/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/pthread/bigshot_s2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 21:51:41,906 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 21:51:41,976 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 21:51:41,981 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 21:51:41,982 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 21:51:42,006 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 21:51:42,007 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 21:51:42,007 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 21:51:42,007 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 21:51:42,010 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 21:51:42,011 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 21:51:42,011 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 21:51:42,011 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 21:51:42,012 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 21:51:42,012 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 21:51:42,012 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 21:51:42,012 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 21:51:42,013 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 21:51:42,013 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 21:51:42,013 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 21:51:42,013 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 21:51:42,014 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 21:51:42,014 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 21:51:42,014 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 21:51:42,014 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 21:51:42,015 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 21:51:42,015 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 21:51:42,015 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 21:51:42,015 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 21:51:42,015 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 21:51:42,016 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 21:51:42,016 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 21:51:42,016 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 21:51:42,016 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 21:51:42,017 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 21:51:42,017 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 21:51:42,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 21:51:42,309 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 21:51:42,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 21:51:42,312 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 21:51:42,314 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 21:51:42,315 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/bigshot_s2.i [2023-08-25 21:51:43,359 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 21:51:43,609 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 21:51:43,609 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/bigshot_s2.i [2023-08-25 21:51:43,635 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6fda2ee3/a8cc8ebed9aa4443b161edc3c53e6969/FLAG209679a8c [2023-08-25 21:51:43,647 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6fda2ee3/a8cc8ebed9aa4443b161edc3c53e6969 [2023-08-25 21:51:43,651 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 21:51:43,652 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 21:51:43,654 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 21:51:43,654 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 21:51:43,656 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 21:51:43,657 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 09:51:43" (1/1) ... [2023-08-25 21:51:43,658 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ae1fd64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:51:43, skipping insertion in model container [2023-08-25 21:51:43,658 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 09:51:43" (1/1) ... [2023-08-25 21:51:43,694 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 21:51:44,031 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 21:51:44,038 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 21:51:44,052 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [274] [2023-08-25 21:51:44,053 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [274] [2023-08-25 21:51:44,078 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 21:51:44,141 INFO L206 MainTranslator]: Completed translation [2023-08-25 21:51:44,141 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:51:44 WrapperNode [2023-08-25 21:51:44,142 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 21:51:44,142 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 21:51:44,143 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 21:51:44,143 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 21:51:44,147 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:51:44" (1/1) ... [2023-08-25 21:51:44,166 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:51:44" (1/1) ... [2023-08-25 21:51:44,185 INFO L138 Inliner]: procedures = 323, calls = 34, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 92 [2023-08-25 21:51:44,185 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 21:51:44,186 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 21:51:44,186 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 21:51:44,186 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 21:51:44,194 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:51:44" (1/1) ... [2023-08-25 21:51:44,195 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:51:44" (1/1) ... [2023-08-25 21:51:44,197 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:51:44" (1/1) ... [2023-08-25 21:51:44,197 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:51:44" (1/1) ... [2023-08-25 21:51:44,201 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:51:44" (1/1) ... [2023-08-25 21:51:44,203 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:51:44" (1/1) ... [2023-08-25 21:51:44,204 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:51:44" (1/1) ... [2023-08-25 21:51:44,205 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:51:44" (1/1) ... [2023-08-25 21:51:44,207 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 21:51:44,209 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 21:51:44,209 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 21:51:44,209 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 21:51:44,209 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:51:44" (1/1) ... [2023-08-25 21:51:44,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 21:51:44,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 21:51:44,245 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 21:51:44,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 21:51:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 21:51:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 21:51:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-08-25 21:51:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 21:51:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 21:51:44,269 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 21:51:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 21:51:44,270 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 21:51:44,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 21:51:44,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-25 21:51:44,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 21:51:44,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 21:51:44,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 21:51:44,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 21:51:44,271 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 21:51:44,364 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 21:51:44,365 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 21:51:44,561 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 21:51:44,566 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 21:51:44,566 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-25 21:51:44,567 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 09:51:44 BoogieIcfgContainer [2023-08-25 21:51:44,567 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 21:51:44,571 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 21:51:44,571 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 21:51:44,573 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 21:51:44,573 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 09:51:43" (1/3) ... [2023-08-25 21:51:44,574 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2389286 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 09:51:44, skipping insertion in model container [2023-08-25 21:51:44,574 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:51:44" (2/3) ... [2023-08-25 21:51:44,574 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2389286 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 09:51:44, skipping insertion in model container [2023-08-25 21:51:44,574 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 09:51:44" (3/3) ... [2023-08-25 21:51:44,575 INFO L112 eAbstractionObserver]: Analyzing ICFG bigshot_s2.i [2023-08-25 21:51:44,586 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 21:51:44,586 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-25 21:51:44,587 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 21:51:44,660 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-25 21:51:44,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 117 places, 115 transitions, 246 flow [2023-08-25 21:51:44,745 INFO L124 PetriNetUnfolderBase]: 5/113 cut-off events. [2023-08-25 21:51:44,746 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 21:51:44,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 113 events. 5/113 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 94 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2023-08-25 21:51:44,749 INFO L82 GeneralOperation]: Start removeDead. Operand has 117 places, 115 transitions, 246 flow [2023-08-25 21:51:44,753 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 100 transitions, 212 flow [2023-08-25 21:51:44,755 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 21:51:44,763 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 100 transitions, 212 flow [2023-08-25 21:51:44,765 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 104 places, 100 transitions, 212 flow [2023-08-25 21:51:44,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 100 transitions, 212 flow [2023-08-25 21:51:44,794 INFO L124 PetriNetUnfolderBase]: 3/100 cut-off events. [2023-08-25 21:51:44,794 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 21:51:44,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 100 events. 3/100 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2023-08-25 21:51:44,795 INFO L119 LiptonReduction]: Number of co-enabled transitions 630 [2023-08-25 21:51:47,502 INFO L134 LiptonReduction]: Checked pairs total: 635 [2023-08-25 21:51:47,503 INFO L136 LiptonReduction]: Total number of compositions: 103 [2023-08-25 21:51:47,511 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 21:51:47,521 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;@8163fee, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 21:51:47,521 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-08-25 21:51:47,523 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 21:51:47,523 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-25 21:51:47,523 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 21:51:47,523 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:51:47,523 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 21:51:47,524 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-25 21:51:47,527 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:51:47,527 INFO L85 PathProgramCache]: Analyzing trace with hash 416772, now seen corresponding path program 1 times [2023-08-25 21:51:47,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:51:47,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125845994] [2023-08-25 21:51:47,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:51:47,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:51:47,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:51:47,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:51:47,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:51:47,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125845994] [2023-08-25 21:51:47,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125845994] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:51:47,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:51:47,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 21:51:47,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693742339] [2023-08-25 21:51:47,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:51:47,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 21:51:47,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:51:47,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 21:51:47,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 21:51:47,683 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 218 [2023-08-25 21:51:47,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 21 transitions, 54 flow. Second operand has 2 states, 2 states have (on average 108.5) internal successors, (217), 2 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:51:47,685 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:51:47,685 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 218 [2023-08-25 21:51:47,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:51:47,706 INFO L124 PetriNetUnfolderBase]: 7/22 cut-off events. [2023-08-25 21:51:47,706 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 21:51:47,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 22 events. 7/22 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 17 event pairs, 3 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 33. Up to 23 conditions per place. [2023-08-25 21:51:47,707 INFO L140 encePairwiseOnDemand]: 211/218 looper letters, 14 selfloop transitions, 0 changer transitions 0/14 dead transitions. [2023-08-25 21:51:47,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 14 transitions, 68 flow [2023-08-25 21:51:47,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 21:51:47,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 21:51:47,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 235 transitions. [2023-08-25 21:51:47,716 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5389908256880734 [2023-08-25 21:51:47,716 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 235 transitions. [2023-08-25 21:51:47,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 235 transitions. [2023-08-25 21:51:47,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:51:47,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 235 transitions. [2023-08-25 21:51:47,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 117.5) internal successors, (235), 2 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:51:47,723 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 218.0) internal successors, (654), 3 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:51:47,724 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 218.0) internal successors, (654), 3 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:51:47,725 INFO L175 Difference]: Start difference. First operand has 26 places, 21 transitions, 54 flow. Second operand 2 states and 235 transitions. [2023-08-25 21:51:47,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 14 transitions, 68 flow [2023-08-25 21:51:47,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 14 transitions, 60 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 21:51:47,727 INFO L231 Difference]: Finished difference. Result has 16 places, 14 transitions, 32 flow [2023-08-25 21:51:47,729 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=32, PETRI_PLACES=16, PETRI_TRANSITIONS=14} [2023-08-25 21:51:47,731 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -10 predicate places. [2023-08-25 21:51:47,731 INFO L495 AbstractCegarLoop]: Abstraction has has 16 places, 14 transitions, 32 flow [2023-08-25 21:51:47,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 108.5) internal successors, (217), 2 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:51:47,731 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:51:47,731 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:51:47,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 21:51:47,731 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-25 21:51:47,732 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:51:47,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1409880018, now seen corresponding path program 1 times [2023-08-25 21:51:47,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:51:47,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024529386] [2023-08-25 21:51:47,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:51:47,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:51:47,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:51:47,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:51:47,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:51:47,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024529386] [2023-08-25 21:51:47,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024529386] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:51:47,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:51:47,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 21:51:47,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836725089] [2023-08-25 21:51:47,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:51:47,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 21:51:47,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:51:47,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 21:51:47,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 21:51:47,812 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 218 [2023-08-25 21:51:47,812 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 14 transitions, 32 flow. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:51:47,812 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:51:47,812 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 218 [2023-08-25 21:51:47,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:51:47,831 INFO L124 PetriNetUnfolderBase]: 5/20 cut-off events. [2023-08-25 21:51:47,831 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 21:51:47,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 20 events. 5/20 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 11 event pairs, 2 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 42. Up to 17 conditions per place. [2023-08-25 21:51:47,832 INFO L140 encePairwiseOnDemand]: 216/218 looper letters, 13 selfloop transitions, 1 changer transitions 0/14 dead transitions. [2023-08-25 21:51:47,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 14 transitions, 60 flow [2023-08-25 21:51:47,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 21:51:47,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 21:51:47,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 309 transitions. [2023-08-25 21:51:47,834 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4724770642201835 [2023-08-25 21:51:47,834 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 309 transitions. [2023-08-25 21:51:47,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 309 transitions. [2023-08-25 21:51:47,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:51:47,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 309 transitions. [2023-08-25 21:51:47,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:51:47,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:51:47,837 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:51:47,837 INFO L175 Difference]: Start difference. First operand has 16 places, 14 transitions, 32 flow. Second operand 3 states and 309 transitions. [2023-08-25 21:51:47,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 14 transitions, 60 flow [2023-08-25 21:51:47,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 14 transitions, 60 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 21:51:47,838 INFO L231 Difference]: Finished difference. Result has 18 places, 13 transitions, 32 flow [2023-08-25 21:51:47,838 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=32, PETRI_PLACES=18, PETRI_TRANSITIONS=13} [2023-08-25 21:51:47,839 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -8 predicate places. [2023-08-25 21:51:47,839 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 13 transitions, 32 flow [2023-08-25 21:51:47,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:51:47,839 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:51:47,839 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:51:47,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 21:51:47,840 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-25 21:51:47,840 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:51:47,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1829032538, now seen corresponding path program 1 times [2023-08-25 21:51:47,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:51:47,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346819268] [2023-08-25 21:51:47,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:51:47,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:51:47,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:51:48,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:51:48,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:51:48,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346819268] [2023-08-25 21:51:48,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346819268] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:51:48,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:51:48,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 21:51:48,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482609] [2023-08-25 21:51:48,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:51:48,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 21:51:48,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:51:48,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 21:51:48,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-25 21:51:48,063 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 218 [2023-08-25 21:51:48,063 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 13 transitions, 32 flow. Second operand has 6 states, 6 states have (on average 69.0) internal successors, (414), 6 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:51:48,063 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:51:48,063 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 218 [2023-08-25 21:51:48,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:51:48,103 INFO L124 PetriNetUnfolderBase]: 9/28 cut-off events. [2023-08-25 21:51:48,103 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 21:51:48,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 28 events. 9/28 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 24 event pairs, 2 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 60. Up to 13 conditions per place. [2023-08-25 21:51:48,104 INFO L140 encePairwiseOnDemand]: 214/218 looper letters, 13 selfloop transitions, 5 changer transitions 0/18 dead transitions. [2023-08-25 21:51:48,104 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 18 transitions, 78 flow [2023-08-25 21:51:48,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 21:51:48,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 21:51:48,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 287 transitions. [2023-08-25 21:51:48,105 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3291284403669725 [2023-08-25 21:51:48,105 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 287 transitions. [2023-08-25 21:51:48,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 287 transitions. [2023-08-25 21:51:48,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:51:48,105 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 287 transitions. [2023-08-25 21:51:48,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 71.75) internal successors, (287), 4 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:51:48,108 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 218.0) internal successors, (1090), 5 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:51:48,108 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 218.0) internal successors, (1090), 5 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:51:48,108 INFO L175 Difference]: Start difference. First operand has 18 places, 13 transitions, 32 flow. Second operand 4 states and 287 transitions. [2023-08-25 21:51:48,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 18 transitions, 78 flow [2023-08-25 21:51:48,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 18 transitions, 77 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 21:51:48,109 INFO L231 Difference]: Finished difference. Result has 22 places, 16 transitions, 60 flow [2023-08-25 21:51:48,109 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=31, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=60, PETRI_PLACES=22, PETRI_TRANSITIONS=16} [2023-08-25 21:51:48,110 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -4 predicate places. [2023-08-25 21:51:48,110 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 16 transitions, 60 flow [2023-08-25 21:51:48,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.0) internal successors, (414), 6 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:51:48,110 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:51:48,110 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:51:48,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 21:51:48,111 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-25 21:51:48,111 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:51:48,111 INFO L85 PathProgramCache]: Analyzing trace with hash -866233149, now seen corresponding path program 1 times [2023-08-25 21:51:48,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:51:48,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451957570] [2023-08-25 21:51:48,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:51:48,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:51:48,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:51:48,401 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:51:48,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:51:48,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451957570] [2023-08-25 21:51:48,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451957570] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 21:51:48,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611009807] [2023-08-25 21:51:48,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:51:48,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 21:51:48,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 21:51:48,421 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) [2023-08-25 21:51:48,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-25 21:51:48,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:51:48,523 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 44 conjunts are in the unsatisfiable core [2023-08-25 21:51:48,527 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 21:51:48,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 21:51:48,587 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 21:51:48,601 INFO L322 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2023-08-25 21:51:48,601 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 22 [2023-08-25 21:51:48,642 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 21:51:48,734 INFO L322 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-08-25 21:51:48,734 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2023-08-25 21:51:48,769 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-25 21:51:48,769 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-08-25 21:51:48,790 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:51:48,790 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 21:51:48,900 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:51:48,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [611009807] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 21:51:48,901 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 21:51:48,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 5] total 17 [2023-08-25 21:51:48,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587414392] [2023-08-25 21:51:48,901 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 21:51:48,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-08-25 21:51:48,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:51:48,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-08-25 21:51:48,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2023-08-25 21:51:48,903 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 218 [2023-08-25 21:51:48,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 16 transitions, 60 flow. Second operand has 18 states, 18 states have (on average 56.0) internal successors, (1008), 18 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:51:48,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:51:48,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 218 [2023-08-25 21:51:48,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:51:49,176 INFO L124 PetriNetUnfolderBase]: 14/45 cut-off events. [2023-08-25 21:51:49,176 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-08-25 21:51:49,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 45 events. 14/45 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 62 event pairs, 1 based on Foata normal form. 2/47 useless extension candidates. Maximal degree in co-relation 131. Up to 14 conditions per place. [2023-08-25 21:51:49,177 INFO L140 encePairwiseOnDemand]: 213/218 looper letters, 17 selfloop transitions, 8 changer transitions 5/30 dead transitions. [2023-08-25 21:51:49,177 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 30 transitions, 165 flow [2023-08-25 21:51:49,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 21:51:49,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 21:51:49,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 519 transitions. [2023-08-25 21:51:49,179 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.26452599388379205 [2023-08-25 21:51:49,179 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 519 transitions. [2023-08-25 21:51:49,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 519 transitions. [2023-08-25 21:51:49,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:51:49,179 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 519 transitions. [2023-08-25 21:51:49,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 57.666666666666664) internal successors, (519), 9 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:51:49,183 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 218.0) internal successors, (2180), 10 states have internal predecessors, (2180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:51:49,183 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 218.0) internal successors, (2180), 10 states have internal predecessors, (2180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:51:49,183 INFO L175 Difference]: Start difference. First operand has 22 places, 16 transitions, 60 flow. Second operand 9 states and 519 transitions. [2023-08-25 21:51:49,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 30 transitions, 165 flow [2023-08-25 21:51:49,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 30 transitions, 163 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-08-25 21:51:49,185 INFO L231 Difference]: Finished difference. Result has 34 places, 19 transitions, 104 flow [2023-08-25 21:51:49,185 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=104, PETRI_PLACES=34, PETRI_TRANSITIONS=19} [2023-08-25 21:51:49,185 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 8 predicate places. [2023-08-25 21:51:49,185 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 19 transitions, 104 flow [2023-08-25 21:51:49,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 56.0) internal successors, (1008), 18 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:51:49,186 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:51:49,186 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:51:49,206 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-25 21:51:49,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 21:51:49,392 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-25 21:51:49,392 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:51:49,392 INFO L85 PathProgramCache]: Analyzing trace with hash 2137327274, now seen corresponding path program 2 times [2023-08-25 21:51:49,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:51:49,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452830230] [2023-08-25 21:51:49,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:51:49,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:51:49,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:51:49,891 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:51:49,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:51:49,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452830230] [2023-08-25 21:51:49,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452830230] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 21:51:49,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310364204] [2023-08-25 21:51:49,895 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 21:51:49,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 21:51:49,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 21:51:49,911 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) [2023-08-25 21:51:49,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-25 21:51:50,058 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 21:51:50,058 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 21:51:50,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 38 conjunts are in the unsatisfiable core [2023-08-25 21:51:50,062 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 21:51:50,093 INFO L322 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2023-08-25 21:51:50,093 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 37 [2023-08-25 21:51:50,099 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 21:51:50,161 INFO L322 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2023-08-25 21:51:50,162 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2023-08-25 21:51:50,193 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 21:51:50,251 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 21:51:50,289 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 21:51:50,316 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 21:51:50,351 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 21:51:50,375 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:51:50,375 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 21:51:50,400 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_192 (Array Int Int))) (< 0 (select (select (store |c_#memory_int| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.base| v_ArrVal_192) |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src#1.base|) (+ |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset14#1| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src#1.offset| 1)))) is different from false [2023-08-25 21:51:50,405 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_192 (Array Int Int))) (< 0 (select (select (store |c_#memory_int| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.base| v_ArrVal_192) |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src#1.base|) (+ |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset14#1| 2 |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src#1.offset|)))) is different from false [2023-08-25 21:51:50,410 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_192 (Array Int Int))) (< 0 (select (select (store |c_#memory_int| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.base| v_ArrVal_192) |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src#1.base|) (+ |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset14#1| 3 |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src#1.offset|)))) is different from false [2023-08-25 21:51:50,557 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 9 not checked. [2023-08-25 21:51:50,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [310364204] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 21:51:50,557 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 21:51:50,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 26 [2023-08-25 21:51:50,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974606723] [2023-08-25 21:51:50,558 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 21:51:50,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-08-25 21:51:50,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:51:50,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-08-25 21:51:50,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=484, Unknown=5, NotChecked=138, Total=702 [2023-08-25 21:51:50,560 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 218 [2023-08-25 21:51:50,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 19 transitions, 104 flow. Second operand has 27 states, 27 states have (on average 55.629629629629626) internal successors, (1502), 27 states have internal predecessors, (1502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:51:50,561 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:51:50,561 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 218 [2023-08-25 21:51:50,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:51:51,247 INFO L124 PetriNetUnfolderBase]: 16/49 cut-off events. [2023-08-25 21:51:51,247 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2023-08-25 21:51:51,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 49 events. 16/49 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 67 event pairs, 1 based on Foata normal form. 3/52 useless extension candidates. Maximal degree in co-relation 188. Up to 17 conditions per place. [2023-08-25 21:51:51,252 INFO L140 encePairwiseOnDemand]: 213/218 looper letters, 17 selfloop transitions, 14 changer transitions 4/35 dead transitions. [2023-08-25 21:51:51,252 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 35 transitions, 251 flow [2023-08-25 21:51:51,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 21:51:51,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 21:51:51,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 685 transitions. [2023-08-25 21:51:51,264 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.26185015290519875 [2023-08-25 21:51:51,264 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 685 transitions. [2023-08-25 21:51:51,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 685 transitions. [2023-08-25 21:51:51,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:51:51,265 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 685 transitions. [2023-08-25 21:51:51,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 57.083333333333336) internal successors, (685), 12 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:51:51,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 218.0) internal successors, (2834), 13 states have internal predecessors, (2834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:51:51,269 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 218.0) internal successors, (2834), 13 states have internal predecessors, (2834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:51:51,269 INFO L175 Difference]: Start difference. First operand has 34 places, 19 transitions, 104 flow. Second operand 12 states and 685 transitions. [2023-08-25 21:51:51,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 35 transitions, 251 flow [2023-08-25 21:51:51,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 35 transitions, 215 flow, removed 13 selfloop flow, removed 5 redundant places. [2023-08-25 21:51:51,270 INFO L231 Difference]: Finished difference. Result has 40 places, 25 transitions, 145 flow [2023-08-25 21:51:51,271 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=145, PETRI_PLACES=40, PETRI_TRANSITIONS=25} [2023-08-25 21:51:51,271 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 14 predicate places. [2023-08-25 21:51:51,271 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 25 transitions, 145 flow [2023-08-25 21:51:51,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 55.629629629629626) internal successors, (1502), 27 states have internal predecessors, (1502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:51:51,272 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:51:51,272 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:51:51,304 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-25 21:51:51,489 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 [2023-08-25 21:51:51,489 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-25 21:51:51,490 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:51:51,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1831836735, now seen corresponding path program 3 times [2023-08-25 21:51:51,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:51:51,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199191614] [2023-08-25 21:51:51,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:51:51,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:51:51,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:51:51,990 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:51:51,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:51:51,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199191614] [2023-08-25 21:51:51,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199191614] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 21:51:51,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674705781] [2023-08-25 21:51:51,991 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 21:51:51,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 21:51:51,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 21:51:51,992 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 21:51:52,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-25 21:51:52,132 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-08-25 21:51:52,133 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 21:51:52,134 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 49 conjunts are in the unsatisfiable core [2023-08-25 21:51:52,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 21:51:52,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 21:51:52,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 21:51:52,200 INFO L322 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2023-08-25 21:51:52,201 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 39 treesize of output 61 [2023-08-25 21:51:52,213 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 21:51:52,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 21:51:52,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 21:51:52,343 INFO L322 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2023-08-25 21:51:52,343 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 28 [2023-08-25 21:51:52,407 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 21:51:52,486 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 21:51:52,526 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 21:51:52,568 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 21:51:52,599 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 21:51:52,641 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 21:51:52,670 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:51:52,670 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 21:51:52,725 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_272 (Array Int Int))) (< 0 (select (select (store |c_#memory_int| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.base| v_ArrVal_272) |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src#1.base|) (+ |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset14#1| 2 |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src#1.offset|)))) is different from false [2023-08-25 21:51:52,792 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_272 (Array Int Int))) (< 0 (select (select (store |c_#memory_int| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.base| v_ArrVal_272) |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src#1.base|) (+ |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset14#1| 5 |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src#1.offset|)))) is different from false [2023-08-25 21:51:52,900 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 9 not checked. [2023-08-25 21:51:52,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674705781] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 21:51:52,900 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 21:51:52,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 29 [2023-08-25 21:51:52,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306980265] [2023-08-25 21:51:52,901 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 21:51:52,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-08-25 21:51:52,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:51:52,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-08-25 21:51:52,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=670, Unknown=15, NotChecked=106, Total=870 [2023-08-25 21:51:52,903 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 218 [2023-08-25 21:51:52,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 25 transitions, 145 flow. Second operand has 30 states, 30 states have (on average 54.56666666666667) internal successors, (1637), 30 states have internal predecessors, (1637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:51:52,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:51:52,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 218 [2023-08-25 21:51:52,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:51:53,690 INFO L124 PetriNetUnfolderBase]: 14/46 cut-off events. [2023-08-25 21:51:53,690 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2023-08-25 21:51:53,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 46 events. 14/46 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 1 based on Foata normal form. 3/49 useless extension candidates. Maximal degree in co-relation 178. Up to 13 conditions per place. [2023-08-25 21:51:53,690 INFO L140 encePairwiseOnDemand]: 213/218 looper letters, 18 selfloop transitions, 14 changer transitions 0/32 dead transitions. [2023-08-25 21:51:53,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 32 transitions, 231 flow [2023-08-25 21:51:53,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 21:51:53,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 21:51:53,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 614 transitions. [2023-08-25 21:51:53,693 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.25604670558799 [2023-08-25 21:51:53,693 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 614 transitions. [2023-08-25 21:51:53,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 614 transitions. [2023-08-25 21:51:53,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:51:53,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 614 transitions. [2023-08-25 21:51:53,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 55.81818181818182) internal successors, (614), 11 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:51:53,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 218.0) internal successors, (2616), 12 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:51:53,697 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 218.0) internal successors, (2616), 12 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:51:53,697 INFO L175 Difference]: Start difference. First operand has 40 places, 25 transitions, 145 flow. Second operand 11 states and 614 transitions. [2023-08-25 21:51:53,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 32 transitions, 231 flow [2023-08-25 21:51:53,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 32 transitions, 164 flow, removed 17 selfloop flow, removed 12 redundant places. [2023-08-25 21:51:53,698 INFO L231 Difference]: Finished difference. Result has 39 places, 25 transitions, 108 flow [2023-08-25 21:51:53,699 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=108, PETRI_PLACES=39, PETRI_TRANSITIONS=25} [2023-08-25 21:51:53,699 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 13 predicate places. [2023-08-25 21:51:53,699 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 25 transitions, 108 flow [2023-08-25 21:51:53,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 54.56666666666667) internal successors, (1637), 30 states have internal predecessors, (1637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:51:53,700 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:51:53,700 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:51:53,705 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-08-25 21:51:53,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 21:51:53,905 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-25 21:51:53,905 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:51:53,905 INFO L85 PathProgramCache]: Analyzing trace with hash 951564618, now seen corresponding path program 4 times [2023-08-25 21:51:53,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:51:53,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46559864] [2023-08-25 21:51:53,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:51:53,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:51:53,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:51:54,320 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:51:54,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:51:54,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46559864] [2023-08-25 21:51:54,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46559864] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 21:51:54,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314430220] [2023-08-25 21:51:54,321 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-25 21:51:54,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 21:51:54,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 21:51:54,322 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 21:51:54,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-25 21:51:54,496 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-25 21:51:54,496 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 21:51:54,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 55 conjunts are in the unsatisfiable core [2023-08-25 21:51:54,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 21:51:54,517 INFO L322 Elim1Store]: treesize reduction 13, result has 48.0 percent of original size [2023-08-25 21:51:54,517 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 34 [2023-08-25 21:51:54,521 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 21:51:54,572 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 21:51:54,643 INFO L322 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-08-25 21:51:54,643 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2023-08-25 21:51:54,680 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-25 21:51:54,680 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-08-25 21:51:54,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 21:51:54,719 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-25 21:51:54,719 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-08-25 21:51:54,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 21:51:54,762 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-25 21:51:54,763 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-08-25 21:51:54,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 21:51:54,806 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-25 21:51:54,806 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-08-25 21:51:54,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 21:51:54,865 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-25 21:51:54,865 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-08-25 21:51:54,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 21:51:54,904 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-25 21:51:54,904 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-08-25 21:51:54,930 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:51:54,931 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 21:53:56,807 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 6 refuted. 10 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:53:56,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [314430220] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 21:53:56,807 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 21:53:56,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 10] total 32 [2023-08-25 21:53:56,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343233755] [2023-08-25 21:53:56,807 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 21:53:56,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-08-25 21:53:56,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:53:56,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-08-25 21:53:56,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=846, Unknown=49, NotChecked=0, Total=1056 [2023-08-25 21:53:56,810 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 218 [2023-08-25 21:53:56,812 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 25 transitions, 108 flow. Second operand has 33 states, 33 states have (on average 55.57575757575758) internal successors, (1834), 33 states have internal predecessors, (1834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:53:56,812 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:53:56,812 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 218 [2023-08-25 21:53:56,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:53:57,505 INFO L124 PetriNetUnfolderBase]: 12/43 cut-off events. [2023-08-25 21:53:57,505 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-25 21:53:57,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 43 events. 12/43 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 44 event pairs, 1 based on Foata normal form. 1/42 useless extension candidates. Maximal degree in co-relation 138. Up to 13 conditions per place. [2023-08-25 21:53:57,506 INFO L140 encePairwiseOnDemand]: 213/218 looper letters, 0 selfloop transitions, 0 changer transitions 30/30 dead transitions. [2023-08-25 21:53:57,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 30 transitions, 187 flow [2023-08-25 21:53:57,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 21:53:57,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 21:53:57,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 623 transitions. [2023-08-25 21:53:57,508 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2597998331943286 [2023-08-25 21:53:57,508 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 623 transitions. [2023-08-25 21:53:57,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 623 transitions. [2023-08-25 21:53:57,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:53:57,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 623 transitions. [2023-08-25 21:53:57,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 56.63636363636363) internal successors, (623), 11 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:53:57,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 218.0) internal successors, (2616), 12 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:53:57,511 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 218.0) internal successors, (2616), 12 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:53:57,511 INFO L175 Difference]: Start difference. First operand has 39 places, 25 transitions, 108 flow. Second operand 11 states and 623 transitions. [2023-08-25 21:53:57,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 30 transitions, 187 flow [2023-08-25 21:53:57,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 30 transitions, 160 flow, removed 2 selfloop flow, removed 9 redundant places. [2023-08-25 21:53:57,512 INFO L231 Difference]: Finished difference. Result has 39 places, 0 transitions, 0 flow [2023-08-25 21:53:57,512 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=39, PETRI_TRANSITIONS=0} [2023-08-25 21:53:57,513 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 13 predicate places. [2023-08-25 21:53:57,513 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 0 transitions, 0 flow [2023-08-25 21:53:57,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 55.57575757575758) internal successors, (1834), 33 states have internal predecessors, (1834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:53:57,515 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (12 of 13 remaining) [2023-08-25 21:53:57,516 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2023-08-25 21:53:57,516 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (10 of 13 remaining) [2023-08-25 21:53:57,516 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2023-08-25 21:53:57,516 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2023-08-25 21:53:57,516 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 13 remaining) [2023-08-25 21:53:57,516 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 13 remaining) [2023-08-25 21:53:57,516 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONASSERT (5 of 13 remaining) [2023-08-25 21:53:57,516 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2023-08-25 21:53:57,516 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 13 remaining) [2023-08-25 21:53:57,516 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2023-08-25 21:53:57,516 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2023-08-25 21:53:57,517 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2023-08-25 21:53:57,522 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-25 21:53:57,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 21:53:57,722 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1] [2023-08-25 21:53:57,725 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 21:53:57,726 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 21:53:57,727 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 09:53:57 BasicIcfg [2023-08-25 21:53:57,728 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 21:53:57,728 INFO L158 Benchmark]: Toolchain (without parser) took 134075.93ms. Allocated memory was 335.5MB in the beginning and 522.2MB in the end (delta: 186.6MB). Free memory was 308.6MB in the beginning and 260.0MB in the end (delta: 48.6MB). Peak memory consumption was 237.8MB. Max. memory is 16.0GB. [2023-08-25 21:53:57,728 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 335.5MB. Free memory was 312.2MB in the beginning and 312.2MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 21:53:57,728 INFO L158 Benchmark]: CACSL2BoogieTranslator took 487.82ms. Allocated memory is still 335.5MB. Free memory was 308.6MB in the beginning and 275.4MB in the end (delta: 33.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.0GB. [2023-08-25 21:53:57,728 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.03ms. Allocated memory is still 335.5MB. Free memory was 275.4MB in the beginning and 273.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 21:53:57,729 INFO L158 Benchmark]: Boogie Preprocessor took 21.14ms. Allocated memory is still 335.5MB. Free memory was 273.3MB in the beginning and 271.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 21:53:57,729 INFO L158 Benchmark]: RCFGBuilder took 358.47ms. Allocated memory is still 335.5MB. Free memory was 271.2MB in the beginning and 255.3MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-25 21:53:57,729 INFO L158 Benchmark]: TraceAbstraction took 133156.36ms. Allocated memory was 335.5MB in the beginning and 522.2MB in the end (delta: 186.6MB). Free memory was 254.5MB in the beginning and 260.0MB in the end (delta: -5.5MB). Peak memory consumption was 183.3MB. Max. memory is 16.0GB. [2023-08-25 21:53:57,730 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 335.5MB. Free memory was 312.2MB in the beginning and 312.2MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 487.82ms. Allocated memory is still 335.5MB. Free memory was 308.6MB in the beginning and 275.4MB in the end (delta: 33.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 43.03ms. Allocated memory is still 335.5MB. Free memory was 275.4MB in the beginning and 273.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 21.14ms. Allocated memory is still 335.5MB. Free memory was 273.3MB in the beginning and 271.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 358.47ms. Allocated memory is still 335.5MB. Free memory was 271.2MB in the beginning and 255.3MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 133156.36ms. Allocated memory was 335.5MB in the beginning and 522.2MB in the end (delta: 186.6MB). Free memory was 254.5MB in the beginning and 260.0MB in the end (delta: -5.5MB). Peak memory consumption was 183.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 274]: Unsoundness Warning unspecified type, defaulting to int C: short [274] - GenericResultAtLocation [Line: 274]: Unsoundness Warning unspecified type, defaulting to int C: short [274] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.7s, 104 PlacesBefore, 26 PlacesAfterwards, 100 TransitionsBefore, 21 TransitionsAfterwards, 630 CoEnabledTransitionPairs, 5 FixpointIterations, 43 TrivialSequentialCompositions, 50 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 103 TotalNumberOfCompositions, 635 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 606, independent: 598, independent conditional: 0, independent unconditional: 598, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 368, independent: 363, independent conditional: 0, independent unconditional: 363, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 606, independent: 235, independent conditional: 0, independent unconditional: 235, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 368, unknown conditional: 0, unknown unconditional: 368] , Statistics on independence cache: Total cache size (in pairs): 6, Positive cache size: 5, Positive conditional cache size: 0, Positive unconditional cache size: 5, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1111]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1116]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1116]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1123]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1125]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1126]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1126]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 20]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 147 locations, 13 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: 133.0s, OverallIterations: 7, TraceHistogramMax: 6, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.8s, HoareTripleCheckerStatistics: 51 mSolverCounterUnknown, 199 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 199 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 160 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 119 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1143 IncrementalHoareTripleChecker+Invalid, 1473 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 119 mSolverCounterUnsat, 0 mSDtfsCounter, 1143 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 212 GetRequests, 68 SyntacticMatches, 6 SemanticMatches, 138 ConstructedPredicates, 5 IntricatePredicates, 1 DeprecatedPredicates, 571 ImplicationChecksByTransitivity, 124.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=145occurred in iteration=5, InterpolantAutomatonStates: 52, 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, 0.4s SatisfiabilityAnalysisTime, 125.8s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 203 ConstructedInterpolants, 41 QuantifiedInterpolants, 3478 SizeOfPredicates, 34 NumberOfNonLiveVariables, 952 ConjunctsInSsa, 186 ConjunctsInUnsatCore, 15 InterpolantComputations, 3 PerfectInterpolantSequences, 15/141 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 21:53:57,797 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...