/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/pthread/bigshot_s.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 07:45:19,488 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 07:45:19,534 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 07:45:19,538 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 07:45:19,538 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 07:45:19,569 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 07:45:19,570 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 07:45:19,571 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 07:45:19,571 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 07:45:19,575 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 07:45:19,575 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 07:45:19,575 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 07:45:19,576 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 07:45:19,577 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 07:45:19,577 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 07:45:19,578 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 07:45:19,578 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 07:45:19,578 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 07:45:19,578 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 07:45:19,579 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 07:45:19,579 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 07:45:19,580 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 07:45:19,580 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 07:45:19,580 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 07:45:19,581 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 07:45:19,581 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 07:45:19,581 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 07:45:19,581 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 07:45:19,581 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 07:45:19,582 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 07:45:19,583 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 07:45:19,583 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 07:45:19,583 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 07:45:19,583 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 07:45:19,583 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 07:45:19,584 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 07:45:19,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 07:45:19,933 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 07:45:19,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 07:45:19,937 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 07:45:19,937 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 07:45:19,938 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/bigshot_s.i [2023-08-25 07:45:21,167 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 07:45:21,418 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 07:45:21,419 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/bigshot_s.i [2023-08-25 07:45:21,438 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01509e53f/f15269361b874d9c9c8d1dc0e542cfda/FLAG8dca157f7 [2023-08-25 07:45:21,454 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01509e53f/f15269361b874d9c9c8d1dc0e542cfda [2023-08-25 07:45:21,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 07:45:21,458 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 07:45:21,458 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 07:45:21,459 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 07:45:21,460 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 07:45:21,461 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:45:21" (1/1) ... [2023-08-25 07:45:21,462 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d1ca17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:45:21, skipping insertion in model container [2023-08-25 07:45:21,462 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:45:21" (1/1) ... [2023-08-25 07:45:21,506 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 07:45:21,989 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 07:45:22,003 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 07:45:22,025 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [274] [2023-08-25 07:45:22,026 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [274] [2023-08-25 07:45:22,058 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 07:45:22,139 INFO L206 MainTranslator]: Completed translation [2023-08-25 07:45:22,140 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:45:22 WrapperNode [2023-08-25 07:45:22,141 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 07:45:22,142 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 07:45:22,143 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 07:45:22,143 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 07:45:22,148 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:45:22" (1/1) ... [2023-08-25 07:45:22,178 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:45:22" (1/1) ... [2023-08-25 07:45:22,198 INFO L138 Inliner]: procedures = 323, calls = 34, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 98 [2023-08-25 07:45:22,198 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 07:45:22,199 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 07:45:22,199 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 07:45:22,199 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 07:45:22,207 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:45:22" (1/1) ... [2023-08-25 07:45:22,208 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:45:22" (1/1) ... [2023-08-25 07:45:22,220 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:45:22" (1/1) ... [2023-08-25 07:45:22,221 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:45:22" (1/1) ... [2023-08-25 07:45:22,232 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:45:22" (1/1) ... [2023-08-25 07:45:22,242 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:45:22" (1/1) ... [2023-08-25 07:45:22,244 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:45:22" (1/1) ... [2023-08-25 07:45:22,245 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:45:22" (1/1) ... [2023-08-25 07:45:22,247 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 07:45:22,248 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 07:45:22,248 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 07:45:22,248 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 07:45:22,248 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:45:22" (1/1) ... [2023-08-25 07:45:22,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 07:45:22,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 07:45:22,285 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 07:45:22,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 07:45:22,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 07:45:22,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 07:45:22,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-08-25 07:45:22,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 07:45:22,321 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 07:45:22,321 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 07:45:22,322 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 07:45:22,322 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 07:45:22,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 07:45:22,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-25 07:45:22,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 07:45:22,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 07:45:22,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 07:45:22,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 07:45:22,324 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 07:45:22,477 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 07:45:22,478 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 07:45:22,669 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 07:45:22,676 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 07:45:22,676 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-25 07:45:22,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:45:22 BoogieIcfgContainer [2023-08-25 07:45:22,678 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 07:45:22,680 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 07:45:22,680 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 07:45:22,682 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 07:45:22,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 07:45:21" (1/3) ... [2023-08-25 07:45:22,683 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f55fefa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:45:22, skipping insertion in model container [2023-08-25 07:45:22,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:45:22" (2/3) ... [2023-08-25 07:45:22,684 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f55fefa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:45:22, skipping insertion in model container [2023-08-25 07:45:22,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:45:22" (3/3) ... [2023-08-25 07:45:22,685 INFO L112 eAbstractionObserver]: Analyzing ICFG bigshot_s.i [2023-08-25 07:45:22,698 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 07:45:22,698 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-08-25 07:45:22,698 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 07:45:22,776 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-25 07:45:22,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 123 transitions, 262 flow [2023-08-25 07:45:22,876 INFO L124 PetriNetUnfolderBase]: 6/121 cut-off events. [2023-08-25 07:45:22,876 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 07:45:22,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 121 events. 6/121 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 114 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 78. Up to 2 conditions per place. [2023-08-25 07:45:22,883 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 123 transitions, 262 flow [2023-08-25 07:45:22,888 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 110 places, 107 transitions, 226 flow [2023-08-25 07:45:22,891 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 07:45:22,901 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 110 places, 107 transitions, 226 flow [2023-08-25 07:45:22,907 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 110 places, 107 transitions, 226 flow [2023-08-25 07:45:22,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 107 transitions, 226 flow [2023-08-25 07:45:22,946 INFO L124 PetriNetUnfolderBase]: 4/107 cut-off events. [2023-08-25 07:45:22,946 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 07:45:22,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 107 events. 4/107 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. 0/95 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2023-08-25 07:45:22,948 INFO L119 LiptonReduction]: Number of co-enabled transitions 630 [2023-08-25 07:45:26,622 INFO L134 LiptonReduction]: Checked pairs total: 647 [2023-08-25 07:45:26,622 INFO L136 LiptonReduction]: Total number of compositions: 117 [2023-08-25 07:45:26,634 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 07:45:26,639 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;@72fe6371, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 07:45:26,639 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2023-08-25 07:45:26,641 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 07:45:26,641 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-25 07:45:26,641 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 07:45:26,641 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:45:26,642 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 07:45:26,642 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-25 07:45:26,646 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:45:26,646 INFO L85 PathProgramCache]: Analyzing trace with hash 449123, now seen corresponding path program 1 times [2023-08-25 07:45:26,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:45:26,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013255840] [2023-08-25 07:45:26,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:45:26,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:45:26,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:45:26,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:45:26,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:45:26,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013255840] [2023-08-25 07:45:26,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013255840] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:45:26,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:45:26,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 07:45:26,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149387738] [2023-08-25 07:45:26,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:45:26,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 07:45:26,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:45:26,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 07:45:26,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 07:45:26,866 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 240 [2023-08-25 07:45:26,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 22 transitions, 56 flow. Second operand has 2 states, 2 states have (on average 116.5) internal successors, (233), 2 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:26,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:45:26,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 240 [2023-08-25 07:45:26,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:45:26,908 INFO L124 PetriNetUnfolderBase]: 7/22 cut-off events. [2023-08-25 07:45:26,909 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 07:45:26,910 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 07:45:26,911 INFO L140 encePairwiseOnDemand]: 232/240 looper letters, 14 selfloop transitions, 0 changer transitions 0/14 dead transitions. [2023-08-25 07:45:26,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 14 transitions, 68 flow [2023-08-25 07:45:26,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 07:45:26,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 07:45:26,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 252 transitions. [2023-08-25 07:45:26,927 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.525 [2023-08-25 07:45:26,928 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 252 transitions. [2023-08-25 07:45:26,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 252 transitions. [2023-08-25 07:45:26,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:45:26,932 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 252 transitions. [2023-08-25 07:45:26,936 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 126.0) internal successors, (252), 2 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:26,941 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 240.0) internal successors, (720), 3 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:26,942 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 240.0) internal successors, (720), 3 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:26,943 INFO L175 Difference]: Start difference. First operand has 27 places, 22 transitions, 56 flow. Second operand 2 states and 252 transitions. [2023-08-25 07:45:26,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 14 transitions, 68 flow [2023-08-25 07:45:26,945 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 07:45:26,946 INFO L231 Difference]: Finished difference. Result has 16 places, 14 transitions, 32 flow [2023-08-25 07:45:26,947 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, 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 07:45:26,950 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -11 predicate places. [2023-08-25 07:45:26,950 INFO L495 AbstractCegarLoop]: Abstraction has has 16 places, 14 transitions, 32 flow [2023-08-25 07:45:26,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 116.5) internal successors, (233), 2 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:26,951 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:45:26,951 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:45:26,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 07:45:26,951 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-25 07:45:26,959 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:45:26,960 INFO L85 PathProgramCache]: Analyzing trace with hash 560929793, now seen corresponding path program 1 times [2023-08-25 07:45:26,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:45:26,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992930958] [2023-08-25 07:45:26,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:45:26,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:45:27,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:45:27,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:45:27,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:45:27,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992930958] [2023-08-25 07:45:27,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992930958] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:45:27,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:45:27,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 07:45:27,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265891428] [2023-08-25 07:45:27,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:45:27,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 07:45:27,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:45:27,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 07:45:27,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 07:45:27,116 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 240 [2023-08-25 07:45:27,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 14 transitions, 32 flow. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:27,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:45:27,116 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 240 [2023-08-25 07:45:27,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:45:27,141 INFO L124 PetriNetUnfolderBase]: 5/20 cut-off events. [2023-08-25 07:45:27,141 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 07:45:27,142 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 07:45:27,142 INFO L140 encePairwiseOnDemand]: 238/240 looper letters, 13 selfloop transitions, 1 changer transitions 0/14 dead transitions. [2023-08-25 07:45:27,142 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 14 transitions, 60 flow [2023-08-25 07:45:27,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 07:45:27,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 07:45:27,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 330 transitions. [2023-08-25 07:45:27,144 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4583333333333333 [2023-08-25 07:45:27,144 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 330 transitions. [2023-08-25 07:45:27,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 330 transitions. [2023-08-25 07:45:27,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:45:27,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 330 transitions. [2023-08-25 07:45:27,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:27,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 240.0) internal successors, (960), 4 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:27,148 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 240.0) internal successors, (960), 4 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:27,148 INFO L175 Difference]: Start difference. First operand has 16 places, 14 transitions, 32 flow. Second operand 3 states and 330 transitions. [2023-08-25 07:45:27,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 14 transitions, 60 flow [2023-08-25 07:45:27,148 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 07:45:27,149 INFO L231 Difference]: Finished difference. Result has 18 places, 13 transitions, 32 flow [2023-08-25 07:45:27,149 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, 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 07:45:27,150 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -9 predicate places. [2023-08-25 07:45:27,150 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 13 transitions, 32 flow [2023-08-25 07:45:27,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:27,150 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:45:27,150 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:45:27,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 07:45:27,151 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-25 07:45:27,151 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:45:27,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1282678527, now seen corresponding path program 1 times [2023-08-25 07:45:27,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:45:27,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363490599] [2023-08-25 07:45:27,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:45:27,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:45:27,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:45:27,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:45:27,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:45:27,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363490599] [2023-08-25 07:45:27,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363490599] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:45:27,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:45:27,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 07:45:27,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062585701] [2023-08-25 07:45:27,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:45:27,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-25 07:45:27,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:45:27,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-25 07:45:27,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-08-25 07:45:27,645 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 240 [2023-08-25 07:45:27,645 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 13 transitions, 32 flow. Second operand has 8 states, 8 states have (on average 67.5) internal successors, (540), 8 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:27,646 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:45:27,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 240 [2023-08-25 07:45:27,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:45:27,756 INFO L124 PetriNetUnfolderBase]: 9/28 cut-off events. [2023-08-25 07:45:27,757 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 07:45:27,757 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, 1 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 07:45:27,757 INFO L140 encePairwiseOnDemand]: 236/240 looper letters, 14 selfloop transitions, 5 changer transitions 0/19 dead transitions. [2023-08-25 07:45:27,757 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 19 transitions, 82 flow [2023-08-25 07:45:27,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 07:45:27,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 07:45:27,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 350 transitions. [2023-08-25 07:45:27,759 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2916666666666667 [2023-08-25 07:45:27,759 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 350 transitions. [2023-08-25 07:45:27,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 350 transitions. [2023-08-25 07:45:27,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:45:27,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 350 transitions. [2023-08-25 07:45:27,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 70.0) internal successors, (350), 5 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:27,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 240.0) internal successors, (1440), 6 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:27,764 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 240.0) internal successors, (1440), 6 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:27,764 INFO L175 Difference]: Start difference. First operand has 18 places, 13 transitions, 32 flow. Second operand 5 states and 350 transitions. [2023-08-25 07:45:27,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 19 transitions, 82 flow [2023-08-25 07:45:27,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 19 transitions, 81 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 07:45:27,765 INFO L231 Difference]: Finished difference. Result has 23 places, 16 transitions, 58 flow [2023-08-25 07:45:27,765 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, 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=5, PETRI_FLOW=58, PETRI_PLACES=23, PETRI_TRANSITIONS=16} [2023-08-25 07:45:27,766 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -4 predicate places. [2023-08-25 07:45:27,766 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 16 transitions, 58 flow [2023-08-25 07:45:27,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 67.5) internal successors, (540), 8 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:27,767 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:45:27,767 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:45:27,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 07:45:27,768 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-25 07:45:27,768 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:45:27,768 INFO L85 PathProgramCache]: Analyzing trace with hash -2093487210, now seen corresponding path program 1 times [2023-08-25 07:45:27,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:45:27,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604365752] [2023-08-25 07:45:27,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:45:27,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:45:27,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:45:28,268 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 07:45:28,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:45:28,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604365752] [2023-08-25 07:45:28,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604365752] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 07:45:28,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1325553740] [2023-08-25 07:45:28,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:45:28,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 07:45:28,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 07:45:28,273 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 07:45:28,297 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 07:45:28,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:45:28,398 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 39 conjunts are in the unsatisfiable core [2023-08-25 07:45:28,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 07:45:28,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 07:45:28,482 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 07:45:28,498 INFO L322 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2023-08-25 07:45:28,499 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 07:45:28,557 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 07:45:28,641 INFO L322 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-08-25 07:45:28,641 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 07:45:28,686 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-25 07:45:28,686 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 07:45:28,722 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 07:45:28,722 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 07:45:28,871 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 07:45:28,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1325553740] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 07:45:28,871 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 07:45:28,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 5] total 17 [2023-08-25 07:45:28,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41797334] [2023-08-25 07:45:28,872 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 07:45:28,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-08-25 07:45:28,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:45:28,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-08-25 07:45:28,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2023-08-25 07:45:28,875 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 240 [2023-08-25 07:45:28,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 16 transitions, 58 flow. Second operand has 18 states, 18 states have (on average 63.05555555555556) internal successors, (1135), 18 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:28,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:45:28,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 240 [2023-08-25 07:45:28,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:45:29,270 INFO L124 PetriNetUnfolderBase]: 14/45 cut-off events. [2023-08-25 07:45:29,270 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-08-25 07:45:29,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 45 events. 14/45 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 68 event pairs, 1 based on Foata normal form. 2/47 useless extension candidates. Maximal degree in co-relation 129. Up to 14 conditions per place. [2023-08-25 07:45:29,271 INFO L140 encePairwiseOnDemand]: 235/240 looper letters, 17 selfloop transitions, 8 changer transitions 5/30 dead transitions. [2023-08-25 07:45:29,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 30 transitions, 163 flow [2023-08-25 07:45:29,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 07:45:29,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 07:45:29,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 582 transitions. [2023-08-25 07:45:29,274 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.26944444444444443 [2023-08-25 07:45:29,274 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 582 transitions. [2023-08-25 07:45:29,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 582 transitions. [2023-08-25 07:45:29,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:45:29,275 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 582 transitions. [2023-08-25 07:45:29,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 64.66666666666667) internal successors, (582), 9 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:29,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 240.0) internal successors, (2400), 10 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:29,280 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 240.0) internal successors, (2400), 10 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:29,281 INFO L175 Difference]: Start difference. First operand has 23 places, 16 transitions, 58 flow. Second operand 9 states and 582 transitions. [2023-08-25 07:45:29,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 30 transitions, 163 flow [2023-08-25 07:45:29,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 30 transitions, 157 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-25 07:45:29,282 INFO L231 Difference]: Finished difference. Result has 34 places, 19 transitions, 98 flow [2023-08-25 07:45:29,282 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=47, 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=98, PETRI_PLACES=34, PETRI_TRANSITIONS=19} [2023-08-25 07:45:29,283 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 7 predicate places. [2023-08-25 07:45:29,283 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 19 transitions, 98 flow [2023-08-25 07:45:29,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 63.05555555555556) internal successors, (1135), 18 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:29,284 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:45:29,284 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:45:29,293 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-25 07:45:29,490 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 07:45:29,491 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-25 07:45:29,491 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:45:29,492 INFO L85 PathProgramCache]: Analyzing trace with hash -790961669, now seen corresponding path program 2 times [2023-08-25 07:45:29,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:45:29,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50982005] [2023-08-25 07:45:29,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:45:29,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:45:29,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:45:30,021 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 07:45:30,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:45:30,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50982005] [2023-08-25 07:45:30,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50982005] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 07:45:30,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036089862] [2023-08-25 07:45:30,022 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 07:45:30,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 07:45:30,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 07:45:30,023 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 07:45:30,069 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 07:45:30,175 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 07:45:30,175 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 07:45:30,177 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 45 conjunts are in the unsatisfiable core [2023-08-25 07:45:30,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 07:45:30,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 07:45:30,190 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 07:45:30,205 INFO L322 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2023-08-25 07:45:30,206 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 07:45:30,255 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 07:45:30,329 INFO L322 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-08-25 07:45:30,330 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 07:45:30,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 07:45:30,372 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-25 07:45:30,372 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 07:45:30,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 07:45:30,425 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-25 07:45:30,425 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 07:45:30,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 07:45:30,471 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-25 07:45:30,471 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 07:45:30,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 07:45:30,518 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-25 07:45:30,519 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 07:45:30,546 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:45:30,546 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 07:45:41,454 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_189 Int) (v_ArrVal_196 Int) (v_ArrVal_193 Int) (v_ArrVal_191 Int) (|v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset15#1_46| Int) (|v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset15#1_45| Int) (|v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset15#1_47| Int)) (or (= 66 (select (select (store |c_#memory_int| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.base| (store (store (store (store (select |c_#memory_int| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.base|) (+ |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.offset| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset15#1|) v_ArrVal_189) (+ |v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset15#1_47| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.offset|) v_ArrVal_191) (+ |v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset15#1_46| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.offset|) v_ArrVal_193) (+ |v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset15#1_45| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.offset|) v_ArrVal_196)) c_~v~0.base) c_~v~0.offset)) (< |v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset15#1_45| (+ |v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset15#1_46| 1)) (< |v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset15#1_46| (+ |v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset15#1_47| 1)) (< |v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset15#1_47| (+ |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset15#1| 1)))) is different from false [2023-08-25 07:45:51,142 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 3 refuted. 1 times theorem prover too weak. 0 trivial. 4 not checked. [2023-08-25 07:45:51,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2036089862] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 07:45:51,143 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 07:45:51,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 8] total 26 [2023-08-25 07:45:51,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222192512] [2023-08-25 07:45:51,144 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 07:45:51,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-08-25 07:45:51,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:45:51,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-08-25 07:45:51,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=539, Unknown=7, NotChecked=48, Total=702 [2023-08-25 07:45:51,147 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 240 [2023-08-25 07:45:51,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 19 transitions, 98 flow. Second operand has 27 states, 27 states have (on average 62.7037037037037) internal successors, (1693), 27 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:51,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:45:51,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 240 [2023-08-25 07:45:51,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:46:28,735 WARN L234 SmtUtils]: Spent 21.92s on a formula simplification. DAG size of input: 73 DAG size of output: 70 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-25 07:46:35,900 INFO L124 PetriNetUnfolderBase]: 11/41 cut-off events. [2023-08-25 07:46:35,900 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2023-08-25 07:46:35,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 41 events. 11/41 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 51 event pairs, 1 based on Foata normal form. 4/45 useless extension candidates. Maximal degree in co-relation 145. Up to 14 conditions per place. [2023-08-25 07:46:35,901 INFO L140 encePairwiseOnDemand]: 234/240 looper letters, 0 selfloop transitions, 0 changer transitions 28/28 dead transitions. [2023-08-25 07:46:35,901 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 28 transitions, 185 flow [2023-08-25 07:46:35,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 07:46:35,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 07:46:35,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 763 transitions. [2023-08-25 07:46:35,904 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.26493055555555556 [2023-08-25 07:46:35,904 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 763 transitions. [2023-08-25 07:46:35,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 763 transitions. [2023-08-25 07:46:35,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:46:35,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 763 transitions. [2023-08-25 07:46:35,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 63.583333333333336) internal successors, (763), 12 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:46:35,912 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 240.0) internal successors, (3120), 13 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:46:35,913 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 240.0) internal successors, (3120), 13 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:46:35,913 INFO L175 Difference]: Start difference. First operand has 34 places, 19 transitions, 98 flow. Second operand 12 states and 763 transitions. [2023-08-25 07:46:35,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 28 transitions, 185 flow [2023-08-25 07:46:35,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 28 transitions, 152 flow, removed 10 selfloop flow, removed 5 redundant places. [2023-08-25 07:46:35,915 INFO L231 Difference]: Finished difference. Result has 38 places, 0 transitions, 0 flow [2023-08-25 07:46:35,915 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=0, PETRI_PLACES=38, PETRI_TRANSITIONS=0} [2023-08-25 07:46:35,915 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 11 predicate places. [2023-08-25 07:46:35,915 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 0 transitions, 0 flow [2023-08-25 07:46:35,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 62.7037037037037) internal successors, (1693), 27 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:46:35,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (13 of 14 remaining) [2023-08-25 07:46:35,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2023-08-25 07:46:35,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2023-08-25 07:46:35,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2023-08-25 07:46:35,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2023-08-25 07:46:35,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 14 remaining) [2023-08-25 07:46:35,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2023-08-25 07:46:35,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2023-08-25 07:46:35,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONASSERT (5 of 14 remaining) [2023-08-25 07:46:35,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 14 remaining) [2023-08-25 07:46:35,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 14 remaining) [2023-08-25 07:46:35,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2023-08-25 07:46:35,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2023-08-25 07:46:35,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2023-08-25 07:46:35,936 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 07:46:36,133 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 07:46:36,134 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2023-08-25 07:46:36,137 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 07:46:36,137 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 07:46:36,140 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 07:46:36 BasicIcfg [2023-08-25 07:46:36,140 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 07:46:36,141 INFO L158 Benchmark]: Toolchain (without parser) took 74682.51ms. Allocated memory was 381.7MB in the beginning and 524.3MB in the end (delta: 142.6MB). Free memory was 336.7MB in the beginning and 434.5MB in the end (delta: -97.8MB). Peak memory consumption was 47.7MB. Max. memory is 16.0GB. [2023-08-25 07:46:36,141 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 381.7MB. Free memory was 359.4MB in the beginning and 359.3MB in the end (delta: 91.7kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 07:46:36,142 INFO L158 Benchmark]: CACSL2BoogieTranslator took 682.44ms. Allocated memory is still 381.7MB. Free memory was 336.7MB in the beginning and 303.9MB in the end (delta: 32.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.0GB. [2023-08-25 07:46:36,142 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.96ms. Allocated memory is still 381.7MB. Free memory was 303.9MB in the beginning and 300.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 07:46:36,142 INFO L158 Benchmark]: Boogie Preprocessor took 48.17ms. Allocated memory is still 381.7MB. Free memory was 300.7MB in the beginning and 299.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 07:46:36,142 INFO L158 Benchmark]: RCFGBuilder took 430.35ms. Allocated memory is still 381.7MB. Free memory was 299.7MB in the beginning and 281.9MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-25 07:46:36,143 INFO L158 Benchmark]: TraceAbstraction took 73460.21ms. Allocated memory was 381.7MB in the beginning and 524.3MB in the end (delta: 142.6MB). Free memory was 281.9MB in the beginning and 434.5MB in the end (delta: -152.6MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 07:46:36,144 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 381.7MB. Free memory was 359.4MB in the beginning and 359.3MB in the end (delta: 91.7kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 682.44ms. Allocated memory is still 381.7MB. Free memory was 336.7MB in the beginning and 303.9MB in the end (delta: 32.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 55.96ms. Allocated memory is still 381.7MB. Free memory was 303.9MB in the beginning and 300.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 48.17ms. Allocated memory is still 381.7MB. Free memory was 300.7MB in the beginning and 299.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 430.35ms. Allocated memory is still 381.7MB. Free memory was 299.7MB in the beginning and 281.9MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 73460.21ms. Allocated memory was 381.7MB in the beginning and 524.3MB in the end (delta: 142.6MB). Free memory was 281.9MB in the beginning and 434.5MB in the end (delta: -152.6MB). There was no memory consumed. 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: 3.7s, 110 PlacesBefore, 27 PlacesAfterwards, 107 TransitionsBefore, 22 TransitionsAfterwards, 630 CoEnabledTransitionPairs, 6 FixpointIterations, 52 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 117 TotalNumberOfCompositions, 647 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 597, independent: 588, independent conditional: 0, independent unconditional: 588, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 363, independent: 358, independent conditional: 0, independent unconditional: 358, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 597, independent: 230, independent conditional: 0, independent unconditional: 230, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 363, unknown conditional: 0, unknown unconditional: 363] , Statistics on independence cache: Total cache size (in pairs): 4, Positive cache size: 3, Positive conditional cache size: 0, Positive unconditional cache size: 3, 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: 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, 154 locations, 14 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: 73.3s, OverallIterations: 5, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 45.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, HoareTripleCheckerStatistics: 14 mSolverCounterUnknown, 105 SdHoareTripleChecker+Valid, 8.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 105 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 8.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 19 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 68 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 456 IncrementalHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 68 mSolverCounterUnsat, 0 mSDtfsCounter, 456 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 1 IntricatePredicates, 3 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 57.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=4, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 23.0s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 104 ConstructedInterpolants, 10 QuantifiedInterpolants, 1637 SizeOfPredicates, 17 NumberOfNonLiveVariables, 455 ConjunctsInSsa, 84 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 8/33 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 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 07:46:36,191 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...