: Finished difference. Result has 50 places, 46 transitions, 94 flow [2023-08-26 06:55:01,978 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=94, PETRI_PLACES=50, PETRI_TRANSITIONS=46} [2023-08-26 06:55:01,981 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -2 predicate places. [2023-08-26 06:55:01,981 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 46 transitions, 94 flow [2023-08-26 06:55:01,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 99.5) internal successors, (199), 2 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:01,981 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:55:01,981 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-26 06:55:01,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 06:55:01,982 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-26 06:55:01,982 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:55:01,982 INFO L85 PathProgramCache]: Analyzing trace with hash 303604012, now seen corresponding path program 1 times [2023-08-26 06:55:01,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:55:01,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390253213] [2023-08-26 06:55:01,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:55:01,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:55:02,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:55:02,057 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 06:55:02,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:55:02,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390253213] [2023-08-26 06:55:02,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390253213] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:55:02,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:55:02,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 06:55:02,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241077023] [2023-08-26 06:55:02,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:55:02,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 06:55:02,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:55:02,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 06:55:02,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 06:55:02,059 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 159 [2023-08-26 06:55:02,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 46 transitions, 94 flow. Second operand has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 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 06:55:02,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:55:02,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 159 [2023-08-26 06:55:02,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:55:02,112 INFO L124 PetriNetUnfolderBase]: 48/233 cut-off events. [2023-08-26 06:55:02,112 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:55:02,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 350 conditions, 233 events. 48/233 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1045 event pairs, 29 based on Foata normal form. 0/217 useless extension candidates. Maximal degree in co-relation 347. Up to 106 conditions per place. [2023-08-26 06:55:02,116 INFO L140 encePairwiseOnDemand]: 155/159 looper letters, 18 selfloop transitions, 2 changer transitions 0/48 dead transitions. [2023-08-26 06:55:02,116 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 48 transitions, 138 flow [2023-08-26 06:55:02,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 06:55:02,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 06:55:02,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 292 transitions. [2023-08-26 06:55:02,120 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6121593291404612 [2023-08-26 06:55:02,120 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 292 transitions. [2023-08-26 06:55:02,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 292 transitions. [2023-08-26 06:55:02,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:55:02,121 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 292 transitions. [2023-08-26 06:55:02,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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 06:55:02,124 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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 06:55:02,124 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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 06:55:02,124 INFO L175 Difference]: Start difference. First operand has 50 places, 46 transitions, 94 flow. Second operand 3 states and 292 transitions. [2023-08-26 06:55:02,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 48 transitions, 138 flow [2023-08-26 06:55:02,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 48 transitions, 138 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 06:55:02,125 INFO L231 Difference]: Finished difference. Result has 51 places, 46 transitions, 104 flow [2023-08-26 06:55:02,125 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=48, 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=104, PETRI_PLACES=51, PETRI_TRANSITIONS=46} [2023-08-26 06:55:02,129 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -1 predicate places. [2023-08-26 06:55:02,129 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 46 transitions, 104 flow [2023-08-26 06:55:02,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 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 06:55:02,130 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:55:02,130 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:55:02,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 06:55:02,133 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-26 06:55:02,136 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:55:02,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1969543495, now seen corresponding path program 1 times [2023-08-26 06:55:02,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:55:02,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960671185] [2023-08-26 06:55:02,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:55:02,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:55:02,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:55:02,428 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 06:55:02,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:55:02,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960671185] [2023-08-26 06:55:02,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960671185] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:55:02,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:55:02,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 06:55:02,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999595410] [2023-08-26 06:55:02,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:55:02,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 06:55:02,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:55:02,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 06:55:02,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 06:55:02,430 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 159 [2023-08-26 06:55:02,431 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 46 transitions, 104 flow. Second operand has 6 states, 6 states have (on average 72.66666666666667) internal successors, (436), 6 states have internal predecessors, (436), 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 06:55:02,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:55:02,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 159 [2023-08-26 06:55:02,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:55:02,753 INFO L124 PetriNetUnfolderBase]: 508/1226 cut-off events. [2023-08-26 06:55:02,753 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2023-08-26 06:55:02,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2358 conditions, 1226 events. 508/1226 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 7395 event pairs, 50 based on Foata normal form. 0/1030 useless extension candidates. Maximal degree in co-relation 2354. Up to 512 conditions per place. [2023-08-26 06:55:02,758 INFO L140 encePairwiseOnDemand]: 144/159 looper letters, 112 selfloop transitions, 37 changer transitions 0/158 dead transitions. [2023-08-26 06:55:02,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 158 transitions, 634 flow [2023-08-26 06:55:02,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 06:55:02,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 06:55:02,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 574 transitions. [2023-08-26 06:55:02,760 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6016771488469602 [2023-08-26 06:55:02,760 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 574 transitions. [2023-08-26 06:55:02,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 574 transitions. [2023-08-26 06:55:02,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:55:02,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 574 transitions. [2023-08-26 06:55:02,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 95.66666666666667) internal successors, (574), 6 states have internal predecessors, (574), 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 06:55:02,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 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 06:55:02,764 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 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 06:55:02,765 INFO L175 Difference]: Start difference. First operand has 51 places, 46 transitions, 104 flow. Second operand 6 states and 574 transitions. [2023-08-26 06:55:02,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 158 transitions, 634 flow [2023-08-26 06:55:02,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 158 transitions, 634 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 06:55:02,767 INFO L231 Difference]: Finished difference. Result has 60 places, 84 transitions, 340 flow [2023-08-26 06:55:02,767 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=340, PETRI_PLACES=60, PETRI_TRANSITIONS=84} [2023-08-26 06:55:02,768 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 8 predicate places. [2023-08-26 06:55:02,768 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 84 transitions, 340 flow [2023-08-26 06:55:02,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.66666666666667) internal successors, (436), 6 states have internal predecessors, (436), 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 06:55:02,768 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:55:02,768 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:55:02,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 06:55:02,768 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-26 06:55:02,769 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:55:02,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1746522081, now seen corresponding path program 1 times [2023-08-26 06:55:02,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:55:02,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246539214] [2023-08-26 06:55:02,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:55:02,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:55:02,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:55:02,910 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 06:55:02,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:55:02,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246539214] [2023-08-26 06:55:02,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246539214] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:55:02,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:55:02,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 06:55:02,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444631969] [2023-08-26 06:55:02,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:55:02,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 06:55:02,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:55:02,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 06:55:02,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 06:55:02,912 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 159 [2023-08-26 06:55:02,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 84 transitions, 340 flow. Second operand has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 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 06:55:02,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:55:02,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 159 [2023-08-26 06:55:02,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:55:03,156 INFO L124 PetriNetUnfolderBase]: 566/1340 cut-off events. [2023-08-26 06:55:03,156 INFO L125 PetriNetUnfolderBase]: For 486/486 co-relation queries the response was YES. [2023-08-26 06:55:03,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3448 conditions, 1340 events. 566/1340 cut-off events. For 486/486 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 8042 event pairs, 259 based on Foata normal form. 25/1239 useless extension candidates. Maximal degree in co-relation 3439. Up to 1028 conditions per place. [2023-08-26 06:55:03,163 INFO L140 encePairwiseOnDemand]: 144/159 looper letters, 116 selfloop transitions, 45 changer transitions 0/170 dead transitions. [2023-08-26 06:55:03,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 170 transitions, 954 flow [2023-08-26 06:55:03,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 06:55:03,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 06:55:03,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 530 transitions. [2023-08-26 06:55:03,178 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2023-08-26 06:55:03,178 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 530 transitions. [2023-08-26 06:55:03,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 530 transitions. [2023-08-26 06:55:03,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:55:03,179 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 530 transitions. [2023-08-26 06:55:03,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 88.33333333333333) internal successors, (530), 6 states have internal predecessors, (530), 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 06:55:03,181 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 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 06:55:03,181 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 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 06:55:03,182 INFO L175 Difference]: Start difference. First operand has 60 places, 84 transitions, 340 flow. Second operand 6 states and 530 transitions. [2023-08-26 06:55:03,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 170 transitions, 954 flow [2023-08-26 06:55:03,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 170 transitions, 954 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 06:55:03,187 INFO L231 Difference]: Finished difference. Result has 69 places, 126 transitions, 681 flow [2023-08-26 06:55:03,187 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=681, PETRI_PLACES=69, PETRI_TRANSITIONS=126} [2023-08-26 06:55:03,188 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 17 predicate places. [2023-08-26 06:55:03,188 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 126 transitions, 681 flow [2023-08-26 06:55:03,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 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 06:55:03,188 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:55:03,188 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:55:03,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 06:55:03,189 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-26 06:55:03,189 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:55:03,189 INFO L85 PathProgramCache]: Analyzing trace with hash -924462950, now seen corresponding path program 1 times [2023-08-26 06:55:03,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:55:03,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859647415] [2023-08-26 06:55:03,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:55:03,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:55:03,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:55:03,211 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 06:55:03,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:55:03,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859647415] [2023-08-26 06:55:03,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859647415] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:55:03,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:55:03,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 06:55:03,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262187364] [2023-08-26 06:55:03,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:55:03,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 06:55:03,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:55:03,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 06:55:03,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 06:55:03,213 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 159 [2023-08-26 06:55:03,214 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 126 transitions, 681 flow. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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 06:55:03,214 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:55:03,214 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 159 [2023-08-26 06:55:03,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:55:03,309 INFO L124 PetriNetUnfolderBase]: 237/811 cut-off events. [2023-08-26 06:55:03,309 INFO L125 PetriNetUnfolderBase]: For 696/750 co-relation queries the response was YES. [2023-08-26 06:55:03,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2204 conditions, 811 events. 237/811 cut-off events. For 696/750 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 5198 event pairs, 42 based on Foata normal form. 17/815 useless extension candidates. Maximal degree in co-relation 2190. Up to 250 conditions per place. [2023-08-26 06:55:03,313 INFO L140 encePairwiseOnDemand]: 155/159 looper letters, 59 selfloop transitions, 2 changer transitions 0/142 dead transitions. [2023-08-26 06:55:03,314 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 142 transitions, 905 flow [2023-08-26 06:55:03,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 06:55:03,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 06:55:03,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2023-08-26 06:55:03,315 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6247379454926625 [2023-08-26 06:55:03,315 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 298 transitions. [2023-08-26 06:55:03,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 298 transitions. [2023-08-26 06:55:03,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:55:03,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 298 transitions. [2023-08-26 06:55:03,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:03,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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 06:55:03,317 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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 06:55:03,317 INFO L175 Difference]: Start difference. First operand has 69 places, 126 transitions, 681 flow. Second operand 3 states and 298 transitions. [2023-08-26 06:55:03,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 142 transitions, 905 flow [2023-08-26 06:55:03,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 142 transitions, 889 flow, removed 8 selfloop flow, removed 0 redundant places. [2023-08-26 06:55:03,322 INFO L231 Difference]: Finished difference. Result has 70 places, 126 transitions, 675 flow [2023-08-26 06:55:03,323 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=661, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=675, PETRI_PLACES=70, PETRI_TRANSITIONS=126} [2023-08-26 06:55:03,323 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 18 predicate places. [2023-08-26 06:55:03,323 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 126 transitions, 675 flow [2023-08-26 06:55:03,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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 06:55:03,323 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:55:03,323 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:55:03,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 06:55:03,324 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-26 06:55:03,324 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:55:03,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1958450872, now seen corresponding path program 1 times [2023-08-26 06:55:03,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:55:03,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380210472] [2023-08-26 06:55:03,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:55:03,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:55:03,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:55:03,361 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 06:55:03,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:55:03,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380210472] [2023-08-26 06:55:03,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380210472] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:55:03,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:55:03,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 06:55:03,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347194169] [2023-08-26 06:55:03,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:55:03,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 06:55:03,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:55:03,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 06:55:03,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 06:55:03,363 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 159 [2023-08-26 06:55:03,363 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 126 transitions, 675 flow. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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 06:55:03,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:55:03,363 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 159 [2023-08-26 06:55:03,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:55:03,392 INFO L124 PetriNetUnfolderBase]: 49/223 cut-off events. [2023-08-26 06:55:03,393 INFO L125 PetriNetUnfolderBase]: For 136/142 co-relation queries the response was YES. [2023-08-26 06:55:03,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 599 conditions, 223 events. 49/223 cut-off events. For 136/142 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 888 event pairs, 11 based on Foata normal form. 12/232 useless extension candidates. Maximal degree in co-relation 584. Up to 68 conditions per place. [2023-08-26 06:55:03,394 INFO L140 encePairwiseOnDemand]: 155/159 looper letters, 19 selfloop transitions, 4 changer transitions 0/69 dead transitions. [2023-08-26 06:55:03,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 69 transitions, 348 flow [2023-08-26 06:55:03,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 06:55:03,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 06:55:03,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2023-08-26 06:55:03,395 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.59958071278826 [2023-08-26 06:55:03,395 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 286 transitions. [2023-08-26 06:55:03,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 286 transitions. [2023-08-26 06:55:03,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:55:03,395 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 286 transitions. [2023-08-26 06:55:03,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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 06:55:03,396 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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 06:55:03,397 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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 06:55:03,397 INFO L175 Difference]: Start difference. First operand has 70 places, 126 transitions, 675 flow. Second operand 3 states and 286 transitions. [2023-08-26 06:55:03,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 69 transitions, 348 flow [2023-08-26 06:55:03,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 69 transitions, 304 flow, removed 15 selfloop flow, removed 7 redundant places. [2023-08-26 06:55:03,399 INFO L231 Difference]: Finished difference. Result has 64 places, 66 transitions, 255 flow [2023-08-26 06:55:03,399 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=255, PETRI_PLACES=64, PETRI_TRANSITIONS=66} [2023-08-26 06:55:03,400 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 12 predicate places. [2023-08-26 06:55:03,400 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 66 transitions, 255 flow [2023-08-26 06:55:03,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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 06:55:03,400 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:55:03,400 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:55:03,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 06:55:03,400 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-26 06:55:03,401 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:55:03,401 INFO L85 PathProgramCache]: Analyzing trace with hash 2088875983, now seen corresponding path program 1 times [2023-08-26 06:55:03,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:55:03,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172072582] [2023-08-26 06:55:03,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:55:03,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:55:03,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:55:03,567 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 06:55:03,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:55:03,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172072582] [2023-08-26 06:55:03,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172072582] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:55:03,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:55:03,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 06:55:03,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965342615] [2023-08-26 06:55:03,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:55:03,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 06:55:03,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:55:03,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 06:55:03,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 06:55:03,569 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 159 [2023-08-26 06:55:03,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 66 transitions, 255 flow. Second operand has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:03,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:55:03,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 159 [2023-08-26 06:55:03,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:55:03,686 INFO L124 PetriNetUnfolderBase]: 192/490 cut-off events. [2023-08-26 06:55:03,686 INFO L125 PetriNetUnfolderBase]: For 151/153 co-relation queries the response was YES. [2023-08-26 06:55:03,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1293 conditions, 490 events. 192/490 cut-off events. For 151/153 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2138 event pairs, 77 based on Foata normal form. 0/437 useless extension candidates. Maximal degree in co-relation 1281. Up to 344 conditions per place. [2023-08-26 06:55:03,688 INFO L140 encePairwiseOnDemand]: 148/159 looper letters, 80 selfloop transitions, 21 changer transitions 4/114 dead transitions. [2023-08-26 06:55:03,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 114 transitions, 601 flow [2023-08-26 06:55:03,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 06:55:03,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 06:55:03,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 496 transitions. [2023-08-26 06:55:03,689 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.519916142557652 [2023-08-26 06:55:03,689 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 496 transitions. [2023-08-26 06:55:03,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 496 transitions. [2023-08-26 06:55:03,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:55:03,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 496 transitions. [2023-08-26 06:55:03,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.66666666666667) internal successors, (496), 6 states have internal predecessors, (496), 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 06:55:03,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 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 06:55:03,693 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 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 06:55:03,693 INFO L175 Difference]: Start difference. First operand has 64 places, 66 transitions, 255 flow. Second operand 6 states and 496 transitions. [2023-08-26 06:55:03,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 114 transitions, 601 flow [2023-08-26 06:55:03,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 114 transitions, 597 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 06:55:03,696 INFO L231 Difference]: Finished difference. Result has 72 places, 87 transitions, 414 flow [2023-08-26 06:55:03,696 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=414, PETRI_PLACES=72, PETRI_TRANSITIONS=87} [2023-08-26 06:55:03,697 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 20 predicate places. [2023-08-26 06:55:03,697 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 87 transitions, 414 flow [2023-08-26 06:55:03,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:03,697 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:55:03,697 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] [2023-08-26 06:55:03,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 06:55:03,699 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-26 06:55:03,699 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:55:03,699 INFO L85 PathProgramCache]: Analyzing trace with hash 882238423, now seen corresponding path program 1 times [2023-08-26 06:55:03,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:55:03,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285876321] [2023-08-26 06:55:03,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:55:03,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:55:03,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:55:03,905 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 06:55:03,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:55:03,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285876321] [2023-08-26 06:55:03,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285876321] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:55:03,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:55:03,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 06:55:03,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192423227] [2023-08-26 06:55:03,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:55:03,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 06:55:03,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:55:03,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 06:55:03,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 06:55:03,908 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 159 [2023-08-26 06:55:03,908 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 87 transitions, 414 flow. Second operand has 6 states, 6 states have (on average 73.66666666666667) internal successors, (442), 6 states have internal predecessors, (442), 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 06:55:03,908 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:55:03,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 159 [2023-08-26 06:55:03,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:55:04,124 INFO L124 PetriNetUnfolderBase]: 244/646 cut-off events. [2023-08-26 06:55:04,124 INFO L125 PetriNetUnfolderBase]: For 435/437 co-relation queries the response was YES. [2023-08-26 06:55:04,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2130 conditions, 646 events. 244/646 cut-off events. For 435/437 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3231 event pairs, 51 based on Foata normal form. 19/663 useless extension candidates. Maximal degree in co-relation 2113. Up to 345 conditions per place. [2023-08-26 06:55:04,127 INFO L140 encePairwiseOnDemand]: 144/159 looper letters, 99 selfloop transitions, 48 changer transitions 17/173 dead transitions. [2023-08-26 06:55:04,127 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 173 transitions, 1115 flow [2023-08-26 06:55:04,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 06:55:04,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 06:55:04,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 540 transitions. [2023-08-26 06:55:04,129 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5660377358490566 [2023-08-26 06:55:04,129 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 540 transitions. [2023-08-26 06:55:04,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 540 transitions. [2023-08-26 06:55:04,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:55:04,129 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 540 transitions. [2023-08-26 06:55:04,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 90.0) internal successors, (540), 6 states have internal predecessors, (540), 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 06:55:04,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 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 06:55:04,132 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 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 06:55:04,132 INFO L175 Difference]: Start difference. First operand has 72 places, 87 transitions, 414 flow. Second operand 6 states and 540 transitions. [2023-08-26 06:55:04,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 173 transitions, 1115 flow [2023-08-26 06:55:04,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 173 transitions, 1107 flow, removed 4 selfloop flow, removed 0 redundant places. [2023-08-26 06:55:04,138 INFO L231 Difference]: Finished difference. Result has 81 places, 119 transitions, 753 flow [2023-08-26 06:55:04,138 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=753, PETRI_PLACES=81, PETRI_TRANSITIONS=119} [2023-08-26 06:55:04,140 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 29 predicate places. [2023-08-26 06:55:04,140 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 119 transitions, 753 flow [2023-08-26 06:55:04,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.66666666666667) internal successors, (442), 6 states have internal predecessors, (442), 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 06:55:04,140 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:55:04,141 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] [2023-08-26 06:55:04,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 06:55:04,141 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-26 06:55:04,143 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:55:04,144 INFO L85 PathProgramCache]: Analyzing trace with hash -2048781436, now seen corresponding path program 1 times [2023-08-26 06:55:04,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:55:04,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848744322] [2023-08-26 06:55:04,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:55:04,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:55:04,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:55:04,369 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 06:55:04,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:55:04,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848744322] [2023-08-26 06:55:04,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848744322] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:55:04,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:55:04,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-26 06:55:04,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524399981] [2023-08-26 06:55:04,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:55:04,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-26 06:55:04,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:55:04,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-26 06:55:04,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-08-26 06:55:04,372 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 159 [2023-08-26 06:55:04,373 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 119 transitions, 753 flow. Second operand has 8 states, 8 states have (on average 67.625) internal successors, (541), 8 states have internal predecessors, (541), 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 06:55:04,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:55:04,373 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 159 [2023-08-26 06:55:04,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:55:04,509 INFO L124 PetriNetUnfolderBase]: 233/585 cut-off events. [2023-08-26 06:55:04,510 INFO L125 PetriNetUnfolderBase]: For 877/877 co-relation queries the response was YES. [2023-08-26 06:55:04,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2451 conditions, 585 events. 233/585 cut-off events. For 877/877 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2772 event pairs, 61 based on Foata normal form. 11/593 useless extension candidates. Maximal degree in co-relation 2429. Up to 427 conditions per place. [2023-08-26 06:55:04,512 INFO L140 encePairwiseOnDemand]: 152/159 looper letters, 119 selfloop transitions, 26 changer transitions 9/161 dead transitions. [2023-08-26 06:55:04,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 161 transitions, 1377 flow [2023-08-26 06:55:04,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-26 06:55:04,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-26 06:55:04,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 522 transitions. [2023-08-26 06:55:04,514 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46900269541778977 [2023-08-26 06:55:04,514 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 522 transitions. [2023-08-26 06:55:04,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 522 transitions. [2023-08-26 06:55:04,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:55:04,514 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 522 transitions. [2023-08-26 06:55:04,515 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 74.57142857142857) internal successors, (522), 7 states have internal predecessors, (522), 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 06:55:04,516 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 159.0) internal successors, (1272), 8 states have internal predecessors, (1272), 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 06:55:04,516 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 159.0) internal successors, (1272), 8 states have internal predecessors, (1272), 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 06:55:04,516 INFO L175 Difference]: Start difference. First operand has 81 places, 119 transitions, 753 flow. Second operand 7 states and 522 transitions. [2023-08-26 06:55:04,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 161 transitions, 1377 flow [2023-08-26 06:55:04,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 161 transitions, 1328 flow, removed 15 selfloop flow, removed 4 redundant places. [2023-08-26 06:55:04,524 INFO L231 Difference]: Finished difference. Result has 82 places, 117 transitions, 745 flow [2023-08-26 06:55:04,524 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=700, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=745, PETRI_PLACES=82, PETRI_TRANSITIONS=117} [2023-08-26 06:55:04,524 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 30 predicate places. [2023-08-26 06:55:04,524 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 117 transitions, 745 flow [2023-08-26 06:55:04,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 67.625) internal successors, (541), 8 states have internal predecessors, (541), 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 06:55:04,525 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:55:04,525 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] [2023-08-26 06:55:04,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 06:55:04,525 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-26 06:55:04,526 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:55:04,526 INFO L85 PathProgramCache]: Analyzing trace with hash -542539094, now seen corresponding path program 1 times [2023-08-26 06:55:04,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:55:04,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804758021] [2023-08-26 06:55:04,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:55:04,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:55:04,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:55:04,815 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 06:55:04,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:55:04,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804758021] [2023-08-26 06:55:04,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804758021] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:55:04,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:55:04,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-26 06:55:04,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117911949] [2023-08-26 06:55:04,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:55:04,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-26 06:55:04,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:55:04,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-26 06:55:04,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-08-26 06:55:04,817 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 159 [2023-08-26 06:55:04,819 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 117 transitions, 745 flow. Second operand has 8 states, 8 states have (on average 69.625) internal successors, (557), 8 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 06:55:04,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:55:04,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 159 [2023-08-26 06:55:04,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:55:05,041 INFO L124 PetriNetUnfolderBase]: 214/550 cut-off events. [2023-08-26 06:55:05,041 INFO L125 PetriNetUnfolderBase]: For 816/816 co-relation queries the response was YES. [2023-08-26 06:55:05,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2363 conditions, 550 events. 214/550 cut-off events. For 816/816 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2596 event pairs, 40 based on Foata normal form. 10/559 useless extension candidates. Maximal degree in co-relation 2343. Up to 202 conditions per place. [2023-08-26 06:55:05,044 INFO L140 encePairwiseOnDemand]: 147/159 looper letters, 125 selfloop transitions, 51 changer transitions 7/190 dead transitions. [2023-08-26 06:55:05,044 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 190 transitions, 1568 flow [2023-08-26 06:55:05,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-26 06:55:05,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-26 06:55:05,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 584 transitions. [2023-08-26 06:55:05,045 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5247079964061097 [2023-08-26 06:55:05,045 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 584 transitions. [2023-08-26 06:55:05,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 584 transitions. [2023-08-26 06:55:05,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:55:05,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 584 transitions. [2023-08-26 06:55:05,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 83.42857142857143) internal successors, (584), 7 states have internal predecessors, (584), 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 06:55:05,048 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 159.0) internal successors, (1272), 8 states have internal predecessors, (1272), 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 06:55:05,048 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 159.0) internal successors, (1272), 8 states have internal predecessors, (1272), 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 06:55:05,048 INFO L175 Difference]: Start difference. First operand has 82 places, 117 transitions, 745 flow. Second operand 7 states and 584 transitions. [2023-08-26 06:55:05,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 190 transitions, 1568 flow [2023-08-26 06:55:05,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 190 transitions, 1410 flow, removed 18 selfloop flow, removed 7 redundant places. [2023-08-26 06:55:05,055 INFO L231 Difference]: Finished difference. Result has 85 places, 124 transitions, 911 flow [2023-08-26 06:55:05,055 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=669, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=911, PETRI_PLACES=85, PETRI_TRANSITIONS=124} [2023-08-26 06:55:05,055 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 33 predicate places. [2023-08-26 06:55:05,055 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 124 transitions, 911 flow [2023-08-26 06:55:05,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 69.625) internal successors, (557), 8 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 06:55:05,056 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:55:05,056 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, 1] [2023-08-26 06:55:05,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-26 06:55:05,056 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-26 06:55:05,056 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:55:05,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1027263996, now seen corresponding path program 1 times [2023-08-26 06:55:05,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:55:05,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175065162] [2023-08-26 06:55:05,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:55:05,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:55:05,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 06:55:05,071 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 06:55:05,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 06:55:05,092 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 06:55:05,092 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 06:55:05,092 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 15 remaining) [2023-08-26 06:55:05,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2023-08-26 06:55:05,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2023-08-26 06:55:05,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2023-08-26 06:55:05,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2023-08-26 06:55:05,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2023-08-26 06:55:05,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-08-26 06:55:05,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2023-08-26 06:55:05,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2023-08-26 06:55:05,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2023-08-26 06:55:05,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2023-08-26 06:55:05,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2023-08-26 06:55:05,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2023-08-26 06:55:05,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2023-08-26 06:55:05,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2023-08-26 06:55:05,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-26 06:55:05,095 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:55:05,099 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 06:55:05,099 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 06:55:05,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 06:55:05 BasicIcfg [2023-08-26 06:55:05,121 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 06:55:05,121 INFO L158 Benchmark]: Toolchain (without parser) took 6486.21ms. Allocated memory was 314.6MB in the beginning and 453.0MB in the end (delta: 138.4MB). Free memory was 288.8MB in the beginning and 287.4MB in the end (delta: 1.4MB). Peak memory consumption was 142.5MB. Max. memory is 16.0GB. [2023-08-26 06:55:05,121 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 314.6MB. Free memory is still 290.6MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 06:55:05,121 INFO L158 Benchmark]: CACSL2BoogieTranslator took 500.46ms. Allocated memory is still 314.6MB. Free memory was 288.8MB in the beginning and 250.9MB in the end (delta: 37.9MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. [2023-08-26 06:55:05,122 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.89ms. Allocated memory is still 314.6MB. Free memory was 250.9MB in the beginning and 248.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 06:55:05,122 INFO L158 Benchmark]: Boogie Preprocessor took 28.11ms. Allocated memory is still 314.6MB. Free memory was 248.5MB in the beginning and 246.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 06:55:05,122 INFO L158 Benchmark]: RCFGBuilder took 370.74ms. Allocated memory is still 314.6MB. Free memory was 246.7MB in the beginning and 280.9MB in the end (delta: -34.2MB). Peak memory consumption was 11.8MB. Max. memory is 16.0GB. [2023-08-26 06:55:05,122 INFO L158 Benchmark]: TraceAbstraction took 5526.48ms. Allocated memory was 314.6MB in the beginning and 453.0MB in the end (delta: 138.4MB). Free memory was 279.8MB in the beginning and 287.4MB in the end (delta: -7.6MB). Peak memory consumption was 130.7MB. Max. memory is 16.0GB. [2023-08-26 06:55:05,123 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 314.6MB. Free memory is still 290.6MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 500.46ms. Allocated memory is still 314.6MB. Free memory was 288.8MB in the beginning and 250.9MB in the end (delta: 37.9MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 56.89ms. Allocated memory is still 314.6MB. Free memory was 250.9MB in the beginning and 248.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 28.11ms. Allocated memory is still 314.6MB. Free memory was 248.5MB in the beginning and 246.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 370.74ms. Allocated memory is still 314.6MB. Free memory was 246.7MB in the beginning and 280.9MB in the end (delta: -34.2MB). Peak memory consumption was 11.8MB. Max. memory is 16.0GB. * TraceAbstraction took 5526.48ms. Allocated memory was 314.6MB in the beginning and 453.0MB in the end (delta: 138.4MB). Free memory was 279.8MB in the beginning and 287.4MB in the end (delta: -7.6MB). Peak memory consumption was 130.7MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 261]: Unsoundness Warning unspecified type, defaulting to int C: short [261] - GenericResultAtLocation [Line: 261]: Unsoundness Warning unspecified type, defaulting to int C: short [261] - GenericResultAtLocation [Line: 1044]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [1044] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 103 PlacesBefore, 52 PlacesAfterwards, 99 TransitionsBefore, 48 TransitionsAfterwards, 2040 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 59 TotalNumberOfCompositions, 15676 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4815, independent: 4167, independent conditional: 0, independent unconditional: 4167, dependent: 648, dependent conditional: 0, dependent unconditional: 648, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 883, independent: 811, independent conditional: 0, independent unconditional: 811, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4815, independent: 3356, independent conditional: 0, independent unconditional: 3356, dependent: 576, dependent conditional: 0, dependent unconditional: 576, unknown: 883, unknown conditional: 0, unknown unconditional: 883] , Statistics on independence cache: Total cache size (in pairs): 278, Positive cache size: 234, Positive conditional cache size: 0, Positive unconditional cache size: 234, Negative cache size: 44, Negative conditional cache size: 0, Negative unconditional cache size: 44, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 1241]: Data race detected Data race detected The following path leads to a data race: [L1223] 0 int *x; [L1224] 0 int *y; [L1225] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1234] 0 pthread_t id; [L1235] 0 x = malloc(sizeof(int)) [L1236] 0 y = malloc(sizeof(int)) [L1237] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, id={5:0}, m={1:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x={-3:0}, y={-2:0}] [L1239] EXPR 0 *x VAL [arg={0:0}, id={5:0}, m={1:0}, x={-3:0}, y={-2:0}] [L1239] EXPR 0 \read(*x) VAL [\read(*x)=27, arg={0:0}, id={5:0}, m={1:0}, x={-3:0}, y={-2:0}] [L1239] 0 printf("%d\n",*x) [L1241] EXPR 0 *y VAL [arg={0:0}, arg={0:0}, id={5:0}, m={1:0}, pthread_mutex_lock(&m)=0, x={-3:0}, y={-2:0}] [L1241] EXPR 0 \read(*y) VAL [\read(*y)=25, arg={0:0}, arg={0:0}, id={5:0}, m={1:0}, pthread_mutex_lock(&m)=0, x={-3:0}, y={-2:0}] [L1228] EXPR 1 *x VAL [arg={0:0}, arg={0:0}, m={1:0}, x={-3:0}, y={-2:0}] [L1228] 1 *x = 3 VAL [arg={0:0}, arg={0:0}, m={1:0}, x={-3:0}, y={-2:0}] [L1229] EXPR 1 *y VAL [arg={0:0}, arg={0:0}, m={1:0}, x={-3:0}, y={-2:0}] [L1229] 1 *y = 8 VAL [arg={0:0}, arg={0:0}, m={1:0}, x={-3:0}, y={-2:0}] [L1229] 1 *y = 8 VAL [*y = 8=28, arg={0:0}, arg={0:0}, m={1:0}, x={-3:0}, y={-2:0}] [L1241] 0 printf("%d\n",*y) VAL [*y = 8=28, \read(*y)=25, arg={0:0}, arg={0:0}, id={5:0}, m={1:0}, x={-3:0}, y={-2:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: x = malloc(sizeof(int)) [1235] * C: *y = 8 [1229] * C: *x = 3 [1228] * C: y = malloc(sizeof(int)) [1236] * C: *x = 3 [1228] * C: *x = 3 [1228] * C: *x = 3 [1228] and C: printf("%d\n",*y) [1241] - UnprovableResult [Line: 1235]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1236]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1239]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1239]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1241]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1237]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 133 locations, 15 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: 5.4s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 251 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 251 mSDsluCounter, 62 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 129 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1606 IncrementalHoareTripleChecker+Invalid, 1735 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 129 mSolverCounterUnsat, 62 mSDtfsCounter, 1606 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=911occurred in iteration=10, InterpolantAutomatonStates: 49, 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, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 179 NumberOfCodeBlocks, 179 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 136 ConstructedInterpolants, 0 QuantifiedInterpolants, 848 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 RESULT: Ultimate proved your program to be incorrect! [2023-08-26 06:55:05,153 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...