/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/ldv-races/race-1_3b-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 06:01:36,870 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 06:01:36,928 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 06:01:36,932 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 06:01:36,932 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 06:01:36,961 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 06:01:36,961 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 06:01:36,965 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 06:01:36,965 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 06:01:36,965 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 06:01:36,966 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 06:01:36,966 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 06:01:36,966 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 06:01:36,966 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 06:01:36,967 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 06:01:36,967 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 06:01:36,967 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 06:01:36,967 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 06:01:36,967 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 06:01:36,968 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 06:01:36,968 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 06:01:36,970 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 06:01:36,971 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 06:01:36,971 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 06:01:36,973 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 06:01:36,973 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 06:01:36,973 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 06:01:36,973 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 06:01:36,974 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 06:01:36,974 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 06:01:36,974 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 06:01:36,974 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 06:01:36,974 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 06:01:36,974 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 06:01:36,975 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 06:01:36,975 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 06:01:37,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 06:01:37,207 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 06:01:37,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 06:01:37,209 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 06:01:37,209 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 06:01:37,210 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_3b-join.i [2023-08-26 06:01:38,129 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 06:01:38,413 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 06:01:38,413 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3b-join.i [2023-08-26 06:01:38,433 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d549a1db8/b2082522c4f643d78ab105ebe629ef01/FLAGe2470ef16 [2023-08-26 06:01:38,446 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d549a1db8/b2082522c4f643d78ab105ebe629ef01 [2023-08-26 06:01:38,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 06:01:38,451 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 06:01:38,453 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 06:01:38,453 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 06:01:38,455 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 06:01:38,456 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 06:01:38" (1/1) ... [2023-08-26 06:01:38,456 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10dff625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:38, skipping insertion in model container [2023-08-26 06:01:38,457 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 06:01:38" (1/1) ... [2023-08-26 06:01:38,503 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 06:01:38,910 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 06:01:38,923 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 06:01:38,934 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [237] [2023-08-26 06:01:38,935 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [237] [2023-08-26 06:01:38,941 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [729] [2023-08-26 06:01:38,959 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 06:01:39,037 INFO L206 MainTranslator]: Completed translation [2023-08-26 06:01:39,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:39 WrapperNode [2023-08-26 06:01:39,038 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 06:01:39,038 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 06:01:39,038 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 06:01:39,038 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 06:01:39,043 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:39" (1/1) ... [2023-08-26 06:01:39,067 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:39" (1/1) ... [2023-08-26 06:01:39,098 INFO L138 Inliner]: procedures = 480, calls = 28, calls flagged for inlining = 9, calls inlined = 12, statements flattened = 127 [2023-08-26 06:01:39,098 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 06:01:39,098 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 06:01:39,099 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 06:01:39,099 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 06:01:39,103 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:39" (1/1) ... [2023-08-26 06:01:39,104 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:39" (1/1) ... [2023-08-26 06:01:39,115 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:39" (1/1) ... [2023-08-26 06:01:39,116 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:39" (1/1) ... [2023-08-26 06:01:39,122 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:39" (1/1) ... [2023-08-26 06:01:39,124 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:39" (1/1) ... [2023-08-26 06:01:39,139 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:39" (1/1) ... [2023-08-26 06:01:39,141 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:39" (1/1) ... [2023-08-26 06:01:39,144 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 06:01:39,145 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 06:01:39,145 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 06:01:39,145 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 06:01:39,146 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:39" (1/1) ... [2023-08-26 06:01:39,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 06:01:39,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 06:01:39,173 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 06:01:39,178 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 06:01:39,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 06:01:39,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 06:01:39,195 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 06:01:39,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 06:01:39,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-26 06:01:39,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 06:01:39,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 06:01:39,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 06:01:39,195 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-26 06:01:39,195 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-26 06:01:39,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 06:01:39,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 06:01:39,196 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 06:01:39,443 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 06:01:39,444 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 06:01:39,613 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 06:01:39,622 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 06:01:39,623 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 06:01:39,624 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 06:01:39 BoogieIcfgContainer [2023-08-26 06:01:39,625 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 06:01:39,626 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 06:01:39,626 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 06:01:39,628 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 06:01:39,629 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 06:01:38" (1/3) ... [2023-08-26 06:01:39,629 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e08cac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 06:01:39, skipping insertion in model container [2023-08-26 06:01:39,629 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:39" (2/3) ... [2023-08-26 06:01:39,629 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e08cac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 06:01:39, skipping insertion in model container [2023-08-26 06:01:39,629 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 06:01:39" (3/3) ... [2023-08-26 06:01:39,631 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_3b-join.i [2023-08-26 06:01:39,642 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 06:01:39,643 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-08-26 06:01:39,643 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 06:01:39,681 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-26 06:01:39,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 155 places, 161 transitions, 330 flow [2023-08-26 06:01:39,779 INFO L124 PetriNetUnfolderBase]: 11/200 cut-off events. [2023-08-26 06:01:39,780 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-26 06:01:39,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 200 events. 11/200 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 338 event pairs, 0 based on Foata normal form. 0/169 useless extension candidates. Maximal degree in co-relation 115. Up to 4 conditions per place. [2023-08-26 06:01:39,784 INFO L82 GeneralOperation]: Start removeDead. Operand has 155 places, 161 transitions, 330 flow [2023-08-26 06:01:39,789 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 148 places, 151 transitions, 308 flow [2023-08-26 06:01:39,791 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 06:01:39,800 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 148 places, 151 transitions, 308 flow [2023-08-26 06:01:39,803 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 148 places, 151 transitions, 308 flow [2023-08-26 06:01:39,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 148 places, 151 transitions, 308 flow [2023-08-26 06:01:39,835 INFO L124 PetriNetUnfolderBase]: 8/191 cut-off events. [2023-08-26 06:01:39,835 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-26 06:01:39,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 191 events. 8/191 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 322 event pairs, 0 based on Foata normal form. 0/163 useless extension candidates. Maximal degree in co-relation 115. Up to 4 conditions per place. [2023-08-26 06:01:39,839 INFO L119 LiptonReduction]: Number of co-enabled transitions 1032 [2023-08-26 06:01:43,355 INFO L134 LiptonReduction]: Checked pairs total: 2574 [2023-08-26 06:01:43,356 INFO L136 LiptonReduction]: Total number of compositions: 193 [2023-08-26 06:01:43,370 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 06:01:43,376 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;@52fa5062, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 06:01:43,376 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-08-26 06:01:43,377 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 06:01:43,377 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-26 06:01:43,377 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:01:43,377 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:01:43,377 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 06:01:43,378 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2023-08-26 06:01:43,381 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:01:43,381 INFO L85 PathProgramCache]: Analyzing trace with hash 588, now seen corresponding path program 1 times [2023-08-26 06:01:43,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:01:43,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274565244] [2023-08-26 06:01:43,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:01:43,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:01:43,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:01:43,557 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 06:01:43,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:01:43,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274565244] [2023-08-26 06:01:43,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274565244] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:01:43,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:01:43,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-26 06:01:43,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860731497] [2023-08-26 06:01:43,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:01:43,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 06:01:43,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:01:43,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 06:01:43,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 06:01:43,582 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 354 [2023-08-26 06:01:43,584 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 31 transitions, 68 flow. Second operand has 2 states, 2 states have (on average 147.5) internal successors, (295), 2 states have internal predecessors, (295), 0 states have call successors, (0), 0 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 06:01:43,584 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:01:43,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 354 [2023-08-26 06:01:43,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:01:43,626 INFO L124 PetriNetUnfolderBase]: 24/92 cut-off events. [2023-08-26 06:01:43,626 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-26 06:01:43,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 92 events. 24/92 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 345 event pairs, 24 based on Foata normal form. 1/69 useless extension candidates. Maximal degree in co-relation 135. Up to 71 conditions per place. [2023-08-26 06:01:43,628 INFO L140 encePairwiseOnDemand]: 344/354 looper letters, 14 selfloop transitions, 0 changer transitions 1/21 dead transitions. [2023-08-26 06:01:43,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 21 transitions, 78 flow [2023-08-26 06:01:43,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 06:01:43,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 06:01:43,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 319 transitions. [2023-08-26 06:01:43,644 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4505649717514124 [2023-08-26 06:01:43,644 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 319 transitions. [2023-08-26 06:01:43,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 319 transitions. [2023-08-26 06:01:43,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:01:43,649 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 319 transitions. [2023-08-26 06:01:43,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 159.5) internal successors, (319), 2 states have internal predecessors, (319), 0 states have call successors, (0), 0 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 06:01:43,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 354.0) internal successors, (1062), 3 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:01:43,657 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 354.0) internal successors, (1062), 3 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:01:43,658 INFO L175 Difference]: Start difference. First operand has 33 places, 31 transitions, 68 flow. Second operand 2 states and 319 transitions. [2023-08-26 06:01:43,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 21 transitions, 78 flow [2023-08-26 06:01:43,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 21 transitions, 74 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 06:01:43,660 INFO L231 Difference]: Finished difference. Result has 23 places, 20 transitions, 41 flow [2023-08-26 06:01:43,661 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=41, PETRI_PLACES=23, PETRI_TRANSITIONS=20} [2023-08-26 06:01:43,666 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -10 predicate places. [2023-08-26 06:01:43,666 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 20 transitions, 41 flow [2023-08-26 06:01:43,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 147.5) internal successors, (295), 2 states have internal predecessors, (295), 0 states have call successors, (0), 0 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 06:01:43,667 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:01:43,667 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-26 06:01:43,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 06:01:43,667 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2023-08-26 06:01:43,673 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:01:43,673 INFO L85 PathProgramCache]: Analyzing trace with hash 18648638, now seen corresponding path program 1 times [2023-08-26 06:01:43,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:01:43,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617235104] [2023-08-26 06:01:43,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:01:43,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:01:43,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:01:43,795 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 06:01:43,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:01:43,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617235104] [2023-08-26 06:01:43,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617235104] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:01:43,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:01:43,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 06:01:43,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750188760] [2023-08-26 06:01:43,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:01:43,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 06:01:43,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:01:43,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 06:01:43,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 06:01:43,799 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 354 [2023-08-26 06:01:43,799 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 20 transitions, 41 flow. Second operand has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 0 states have call successors, (0), 0 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 06:01:43,799 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:01:43,799 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 354 [2023-08-26 06:01:43,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:01:43,834 INFO L124 PetriNetUnfolderBase]: 24/80 cut-off events. [2023-08-26 06:01:43,834 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:01:43,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 80 events. 24/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 240 event pairs, 24 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 144. Up to 63 conditions per place. [2023-08-26 06:01:43,835 INFO L140 encePairwiseOnDemand]: 351/354 looper letters, 13 selfloop transitions, 0 changer transitions 2/21 dead transitions. [2023-08-26 06:01:43,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 21 transitions, 73 flow [2023-08-26 06:01:43,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 06:01:43,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 06:01:43,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 436 transitions. [2023-08-26 06:01:43,837 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4105461393596987 [2023-08-26 06:01:43,837 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 436 transitions. [2023-08-26 06:01:43,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 436 transitions. [2023-08-26 06:01:43,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:01:43,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 436 transitions. [2023-08-26 06:01:43,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 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 06:01:43,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 354.0) internal successors, (1416), 4 states have internal predecessors, (1416), 0 states have call successors, (0), 0 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 06:01:43,841 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 354.0) internal successors, (1416), 4 states have internal predecessors, (1416), 0 states have call successors, (0), 0 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 06:01:43,841 INFO L175 Difference]: Start difference. First operand has 23 places, 20 transitions, 41 flow. Second operand 3 states and 436 transitions. [2023-08-26 06:01:43,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 21 transitions, 73 flow [2023-08-26 06:01:43,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 21 transitions, 73 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 06:01:43,842 INFO L231 Difference]: Finished difference. Result has 25 places, 19 transitions, 43 flow [2023-08-26 06:01:43,842 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=41, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=43, PETRI_PLACES=25, PETRI_TRANSITIONS=19} [2023-08-26 06:01:43,842 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -8 predicate places. [2023-08-26 06:01:43,842 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 19 transitions, 43 flow [2023-08-26 06:01:43,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 0 states have call successors, (0), 0 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 06:01:43,843 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:01:43,843 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-26 06:01:43,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 06:01:43,843 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2023-08-26 06:01:43,843 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:01:43,843 INFO L85 PathProgramCache]: Analyzing trace with hash 571574006, now seen corresponding path program 1 times [2023-08-26 06:01:43,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:01:43,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940382450] [2023-08-26 06:01:43,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:01:43,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:01:43,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:01:43,877 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 06:01:43,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:01:43,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940382450] [2023-08-26 06:01:43,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940382450] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:01:43,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:01:43,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 06:01:43,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417911185] [2023-08-26 06:01:43,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:01:43,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 06:01:43,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:01:43,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 06:01:43,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 06:01:43,879 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 354 [2023-08-26 06:01:43,880 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 43 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 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 06:01:43,880 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:01:43,880 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 354 [2023-08-26 06:01:43,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:01:43,920 INFO L124 PetriNetUnfolderBase]: 57/134 cut-off events. [2023-08-26 06:01:43,920 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-26 06:01:43,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 134 events. 57/134 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 452 event pairs, 34 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 277. Up to 110 conditions per place. [2023-08-26 06:01:43,921 INFO L140 encePairwiseOnDemand]: 349/354 looper letters, 26 selfloop transitions, 4 changer transitions 3/33 dead transitions. [2023-08-26 06:01:43,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 33 transitions, 141 flow [2023-08-26 06:01:43,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 06:01:43,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 06:01:43,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 388 transitions. [2023-08-26 06:01:43,923 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3653483992467043 [2023-08-26 06:01:43,923 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 388 transitions. [2023-08-26 06:01:43,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 388 transitions. [2023-08-26 06:01:43,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:01:43,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 388 transitions. [2023-08-26 06:01:43,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 0 states have call successors, (0), 0 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 06:01:43,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 354.0) internal successors, (1416), 4 states have internal predecessors, (1416), 0 states have call successors, (0), 0 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 06:01:43,926 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 354.0) internal successors, (1416), 4 states have internal predecessors, (1416), 0 states have call successors, (0), 0 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 06:01:43,926 INFO L175 Difference]: Start difference. First operand has 25 places, 19 transitions, 43 flow. Second operand 3 states and 388 transitions. [2023-08-26 06:01:43,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 33 transitions, 141 flow [2023-08-26 06:01:43,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 33 transitions, 133 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-08-26 06:01:43,927 INFO L231 Difference]: Finished difference. Result has 26 places, 21 transitions, 63 flow [2023-08-26 06:01:43,927 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=39, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=63, PETRI_PLACES=26, PETRI_TRANSITIONS=21} [2023-08-26 06:01:43,927 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -7 predicate places. [2023-08-26 06:01:43,928 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 21 transitions, 63 flow [2023-08-26 06:01:43,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 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 06:01:43,928 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:01:43,928 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-26 06:01:43,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 06:01:43,928 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2023-08-26 06:01:43,928 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:01:43,929 INFO L85 PathProgramCache]: Analyzing trace with hash 538893567, now seen corresponding path program 1 times [2023-08-26 06:01:43,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:01:43,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8558586] [2023-08-26 06:01:43,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:01:43,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:01:43,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:01:43,962 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 06:01:43,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:01:43,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8558586] [2023-08-26 06:01:43,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8558586] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:01:43,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:01:43,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 06:01:43,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211560248] [2023-08-26 06:01:43,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:01:43,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 06:01:43,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:01:43,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 06:01:43,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 06:01:43,965 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 354 [2023-08-26 06:01:43,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 21 transitions, 63 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 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 06:01:43,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:01:43,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 354 [2023-08-26 06:01:43,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:01:44,001 INFO L124 PetriNetUnfolderBase]: 51/123 cut-off events. [2023-08-26 06:01:44,001 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES. [2023-08-26 06:01:44,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 326 conditions, 123 events. 51/123 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 390 event pairs, 28 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 320. Up to 106 conditions per place. [2023-08-26 06:01:44,002 INFO L140 encePairwiseOnDemand]: 349/354 looper letters, 23 selfloop transitions, 6 changer transitions 0/29 dead transitions. [2023-08-26 06:01:44,002 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 29 transitions, 152 flow [2023-08-26 06:01:44,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 06:01:44,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 06:01:44,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 376 transitions. [2023-08-26 06:01:44,003 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3540489642184557 [2023-08-26 06:01:44,004 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 376 transitions. [2023-08-26 06:01:44,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 376 transitions. [2023-08-26 06:01:44,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:01:44,004 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 376 transitions. [2023-08-26 06:01:44,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 0 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 06:01:44,006 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 354.0) internal successors, (1416), 4 states have internal predecessors, (1416), 0 states have call successors, (0), 0 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 06:01:44,007 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 354.0) internal successors, (1416), 4 states have internal predecessors, (1416), 0 states have call successors, (0), 0 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 06:01:44,007 INFO L175 Difference]: Start difference. First operand has 26 places, 21 transitions, 63 flow. Second operand 3 states and 376 transitions. [2023-08-26 06:01:44,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 29 transitions, 152 flow [2023-08-26 06:01:44,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 29 transitions, 145 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 06:01:44,008 INFO L231 Difference]: Finished difference. Result has 28 places, 25 transitions, 107 flow [2023-08-26 06:01:44,008 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=107, PETRI_PLACES=28, PETRI_TRANSITIONS=25} [2023-08-26 06:01:44,009 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -5 predicate places. [2023-08-26 06:01:44,009 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 25 transitions, 107 flow [2023-08-26 06:01:44,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 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 06:01:44,009 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:01:44,009 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:01:44,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 06:01:44,010 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2023-08-26 06:01:44,010 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:01:44,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1700046121, now seen corresponding path program 1 times [2023-08-26 06:01:44,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:01:44,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990097403] [2023-08-26 06:01:44,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:01:44,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:01:44,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 06:01:44,031 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 06:01:44,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 06:01:44,059 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 06:01:44,059 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 06:01:44,060 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (15 of 16 remaining) [2023-08-26 06:01:44,061 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2023-08-26 06:01:44,061 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2023-08-26 06:01:44,061 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2023-08-26 06:01:44,061 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (11 of 16 remaining) [2023-08-26 06:01:44,061 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2023-08-26 06:01:44,061 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 16 remaining) [2023-08-26 06:01:44,061 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONASSERT (8 of 16 remaining) [2023-08-26 06:01:44,062 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (7 of 16 remaining) [2023-08-26 06:01:44,062 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (6 of 16 remaining) [2023-08-26 06:01:44,062 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONASSERT (5 of 16 remaining) [2023-08-26 06:01:44,062 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (4 of 16 remaining) [2023-08-26 06:01:44,064 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2023-08-26 06:01:44,065 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (2 of 16 remaining) [2023-08-26 06:01:44,065 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONASSERT (1 of 16 remaining) [2023-08-26 06:01:44,065 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 16 remaining) [2023-08-26 06:01:44,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 06:01:44,069 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-26 06:01:44,072 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 06:01:44,072 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 06:01:44,099 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 06:01:44 BasicIcfg [2023-08-26 06:01:44,099 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 06:01:44,100 INFO L158 Benchmark]: Toolchain (without parser) took 5648.56ms. Allocated memory was 421.5MB in the beginning and 532.7MB in the end (delta: 111.1MB). Free memory was 394.5MB in the beginning and 286.0MB in the end (delta: 108.5MB). Peak memory consumption was 220.2MB. Max. memory is 16.0GB. [2023-08-26 06:01:44,100 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 421.5MB. Free memory is still 398.7MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 06:01:44,101 INFO L158 Benchmark]: CACSL2BoogieTranslator took 584.95ms. Allocated memory is still 421.5MB. Free memory was 394.5MB in the beginning and 394.8MB in the end (delta: -300.3kB). Peak memory consumption was 61.1MB. Max. memory is 16.0GB. [2023-08-26 06:01:44,101 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.71ms. Allocated memory is still 421.5MB. Free memory was 394.8MB in the beginning and 391.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-26 06:01:44,105 INFO L158 Benchmark]: Boogie Preprocessor took 46.01ms. Allocated memory is still 421.5MB. Free memory was 391.8MB in the beginning and 388.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 06:01:44,105 INFO L158 Benchmark]: RCFGBuilder took 479.68ms. Allocated memory is still 421.5MB. Free memory was 388.7MB in the beginning and 366.6MB in the end (delta: 22.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-08-26 06:01:44,105 INFO L158 Benchmark]: TraceAbstraction took 4472.81ms. Allocated memory was 421.5MB in the beginning and 532.7MB in the end (delta: 111.1MB). Free memory was 365.6MB in the beginning and 286.0MB in the end (delta: 79.7MB). Peak memory consumption was 190.6MB. Max. memory is 16.0GB. [2023-08-26 06:01:44,106 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 421.5MB. Free memory is still 398.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 584.95ms. Allocated memory is still 421.5MB. Free memory was 394.5MB in the beginning and 394.8MB in the end (delta: -300.3kB). Peak memory consumption was 61.1MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 59.71ms. Allocated memory is still 421.5MB. Free memory was 394.8MB in the beginning and 391.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 46.01ms. Allocated memory is still 421.5MB. Free memory was 391.8MB in the beginning and 388.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 479.68ms. Allocated memory is still 421.5MB. Free memory was 388.7MB in the beginning and 366.6MB in the end (delta: 22.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * TraceAbstraction took 4472.81ms. Allocated memory was 421.5MB in the beginning and 532.7MB in the end (delta: 111.1MB). Free memory was 365.6MB in the beginning and 286.0MB in the end (delta: 79.7MB). Peak memory consumption was 190.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 237]: Unsoundness Warning unspecified type, defaulting to int C: short [237] - GenericResultAtLocation [Line: 237]: Unsoundness Warning unspecified type, defaulting to int C: short [237] - GenericResultAtLocation [Line: 729]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [729] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.6s, 148 PlacesBefore, 33 PlacesAfterwards, 151 TransitionsBefore, 31 TransitionsAfterwards, 1032 CoEnabledTransitionPairs, 9 FixpointIterations, 126 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 8 TrivialYvCompositions, 10 ConcurrentYvCompositions, 5 ChoiceCompositions, 193 TotalNumberOfCompositions, 2574 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1452, independent: 1233, independent conditional: 0, independent unconditional: 1233, dependent: 219, dependent conditional: 0, dependent unconditional: 219, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 589, independent: 561, independent conditional: 0, independent unconditional: 561, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1452, independent: 672, independent conditional: 0, independent unconditional: 672, dependent: 191, dependent conditional: 0, dependent unconditional: 191, unknown: 589, unknown conditional: 0, unknown unconditional: 589] , Statistics on independence cache: Total cache size (in pairs): 37, Positive cache size: 25, Positive conditional cache size: 0, Positive unconditional cache size: 25, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 1699]: Data race detected Data race detected The following path leads to a data race: [L1694] 0 pthread_t t1; [L1695] 0 pthread_mutex_t mutex; [L1696] 0 int pdev; [L1726] CALL, EXPR 0 module_init() [L1705] 0 pdev = 1 [L1706] EXPR 0 pdev==1 [L1706] CALL 0 ldv_assert(pdev==1) [L1693] COND FALSE 0 !(!expression) [L1706] RET 0 ldv_assert(pdev==1) [L1707] COND TRUE 0 __VERIFIER_nondet_int() [L1708] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={4:0}, pdev=1, pthread_create(&t1, ((void *)0), thread1, ((void *)0))=-1, t1={3:0}] [L1699] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=6, t1={3:0}] [L1709] 0 return 0; [L1726] RET, EXPR 0 module_init() [L1726] COND FALSE 0 !(module_init()!=0) [L1727] CALL 0 module_exit() [L1717] 0 void *status; [L1718] 0 pdev = 4 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev = 4=1151, pdev = 6=1155, pdev=4, status={5:0}, t1={3:0}] [L1699] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev = 6=1155, pdev=4, t1={3:0}] Now there is a data race on ~pdev~0 between C: pdev = 4 [1718] and C: pdev = 6 [1699] - UnprovableResult [Line: 1705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1691]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1712]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1691]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1718]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1691]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1722]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1691]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1708]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 166 locations, 16 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: 4.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 121 IncrementalHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 11 mSDtfsCounter, 121 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=4, InterpolantAutomatonStates: 11, 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, 0.2s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 06:01:44,146 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...