/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/weaver/chl-sre-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 05:11:59,647 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 05:11:59,721 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 05:11:59,725 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 05:11:59,726 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 05:11:59,763 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 05:11:59,763 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 05:11:59,764 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 05:11:59,764 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 05:11:59,768 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 05:11:59,768 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 05:11:59,768 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 05:11:59,769 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 05:11:59,770 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 05:11:59,770 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 05:11:59,770 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 05:11:59,770 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 05:11:59,771 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 05:11:59,771 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 05:11:59,771 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 05:11:59,771 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 05:11:59,772 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 05:11:59,772 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 05:11:59,773 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 05:11:59,773 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 05:11:59,774 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 05:11:59,774 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 05:11:59,774 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 05:11:59,774 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 05:11:59,775 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 05:11:59,776 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 05:11:59,776 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 05:11:59,776 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 05:11:59,776 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 05:11:59,776 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 05:11:59,777 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 05:12:00,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 05:12:00,153 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 05:12:00,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 05:12:00,156 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 05:12:00,157 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 05:12:00,158 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-sre-symm.wvr.c [2023-08-25 05:12:01,476 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 05:12:01,717 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 05:12:01,718 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-symm.wvr.c [2023-08-25 05:12:01,727 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d4a34fa9/efb8a72467344ec4b5d76ac3b28e5b35/FLAG1a2474809 [2023-08-25 05:12:01,743 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d4a34fa9/efb8a72467344ec4b5d76ac3b28e5b35 [2023-08-25 05:12:01,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 05:12:01,751 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 05:12:01,753 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 05:12:01,754 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 05:12:01,756 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 05:12:01,758 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:12:01" (1/1) ... [2023-08-25 05:12:01,758 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21a7331f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:12:01, skipping insertion in model container [2023-08-25 05:12:01,758 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:12:01" (1/1) ... [2023-08-25 05:12:01,778 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 05:12:01,951 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 05:12:01,966 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 05:12:02,001 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 05:12:02,013 INFO L206 MainTranslator]: Completed translation [2023-08-25 05:12:02,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:12:02 WrapperNode [2023-08-25 05:12:02,014 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 05:12:02,015 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 05:12:02,015 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 05:12:02,016 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 05:12:02,021 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:12:02" (1/1) ... [2023-08-25 05:12:02,037 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:12:02" (1/1) ... [2023-08-25 05:12:02,065 INFO L138 Inliner]: procedures = 21, calls = 22, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 106 [2023-08-25 05:12:02,065 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 05:12:02,066 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 05:12:02,066 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 05:12:02,066 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 05:12:02,073 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:12:02" (1/1) ... [2023-08-25 05:12:02,073 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:12:02" (1/1) ... [2023-08-25 05:12:02,086 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:12:02" (1/1) ... [2023-08-25 05:12:02,087 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:12:02" (1/1) ... [2023-08-25 05:12:02,092 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:12:02" (1/1) ... [2023-08-25 05:12:02,093 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:12:02" (1/1) ... [2023-08-25 05:12:02,094 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:12:02" (1/1) ... [2023-08-25 05:12:02,095 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:12:02" (1/1) ... [2023-08-25 05:12:02,105 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 05:12:02,106 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 05:12:02,107 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 05:12:02,107 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 05:12:02,107 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:12:02" (1/1) ... [2023-08-25 05:12:02,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 05:12:02,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:12:02,138 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 05:12:02,162 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 05:12:02,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 05:12:02,179 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 05:12:02,179 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 05:12:02,179 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 05:12:02,180 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 05:12:02,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 05:12:02,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 05:12:02,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 05:12:02,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 05:12:02,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 05:12:02,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 05:12:02,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 05:12:02,182 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 05:12:02,257 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 05:12:02,259 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 05:12:02,544 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 05:12:02,552 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 05:12:02,552 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 05:12:02,554 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:12:02 BoogieIcfgContainer [2023-08-25 05:12:02,554 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 05:12:02,560 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 05:12:02,560 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 05:12:02,563 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 05:12:02,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 05:12:01" (1/3) ... [2023-08-25 05:12:02,564 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@88fd1ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:12:02, skipping insertion in model container [2023-08-25 05:12:02,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:12:02" (2/3) ... [2023-08-25 05:12:02,564 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@88fd1ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:12:02, skipping insertion in model container [2023-08-25 05:12:02,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:12:02" (3/3) ... [2023-08-25 05:12:02,565 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-sre-symm.wvr.c [2023-08-25 05:12:02,580 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 05:12:02,581 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2023-08-25 05:12:02,581 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 05:12:02,671 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-25 05:12:02,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 168 places, 169 transitions, 354 flow [2023-08-25 05:12:02,759 INFO L124 PetriNetUnfolderBase]: 8/167 cut-off events. [2023-08-25 05:12:02,759 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 05:12:02,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 167 events. 8/167 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 179 event pairs, 0 based on Foata normal form. 0/140 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2023-08-25 05:12:02,766 INFO L82 GeneralOperation]: Start removeDead. Operand has 168 places, 169 transitions, 354 flow [2023-08-25 05:12:02,770 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 157 places, 158 transitions, 328 flow [2023-08-25 05:12:02,773 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 05:12:02,780 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 157 places, 158 transitions, 328 flow [2023-08-25 05:12:02,783 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 157 places, 158 transitions, 328 flow [2023-08-25 05:12:02,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 158 transitions, 328 flow [2023-08-25 05:12:02,813 INFO L124 PetriNetUnfolderBase]: 8/158 cut-off events. [2023-08-25 05:12:02,813 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 05:12:02,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 158 events. 8/158 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 178 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 86. Up to 2 conditions per place. [2023-08-25 05:12:02,817 INFO L119 LiptonReduction]: Number of co-enabled transitions 2420 [2023-08-25 05:12:07,045 INFO L134 LiptonReduction]: Checked pairs total: 8175 [2023-08-25 05:12:07,046 INFO L136 LiptonReduction]: Total number of compositions: 169 [2023-08-25 05:12:07,058 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 05:12:07,064 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;@15df3eec, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 05:12:07,064 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2023-08-25 05:12:07,065 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 05:12:07,065 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 05:12:07,065 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 05:12:07,065 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:12:07,066 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 05:12:07,066 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-25 05:12:07,070 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:12:07,070 INFO L85 PathProgramCache]: Analyzing trace with hash 607, now seen corresponding path program 1 times [2023-08-25 05:12:07,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:12:07,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217247336] [2023-08-25 05:12:07,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:12:07,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:12:07,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:12:07,164 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 05:12:07,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:12:07,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217247336] [2023-08-25 05:12:07,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217247336] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:12:07,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:12:07,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 05:12:07,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293570630] [2023-08-25 05:12:07,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:12:07,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 05:12:07,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:12:07,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 05:12:07,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 05:12:07,203 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 338 [2023-08-25 05:12:07,207 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 43 transitions, 98 flow. Second operand has 2 states, 2 states have (on average 161.5) internal successors, (323), 2 states have internal predecessors, (323), 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 05:12:07,207 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:12:07,207 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 338 [2023-08-25 05:12:07,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:12:07,282 INFO L124 PetriNetUnfolderBase]: 65/145 cut-off events. [2023-08-25 05:12:07,282 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-25 05:12:07,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 145 events. 65/145 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 620 event pairs, 45 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 229. Up to 117 conditions per place. [2023-08-25 05:12:07,286 INFO L140 encePairwiseOnDemand]: 327/338 looper letters, 17 selfloop transitions, 0 changer transitions 0/32 dead transitions. [2023-08-25 05:12:07,286 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 32 transitions, 110 flow [2023-08-25 05:12:07,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 05:12:07,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 05:12:07,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 350 transitions. [2023-08-25 05:12:07,305 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5177514792899408 [2023-08-25 05:12:07,306 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 350 transitions. [2023-08-25 05:12:07,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 350 transitions. [2023-08-25 05:12:07,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:12:07,311 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 350 transitions. [2023-08-25 05:12:07,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 175.0) internal successors, (350), 2 states have internal predecessors, (350), 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 05:12:07,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 338.0) internal successors, (1014), 3 states have internal predecessors, (1014), 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 05:12:07,322 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 338.0) internal successors, (1014), 3 states have internal predecessors, (1014), 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 05:12:07,324 INFO L175 Difference]: Start difference. First operand has 48 places, 43 transitions, 98 flow. Second operand 2 states and 350 transitions. [2023-08-25 05:12:07,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 32 transitions, 110 flow [2023-08-25 05:12:07,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 32 transitions, 102 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 05:12:07,328 INFO L231 Difference]: Finished difference. Result has 34 places, 32 transitions, 68 flow [2023-08-25 05:12:07,330 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=68, PETRI_PLACES=34, PETRI_TRANSITIONS=32} [2023-08-25 05:12:07,334 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -14 predicate places. [2023-08-25 05:12:07,335 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 32 transitions, 68 flow [2023-08-25 05:12:07,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 161.5) internal successors, (323), 2 states have internal predecessors, (323), 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 05:12:07,335 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:12:07,335 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-25 05:12:07,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 05:12:07,336 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-25 05:12:07,338 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:12:07,338 INFO L85 PathProgramCache]: Analyzing trace with hash 18641755, now seen corresponding path program 1 times [2023-08-25 05:12:07,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:12:07,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423569086] [2023-08-25 05:12:07,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:12:07,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:12:07,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:12:07,436 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 05:12:07,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:12:07,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423569086] [2023-08-25 05:12:07,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423569086] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:12:07,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:12:07,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:12:07,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543525303] [2023-08-25 05:12:07,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:12:07,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:12:07,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:12:07,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:12:07,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:12:07,441 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 338 [2023-08-25 05:12:07,441 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 32 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 150.33333333333334) internal successors, (451), 3 states have internal predecessors, (451), 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 05:12:07,442 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:12:07,442 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 338 [2023-08-25 05:12:07,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:12:07,507 INFO L124 PetriNetUnfolderBase]: 133/260 cut-off events. [2023-08-25 05:12:07,507 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-25 05:12:07,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 502 conditions, 260 events. 133/260 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1002 event pairs, 50 based on Foata normal form. 0/235 useless extension candidates. Maximal degree in co-relation 499. Up to 227 conditions per place. [2023-08-25 05:12:07,509 INFO L140 encePairwiseOnDemand]: 333/338 looper letters, 24 selfloop transitions, 2 changer transitions 0/34 dead transitions. [2023-08-25 05:12:07,509 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 34 transitions, 125 flow [2023-08-25 05:12:07,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:12:07,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:12:07,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 476 transitions. [2023-08-25 05:12:07,512 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46942800788954636 [2023-08-25 05:12:07,512 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 476 transitions. [2023-08-25 05:12:07,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 476 transitions. [2023-08-25 05:12:07,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:12:07,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 476 transitions. [2023-08-25 05:12:07,514 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 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 05:12:07,516 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 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 05:12:07,517 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 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 05:12:07,517 INFO L175 Difference]: Start difference. First operand has 34 places, 32 transitions, 68 flow. Second operand 3 states and 476 transitions. [2023-08-25 05:12:07,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 34 transitions, 125 flow [2023-08-25 05:12:07,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 34 transitions, 125 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:12:07,518 INFO L231 Difference]: Finished difference. Result has 34 places, 31 transitions, 76 flow [2023-08-25 05:12:07,519 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=34, PETRI_TRANSITIONS=31} [2023-08-25 05:12:07,519 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -14 predicate places. [2023-08-25 05:12:07,519 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 31 transitions, 76 flow [2023-08-25 05:12:07,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 150.33333333333334) internal successors, (451), 3 states have internal predecessors, (451), 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 05:12:07,520 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:12:07,520 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 05:12:07,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 05:12:07,521 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-25 05:12:07,521 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:12:07,521 INFO L85 PathProgramCache]: Analyzing trace with hash 740038142, now seen corresponding path program 1 times [2023-08-25 05:12:07,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:12:07,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212455388] [2023-08-25 05:12:07,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:12:07,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:12:07,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:12:07,557 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 05:12:07,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:12:07,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212455388] [2023-08-25 05:12:07,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212455388] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:12:07,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:12:07,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:12:07,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811603636] [2023-08-25 05:12:07,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:12:07,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:12:07,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:12:07,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:12:07,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:12:07,560 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 338 [2023-08-25 05:12:07,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 31 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 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 05:12:07,561 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:12:07,561 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 338 [2023-08-25 05:12:07,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:12:07,615 INFO L124 PetriNetUnfolderBase]: 140/271 cut-off events. [2023-08-25 05:12:07,616 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 05:12:07,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 537 conditions, 271 events. 140/271 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1080 event pairs, 48 based on Foata normal form. 0/243 useless extension candidates. Maximal degree in co-relation 533. Up to 238 conditions per place. [2023-08-25 05:12:07,619 INFO L140 encePairwiseOnDemand]: 333/338 looper letters, 24 selfloop transitions, 2 changer transitions 0/33 dead transitions. [2023-08-25 05:12:07,619 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 33 transitions, 133 flow [2023-08-25 05:12:07,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:12:07,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:12:07,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 476 transitions. [2023-08-25 05:12:07,623 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46942800788954636 [2023-08-25 05:12:07,623 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 476 transitions. [2023-08-25 05:12:07,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 476 transitions. [2023-08-25 05:12:07,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:12:07,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 476 transitions. [2023-08-25 05:12:07,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 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 05:12:07,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 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 05:12:07,628 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 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 05:12:07,628 INFO L175 Difference]: Start difference. First operand has 34 places, 31 transitions, 76 flow. Second operand 3 states and 476 transitions. [2023-08-25 05:12:07,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 33 transitions, 133 flow [2023-08-25 05:12:07,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 33 transitions, 133 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:12:07,630 INFO L231 Difference]: Finished difference. Result has 34 places, 30 transitions, 84 flow [2023-08-25 05:12:07,630 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=34, PETRI_TRANSITIONS=30} [2023-08-25 05:12:07,631 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -14 predicate places. [2023-08-25 05:12:07,631 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 30 transitions, 84 flow [2023-08-25 05:12:07,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 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 05:12:07,632 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:12:07,632 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:12:07,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 05:12:07,632 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-25 05:12:07,633 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:12:07,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1306146088, now seen corresponding path program 1 times [2023-08-25 05:12:07,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:12:07,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215170637] [2023-08-25 05:12:07,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:12:07,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:12:07,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:12:07,673 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 05:12:07,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:12:07,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215170637] [2023-08-25 05:12:07,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215170637] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:12:07,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:12:07,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:12:07,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640231661] [2023-08-25 05:12:07,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:12:07,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:12:07,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:12:07,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:12:07,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:12:07,677 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 338 [2023-08-25 05:12:07,677 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 30 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 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 05:12:07,677 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:12:07,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 338 [2023-08-25 05:12:07,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:12:07,740 INFO L124 PetriNetUnfolderBase]: 79/156 cut-off events. [2023-08-25 05:12:07,740 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 05:12:07,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 320 conditions, 156 events. 79/156 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 595 event pairs, 38 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 315. Up to 102 conditions per place. [2023-08-25 05:12:07,743 INFO L140 encePairwiseOnDemand]: 334/338 looper letters, 21 selfloop transitions, 3 changer transitions 0/36 dead transitions. [2023-08-25 05:12:07,743 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 36 transitions, 145 flow [2023-08-25 05:12:07,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:12:07,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:12:07,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 466 transitions. [2023-08-25 05:12:07,747 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45956607495069035 [2023-08-25 05:12:07,747 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 466 transitions. [2023-08-25 05:12:07,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 466 transitions. [2023-08-25 05:12:07,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:12:07,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 466 transitions. [2023-08-25 05:12:07,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 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 05:12:07,751 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 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 05:12:07,752 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 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 05:12:07,752 INFO L175 Difference]: Start difference. First operand has 34 places, 30 transitions, 84 flow. Second operand 3 states and 466 transitions. [2023-08-25 05:12:07,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 36 transitions, 145 flow [2023-08-25 05:12:07,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 36 transitions, 145 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:12:07,754 INFO L231 Difference]: Finished difference. Result has 35 places, 29 transitions, 88 flow [2023-08-25 05:12:07,754 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=35, PETRI_TRANSITIONS=29} [2023-08-25 05:12:07,756 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -13 predicate places. [2023-08-25 05:12:07,756 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 29 transitions, 88 flow [2023-08-25 05:12:07,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 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 05:12:07,757 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:12:07,757 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:12:07,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 05:12:07,758 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-25 05:12:07,758 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:12:07,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1258683457, now seen corresponding path program 1 times [2023-08-25 05:12:07,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:12:07,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832893541] [2023-08-25 05:12:07,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:12:07,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:12:07,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:12:07,980 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 05:12:07,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:12:07,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832893541] [2023-08-25 05:12:07,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832893541] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:12:07,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:12:07,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:12:07,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533162714] [2023-08-25 05:12:07,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:12:07,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 05:12:07,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:12:07,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 05:12:07,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 05:12:07,984 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 338 [2023-08-25 05:12:07,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 29 transitions, 88 flow. Second operand has 4 states, 4 states have (on average 154.25) internal successors, (617), 4 states have internal predecessors, (617), 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 05:12:07,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:12:07,985 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 338 [2023-08-25 05:12:07,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:12:08,088 INFO L124 PetriNetUnfolderBase]: 123/261 cut-off events. [2023-08-25 05:12:08,089 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2023-08-25 05:12:08,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 593 conditions, 261 events. 123/261 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1249 event pairs, 51 based on Foata normal form. 1/249 useless extension candidates. Maximal degree in co-relation 587. Up to 115 conditions per place. [2023-08-25 05:12:08,091 INFO L140 encePairwiseOnDemand]: 334/338 looper letters, 33 selfloop transitions, 4 changer transitions 1/50 dead transitions. [2023-08-25 05:12:08,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 50 transitions, 219 flow [2023-08-25 05:12:08,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 05:12:08,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 05:12:08,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 643 transitions. [2023-08-25 05:12:08,103 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4755917159763314 [2023-08-25 05:12:08,103 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 643 transitions. [2023-08-25 05:12:08,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 643 transitions. [2023-08-25 05:12:08,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:12:08,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 643 transitions. [2023-08-25 05:12:08,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 160.75) internal successors, (643), 4 states have internal predecessors, (643), 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 05:12:08,108 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 338.0) internal successors, (1690), 5 states have internal predecessors, (1690), 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 05:12:08,108 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 338.0) internal successors, (1690), 5 states have internal predecessors, (1690), 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 05:12:08,109 INFO L175 Difference]: Start difference. First operand has 35 places, 29 transitions, 88 flow. Second operand 4 states and 643 transitions. [2023-08-25 05:12:08,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 50 transitions, 219 flow [2023-08-25 05:12:08,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 50 transitions, 205 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 05:12:08,113 INFO L231 Difference]: Finished difference. Result has 37 places, 31 transitions, 101 flow [2023-08-25 05:12:08,113 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=101, PETRI_PLACES=37, PETRI_TRANSITIONS=31} [2023-08-25 05:12:08,116 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -11 predicate places. [2023-08-25 05:12:08,117 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 31 transitions, 101 flow [2023-08-25 05:12:08,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 154.25) internal successors, (617), 4 states have internal predecessors, (617), 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 05:12:08,117 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:12:08,118 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:12:08,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 05:12:08,118 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-25 05:12:08,118 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:12:08,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1368835478, now seen corresponding path program 1 times [2023-08-25 05:12:08,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:12:08,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041815688] [2023-08-25 05:12:08,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:12:08,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:12:08,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:12:08,228 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 05:12:08,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:12:08,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041815688] [2023-08-25 05:12:08,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041815688] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:12:08,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:12:08,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:12:08,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297473429] [2023-08-25 05:12:08,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:12:08,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:12:08,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:12:08,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:12:08,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:12:08,233 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 338 [2023-08-25 05:12:08,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 31 transitions, 101 flow. Second operand has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 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 05:12:08,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:12:08,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 338 [2023-08-25 05:12:08,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:12:08,300 INFO L124 PetriNetUnfolderBase]: 108/246 cut-off events. [2023-08-25 05:12:08,300 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2023-08-25 05:12:08,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 565 conditions, 246 events. 108/246 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1103 event pairs, 34 based on Foata normal form. 14/247 useless extension candidates. Maximal degree in co-relation 558. Up to 161 conditions per place. [2023-08-25 05:12:08,302 INFO L140 encePairwiseOnDemand]: 334/338 looper letters, 26 selfloop transitions, 2 changer transitions 1/41 dead transitions. [2023-08-25 05:12:08,302 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 41 transitions, 182 flow [2023-08-25 05:12:08,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:12:08,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:12:08,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 482 transitions. [2023-08-25 05:12:08,304 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47534516765285995 [2023-08-25 05:12:08,304 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 482 transitions. [2023-08-25 05:12:08,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 482 transitions. [2023-08-25 05:12:08,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:12:08,305 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 482 transitions. [2023-08-25 05:12:08,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.66666666666666) internal successors, (482), 3 states have internal predecessors, (482), 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 05:12:08,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 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 05:12:08,308 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 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 05:12:08,309 INFO L175 Difference]: Start difference. First operand has 37 places, 31 transitions, 101 flow. Second operand 3 states and 482 transitions. [2023-08-25 05:12:08,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 41 transitions, 182 flow [2023-08-25 05:12:08,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 41 transitions, 179 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 05:12:08,310 INFO L231 Difference]: Finished difference. Result has 40 places, 33 transitions, 118 flow [2023-08-25 05:12:08,310 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=40, PETRI_TRANSITIONS=33} [2023-08-25 05:12:08,311 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -8 predicate places. [2023-08-25 05:12:08,311 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 33 transitions, 118 flow [2023-08-25 05:12:08,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 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 05:12:08,312 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:12:08,312 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:12:08,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 05:12:08,312 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-25 05:12:08,312 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:12:08,313 INFO L85 PathProgramCache]: Analyzing trace with hash 272768153, now seen corresponding path program 1 times [2023-08-25 05:12:08,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:12:08,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709369722] [2023-08-25 05:12:08,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:12:08,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:12:08,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:12:08,402 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 05:12:08,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:12:08,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709369722] [2023-08-25 05:12:08,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709369722] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:12:08,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:12:08,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:12:08,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796444959] [2023-08-25 05:12:08,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:12:08,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:12:08,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:12:08,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:12:08,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:12:08,404 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 338 [2023-08-25 05:12:08,405 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 33 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 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 05:12:08,405 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:12:08,405 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 338 [2023-08-25 05:12:08,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:12:08,473 INFO L124 PetriNetUnfolderBase]: 82/196 cut-off events. [2023-08-25 05:12:08,473 INFO L125 PetriNetUnfolderBase]: For 99/102 co-relation queries the response was YES. [2023-08-25 05:12:08,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 487 conditions, 196 events. 82/196 cut-off events. For 99/102 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 796 event pairs, 49 based on Foata normal form. 10/194 useless extension candidates. Maximal degree in co-relation 479. Up to 117 conditions per place. [2023-08-25 05:12:08,474 INFO L140 encePairwiseOnDemand]: 334/338 looper letters, 26 selfloop transitions, 2 changer transitions 3/43 dead transitions. [2023-08-25 05:12:08,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 43 transitions, 207 flow [2023-08-25 05:12:08,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:12:08,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:12:08,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 482 transitions. [2023-08-25 05:12:08,477 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47534516765285995 [2023-08-25 05:12:08,477 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 482 transitions. [2023-08-25 05:12:08,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 482 transitions. [2023-08-25 05:12:08,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:12:08,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 482 transitions. [2023-08-25 05:12:08,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.66666666666666) internal successors, (482), 3 states have internal predecessors, (482), 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 05:12:08,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 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 05:12:08,482 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 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 05:12:08,482 INFO L175 Difference]: Start difference. First operand has 40 places, 33 transitions, 118 flow. Second operand 3 states and 482 transitions. [2023-08-25 05:12:08,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 43 transitions, 207 flow [2023-08-25 05:12:08,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 43 transitions, 205 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 05:12:08,485 INFO L231 Difference]: Finished difference. Result has 42 places, 33 transitions, 126 flow [2023-08-25 05:12:08,485 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=42, PETRI_TRANSITIONS=33} [2023-08-25 05:12:08,485 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -6 predicate places. [2023-08-25 05:12:08,486 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 33 transitions, 126 flow [2023-08-25 05:12:08,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 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 05:12:08,486 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:12:08,486 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:12:08,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 05:12:08,487 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-25 05:12:08,488 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:12:08,489 INFO L85 PathProgramCache]: Analyzing trace with hash 289715036, now seen corresponding path program 1 times [2023-08-25 05:12:08,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:12:08,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251647645] [2023-08-25 05:12:08,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:12:08,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:12:08,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:12:08,994 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 05:12:08,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:12:08,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251647645] [2023-08-25 05:12:08,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251647645] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:12:08,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:12:08,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 05:12:08,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333879978] [2023-08-25 05:12:08,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:12:08,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 05:12:08,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:12:08,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 05:12:08,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-25 05:12:08,997 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 338 [2023-08-25 05:12:08,998 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 33 transitions, 126 flow. Second operand has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 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 05:12:08,998 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:12:08,998 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 338 [2023-08-25 05:12:08,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:12:09,151 INFO L124 PetriNetUnfolderBase]: 72/186 cut-off events. [2023-08-25 05:12:09,151 INFO L125 PetriNetUnfolderBase]: For 110/113 co-relation queries the response was YES. [2023-08-25 05:12:09,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 478 conditions, 186 events. 72/186 cut-off events. For 110/113 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 737 event pairs, 12 based on Foata normal form. 1/175 useless extension candidates. Maximal degree in co-relation 469. Up to 62 conditions per place. [2023-08-25 05:12:09,153 INFO L140 encePairwiseOnDemand]: 333/338 looper letters, 24 selfloop transitions, 4 changer transitions 11/51 dead transitions. [2023-08-25 05:12:09,153 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 51 transitions, 247 flow [2023-08-25 05:12:09,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 05:12:09,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 05:12:09,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 744 transitions. [2023-08-25 05:12:09,155 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44023668639053254 [2023-08-25 05:12:09,155 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 744 transitions. [2023-08-25 05:12:09,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 744 transitions. [2023-08-25 05:12:09,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:12:09,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 744 transitions. [2023-08-25 05:12:09,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 148.8) internal successors, (744), 5 states have internal predecessors, (744), 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 05:12:09,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 338.0) internal successors, (2028), 6 states have internal predecessors, (2028), 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 05:12:09,161 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 338.0) internal successors, (2028), 6 states have internal predecessors, (2028), 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 05:12:09,161 INFO L175 Difference]: Start difference. First operand has 42 places, 33 transitions, 126 flow. Second operand 5 states and 744 transitions. [2023-08-25 05:12:09,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 51 transitions, 247 flow [2023-08-25 05:12:09,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 51 transitions, 243 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-25 05:12:09,163 INFO L231 Difference]: Finished difference. Result has 46 places, 32 transitions, 129 flow [2023-08-25 05:12:09,163 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=129, PETRI_PLACES=46, PETRI_TRANSITIONS=32} [2023-08-25 05:12:09,164 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -2 predicate places. [2023-08-25 05:12:09,164 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 32 transitions, 129 flow [2023-08-25 05:12:09,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 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 05:12:09,164 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:12:09,164 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:12:09,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 05:12:09,165 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-25 05:12:09,165 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:12:09,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1167911516, now seen corresponding path program 2 times [2023-08-25 05:12:09,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:12:09,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573177370] [2023-08-25 05:12:09,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:12:09,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:12:09,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:12:09,534 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 05:12:09,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:12:09,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573177370] [2023-08-25 05:12:09,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573177370] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:12:09,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:12:09,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 05:12:09,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656861388] [2023-08-25 05:12:09,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:12:09,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 05:12:09,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:12:09,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 05:12:09,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 05:12:09,539 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 338 [2023-08-25 05:12:09,540 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 32 transitions, 129 flow. Second operand has 5 states, 5 states have (on average 144.0) internal successors, (720), 5 states have internal predecessors, (720), 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 05:12:09,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:12:09,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 338 [2023-08-25 05:12:09,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:12:09,697 INFO L124 PetriNetUnfolderBase]: 60/160 cut-off events. [2023-08-25 05:12:09,697 INFO L125 PetriNetUnfolderBase]: For 115/118 co-relation queries the response was YES. [2023-08-25 05:12:09,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 448 conditions, 160 events. 60/160 cut-off events. For 115/118 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 630 event pairs, 18 based on Foata normal form. 1/149 useless extension candidates. Maximal degree in co-relation 438. Up to 59 conditions per place. [2023-08-25 05:12:09,698 INFO L140 encePairwiseOnDemand]: 333/338 looper letters, 0 selfloop transitions, 0 changer transitions 45/45 dead transitions. [2023-08-25 05:12:09,698 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 45 transitions, 224 flow [2023-08-25 05:12:09,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 05:12:09,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 05:12:09,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 739 transitions. [2023-08-25 05:12:09,701 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4372781065088757 [2023-08-25 05:12:09,701 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 739 transitions. [2023-08-25 05:12:09,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 739 transitions. [2023-08-25 05:12:09,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:12:09,702 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 739 transitions. [2023-08-25 05:12:09,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 147.8) internal successors, (739), 5 states have internal predecessors, (739), 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 05:12:09,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 338.0) internal successors, (2028), 6 states have internal predecessors, (2028), 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 05:12:09,706 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 338.0) internal successors, (2028), 6 states have internal predecessors, (2028), 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 05:12:09,706 INFO L175 Difference]: Start difference. First operand has 46 places, 32 transitions, 129 flow. Second operand 5 states and 739 transitions. [2023-08-25 05:12:09,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 45 transitions, 224 flow [2023-08-25 05:12:09,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 45 transitions, 218 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 05:12:09,708 INFO L231 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow [2023-08-25 05:12:09,708 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=46, PETRI_TRANSITIONS=0} [2023-08-25 05:12:09,708 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -2 predicate places. [2023-08-25 05:12:09,708 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 0 transitions, 0 flow [2023-08-25 05:12:09,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 144.0) internal successors, (720), 5 states have internal predecessors, (720), 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 05:12:09,711 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (28 of 29 remaining) [2023-08-25 05:12:09,711 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (27 of 29 remaining) [2023-08-25 05:12:09,711 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (26 of 29 remaining) [2023-08-25 05:12:09,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (25 of 29 remaining) [2023-08-25 05:12:09,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (24 of 29 remaining) [2023-08-25 05:12:09,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (23 of 29 remaining) [2023-08-25 05:12:09,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (22 of 29 remaining) [2023-08-25 05:12:09,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (21 of 29 remaining) [2023-08-25 05:12:09,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 29 remaining) [2023-08-25 05:12:09,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (19 of 29 remaining) [2023-08-25 05:12:09,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (18 of 29 remaining) [2023-08-25 05:12:09,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (17 of 29 remaining) [2023-08-25 05:12:09,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (16 of 29 remaining) [2023-08-25 05:12:09,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (15 of 29 remaining) [2023-08-25 05:12:09,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (14 of 29 remaining) [2023-08-25 05:12:09,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (13 of 29 remaining) [2023-08-25 05:12:09,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (12 of 29 remaining) [2023-08-25 05:12:09,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (11 of 29 remaining) [2023-08-25 05:12:09,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONASSERT (10 of 29 remaining) [2023-08-25 05:12:09,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 29 remaining) [2023-08-25 05:12:09,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 29 remaining) [2023-08-25 05:12:09,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (7 of 29 remaining) [2023-08-25 05:12:09,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (6 of 29 remaining) [2023-08-25 05:12:09,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (5 of 29 remaining) [2023-08-25 05:12:09,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (4 of 29 remaining) [2023-08-25 05:12:09,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 29 remaining) [2023-08-25 05:12:09,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 29 remaining) [2023-08-25 05:12:09,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (1 of 29 remaining) [2023-08-25 05:12:09,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (0 of 29 remaining) [2023-08-25 05:12:09,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 05:12:09,715 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:12:09,719 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 05:12:09,720 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 05:12:09,722 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 05:12:09 BasicIcfg [2023-08-25 05:12:09,723 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 05:12:09,723 INFO L158 Benchmark]: Toolchain (without parser) took 7972.63ms. Allocated memory was 360.7MB in the beginning and 434.1MB in the end (delta: 73.4MB). Free memory was 336.2MB in the beginning and 331.1MB in the end (delta: 5.2MB). Peak memory consumption was 81.6MB. Max. memory is 16.0GB. [2023-08-25 05:12:09,723 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 360.7MB. Free memory was 338.1MB in the beginning and 338.0MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 05:12:09,724 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.92ms. Allocated memory is still 360.7MB. Free memory was 336.2MB in the beginning and 324.8MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-25 05:12:09,724 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.78ms. Allocated memory is still 360.7MB. Free memory was 324.8MB in the beginning and 322.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 05:12:09,724 INFO L158 Benchmark]: Boogie Preprocessor took 39.57ms. Allocated memory is still 360.7MB. Free memory was 322.8MB in the beginning and 321.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 05:12:09,724 INFO L158 Benchmark]: RCFGBuilder took 447.76ms. Allocated memory is still 360.7MB. Free memory was 321.5MB in the beginning and 304.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-25 05:12:09,725 INFO L158 Benchmark]: TraceAbstraction took 7163.04ms. Allocated memory was 360.7MB in the beginning and 434.1MB in the end (delta: 73.4MB). Free memory was 303.9MB in the beginning and 331.1MB in the end (delta: -27.1MB). Peak memory consumption was 48.1MB. Max. memory is 16.0GB. [2023-08-25 05:12:09,726 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 360.7MB. Free memory was 338.1MB in the beginning and 338.0MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 260.92ms. Allocated memory is still 360.7MB. Free memory was 336.2MB in the beginning and 324.8MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 49.78ms. Allocated memory is still 360.7MB. Free memory was 324.8MB in the beginning and 322.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 39.57ms. Allocated memory is still 360.7MB. Free memory was 322.8MB in the beginning and 321.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 447.76ms. Allocated memory is still 360.7MB. Free memory was 321.5MB in the beginning and 304.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 7163.04ms. Allocated memory was 360.7MB in the beginning and 434.1MB in the end (delta: 73.4MB). Free memory was 303.9MB in the beginning and 331.1MB in the end (delta: -27.1MB). Peak memory consumption was 48.1MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.3s, 157 PlacesBefore, 48 PlacesAfterwards, 158 TransitionsBefore, 43 TransitionsAfterwards, 2420 CoEnabledTransitionPairs, 7 FixpointIterations, 96 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 19 TrivialYvCompositions, 5 ConcurrentYvCompositions, 6 ChoiceCompositions, 169 TotalNumberOfCompositions, 8175 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4244, independent: 3959, independent conditional: 0, independent unconditional: 3959, dependent: 285, dependent conditional: 0, dependent unconditional: 285, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1338, independent: 1309, independent conditional: 0, independent unconditional: 1309, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4244, independent: 2650, independent conditional: 0, independent unconditional: 2650, dependent: 256, dependent conditional: 0, dependent unconditional: 256, unknown: 1338, unknown conditional: 0, unknown unconditional: 1338] , Statistics on independence cache: Total cache size (in pairs): 170, Positive cache size: 150, Positive conditional cache size: 0, Positive unconditional cache size: 150, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 21]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 208 locations, 29 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: 7.0s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 115 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 115 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 437 IncrementalHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 7 mSDtfsCounter, 437 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=129occurred in iteration=8, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 125 NumberOfCodeBlocks, 125 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 1179 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 19 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 05:12:09,742 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...