/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_23-idxsense_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 07:06:14,724 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 07:06:14,802 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-26 07:06:14,809 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 07:06:14,810 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 07:06:14,841 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 07:06:14,841 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 07:06:14,842 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 07:06:14,842 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 07:06:14,846 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 07:06:14,846 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 07:06:14,846 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 07:06:14,847 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 07:06:14,848 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 07:06:14,848 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 07:06:14,848 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 07:06:14,848 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 07:06:14,849 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 07:06:14,849 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 07:06:14,849 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 07:06:14,849 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 07:06:14,850 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 07:06:14,850 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 07:06:14,851 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 07:06:14,851 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 07:06:14,851 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 07:06:14,851 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 07:06:14,852 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 07:06:14,852 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 07:06:14,852 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 07:06:14,853 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 07:06:14,853 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 07:06:14,853 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 07:06:14,853 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 07:06:14,853 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 07:06:14,854 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 07:06:15,146 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 07:06:15,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 07:06:15,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 07:06:15,165 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 07:06:15,166 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 07:06:15,167 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_23-idxsense_nr.i [2023-08-26 07:06:16,323 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 07:06:16,578 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 07:06:16,579 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_23-idxsense_nr.i [2023-08-26 07:06:16,594 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4581521a3/b10bab97a92a4658ba9869f06b0ca98a/FLAG899ed3109 [2023-08-26 07:06:16,605 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4581521a3/b10bab97a92a4658ba9869f06b0ca98a [2023-08-26 07:06:16,607 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 07:06:16,608 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 07:06:16,609 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 07:06:16,609 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 07:06:16,611 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 07:06:16,612 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 07:06:16" (1/1) ... [2023-08-26 07:06:16,613 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b9f4a79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:06:16, skipping insertion in model container [2023-08-26 07:06:16,613 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 07:06:16" (1/1) ... [2023-08-26 07:06:16,650 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 07:06:16,961 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 07:06:16,986 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 07:06:17,012 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-26 07:06:17,013 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-26 07:06:17,048 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 07:06:17,086 INFO L206 MainTranslator]: Completed translation [2023-08-26 07:06:17,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:06:17 WrapperNode [2023-08-26 07:06:17,087 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 07:06:17,088 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 07:06:17,088 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 07:06:17,088 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 07:06:17,094 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:06:17" (1/1) ... [2023-08-26 07:06:17,121 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:06:17" (1/1) ... [2023-08-26 07:06:17,150 INFO L138 Inliner]: procedures = 161, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 74 [2023-08-26 07:06:17,150 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 07:06:17,151 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 07:06:17,151 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 07:06:17,151 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 07:06:17,159 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:06:17" (1/1) ... [2023-08-26 07:06:17,159 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:06:17" (1/1) ... [2023-08-26 07:06:17,162 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:06:17" (1/1) ... [2023-08-26 07:06:17,162 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:06:17" (1/1) ... [2023-08-26 07:06:17,173 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:06:17" (1/1) ... [2023-08-26 07:06:17,176 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:06:17" (1/1) ... [2023-08-26 07:06:17,188 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:06:17" (1/1) ... [2023-08-26 07:06:17,190 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:06:17" (1/1) ... [2023-08-26 07:06:17,194 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 07:06:17,195 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 07:06:17,195 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 07:06:17,195 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 07:06:17,196 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:06:17" (1/1) ... [2023-08-26 07:06:17,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 07:06:17,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 07:06:17,226 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-26 07:06:17,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-26 07:06:17,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 07:06:17,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 07:06:17,270 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 07:06:17,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 07:06:17,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 07:06:17,270 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-26 07:06:17,270 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-26 07:06:17,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 07:06:17,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 07:06:17,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 07:06:17,272 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 07:06:17,389 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 07:06:17,390 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 07:06:17,564 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 07:06:17,570 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 07:06:17,570 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-26 07:06:17,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 07:06:17 BoogieIcfgContainer [2023-08-26 07:06:17,572 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 07:06:17,574 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 07:06:17,574 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 07:06:17,576 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 07:06:17,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 07:06:16" (1/3) ... [2023-08-26 07:06:17,577 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a85264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 07:06:17, skipping insertion in model container [2023-08-26 07:06:17,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:06:17" (2/3) ... [2023-08-26 07:06:17,577 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a85264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 07:06:17, skipping insertion in model container [2023-08-26 07:06:17,578 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 07:06:17" (3/3) ... [2023-08-26 07:06:17,578 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_23-idxsense_nr.i [2023-08-26 07:06:17,593 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 07:06:17,593 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-26 07:06:17,593 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 07:06:17,643 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 07:06:17,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 102 transitions, 209 flow [2023-08-26 07:06:17,723 INFO L124 PetriNetUnfolderBase]: 2/101 cut-off events. [2023-08-26 07:06:17,723 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:06:17,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 101 events. 2/101 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2023-08-26 07:06:17,726 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 102 transitions, 209 flow [2023-08-26 07:06:17,730 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 103 places, 101 transitions, 205 flow [2023-08-26 07:06:17,733 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 07:06:17,740 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 101 transitions, 205 flow [2023-08-26 07:06:17,743 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 101 transitions, 205 flow [2023-08-26 07:06:17,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 101 transitions, 205 flow [2023-08-26 07:06:17,765 INFO L124 PetriNetUnfolderBase]: 2/101 cut-off events. [2023-08-26 07:06:17,766 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:06:17,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 101 events. 2/101 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2023-08-26 07:06:17,768 INFO L119 LiptonReduction]: Number of co-enabled transitions 2550 [2023-08-26 07:06:18,990 INFO L134 LiptonReduction]: Checked pairs total: 11251 [2023-08-26 07:06:18,990 INFO L136 LiptonReduction]: Total number of compositions: 50 [2023-08-26 07:06:19,010 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 07:06:19,018 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;@6e64261a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 07:06:19,018 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-08-26 07:06:19,029 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 07:06:19,029 INFO L124 PetriNetUnfolderBase]: 1/16 cut-off events. [2023-08-26 07:06:19,029 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:06:19,029 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:06:19,030 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:06:19,030 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-26 07:06:19,035 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:06:19,036 INFO L85 PathProgramCache]: Analyzing trace with hash -121587775, now seen corresponding path program 1 times [2023-08-26 07:06:19,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:06:19,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146977327] [2023-08-26 07:06:19,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:06:19,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:06:19,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:06:19,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:06:19,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:06:19,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146977327] [2023-08-26 07:06:19,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146977327] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:06:19,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:06:19,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 07:06:19,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180820593] [2023-08-26 07:06:19,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:06:19,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 07:06:19,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:06:19,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 07:06:19,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 07:06:19,306 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 152 [2023-08-26 07:06:19,311 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 52 transitions, 107 flow. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:19,311 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:06:19,311 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 152 [2023-08-26 07:06:19,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:06:19,439 INFO L124 PetriNetUnfolderBase]: 61/273 cut-off events. [2023-08-26 07:06:19,440 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:06:19,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 419 conditions, 273 events. 61/273 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1165 event pairs, 60 based on Foata normal form. 0/261 useless extension candidates. Maximal degree in co-relation 404. Up to 141 conditions per place. [2023-08-26 07:06:19,446 INFO L140 encePairwiseOnDemand]: 149/152 looper letters, 19 selfloop transitions, 2 changer transitions 0/53 dead transitions. [2023-08-26 07:06:19,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 53 transitions, 151 flow [2023-08-26 07:06:19,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 07:06:19,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 07:06:19,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2023-08-26 07:06:19,464 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6535087719298246 [2023-08-26 07:06:19,465 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 298 transitions. [2023-08-26 07:06:19,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 298 transitions. [2023-08-26 07:06:19,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:06:19,470 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 298 transitions. [2023-08-26 07:06:19,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:19,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:19,481 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:19,483 INFO L175 Difference]: Start difference. First operand has 55 places, 52 transitions, 107 flow. Second operand 3 states and 298 transitions. [2023-08-26 07:06:19,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 53 transitions, 151 flow [2023-08-26 07:06:19,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 53 transitions, 150 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 07:06:19,487 INFO L231 Difference]: Finished difference. Result has 57 places, 53 transitions, 118 flow [2023-08-26 07:06:19,490 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=57, PETRI_TRANSITIONS=53} [2023-08-26 07:06:19,493 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 2 predicate places. [2023-08-26 07:06:19,493 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 53 transitions, 118 flow [2023-08-26 07:06:19,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:19,494 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:06:19,494 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:06:19,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 07:06:19,495 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-26 07:06:19,495 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:06:19,495 INFO L85 PathProgramCache]: Analyzing trace with hash 464584451, now seen corresponding path program 1 times [2023-08-26 07:06:19,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:06:19,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843689633] [2023-08-26 07:06:19,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:06:19,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:06:19,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:06:19,604 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:06:19,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:06:19,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843689633] [2023-08-26 07:06:19,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843689633] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 07:06:19,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625802298] [2023-08-26 07:06:19,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:06:19,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:06:19,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 07:06:19,641 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 07:06:19,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-26 07:06:19,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:06:19,727 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-26 07:06:19,730 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 07:06:19,759 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:06:19,759 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 07:06:19,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:06:19,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625802298] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 07:06:19,795 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 07:06:19,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-08-26 07:06:19,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245898141] [2023-08-26 07:06:19,796 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 07:06:19,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 07:06:19,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:06:19,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 07:06:19,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 07:06:19,798 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 152 [2023-08-26 07:06:19,799 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 53 transitions, 118 flow. Second operand has 6 states, 6 states have (on average 93.33333333333333) internal successors, (560), 6 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:19,799 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:06:19,799 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 152 [2023-08-26 07:06:19,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:06:19,898 INFO L124 PetriNetUnfolderBase]: 61/276 cut-off events. [2023-08-26 07:06:19,899 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:06:19,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 434 conditions, 276 events. 61/276 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1149 event pairs, 60 based on Foata normal form. 0/264 useless extension candidates. Maximal degree in co-relation 423. Up to 141 conditions per place. [2023-08-26 07:06:19,903 INFO L140 encePairwiseOnDemand]: 149/152 looper letters, 19 selfloop transitions, 5 changer transitions 0/56 dead transitions. [2023-08-26 07:06:19,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 56 transitions, 178 flow [2023-08-26 07:06:19,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 07:06:19,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 07:06:19,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 579 transitions. [2023-08-26 07:06:19,906 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6348684210526315 [2023-08-26 07:06:19,906 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 579 transitions. [2023-08-26 07:06:19,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 579 transitions. [2023-08-26 07:06:19,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:06:19,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 579 transitions. [2023-08-26 07:06:19,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 96.5) internal successors, (579), 6 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:19,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 152.0) internal successors, (1064), 7 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:19,911 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 152.0) internal successors, (1064), 7 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:19,911 INFO L175 Difference]: Start difference. First operand has 57 places, 53 transitions, 118 flow. Second operand 6 states and 579 transitions. [2023-08-26 07:06:19,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 56 transitions, 178 flow [2023-08-26 07:06:19,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 56 transitions, 174 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-26 07:06:19,913 INFO L231 Difference]: Finished difference. Result has 64 places, 56 transitions, 150 flow [2023-08-26 07:06:19,913 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=150, PETRI_PLACES=64, PETRI_TRANSITIONS=56} [2023-08-26 07:06:19,914 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 9 predicate places. [2023-08-26 07:06:19,914 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 56 transitions, 150 flow [2023-08-26 07:06:19,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 93.33333333333333) internal successors, (560), 6 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:19,915 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:06:19,915 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:06:19,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-26 07:06:20,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:06:20,120 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-26 07:06:20,121 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:06:20,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1446606913, now seen corresponding path program 2 times [2023-08-26 07:06:20,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:06:20,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667337687] [2023-08-26 07:06:20,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:06:20,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:06:20,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:06:20,517 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-26 07:06:20,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:06:20,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667337687] [2023-08-26 07:06:20,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667337687] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:06:20,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:06:20,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 07:06:20,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080667788] [2023-08-26 07:06:20,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:06:20,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 07:06:20,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:06:20,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 07:06:20,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 07:06:20,521 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 152 [2023-08-26 07:06:20,522 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 56 transitions, 150 flow. Second operand has 6 states, 6 states have (on average 57.833333333333336) internal successors, (347), 6 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:20,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:06:20,522 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 152 [2023-08-26 07:06:20,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:06:20,835 INFO L124 PetriNetUnfolderBase]: 481/1030 cut-off events. [2023-08-26 07:06:20,835 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-26 07:06:20,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2071 conditions, 1030 events. 481/1030 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4393 event pairs, 384 based on Foata normal form. 0/916 useless extension candidates. Maximal degree in co-relation 2038. Up to 817 conditions per place. [2023-08-26 07:06:20,842 INFO L140 encePairwiseOnDemand]: 146/152 looper letters, 113 selfloop transitions, 5 changer transitions 0/119 dead transitions. [2023-08-26 07:06:20,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 119 transitions, 512 flow [2023-08-26 07:06:20,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 07:06:20,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 07:06:20,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 451 transitions. [2023-08-26 07:06:20,844 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49451754385964913 [2023-08-26 07:06:20,844 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 451 transitions. [2023-08-26 07:06:20,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 451 transitions. [2023-08-26 07:06:20,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:06:20,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 451 transitions. [2023-08-26 07:06:20,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 75.16666666666667) internal successors, (451), 6 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) [2023-08-26 07:06:20,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 152.0) internal successors, (1064), 7 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:20,848 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 152.0) internal successors, (1064), 7 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:20,848 INFO L175 Difference]: Start difference. First operand has 64 places, 56 transitions, 150 flow. Second operand 6 states and 451 transitions. [2023-08-26 07:06:20,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 119 transitions, 512 flow [2023-08-26 07:06:20,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 119 transitions, 498 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-26 07:06:20,852 INFO L231 Difference]: Finished difference. Result has 67 places, 55 transitions, 144 flow [2023-08-26 07:06:20,852 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=144, PETRI_PLACES=67, PETRI_TRANSITIONS=55} [2023-08-26 07:06:20,853 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 12 predicate places. [2023-08-26 07:06:20,853 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 55 transitions, 144 flow [2023-08-26 07:06:20,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 57.833333333333336) internal successors, (347), 6 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:20,854 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:06:20,854 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:06:20,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 07:06:20,854 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-26 07:06:20,854 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:06:20,855 INFO L85 PathProgramCache]: Analyzing trace with hash 944486463, now seen corresponding path program 1 times [2023-08-26 07:06:20,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:06:20,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976081711] [2023-08-26 07:06:20,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:06:20,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:06:20,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:06:21,065 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-26 07:06:21,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:06:21,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976081711] [2023-08-26 07:06:21,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976081711] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:06:21,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:06:21,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 07:06:21,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522746745] [2023-08-26 07:06:21,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:06:21,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 07:06:21,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:06:21,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 07:06:21,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 07:06:21,068 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 152 [2023-08-26 07:06:21,068 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 55 transitions, 144 flow. Second operand has 6 states, 6 states have (on average 57.833333333333336) internal successors, (347), 6 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:21,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:06:21,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 152 [2023-08-26 07:06:21,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:06:21,684 INFO L124 PetriNetUnfolderBase]: 618/1321 cut-off events. [2023-08-26 07:06:21,684 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2023-08-26 07:06:21,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2734 conditions, 1321 events. 618/1321 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 6474 event pairs, 237 based on Foata normal form. 0/1182 useless extension candidates. Maximal degree in co-relation 2707. Up to 653 conditions per place. [2023-08-26 07:06:21,691 INFO L140 encePairwiseOnDemand]: 130/152 looper letters, 194 selfloop transitions, 42 changer transitions 0/237 dead transitions. [2023-08-26 07:06:21,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 237 transitions, 1020 flow [2023-08-26 07:06:21,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 07:06:21,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 07:06:21,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 570 transitions. [2023-08-26 07:06:21,693 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.625 [2023-08-26 07:06:21,693 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 570 transitions. [2023-08-26 07:06:21,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 570 transitions. [2023-08-26 07:06:21,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:06:21,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 570 transitions. [2023-08-26 07:06:21,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 95.0) internal successors, (570), 6 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:21,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 152.0) internal successors, (1064), 7 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:21,698 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 152.0) internal successors, (1064), 7 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:21,698 INFO L175 Difference]: Start difference. First operand has 67 places, 55 transitions, 144 flow. Second operand 6 states and 570 transitions. [2023-08-26 07:06:21,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 237 transitions, 1020 flow [2023-08-26 07:06:21,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 237 transitions, 970 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-26 07:06:21,703 INFO L231 Difference]: Finished difference. Result has 72 places, 101 transitions, 450 flow [2023-08-26 07:06:21,703 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=450, PETRI_PLACES=72, PETRI_TRANSITIONS=101} [2023-08-26 07:06:21,703 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 17 predicate places. [2023-08-26 07:06:21,704 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 101 transitions, 450 flow [2023-08-26 07:06:21,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 57.833333333333336) internal successors, (347), 6 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:21,704 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:06:21,704 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:06:21,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 07:06:21,705 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-26 07:06:21,705 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:06:21,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1171073865, now seen corresponding path program 1 times [2023-08-26 07:06:21,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:06:21,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601355289] [2023-08-26 07:06:21,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:06:21,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:06:21,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:06:21,807 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:06:21,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:06:21,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601355289] [2023-08-26 07:06:21,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601355289] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 07:06:21,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312590634] [2023-08-26 07:06:21,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:06:21,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:06:21,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 07:06:21,809 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 07:06:21,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-26 07:06:21,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:06:21,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-26 07:06:21,882 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 07:06:21,901 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:06:21,902 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 07:06:21,960 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:06:21,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [312590634] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 07:06:21,961 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 07:06:21,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-08-26 07:06:21,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199276344] [2023-08-26 07:06:21,961 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 07:06:21,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-26 07:06:21,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:06:21,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-26 07:06:21,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-08-26 07:06:21,963 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 152 [2023-08-26 07:06:21,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 101 transitions, 450 flow. Second operand has 13 states, 13 states have (on average 93.38461538461539) internal successors, (1214), 13 states have internal predecessors, (1214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:21,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:06:21,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 152 [2023-08-26 07:06:21,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:06:22,112 INFO L124 PetriNetUnfolderBase]: 181/619 cut-off events. [2023-08-26 07:06:22,112 INFO L125 PetriNetUnfolderBase]: For 277/302 co-relation queries the response was YES. [2023-08-26 07:06:22,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1539 conditions, 619 events. 181/619 cut-off events. For 277/302 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3468 event pairs, 88 based on Foata normal form. 8/597 useless extension candidates. Maximal degree in co-relation 1484. Up to 265 conditions per place. [2023-08-26 07:06:22,117 INFO L140 encePairwiseOnDemand]: 149/152 looper letters, 35 selfloop transitions, 11 changer transitions 0/107 dead transitions. [2023-08-26 07:06:22,117 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 107 transitions, 578 flow [2023-08-26 07:06:22,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-26 07:06:22,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-26 07:06:22,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1140 transitions. [2023-08-26 07:06:22,120 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.625 [2023-08-26 07:06:22,120 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1140 transitions. [2023-08-26 07:06:22,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1140 transitions. [2023-08-26 07:06:22,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:06:22,121 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1140 transitions. [2023-08-26 07:06:22,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 95.0) internal successors, (1140), 12 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:22,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 152.0) internal successors, (1976), 13 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:22,126 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 152.0) internal successors, (1976), 13 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:22,126 INFO L175 Difference]: Start difference. First operand has 72 places, 101 transitions, 450 flow. Second operand 12 states and 1140 transitions. [2023-08-26 07:06:22,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 107 transitions, 578 flow [2023-08-26 07:06:22,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 107 transitions, 578 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 07:06:22,132 INFO L231 Difference]: Finished difference. Result has 89 places, 107 transitions, 534 flow [2023-08-26 07:06:22,132 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=534, PETRI_PLACES=89, PETRI_TRANSITIONS=107} [2023-08-26 07:06:22,133 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 34 predicate places. [2023-08-26 07:06:22,133 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 107 transitions, 534 flow [2023-08-26 07:06:22,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 93.38461538461539) internal successors, (1214), 13 states have internal predecessors, (1214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:22,134 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:06:22,134 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:06:22,144 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-26 07:06:22,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:06:22,344 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-26 07:06:22,344 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:06:22,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1529035767, now seen corresponding path program 2 times [2023-08-26 07:06:22,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:06:22,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056837698] [2023-08-26 07:06:22,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:06:22,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:06:22,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:06:22,737 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 07:06:22,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:06:22,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056837698] [2023-08-26 07:06:22,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056837698] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:06:22,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:06:22,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 07:06:22,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867476564] [2023-08-26 07:06:22,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:06:22,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 07:06:22,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:06:22,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 07:06:22,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 07:06:22,740 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 152 [2023-08-26 07:06:22,740 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 107 transitions, 534 flow. Second operand has 6 states, 6 states have (on average 55.833333333333336) internal successors, (335), 6 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:22,740 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:06:22,740 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 152 [2023-08-26 07:06:22,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:06:23,025 INFO L124 PetriNetUnfolderBase]: 603/1296 cut-off events. [2023-08-26 07:06:23,025 INFO L125 PetriNetUnfolderBase]: For 674/674 co-relation queries the response was YES. [2023-08-26 07:06:23,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3755 conditions, 1296 events. 603/1296 cut-off events. For 674/674 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 6141 event pairs, 354 based on Foata normal form. 0/1295 useless extension candidates. Maximal degree in co-relation 3675. Up to 1133 conditions per place. [2023-08-26 07:06:23,035 INFO L140 encePairwiseOnDemand]: 146/152 looper letters, 160 selfloop transitions, 5 changer transitions 0/166 dead transitions. [2023-08-26 07:06:23,035 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 166 transitions, 1110 flow [2023-08-26 07:06:23,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 07:06:23,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 07:06:23,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 428 transitions. [2023-08-26 07:06:23,037 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4692982456140351 [2023-08-26 07:06:23,037 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 428 transitions. [2023-08-26 07:06:23,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 428 transitions. [2023-08-26 07:06:23,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:06:23,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 428 transitions. [2023-08-26 07:06:23,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 71.33333333333333) internal successors, (428), 6 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:23,039 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 152.0) internal successors, (1064), 7 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:23,040 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 152.0) internal successors, (1064), 7 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:23,040 INFO L175 Difference]: Start difference. First operand has 89 places, 107 transitions, 534 flow. Second operand 6 states and 428 transitions. [2023-08-26 07:06:23,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 166 transitions, 1110 flow [2023-08-26 07:06:23,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 166 transitions, 1062 flow, removed 19 selfloop flow, removed 5 redundant places. [2023-08-26 07:06:23,046 INFO L231 Difference]: Finished difference. Result has 88 places, 106 transitions, 494 flow [2023-08-26 07:06:23,046 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=494, PETRI_PLACES=88, PETRI_TRANSITIONS=106} [2023-08-26 07:06:23,047 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 33 predicate places. [2023-08-26 07:06:23,047 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 106 transitions, 494 flow [2023-08-26 07:06:23,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.833333333333336) internal successors, (335), 6 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:23,048 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:06:23,048 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:06:23,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 07:06:23,048 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-26 07:06:23,048 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:06:23,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1485621370, now seen corresponding path program 1 times [2023-08-26 07:06:23,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:06:23,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511965670] [2023-08-26 07:06:23,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:06:23,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:06:23,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:06:23,281 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 07:06:23,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:06:23,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511965670] [2023-08-26 07:06:23,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511965670] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:06:23,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:06:23,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 07:06:23,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762990907] [2023-08-26 07:06:23,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:06:23,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 07:06:23,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:06:23,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 07:06:23,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 07:06:23,284 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 152 [2023-08-26 07:06:23,284 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 106 transitions, 494 flow. Second operand has 6 states, 6 states have (on average 56.833333333333336) internal successors, (341), 6 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:23,284 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:06:23,284 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 152 [2023-08-26 07:06:23,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:06:23,772 INFO L124 PetriNetUnfolderBase]: 684/1471 cut-off events. [2023-08-26 07:06:23,773 INFO L125 PetriNetUnfolderBase]: For 819/819 co-relation queries the response was YES. [2023-08-26 07:06:23,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4375 conditions, 1471 events. 684/1471 cut-off events. For 819/819 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 7296 event pairs, 312 based on Foata normal form. 38/1508 useless extension candidates. Maximal degree in co-relation 4319. Up to 1088 conditions per place. [2023-08-26 07:06:23,782 INFO L140 encePairwiseOnDemand]: 136/152 looper letters, 196 selfloop transitions, 46 changer transitions 6/249 dead transitions. [2023-08-26 07:06:23,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 249 transitions, 1502 flow [2023-08-26 07:06:23,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 07:06:23,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 07:06:23,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 506 transitions. [2023-08-26 07:06:23,784 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5548245614035088 [2023-08-26 07:06:23,784 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 506 transitions. [2023-08-26 07:06:23,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 506 transitions. [2023-08-26 07:06:23,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:06:23,785 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 506 transitions. [2023-08-26 07:06:23,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 84.33333333333333) internal successors, (506), 6 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:23,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 152.0) internal successors, (1064), 7 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:23,788 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 152.0) internal successors, (1064), 7 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:23,788 INFO L175 Difference]: Start difference. First operand has 88 places, 106 transitions, 494 flow. Second operand 6 states and 506 transitions. [2023-08-26 07:06:23,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 249 transitions, 1502 flow [2023-08-26 07:06:23,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 249 transitions, 1452 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-26 07:06:23,795 INFO L231 Difference]: Finished difference. Result has 92 places, 149 transitions, 907 flow [2023-08-26 07:06:23,795 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=907, PETRI_PLACES=92, PETRI_TRANSITIONS=149} [2023-08-26 07:06:23,796 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 37 predicate places. [2023-08-26 07:06:23,796 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 149 transitions, 907 flow [2023-08-26 07:06:23,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.833333333333336) internal successors, (341), 6 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:23,796 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:06:23,797 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:06:23,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 07:06:23,797 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-26 07:06:23,797 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:06:23,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1541233457, now seen corresponding path program 1 times [2023-08-26 07:06:23,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:06:23,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822192698] [2023-08-26 07:06:23,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:06:23,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:06:23,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:06:24,132 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 07:06:24,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:06:24,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822192698] [2023-08-26 07:06:24,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822192698] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:06:24,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:06:24,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 07:06:24,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522746925] [2023-08-26 07:06:24,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:06:24,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 07:06:24,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:06:24,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 07:06:24,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 07:06:24,135 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 152 [2023-08-26 07:06:24,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 149 transitions, 907 flow. Second operand has 6 states, 6 states have (on average 58.0) internal successors, (348), 6 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:24,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:06:24,135 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 152 [2023-08-26 07:06:24,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:06:24,523 INFO L124 PetriNetUnfolderBase]: 782/1690 cut-off events. [2023-08-26 07:06:24,523 INFO L125 PetriNetUnfolderBase]: For 2151/2151 co-relation queries the response was YES. [2023-08-26 07:06:24,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5908 conditions, 1690 events. 782/1690 cut-off events. For 2151/2151 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 8763 event pairs, 355 based on Foata normal form. 25/1714 useless extension candidates. Maximal degree in co-relation 5848. Up to 1271 conditions per place. [2023-08-26 07:06:24,535 INFO L140 encePairwiseOnDemand]: 135/152 looper letters, 164 selfloop transitions, 58 changer transitions 28/251 dead transitions. [2023-08-26 07:06:24,536 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 251 transitions, 1919 flow [2023-08-26 07:06:24,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 07:06:24,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 07:06:24,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 452 transitions. [2023-08-26 07:06:24,538 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4956140350877193 [2023-08-26 07:06:24,538 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 452 transitions. [2023-08-26 07:06:24,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 452 transitions. [2023-08-26 07:06:24,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:06:24,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 452 transitions. [2023-08-26 07:06:24,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 75.33333333333333) internal successors, (452), 6 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:24,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 152.0) internal successors, (1064), 7 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:24,541 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 152.0) internal successors, (1064), 7 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:24,541 INFO L175 Difference]: Start difference. First operand has 92 places, 149 transitions, 907 flow. Second operand 6 states and 452 transitions. [2023-08-26 07:06:24,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 251 transitions, 1919 flow [2023-08-26 07:06:24,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 251 transitions, 1885 flow, removed 17 selfloop flow, removed 0 redundant places. [2023-08-26 07:06:24,554 INFO L231 Difference]: Finished difference. Result has 101 places, 181 transitions, 1302 flow [2023-08-26 07:06:24,554 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=873, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1302, PETRI_PLACES=101, PETRI_TRANSITIONS=181} [2023-08-26 07:06:24,557 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 46 predicate places. [2023-08-26 07:06:24,557 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 181 transitions, 1302 flow [2023-08-26 07:06:24,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 58.0) internal successors, (348), 6 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:24,559 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:06:24,559 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:06:24,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 07:06:24,559 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-26 07:06:24,559 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:06:24,560 INFO L85 PathProgramCache]: Analyzing trace with hash 2079724028, now seen corresponding path program 1 times [2023-08-26 07:06:24,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:06:24,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381049239] [2023-08-26 07:06:24,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:06:24,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:06:24,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:06:24,717 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 07:06:24,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:06:24,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381049239] [2023-08-26 07:06:24,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381049239] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:06:24,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:06:24,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 07:06:24,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096398612] [2023-08-26 07:06:24,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:06:24,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 07:06:24,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:06:24,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 07:06:24,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 07:06:24,720 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 152 [2023-08-26 07:06:24,720 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 181 transitions, 1302 flow. Second operand has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:24,721 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:06:24,721 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 152 [2023-08-26 07:06:24,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:06:24,771 INFO L124 PetriNetUnfolderBase]: 32/178 cut-off events. [2023-08-26 07:06:24,771 INFO L125 PetriNetUnfolderBase]: For 301/307 co-relation queries the response was YES. [2023-08-26 07:06:24,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 558 conditions, 178 events. 32/178 cut-off events. For 301/307 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 510 event pairs, 17 based on Foata normal form. 16/191 useless extension candidates. Maximal degree in co-relation 493. Up to 70 conditions per place. [2023-08-26 07:06:24,772 INFO L140 encePairwiseOnDemand]: 148/152 looper letters, 0 selfloop transitions, 0 changer transitions 61/61 dead transitions. [2023-08-26 07:06:24,772 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 61 transitions, 372 flow [2023-08-26 07:06:24,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 07:06:24,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 07:06:24,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 301 transitions. [2023-08-26 07:06:24,774 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6600877192982456 [2023-08-26 07:06:24,774 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 301 transitions. [2023-08-26 07:06:24,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 301 transitions. [2023-08-26 07:06:24,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:06:24,775 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 301 transitions. [2023-08-26 07:06:24,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:24,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:24,776 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:24,776 INFO L175 Difference]: Start difference. First operand has 101 places, 181 transitions, 1302 flow. Second operand 3 states and 301 transitions. [2023-08-26 07:06:24,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 61 transitions, 372 flow [2023-08-26 07:06:24,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 61 transitions, 242 flow, removed 27 selfloop flow, removed 28 redundant places. [2023-08-26 07:06:24,779 INFO L231 Difference]: Finished difference. Result has 71 places, 0 transitions, 0 flow [2023-08-26 07:06:24,779 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=71, PETRI_TRANSITIONS=0} [2023-08-26 07:06:24,780 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 16 predicate places. [2023-08-26 07:06:24,780 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 0 transitions, 0 flow [2023-08-26 07:06:24,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:06:24,782 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2023-08-26 07:06:24,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2023-08-26 07:06:24,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2023-08-26 07:06:24,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2023-08-26 07:06:24,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2023-08-26 07:06:24,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2023-08-26 07:06:24,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2023-08-26 07:06:24,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2023-08-26 07:06:24,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2023-08-26 07:06:24,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 07:06:24,784 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1] [2023-08-26 07:06:24,788 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 07:06:24,788 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 07:06:24,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 07:06:24 BasicIcfg [2023-08-26 07:06:24,793 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 07:06:24,793 INFO L158 Benchmark]: Toolchain (without parser) took 8185.41ms. Allocated memory was 367.0MB in the beginning and 551.6MB in the end (delta: 184.5MB). Free memory was 342.6MB in the beginning and 462.4MB in the end (delta: -119.8MB). Peak memory consumption was 65.1MB. Max. memory is 16.0GB. [2023-08-26 07:06:24,794 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 367.0MB. Free memory was 344.1MB in the beginning and 344.0MB in the end (delta: 94.0kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 07:06:24,794 INFO L158 Benchmark]: CACSL2BoogieTranslator took 478.29ms. Allocated memory is still 367.0MB. Free memory was 342.2MB in the beginning and 323.0MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-26 07:06:24,794 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.48ms. Allocated memory is still 367.0MB. Free memory was 323.0MB in the beginning and 320.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 07:06:24,796 INFO L158 Benchmark]: Boogie Preprocessor took 43.54ms. Allocated memory is still 367.0MB. Free memory was 320.6MB in the beginning and 318.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 07:06:24,796 INFO L158 Benchmark]: RCFGBuilder took 376.89ms. Allocated memory is still 367.0MB. Free memory was 318.8MB in the beginning and 302.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-26 07:06:24,796 INFO L158 Benchmark]: TraceAbstraction took 7219.24ms. Allocated memory was 367.0MB in the beginning and 551.6MB in the end (delta: 184.5MB). Free memory was 301.3MB in the beginning and 462.4MB in the end (delta: -161.0MB). Peak memory consumption was 25.3MB. Max. memory is 16.0GB. [2023-08-26 07:06:24,797 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 367.0MB. Free memory was 344.1MB in the beginning and 344.0MB in the end (delta: 94.0kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 478.29ms. Allocated memory is still 367.0MB. Free memory was 342.2MB in the beginning and 323.0MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 62.48ms. Allocated memory is still 367.0MB. Free memory was 323.0MB in the beginning and 320.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 43.54ms. Allocated memory is still 367.0MB. Free memory was 320.6MB in the beginning and 318.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 376.89ms. Allocated memory is still 367.0MB. Free memory was 318.8MB in the beginning and 302.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 7219.24ms. Allocated memory was 367.0MB in the beginning and 551.6MB in the end (delta: 184.5MB). Free memory was 301.3MB in the beginning and 462.4MB in the end (delta: -161.0MB). Peak memory consumption was 25.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.2s, 103 PlacesBefore, 55 PlacesAfterwards, 101 TransitionsBefore, 52 TransitionsAfterwards, 2550 CoEnabledTransitionPairs, 4 FixpointIterations, 19 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 50 TotalNumberOfCompositions, 11251 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2271, independent: 1842, independent conditional: 0, independent unconditional: 1842, dependent: 429, dependent conditional: 0, dependent unconditional: 429, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1047, independent: 944, independent conditional: 0, independent unconditional: 944, dependent: 103, dependent conditional: 0, dependent unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2271, independent: 898, independent conditional: 0, independent unconditional: 898, dependent: 326, dependent conditional: 0, dependent unconditional: 326, unknown: 1047, unknown conditional: 0, unknown unconditional: 1047] , Statistics on independence cache: Total cache size (in pairs): 207, Positive cache size: 135, Positive conditional cache size: 0, Positive unconditional cache size: 135, Negative cache size: 72, Negative conditional cache size: 0, Negative unconditional cache size: 72, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 683]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 683]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 128 locations, 9 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: 7.1s, OverallIterations: 9, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 230 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 230 mSDsluCounter, 125 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 221 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1911 IncrementalHoareTripleChecker+Invalid, 2132 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 221 mSolverCounterUnsat, 125 mSDtfsCounter, 1911 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1302occurred in iteration=8, InterpolantAutomatonStates: 54, 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: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 235 NumberOfCodeBlocks, 235 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 253 ConstructedInterpolants, 0 QuantifiedInterpolants, 942 SizeOfPredicates, 0 NumberOfNonLiveVariables, 233 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 13 InterpolantComputations, 7 PerfectInterpolantSequences, 240/273 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-26 07:06:24,816 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...