/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/pthread-atomic/szymanski-b.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 07:55:30,416 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 07:55:30,493 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 07:55:30,496 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 07:55:30,499 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 07:55:30,519 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 07:55:30,520 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 07:55:30,520 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 07:55:30,520 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 07:55:30,521 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 07:55:30,521 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 07:55:30,521 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 07:55:30,522 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 07:55:30,522 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 07:55:30,522 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 07:55:30,523 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 07:55:30,523 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 07:55:30,523 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 07:55:30,524 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 07:55:30,524 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 07:55:30,524 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 07:55:30,529 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 07:55:30,529 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 07:55:30,529 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 07:55:30,529 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 07:55:30,530 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 07:55:30,530 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 07:55:30,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 07:55:30,531 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 07:55:30,531 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 07:55:30,531 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 07:55:30,532 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 07:55:30,532 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 07:55:30,532 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 07:55:30,532 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 07:55:30,533 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 07:55:30,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 07:55:30,838 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 07:55:30,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 07:55:30,841 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 07:55:30,842 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 07:55:30,843 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/szymanski-b.i [2023-08-25 07:55:32,007 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 07:55:32,238 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 07:55:32,239 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski-b.i [2023-08-25 07:55:32,249 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/074f09a75/a7ae93272602463d907a8ff672d44756/FLAGc72894b4c [2023-08-25 07:55:32,260 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/074f09a75/a7ae93272602463d907a8ff672d44756 [2023-08-25 07:55:32,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 07:55:32,263 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 07:55:32,264 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 07:55:32,264 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 07:55:32,266 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 07:55:32,267 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:55:32" (1/1) ... [2023-08-25 07:55:32,268 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@269bcad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:32, skipping insertion in model container [2023-08-25 07:55:32,268 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:55:32" (1/1) ... [2023-08-25 07:55:32,298 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 07:55:32,505 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 07:55:32,515 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 07:55:32,546 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [249] [2023-08-25 07:55:32,548 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [249] [2023-08-25 07:55:32,588 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 07:55:32,625 INFO L206 MainTranslator]: Completed translation [2023-08-25 07:55:32,626 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:32 WrapperNode [2023-08-25 07:55:32,626 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 07:55:32,627 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 07:55:32,627 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 07:55:32,627 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 07:55:32,632 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:32" (1/1) ... [2023-08-25 07:55:32,661 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:32" (1/1) ... [2023-08-25 07:55:32,698 INFO L138 Inliner]: procedures = 167, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 204 [2023-08-25 07:55:32,699 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 07:55:32,700 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 07:55:32,700 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 07:55:32,700 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 07:55:32,708 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:32" (1/1) ... [2023-08-25 07:55:32,708 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:32" (1/1) ... [2023-08-25 07:55:32,712 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:32" (1/1) ... [2023-08-25 07:55:32,712 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:32" (1/1) ... [2023-08-25 07:55:32,728 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:32" (1/1) ... [2023-08-25 07:55:32,731 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:32" (1/1) ... [2023-08-25 07:55:32,732 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:32" (1/1) ... [2023-08-25 07:55:32,733 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:32" (1/1) ... [2023-08-25 07:55:32,736 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 07:55:32,742 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 07:55:32,742 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 07:55:32,742 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 07:55:32,742 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:32" (1/1) ... [2023-08-25 07:55:32,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 07:55:32,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 07:55:32,768 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 07:55:32,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 07:55:32,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 07:55:32,805 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2023-08-25 07:55:32,805 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2023-08-25 07:55:32,805 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-25 07:55:32,806 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-25 07:55:32,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 07:55:32,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 07:55:32,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 07:55:32,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 07:55:32,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 07:55:32,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 07:55:32,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 07:55:32,808 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 07:55:32,913 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 07:55:32,920 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 07:55:33,183 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 07:55:33,192 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 07:55:33,192 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-08-25 07:55:33,194 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:55:33 BoogieIcfgContainer [2023-08-25 07:55:33,194 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 07:55:33,196 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 07:55:33,196 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 07:55:33,198 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 07:55:33,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 07:55:32" (1/3) ... [2023-08-25 07:55:33,199 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb40e63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:55:33, skipping insertion in model container [2023-08-25 07:55:33,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:32" (2/3) ... [2023-08-25 07:55:33,199 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb40e63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:55:33, skipping insertion in model container [2023-08-25 07:55:33,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:55:33" (3/3) ... [2023-08-25 07:55:33,200 INFO L112 eAbstractionObserver]: Analyzing ICFG szymanski-b.i [2023-08-25 07:55:33,223 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 07:55:33,223 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2023-08-25 07:55:33,223 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 07:55:33,351 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-25 07:55:33,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 214 places, 231 transitions, 478 flow [2023-08-25 07:55:33,482 INFO L124 PetriNetUnfolderBase]: 24/229 cut-off events. [2023-08-25 07:55:33,482 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 07:55:33,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 229 events. 24/229 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 560 event pairs, 0 based on Foata normal form. 0/175 useless extension candidates. Maximal degree in co-relation 197. Up to 3 conditions per place. [2023-08-25 07:55:33,493 INFO L82 GeneralOperation]: Start removeDead. Operand has 214 places, 231 transitions, 478 flow [2023-08-25 07:55:33,506 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 203 places, 220 transitions, 449 flow [2023-08-25 07:55:33,508 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 07:55:33,515 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 203 places, 220 transitions, 449 flow [2023-08-25 07:55:33,517 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 203 places, 220 transitions, 449 flow [2023-08-25 07:55:33,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 203 places, 220 transitions, 449 flow [2023-08-25 07:55:33,587 INFO L124 PetriNetUnfolderBase]: 24/220 cut-off events. [2023-08-25 07:55:33,587 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 07:55:33,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 228 conditions, 220 events. 24/220 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 559 event pairs, 0 based on Foata normal form. 0/166 useless extension candidates. Maximal degree in co-relation 197. Up to 3 conditions per place. [2023-08-25 07:55:33,600 INFO L119 LiptonReduction]: Number of co-enabled transitions 21716 [2023-08-25 07:55:35,591 INFO L134 LiptonReduction]: Checked pairs total: 110196 [2023-08-25 07:55:35,592 INFO L136 LiptonReduction]: Total number of compositions: 108 [2023-08-25 07:55:35,613 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 07:55:35,619 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;@4c026265, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 07:55:35,619 INFO L358 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2023-08-25 07:55:35,621 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 07:55:35,621 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-08-25 07:55:35,622 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 07:55:35,622 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:55:35,622 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-25 07:55:35,622 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-25 07:55:35,627 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:55:35,627 INFO L85 PathProgramCache]: Analyzing trace with hash 840310744, now seen corresponding path program 1 times [2023-08-25 07:55:35,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:55:35,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218036957] [2023-08-25 07:55:35,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:55:35,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:55:35,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:55:35,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:55:35,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:55:35,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218036957] [2023-08-25 07:55:35,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218036957] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:55:35,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:55:35,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 07:55:35,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647781625] [2023-08-25 07:55:35,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:55:35,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 07:55:35,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:55:35,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 07:55:35,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 07:55:35,895 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 339 [2023-08-25 07:55:35,899 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 136 transitions, 281 flow. Second operand has 3 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:35,900 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:55:35,900 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 339 [2023-08-25 07:55:35,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:55:36,562 INFO L124 PetriNetUnfolderBase]: 3192/6450 cut-off events. [2023-08-25 07:55:36,563 INFO L125 PetriNetUnfolderBase]: For 66/66 co-relation queries the response was YES. [2023-08-25 07:55:36,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11387 conditions, 6450 events. 3192/6450 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 43776 event pairs, 2528 based on Foata normal form. 288/5244 useless extension candidates. Maximal degree in co-relation 11058. Up to 4682 conditions per place. [2023-08-25 07:55:36,602 INFO L140 encePairwiseOnDemand]: 319/339 looper letters, 98 selfloop transitions, 8 changer transitions 0/164 dead transitions. [2023-08-25 07:55:36,603 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 164 transitions, 552 flow [2023-08-25 07:55:36,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 07:55:36,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 07:55:36,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 658 transitions. [2023-08-25 07:55:36,621 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6470009832841691 [2023-08-25 07:55:36,621 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 658 transitions. [2023-08-25 07:55:36,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 658 transitions. [2023-08-25 07:55:36,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:55:36,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 658 transitions. [2023-08-25 07:55:36,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:36,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 339.0) internal successors, (1356), 4 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:36,637 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 339.0) internal successors, (1356), 4 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:36,639 INFO L175 Difference]: Start difference. First operand has 122 places, 136 transitions, 281 flow. Second operand 3 states and 658 transitions. [2023-08-25 07:55:36,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 164 transitions, 552 flow [2023-08-25 07:55:36,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 164 transitions, 546 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 07:55:36,649 INFO L231 Difference]: Finished difference. Result has 120 places, 132 transitions, 308 flow [2023-08-25 07:55:36,650 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=308, PETRI_PLACES=120, PETRI_TRANSITIONS=132} [2023-08-25 07:55:36,654 INFO L281 CegarLoopForPetriNet]: 122 programPoint places, -2 predicate places. [2023-08-25 07:55:36,654 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 132 transitions, 308 flow [2023-08-25 07:55:36,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:36,655 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:55:36,655 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:55:36,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 07:55:36,655 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-25 07:55:36,655 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:55:36,656 INFO L85 PathProgramCache]: Analyzing trace with hash 118012290, now seen corresponding path program 1 times [2023-08-25 07:55:36,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:55:36,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010292266] [2023-08-25 07:55:36,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:55:36,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:55:36,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:55:36,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:55:36,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:55:36,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010292266] [2023-08-25 07:55:36,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010292266] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:55:36,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:55:36,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 07:55:36,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949691283] [2023-08-25 07:55:36,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:55:36,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 07:55:36,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:55:36,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 07:55:36,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 07:55:36,726 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 339 [2023-08-25 07:55:36,727 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 132 transitions, 308 flow. Second operand has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 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) [2023-08-25 07:55:36,727 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:55:36,727 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 339 [2023-08-25 07:55:36,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:55:37,369 INFO L124 PetriNetUnfolderBase]: 3198/6483 cut-off events. [2023-08-25 07:55:37,370 INFO L125 PetriNetUnfolderBase]: For 319/389 co-relation queries the response was YES. [2023-08-25 07:55:37,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11825 conditions, 6483 events. 3198/6483 cut-off events. For 319/389 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 44488 event pairs, 2453 based on Foata normal form. 0/4935 useless extension candidates. Maximal degree in co-relation 11102. Up to 4631 conditions per place. [2023-08-25 07:55:37,408 INFO L140 encePairwiseOnDemand]: 330/339 looper letters, 99 selfloop transitions, 8 changer transitions 0/171 dead transitions. [2023-08-25 07:55:37,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 171 transitions, 607 flow [2023-08-25 07:55:37,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 07:55:37,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 07:55:37,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 640 transitions. [2023-08-25 07:55:37,411 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6293018682399213 [2023-08-25 07:55:37,411 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 640 transitions. [2023-08-25 07:55:37,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 640 transitions. [2023-08-25 07:55:37,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:55:37,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 640 transitions. [2023-08-25 07:55:37,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:37,415 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 339.0) internal successors, (1356), 4 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:37,416 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 339.0) internal successors, (1356), 4 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:37,416 INFO L175 Difference]: Start difference. First operand has 120 places, 132 transitions, 308 flow. Second operand 3 states and 640 transitions. [2023-08-25 07:55:37,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 171 transitions, 607 flow [2023-08-25 07:55:37,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 171 transitions, 597 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 07:55:37,423 INFO L231 Difference]: Finished difference. Result has 122 places, 139 transitions, 354 flow [2023-08-25 07:55:37,424 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=354, PETRI_PLACES=122, PETRI_TRANSITIONS=139} [2023-08-25 07:55:37,424 INFO L281 CegarLoopForPetriNet]: 122 programPoint places, 0 predicate places. [2023-08-25 07:55:37,424 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 139 transitions, 354 flow [2023-08-25 07:55:37,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 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) [2023-08-25 07:55:37,425 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:55:37,426 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:55:37,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 07:55:37,427 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-25 07:55:37,429 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:55:37,430 INFO L85 PathProgramCache]: Analyzing trace with hash 84935725, now seen corresponding path program 1 times [2023-08-25 07:55:37,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:55:37,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203271702] [2023-08-25 07:55:37,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:55:37,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:55:37,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:55:37,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:55:37,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:55:37,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203271702] [2023-08-25 07:55:37,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203271702] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:55:37,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:55:37,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 07:55:37,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497556620] [2023-08-25 07:55:37,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:55:37,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 07:55:37,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:55:37,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 07:55:37,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 07:55:37,476 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 339 [2023-08-25 07:55:37,477 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 139 transitions, 354 flow. Second operand has 3 states, 3 states have (on average 182.33333333333334) internal successors, (547), 3 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:37,477 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:55:37,477 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 339 [2023-08-25 07:55:37,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:55:38,344 INFO L124 PetriNetUnfolderBase]: 4959/10764 cut-off events. [2023-08-25 07:55:38,345 INFO L125 PetriNetUnfolderBase]: For 942/1042 co-relation queries the response was YES. [2023-08-25 07:55:38,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19834 conditions, 10764 events. 4959/10764 cut-off events. For 942/1042 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 86010 event pairs, 1154 based on Foata normal form. 8/8344 useless extension candidates. Maximal degree in co-relation 19148. Up to 3704 conditions per place. [2023-08-25 07:55:38,511 INFO L140 encePairwiseOnDemand]: 316/339 looper letters, 112 selfloop transitions, 23 changer transitions 0/199 dead transitions. [2023-08-25 07:55:38,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 199 transitions, 785 flow [2023-08-25 07:55:38,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 07:55:38,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 07:55:38,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 666 transitions. [2023-08-25 07:55:38,514 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6548672566371682 [2023-08-25 07:55:38,514 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 666 transitions. [2023-08-25 07:55:38,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 666 transitions. [2023-08-25 07:55:38,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:55:38,514 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 666 transitions. [2023-08-25 07:55:38,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 222.0) internal successors, (666), 3 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:38,517 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 339.0) internal successors, (1356), 4 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:38,518 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 339.0) internal successors, (1356), 4 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:38,518 INFO L175 Difference]: Start difference. First operand has 122 places, 139 transitions, 354 flow. Second operand 3 states and 666 transitions. [2023-08-25 07:55:38,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 199 transitions, 785 flow [2023-08-25 07:55:38,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 199 transitions, 769 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 07:55:38,527 INFO L231 Difference]: Finished difference. Result has 125 places, 162 transitions, 568 flow [2023-08-25 07:55:38,527 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=568, PETRI_PLACES=125, PETRI_TRANSITIONS=162} [2023-08-25 07:55:38,528 INFO L281 CegarLoopForPetriNet]: 122 programPoint places, 3 predicate places. [2023-08-25 07:55:38,528 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 162 transitions, 568 flow [2023-08-25 07:55:38,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 182.33333333333334) internal successors, (547), 3 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:38,528 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:55:38,529 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:55:38,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 07:55:38,529 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-25 07:55:38,529 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:55:38,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1740914713, now seen corresponding path program 1 times [2023-08-25 07:55:38,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:55:38,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162043413] [2023-08-25 07:55:38,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:55:38,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:55:38,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:55:38,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:55:38,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:55:38,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162043413] [2023-08-25 07:55:38,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162043413] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:55:38,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:55:38,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 07:55:38,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634589109] [2023-08-25 07:55:38,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:55:38,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 07:55:38,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:55:38,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 07:55:38,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 07:55:38,559 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 339 [2023-08-25 07:55:38,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 162 transitions, 568 flow. Second operand has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:38,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:55:38,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 339 [2023-08-25 07:55:38,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:55:40,033 INFO L124 PetriNetUnfolderBase]: 9451/19423 cut-off events. [2023-08-25 07:55:40,033 INFO L125 PetriNetUnfolderBase]: For 5655/5860 co-relation queries the response was YES. [2023-08-25 07:55:40,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40394 conditions, 19423 events. 9451/19423 cut-off events. For 5655/5860 co-relation queries the response was YES. Maximal size of possible extension queue 452. Compared 163760 event pairs, 2365 based on Foata normal form. 97/15948 useless extension candidates. Maximal degree in co-relation 39674. Up to 7588 conditions per place. [2023-08-25 07:55:40,164 INFO L140 encePairwiseOnDemand]: 316/339 looper letters, 128 selfloop transitions, 23 changer transitions 0/228 dead transitions. [2023-08-25 07:55:40,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 228 transitions, 1075 flow [2023-08-25 07:55:40,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 07:55:40,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 07:55:40,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 667 transitions. [2023-08-25 07:55:40,166 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.655850540806293 [2023-08-25 07:55:40,166 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 667 transitions. [2023-08-25 07:55:40,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 667 transitions. [2023-08-25 07:55:40,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:55:40,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 667 transitions. [2023-08-25 07:55:40,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 222.33333333333334) internal successors, (667), 3 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:40,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 339.0) internal successors, (1356), 4 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:40,171 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 339.0) internal successors, (1356), 4 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:40,171 INFO L175 Difference]: Start difference. First operand has 125 places, 162 transitions, 568 flow. Second operand 3 states and 667 transitions. [2023-08-25 07:55:40,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 228 transitions, 1075 flow [2023-08-25 07:55:40,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 228 transitions, 1017 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 07:55:40,189 INFO L231 Difference]: Finished difference. Result has 127 places, 185 transitions, 744 flow [2023-08-25 07:55:40,189 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=522, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=744, PETRI_PLACES=127, PETRI_TRANSITIONS=185} [2023-08-25 07:55:40,190 INFO L281 CegarLoopForPetriNet]: 122 programPoint places, 5 predicate places. [2023-08-25 07:55:40,190 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 185 transitions, 744 flow [2023-08-25 07:55:40,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:40,191 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:55:40,191 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:55:40,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 07:55:40,191 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-25 07:55:40,191 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:55:40,191 INFO L85 PathProgramCache]: Analyzing trace with hash -704817491, now seen corresponding path program 1 times [2023-08-25 07:55:40,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:55:40,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781406592] [2023-08-25 07:55:40,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:55:40,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:55:40,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 07:55:40,219 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 07:55:40,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 07:55:40,248 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 07:55:40,249 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 07:55:40,250 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr2Err0ASSERT_VIOLATIONDATA_RACE (59 of 60 remaining) [2023-08-25 07:55:40,252 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (58 of 60 remaining) [2023-08-25 07:55:40,252 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (57 of 60 remaining) [2023-08-25 07:55:40,252 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (56 of 60 remaining) [2023-08-25 07:55:40,252 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (55 of 60 remaining) [2023-08-25 07:55:40,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (54 of 60 remaining) [2023-08-25 07:55:40,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (53 of 60 remaining) [2023-08-25 07:55:40,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (52 of 60 remaining) [2023-08-25 07:55:40,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (51 of 60 remaining) [2023-08-25 07:55:40,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (50 of 60 remaining) [2023-08-25 07:55:40,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (49 of 60 remaining) [2023-08-25 07:55:40,254 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (48 of 60 remaining) [2023-08-25 07:55:40,256 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONASSERT (47 of 60 remaining) [2023-08-25 07:55:40,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (46 of 60 remaining) [2023-08-25 07:55:40,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (45 of 60 remaining) [2023-08-25 07:55:40,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (44 of 60 remaining) [2023-08-25 07:55:40,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (43 of 60 remaining) [2023-08-25 07:55:40,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (42 of 60 remaining) [2023-08-25 07:55:40,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (41 of 60 remaining) [2023-08-25 07:55:40,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (40 of 60 remaining) [2023-08-25 07:55:40,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (39 of 60 remaining) [2023-08-25 07:55:40,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (38 of 60 remaining) [2023-08-25 07:55:40,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (37 of 60 remaining) [2023-08-25 07:55:40,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (36 of 60 remaining) [2023-08-25 07:55:40,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (35 of 60 remaining) [2023-08-25 07:55:40,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (34 of 60 remaining) [2023-08-25 07:55:40,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONASSERT (33 of 60 remaining) [2023-08-25 07:55:40,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (32 of 60 remaining) [2023-08-25 07:55:40,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (31 of 60 remaining) [2023-08-25 07:55:40,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (30 of 60 remaining) [2023-08-25 07:55:40,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (29 of 60 remaining) [2023-08-25 07:55:40,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 60 remaining) [2023-08-25 07:55:40,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 60 remaining) [2023-08-25 07:55:40,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (26 of 60 remaining) [2023-08-25 07:55:40,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (25 of 60 remaining) [2023-08-25 07:55:40,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (24 of 60 remaining) [2023-08-25 07:55:40,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (23 of 60 remaining) [2023-08-25 07:55:40,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (22 of 60 remaining) [2023-08-25 07:55:40,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (21 of 60 remaining) [2023-08-25 07:55:40,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (20 of 60 remaining) [2023-08-25 07:55:40,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (19 of 60 remaining) [2023-08-25 07:55:40,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (18 of 60 remaining) [2023-08-25 07:55:40,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (17 of 60 remaining) [2023-08-25 07:55:40,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONASSERT (16 of 60 remaining) [2023-08-25 07:55:40,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (15 of 60 remaining) [2023-08-25 07:55:40,266 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (14 of 60 remaining) [2023-08-25 07:55:40,266 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 60 remaining) [2023-08-25 07:55:40,266 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (12 of 60 remaining) [2023-08-25 07:55:40,266 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (11 of 60 remaining) [2023-08-25 07:55:40,270 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 60 remaining) [2023-08-25 07:55:40,270 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 60 remaining) [2023-08-25 07:55:40,271 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (8 of 60 remaining) [2023-08-25 07:55:40,271 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (7 of 60 remaining) [2023-08-25 07:55:40,271 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 60 remaining) [2023-08-25 07:55:40,271 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (5 of 60 remaining) [2023-08-25 07:55:40,271 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (4 of 60 remaining) [2023-08-25 07:55:40,271 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (3 of 60 remaining) [2023-08-25 07:55:40,271 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONASSERT (2 of 60 remaining) [2023-08-25 07:55:40,272 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (1 of 60 remaining) [2023-08-25 07:55:40,272 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (0 of 60 remaining) [2023-08-25 07:55:40,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 07:55:40,272 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-25 07:55:40,278 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 07:55:40,278 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 07:55:40,313 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 07:55:40 BasicIcfg [2023-08-25 07:55:40,313 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 07:55:40,313 INFO L158 Benchmark]: Toolchain (without parser) took 8050.10ms. Allocated memory was 381.7MB in the beginning and 1.4GB in the end (delta: 1.0GB). Free memory was 357.0MB in the beginning and 979.7MB in the end (delta: -622.7MB). Peak memory consumption was 415.3MB. Max. memory is 16.0GB. [2023-08-25 07:55:40,314 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 381.7MB. Free memory was 358.8MB in the beginning and 358.7MB in the end (delta: 86.8kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 07:55:40,314 INFO L158 Benchmark]: CACSL2BoogieTranslator took 361.79ms. Allocated memory is still 381.7MB. Free memory was 356.6MB in the beginning and 337.0MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 07:55:40,314 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.31ms. Allocated memory is still 381.7MB. Free memory was 337.0MB in the beginning and 334.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 07:55:40,314 INFO L158 Benchmark]: Boogie Preprocessor took 41.36ms. Allocated memory is still 381.7MB. Free memory was 334.6MB in the beginning and 332.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 07:55:40,315 INFO L158 Benchmark]: RCFGBuilder took 452.25ms. Allocated memory is still 381.7MB. Free memory was 332.5MB in the beginning and 312.9MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 07:55:40,315 INFO L158 Benchmark]: TraceAbstraction took 7117.40ms. Allocated memory was 381.7MB in the beginning and 1.4GB in the end (delta: 1.0GB). Free memory was 312.5MB in the beginning and 979.7MB in the end (delta: -667.1MB). Peak memory consumption was 369.2MB. Max. memory is 16.0GB. [2023-08-25 07:55:40,316 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 381.7MB. Free memory was 358.8MB in the beginning and 358.7MB in the end (delta: 86.8kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 361.79ms. Allocated memory is still 381.7MB. Free memory was 356.6MB in the beginning and 337.0MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 72.31ms. Allocated memory is still 381.7MB. Free memory was 337.0MB in the beginning and 334.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 41.36ms. Allocated memory is still 381.7MB. Free memory was 334.6MB in the beginning and 332.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 452.25ms. Allocated memory is still 381.7MB. Free memory was 332.5MB in the beginning and 312.9MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 7117.40ms. Allocated memory was 381.7MB in the beginning and 1.4GB in the end (delta: 1.0GB). Free memory was 312.5MB in the beginning and 979.7MB in the end (delta: -667.1MB). Peak memory consumption was 369.2MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 249]: Unsoundness Warning unspecified type, defaulting to int C: short [249] - GenericResultAtLocation [Line: 249]: Unsoundness Warning unspecified type, defaulting to int C: short [249] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.1s, 203 PlacesBefore, 122 PlacesAfterwards, 220 TransitionsBefore, 136 TransitionsAfterwards, 21716 CoEnabledTransitionPairs, 6 FixpointIterations, 16 TrivialSequentialCompositions, 76 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 3 ChoiceCompositions, 108 TotalNumberOfCompositions, 110196 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 20976, independent: 19651, independent conditional: 0, independent unconditional: 19651, dependent: 1325, dependent conditional: 0, dependent unconditional: 1325, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 9073, independent: 8875, independent conditional: 0, independent unconditional: 8875, dependent: 198, dependent conditional: 0, dependent unconditional: 198, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 20976, independent: 10776, independent conditional: 0, independent unconditional: 10776, dependent: 1127, dependent conditional: 0, dependent unconditional: 1127, unknown: 9073, unknown conditional: 0, unknown unconditional: 9073] , Statistics on independence cache: Total cache size (in pairs): 1327, Positive cache size: 1195, Positive conditional cache size: 0, Positive unconditional cache size: 1195, Negative cache size: 132, Negative conditional cache size: 0, Negative unconditional cache size: 132, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 703]: Data race detected Data race detected The following path leads to a data race: [L684] 0 int flag1 = 0, flag2 = 0; [L685] 0 int x; [L719] 0 pthread_t t1, t2; [L720] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [flag1=0, flag2=0, pthread_create(&t1, 0, thr1, 0)=0, t1={3:0}, t2={5:0}, x=0] [L687] 1 flag1 = 1 VAL [_={0:0}, _={0:0}, flag1=1, flag2=0, x=0] [L721] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [flag1=1, flag2=0, pthread_create(&t2, 0, thr2, 0)=1, t1={3:0}, t2={5:0}, x=0] [L703] 2 flag2 = 1 VAL [_={0:0}, _={0:0}, flag1=1, flag2 = 1=49, flag2=1, x=0] [L687] 1 flag1 = 1 VAL [_={0:0}, _={0:0}, flag1=1, flag2=1, x=0] [L688] 1 flag2 >= 3 VAL [_={0:0}, _={0:0}, flag1=1, flag2=1, x=0] [L703] 2 flag2 = 1 VAL [_={0:0}, _={0:0}, flag1=1, flag2 = 1=49, flag2=1, x=0] Now there is a data race on ~flag2~0 between C: flag2 >= 3 [688] and C: flag2 = 1 [703] - UnprovableResult [Line: 704]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 687]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 689]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 722]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 721]: 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: 720]: 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 5 procedures, 366 locations, 60 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: 6.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 152 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 152 mSDsluCounter, 88 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 569 IncrementalHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 88 mSDtfsCounter, 569 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=744occurred in iteration=4, InterpolantAutomatonStates: 12, 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, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 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! [2023-08-25 07:55:40,349 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...