/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/triangular-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 07:52:52,499 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 07:52:52,581 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 07:52:52,585 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 07:52:52,586 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 07:52:52,614 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 07:52:52,615 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 07:52:52,619 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 07:52:52,620 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 07:52:52,620 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 07:52:52,621 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 07:52:52,621 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 07:52:52,621 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 07:52:52,622 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 07:52:52,622 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 07:52:52,622 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 07:52:52,623 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 07:52:52,623 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 07:52:52,623 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 07:52:52,624 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 07:52:52,624 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 07:52:52,627 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 07:52:52,627 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 07:52:52,627 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 07:52:52,630 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 07:52:52,630 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 07:52:52,631 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 07:52:52,631 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 07:52:52,631 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 07:52:52,631 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 07:52:52,632 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 07:52:52,632 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 07:52:52,633 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 07:52:52,633 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 07:52:52,633 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 07:52:52,633 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 07:52:52,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 07:52:52,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 07:52:52,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 07:52:52,968 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 07:52:52,968 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 07:52:52,969 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/triangular-2.i [2023-08-25 07:52:54,129 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 07:52:54,395 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 07:52:54,395 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/triangular-2.i [2023-08-25 07:52:54,416 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8020fbd8e/9403227f9c36473487aadb2f708ed6f3/FLAGd2ec346e2 [2023-08-25 07:52:54,427 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8020fbd8e/9403227f9c36473487aadb2f708ed6f3 [2023-08-25 07:52:54,429 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 07:52:54,430 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 07:52:54,430 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 07:52:54,431 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 07:52:54,433 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 07:52:54,433 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:52:54" (1/1) ... [2023-08-25 07:52:54,434 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cf7efcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:52:54, skipping insertion in model container [2023-08-25 07:52:54,434 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:52:54" (1/1) ... [2023-08-25 07:52:54,474 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 07:52:54,749 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 07:52:54,759 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 07:52:54,784 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [245] [2023-08-25 07:52:54,785 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [245] [2023-08-25 07:52:54,818 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 07:52:54,846 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 07:52:54,847 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 07:52:54,852 INFO L206 MainTranslator]: Completed translation [2023-08-25 07:52:54,853 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:52:54 WrapperNode [2023-08-25 07:52:54,853 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 07:52:54,854 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 07:52:54,854 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 07:52:54,854 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 07:52:54,860 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:52:54" (1/1) ... [2023-08-25 07:52:54,875 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:52:54" (1/1) ... [2023-08-25 07:52:54,894 INFO L138 Inliner]: procedures = 169, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 54 [2023-08-25 07:52:54,895 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 07:52:54,896 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 07:52:54,896 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 07:52:54,896 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 07:52:54,903 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:52:54" (1/1) ... [2023-08-25 07:52:54,904 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:52:54" (1/1) ... [2023-08-25 07:52:54,916 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:52:54" (1/1) ... [2023-08-25 07:52:54,916 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:52:54" (1/1) ... [2023-08-25 07:52:54,925 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:52:54" (1/1) ... [2023-08-25 07:52:54,927 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:52:54" (1/1) ... [2023-08-25 07:52:54,929 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:52:54" (1/1) ... [2023-08-25 07:52:54,930 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:52:54" (1/1) ... [2023-08-25 07:52:54,931 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 07:52:54,932 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 07:52:54,932 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 07:52:54,932 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 07:52:54,933 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:52:54" (1/1) ... [2023-08-25 07:52:54,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 07:52:54,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 07:52:54,956 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 07:52:54,984 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 07:52:54,992 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-08-25 07:52:54,993 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-08-25 07:52:54,993 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-08-25 07:52:54,993 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-08-25 07:52:54,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 07:52:54,993 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 07:52:54,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 07:52:54,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 07:52:54,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 07:52:54,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 07:52:54,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 07:52:54,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 07:52:54,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 07:52:54,995 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 07:52:55,129 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 07:52:55,130 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 07:52:55,310 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 07:52:55,357 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 07:52:55,357 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-25 07:52:55,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:52:55 BoogieIcfgContainer [2023-08-25 07:52:55,359 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 07:52:55,361 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 07:52:55,361 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 07:52:55,364 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 07:52:55,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 07:52:54" (1/3) ... [2023-08-25 07:52:55,364 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27be518e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:52:55, skipping insertion in model container [2023-08-25 07:52:55,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:52:54" (2/3) ... [2023-08-25 07:52:55,365 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27be518e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:52:55, skipping insertion in model container [2023-08-25 07:52:55,365 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:52:55" (3/3) ... [2023-08-25 07:52:55,370 INFO L112 eAbstractionObserver]: Analyzing ICFG triangular-2.i [2023-08-25 07:52:55,381 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 07:52:55,381 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-08-25 07:52:55,382 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 07:52:55,428 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 07:52:55,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 78 transitions, 166 flow [2023-08-25 07:52:55,501 INFO L124 PetriNetUnfolderBase]: 6/76 cut-off events. [2023-08-25 07:52:55,501 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 07:52:55,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 76 events. 6/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 119 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2023-08-25 07:52:55,506 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 78 transitions, 166 flow [2023-08-25 07:52:55,509 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 76 transitions, 158 flow [2023-08-25 07:52:55,512 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 07:52:55,524 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 76 transitions, 158 flow [2023-08-25 07:52:55,526 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 76 transitions, 158 flow [2023-08-25 07:52:55,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 76 transitions, 158 flow [2023-08-25 07:52:55,545 INFO L124 PetriNetUnfolderBase]: 6/76 cut-off events. [2023-08-25 07:52:55,545 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 07:52:55,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 76 events. 6/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 119 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2023-08-25 07:52:55,547 INFO L119 LiptonReduction]: Number of co-enabled transitions 1792 [2023-08-25 07:52:57,549 INFO L134 LiptonReduction]: Checked pairs total: 2074 [2023-08-25 07:52:57,550 INFO L136 LiptonReduction]: Total number of compositions: 78 [2023-08-25 07:52:57,561 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 07:52:57,566 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;@963ca94, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 07:52:57,566 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-08-25 07:52:57,568 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 07:52:57,568 INFO L124 PetriNetUnfolderBase]: 1/6 cut-off events. [2023-08-25 07:52:57,569 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 07:52:57,569 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:52:57,569 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-25 07:52:57,569 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (and 10 more)] === [2023-08-25 07:52:57,573 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:52:57,573 INFO L85 PathProgramCache]: Analyzing trace with hash 10943499, now seen corresponding path program 1 times [2023-08-25 07:52:57,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:52:57,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736923475] [2023-08-25 07:52:57,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:52:57,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:52:57,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:52:57,716 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 07:52:57,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:52:57,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736923475] [2023-08-25 07:52:57,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736923475] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:52:57,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:52:57,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 07:52:57,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506005215] [2023-08-25 07:52:57,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:52:57,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 07:52:57,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:52:57,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 07:52:57,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 07:52:57,751 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 156 [2023-08-25 07:52:57,752 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 19 transitions, 44 flow. Second operand has 2 states, 2 states have (on average 63.0) internal successors, (126), 2 states have internal predecessors, (126), 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 07:52:57,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:52:57,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 156 [2023-08-25 07:52:57,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:52:57,806 INFO L124 PetriNetUnfolderBase]: 70/113 cut-off events. [2023-08-25 07:52:57,806 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 07:52:57,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 113 events. 70/113 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 256 event pairs, 44 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 228. Up to 114 conditions per place. [2023-08-25 07:52:57,808 INFO L140 encePairwiseOnDemand]: 150/156 looper letters, 12 selfloop transitions, 0 changer transitions 1/13 dead transitions. [2023-08-25 07:52:57,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 13 transitions, 58 flow [2023-08-25 07:52:57,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 07:52:57,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 07:52:57,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 141 transitions. [2023-08-25 07:52:57,822 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4519230769230769 [2023-08-25 07:52:57,822 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 141 transitions. [2023-08-25 07:52:57,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 141 transitions. [2023-08-25 07:52:57,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:52:57,825 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 141 transitions. [2023-08-25 07:52:57,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 70.5) internal successors, (141), 2 states have internal predecessors, (141), 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 07:52:57,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 156.0) internal successors, (468), 3 states have internal predecessors, (468), 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 07:52:57,830 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 156.0) internal successors, (468), 3 states have internal predecessors, (468), 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 07:52:57,832 INFO L175 Difference]: Start difference. First operand has 24 places, 19 transitions, 44 flow. Second operand 2 states and 141 transitions. [2023-08-25 07:52:57,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 13 transitions, 58 flow [2023-08-25 07:52:57,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 13 transitions, 56 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 07:52:57,835 INFO L231 Difference]: Finished difference. Result has 17 places, 12 transitions, 28 flow [2023-08-25 07:52:57,836 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=28, PETRI_PLACES=17, PETRI_TRANSITIONS=12} [2023-08-25 07:52:57,839 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, -7 predicate places. [2023-08-25 07:52:57,839 INFO L495 AbstractCegarLoop]: Abstraction has has 17 places, 12 transitions, 28 flow [2023-08-25 07:52:57,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 63.0) internal successors, (126), 2 states have internal predecessors, (126), 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 07:52:57,839 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:52:57,839 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 07:52:57,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 07:52:57,840 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (and 10 more)] === [2023-08-25 07:52:57,840 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:52:57,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1927611490, now seen corresponding path program 1 times [2023-08-25 07:52:57,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:52:57,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806585012] [2023-08-25 07:52:57,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:52:57,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:52:57,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:52:58,056 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 07:52:58,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:52:58,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806585012] [2023-08-25 07:52:58,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806585012] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:52:58,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:52:58,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 07:52:58,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106259522] [2023-08-25 07:52:58,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:52:58,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 07:52:58,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:52:58,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 07:52:58,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 07:52:58,060 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 156 [2023-08-25 07:52:58,061 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 12 transitions, 28 flow. Second operand has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 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 07:52:58,061 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:52:58,061 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 156 [2023-08-25 07:52:58,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:52:58,120 INFO L124 PetriNetUnfolderBase]: 64/107 cut-off events. [2023-08-25 07:52:58,120 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 07:52:58,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 107 events. 64/107 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 233 event pairs, 11 based on Foata normal form. 9/87 useless extension candidates. Maximal degree in co-relation 222. Up to 55 conditions per place. [2023-08-25 07:52:58,122 INFO L140 encePairwiseOnDemand]: 152/156 looper letters, 18 selfloop transitions, 4 changer transitions 2/24 dead transitions. [2023-08-25 07:52:58,122 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 24 transitions, 100 flow [2023-08-25 07:52:58,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 07:52:58,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 07:52:58,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 249 transitions. [2023-08-25 07:52:58,129 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39903846153846156 [2023-08-25 07:52:58,129 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 249 transitions. [2023-08-25 07:52:58,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 249 transitions. [2023-08-25 07:52:58,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:52:58,131 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 249 transitions. [2023-08-25 07:52:58,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 62.25) internal successors, (249), 4 states have internal predecessors, (249), 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 07:52:58,136 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 156.0) internal successors, (780), 5 states have internal predecessors, (780), 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 07:52:58,136 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 156.0) internal successors, (780), 5 states have internal predecessors, (780), 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 07:52:58,137 INFO L175 Difference]: Start difference. First operand has 17 places, 12 transitions, 28 flow. Second operand 4 states and 249 transitions. [2023-08-25 07:52:58,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 24 transitions, 100 flow [2023-08-25 07:52:58,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 24 transitions, 100 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 07:52:58,138 INFO L231 Difference]: Finished difference. Result has 21 places, 15 transitions, 53 flow [2023-08-25 07:52:58,138 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=53, PETRI_PLACES=21, PETRI_TRANSITIONS=15} [2023-08-25 07:52:58,138 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, -3 predicate places. [2023-08-25 07:52:58,139 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 15 transitions, 53 flow [2023-08-25 07:52:58,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 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 07:52:58,140 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:52:58,142 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:52:58,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 07:52:58,144 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (and 10 more)] === [2023-08-25 07:52:58,146 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:52:58,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1303192770, now seen corresponding path program 1 times [2023-08-25 07:52:58,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:52:58,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398251515] [2023-08-25 07:52:58,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:52:58,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:52:58,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:52:58,258 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 07:52:58,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:52:58,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398251515] [2023-08-25 07:52:58,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398251515] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:52:58,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:52:58,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 07:52:58,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952284734] [2023-08-25 07:52:58,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:52:58,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 07:52:58,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:52:58,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 07:52:58,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 07:52:58,263 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 156 [2023-08-25 07:52:58,264 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 15 transitions, 53 flow. Second operand has 5 states, 5 states have (on average 57.6) internal successors, (288), 5 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:52:58,264 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:52:58,264 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 156 [2023-08-25 07:52:58,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:52:58,356 INFO L124 PetriNetUnfolderBase]: 126/217 cut-off events. [2023-08-25 07:52:58,356 INFO L125 PetriNetUnfolderBase]: For 73/73 co-relation queries the response was YES. [2023-08-25 07:52:58,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 548 conditions, 217 events. 126/217 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 664 event pairs, 19 based on Foata normal form. 10/191 useless extension candidates. Maximal degree in co-relation 542. Up to 89 conditions per place. [2023-08-25 07:52:58,360 INFO L140 encePairwiseOnDemand]: 151/156 looper letters, 33 selfloop transitions, 9 changer transitions 0/42 dead transitions. [2023-08-25 07:52:58,360 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 42 transitions, 215 flow [2023-08-25 07:52:58,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 07:52:58,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 07:52:58,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 374 transitions. [2023-08-25 07:52:58,362 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3995726495726496 [2023-08-25 07:52:58,362 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 374 transitions. [2023-08-25 07:52:58,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 374 transitions. [2023-08-25 07:52:58,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:52:58,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 374 transitions. [2023-08-25 07:52:58,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 62.333333333333336) internal successors, (374), 6 states have internal predecessors, (374), 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 07:52:58,370 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 156.0) internal successors, (1092), 7 states have internal predecessors, (1092), 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 07:52:58,371 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 156.0) internal successors, (1092), 7 states have internal predecessors, (1092), 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 07:52:58,371 INFO L175 Difference]: Start difference. First operand has 21 places, 15 transitions, 53 flow. Second operand 6 states and 374 transitions. [2023-08-25 07:52:58,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 42 transitions, 215 flow [2023-08-25 07:52:58,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 42 transitions, 215 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 07:52:58,373 INFO L231 Difference]: Finished difference. Result has 30 places, 24 transitions, 134 flow [2023-08-25 07:52:58,373 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=134, PETRI_PLACES=30, PETRI_TRANSITIONS=24} [2023-08-25 07:52:58,374 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 6 predicate places. [2023-08-25 07:52:58,374 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 24 transitions, 134 flow [2023-08-25 07:52:58,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.6) internal successors, (288), 5 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:52:58,375 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:52:58,375 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:52:58,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 07:52:58,379 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (and 10 more)] === [2023-08-25 07:52:58,380 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:52:58,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1303209510, now seen corresponding path program 2 times [2023-08-25 07:52:58,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:52:58,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692974222] [2023-08-25 07:52:58,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:52:58,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:52:58,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:52:58,506 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 07:52:58,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:52:58,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692974222] [2023-08-25 07:52:58,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692974222] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:52:58,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:52:58,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 07:52:58,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308633827] [2023-08-25 07:52:58,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:52:58,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 07:52:58,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:52:58,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 07:52:58,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 07:52:58,509 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 156 [2023-08-25 07:52:58,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 24 transitions, 134 flow. Second operand has 5 states, 5 states have (on average 57.6) internal successors, (288), 5 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:52:58,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:52:58,509 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 156 [2023-08-25 07:52:58,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:52:58,590 INFO L124 PetriNetUnfolderBase]: 114/199 cut-off events. [2023-08-25 07:52:58,591 INFO L125 PetriNetUnfolderBase]: For 280/280 co-relation queries the response was YES. [2023-08-25 07:52:58,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 655 conditions, 199 events. 114/199 cut-off events. For 280/280 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 624 event pairs, 19 based on Foata normal form. 10/209 useless extension candidates. Maximal degree in co-relation 644. Up to 84 conditions per place. [2023-08-25 07:52:58,592 INFO L140 encePairwiseOnDemand]: 151/156 looper letters, 29 selfloop transitions, 9 changer transitions 4/42 dead transitions. [2023-08-25 07:52:58,592 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 42 transitions, 284 flow [2023-08-25 07:52:58,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 07:52:58,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 07:52:58,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 313 transitions. [2023-08-25 07:52:58,594 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4012820512820513 [2023-08-25 07:52:58,594 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 313 transitions. [2023-08-25 07:52:58,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 313 transitions. [2023-08-25 07:52:58,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:52:58,595 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 313 transitions. [2023-08-25 07:52:58,596 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 62.6) internal successors, (313), 5 states have internal predecessors, (313), 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 07:52:58,597 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 156.0) internal successors, (936), 6 states have internal predecessors, (936), 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 07:52:58,598 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 156.0) internal successors, (936), 6 states have internal predecessors, (936), 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 07:52:58,598 INFO L175 Difference]: Start difference. First operand has 30 places, 24 transitions, 134 flow. Second operand 5 states and 313 transitions. [2023-08-25 07:52:58,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 42 transitions, 284 flow [2023-08-25 07:52:58,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 42 transitions, 282 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-08-25 07:52:58,601 INFO L231 Difference]: Finished difference. Result has 36 places, 26 transitions, 182 flow [2023-08-25 07:52:58,601 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=182, PETRI_PLACES=36, PETRI_TRANSITIONS=26} [2023-08-25 07:52:58,602 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 12 predicate places. [2023-08-25 07:52:58,602 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 26 transitions, 182 flow [2023-08-25 07:52:58,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.6) internal successors, (288), 5 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:52:58,603 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:52:58,603 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:52:58,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 07:52:58,603 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (and 10 more)] === [2023-08-25 07:52:58,603 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:52:58,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1194458659, now seen corresponding path program 1 times [2023-08-25 07:52:58,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:52:58,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104384596] [2023-08-25 07:52:58,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:52:58,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:52:58,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:52:58,822 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 07:52:58,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:52:58,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104384596] [2023-08-25 07:52:58,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104384596] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:52:58,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:52:58,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 07:52:58,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33702881] [2023-08-25 07:52:58,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:52:58,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 07:52:58,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:52:58,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 07:52:58,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-25 07:52:58,824 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 156 [2023-08-25 07:52:58,825 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 26 transitions, 182 flow. Second operand has 6 states, 6 states have (on average 57.666666666666664) internal successors, (346), 6 states have internal predecessors, (346), 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 07:52:58,825 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:52:58,825 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 156 [2023-08-25 07:52:58,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:52:58,971 INFO L124 PetriNetUnfolderBase]: 126/219 cut-off events. [2023-08-25 07:52:58,971 INFO L125 PetriNetUnfolderBase]: For 533/533 co-relation queries the response was YES. [2023-08-25 07:52:58,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 795 conditions, 219 events. 126/219 cut-off events. For 533/533 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 699 event pairs, 19 based on Foata normal form. 4/223 useless extension candidates. Maximal degree in co-relation 781. Up to 86 conditions per place. [2023-08-25 07:52:58,972 INFO L140 encePairwiseOnDemand]: 151/156 looper letters, 32 selfloop transitions, 16 changer transitions 11/59 dead transitions. [2023-08-25 07:52:58,973 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 59 transitions, 425 flow [2023-08-25 07:52:58,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 07:52:58,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 07:52:58,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 556 transitions. [2023-08-25 07:52:58,975 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.396011396011396 [2023-08-25 07:52:58,975 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 556 transitions. [2023-08-25 07:52:58,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 556 transitions. [2023-08-25 07:52:58,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:52:58,975 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 556 transitions. [2023-08-25 07:52:58,977 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 61.77777777777778) internal successors, (556), 9 states have internal predecessors, (556), 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 07:52:58,979 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 156.0) internal successors, (1560), 10 states have internal predecessors, (1560), 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 07:52:58,979 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 156.0) internal successors, (1560), 10 states have internal predecessors, (1560), 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 07:52:58,979 INFO L175 Difference]: Start difference. First operand has 36 places, 26 transitions, 182 flow. Second operand 9 states and 556 transitions. [2023-08-25 07:52:58,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 59 transitions, 425 flow [2023-08-25 07:52:58,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 59 transitions, 388 flow, removed 9 selfloop flow, removed 4 redundant places. [2023-08-25 07:52:58,983 INFO L231 Difference]: Finished difference. Result has 43 places, 32 transitions, 251 flow [2023-08-25 07:52:58,983 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=251, PETRI_PLACES=43, PETRI_TRANSITIONS=32} [2023-08-25 07:52:58,983 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 19 predicate places. [2023-08-25 07:52:58,984 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 32 transitions, 251 flow [2023-08-25 07:52:58,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 57.666666666666664) internal successors, (346), 6 states have internal predecessors, (346), 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 07:52:58,984 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:52:58,984 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:52:58,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 07:52:58,984 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (and 10 more)] === [2023-08-25 07:52:58,985 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:52:58,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1194528409, now seen corresponding path program 2 times [2023-08-25 07:52:58,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:52:58,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410294100] [2023-08-25 07:52:58,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:52:58,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:52:58,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:52:59,059 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 07:52:59,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:52:59,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410294100] [2023-08-25 07:52:59,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410294100] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:52:59,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:52:59,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 07:52:59,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137865584] [2023-08-25 07:52:59,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:52:59,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 07:52:59,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:52:59,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 07:52:59,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-25 07:52:59,062 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 156 [2023-08-25 07:52:59,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 32 transitions, 251 flow. Second operand has 6 states, 6 states have (on average 57.666666666666664) internal successors, (346), 6 states have internal predecessors, (346), 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 07:52:59,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:52:59,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 156 [2023-08-25 07:52:59,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:52:59,154 INFO L124 PetriNetUnfolderBase]: 162/283 cut-off events. [2023-08-25 07:52:59,154 INFO L125 PetriNetUnfolderBase]: For 829/829 co-relation queries the response was YES. [2023-08-25 07:52:59,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1091 conditions, 283 events. 162/283 cut-off events. For 829/829 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 967 event pairs, 18 based on Foata normal form. 8/291 useless extension candidates. Maximal degree in co-relation 1075. Up to 77 conditions per place. [2023-08-25 07:52:59,156 INFO L140 encePairwiseOnDemand]: 151/156 looper letters, 38 selfloop transitions, 20 changer transitions 3/61 dead transitions. [2023-08-25 07:52:59,156 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 61 transitions, 497 flow [2023-08-25 07:52:59,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 07:52:59,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 07:52:59,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 494 transitions. [2023-08-25 07:52:59,158 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3958333333333333 [2023-08-25 07:52:59,158 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 494 transitions. [2023-08-25 07:52:59,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 494 transitions. [2023-08-25 07:52:59,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:52:59,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 494 transitions. [2023-08-25 07:52:59,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 61.75) internal successors, (494), 8 states have internal predecessors, (494), 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 07:52:59,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 156.0) internal successors, (1404), 9 states have internal predecessors, (1404), 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 07:52:59,161 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 156.0) internal successors, (1404), 9 states have internal predecessors, (1404), 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 07:52:59,161 INFO L175 Difference]: Start difference. First operand has 43 places, 32 transitions, 251 flow. Second operand 8 states and 494 transitions. [2023-08-25 07:52:59,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 61 transitions, 497 flow [2023-08-25 07:52:59,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 61 transitions, 467 flow, removed 9 selfloop flow, removed 2 redundant places. [2023-08-25 07:52:59,166 INFO L231 Difference]: Finished difference. Result has 52 places, 38 transitions, 344 flow [2023-08-25 07:52:59,166 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=344, PETRI_PLACES=52, PETRI_TRANSITIONS=38} [2023-08-25 07:52:59,166 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 28 predicate places. [2023-08-25 07:52:59,166 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 38 transitions, 344 flow [2023-08-25 07:52:59,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 57.666666666666664) internal successors, (346), 6 states have internal predecessors, (346), 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 07:52:59,167 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:52:59,167 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:52:59,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 07:52:59,167 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (and 10 more)] === [2023-08-25 07:52:59,167 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:52:59,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1229400619, now seen corresponding path program 3 times [2023-08-25 07:52:59,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:52:59,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635365455] [2023-08-25 07:52:59,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:52:59,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:52:59,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:52:59,323 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 07:52:59,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:52:59,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635365455] [2023-08-25 07:52:59,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635365455] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:52:59,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:52:59,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 07:52:59,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226606821] [2023-08-25 07:52:59,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:52:59,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 07:52:59,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:52:59,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 07:52:59,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-25 07:52:59,326 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 156 [2023-08-25 07:52:59,326 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 38 transitions, 344 flow. Second operand has 6 states, 6 states have (on average 57.666666666666664) internal successors, (346), 6 states have internal predecessors, (346), 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 07:52:59,326 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:52:59,327 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 156 [2023-08-25 07:52:59,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:52:59,445 INFO L124 PetriNetUnfolderBase]: 158/275 cut-off events. [2023-08-25 07:52:59,445 INFO L125 PetriNetUnfolderBase]: For 1250/1250 co-relation queries the response was YES. [2023-08-25 07:52:59,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1254 conditions, 275 events. 158/275 cut-off events. For 1250/1250 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 923 event pairs, 18 based on Foata normal form. 8/283 useless extension candidates. Maximal degree in co-relation 1234. Up to 65 conditions per place. [2023-08-25 07:52:59,447 INFO L140 encePairwiseOnDemand]: 151/156 looper letters, 28 selfloop transitions, 25 changer transitions 10/63 dead transitions. [2023-08-25 07:52:59,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 63 transitions, 616 flow [2023-08-25 07:52:59,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 07:52:59,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 07:52:59,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 493 transitions. [2023-08-25 07:52:59,449 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39503205128205127 [2023-08-25 07:52:59,449 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 493 transitions. [2023-08-25 07:52:59,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 493 transitions. [2023-08-25 07:52:59,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:52:59,450 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 493 transitions. [2023-08-25 07:52:59,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 61.625) internal successors, (493), 8 states have internal predecessors, (493), 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 07:52:59,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 156.0) internal successors, (1404), 9 states have internal predecessors, (1404), 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 07:52:59,453 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 156.0) internal successors, (1404), 9 states have internal predecessors, (1404), 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 07:52:59,453 INFO L175 Difference]: Start difference. First operand has 52 places, 38 transitions, 344 flow. Second operand 8 states and 493 transitions. [2023-08-25 07:52:59,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 63 transitions, 616 flow [2023-08-25 07:52:59,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 63 transitions, 581 flow, removed 9 selfloop flow, removed 3 redundant places. [2023-08-25 07:52:59,460 INFO L231 Difference]: Finished difference. Result has 59 places, 41 transitions, 437 flow [2023-08-25 07:52:59,460 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=437, PETRI_PLACES=59, PETRI_TRANSITIONS=41} [2023-08-25 07:52:59,460 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 35 predicate places. [2023-08-25 07:52:59,461 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 41 transitions, 437 flow [2023-08-25 07:52:59,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 57.666666666666664) internal successors, (346), 6 states have internal predecessors, (346), 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 07:52:59,461 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:52:59,461 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:52:59,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 07:52:59,461 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (and 10 more)] === [2023-08-25 07:52:59,462 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:52:59,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1643179524, now seen corresponding path program 4 times [2023-08-25 07:52:59,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:52:59,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448301640] [2023-08-25 07:52:59,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:52:59,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:52:59,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:52:59,637 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 07:52:59,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:52:59,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448301640] [2023-08-25 07:52:59,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448301640] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 07:52:59,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548451818] [2023-08-25 07:52:59,638 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-25 07:52:59,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 07:52:59,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 07:52:59,641 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 07:52:59,668 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 07:52:59,725 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-25 07:52:59,725 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 07:52:59,726 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 9 conjunts are in the unsatisfiable core [2023-08-25 07:52:59,730 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 07:52:59,786 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 07:52:59,787 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 07:52:59,884 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 07:52:59,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548451818] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 07:52:59,885 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 07:52:59,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-08-25 07:52:59,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023884594] [2023-08-25 07:52:59,885 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 07:52:59,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-25 07:52:59,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:52:59,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-25 07:52:59,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-08-25 07:52:59,887 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 156 [2023-08-25 07:52:59,888 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 41 transitions, 437 flow. Second operand has 12 states, 12 states have (on average 57.916666666666664) internal successors, (695), 12 states have internal predecessors, (695), 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 07:52:59,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:52:59,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 156 [2023-08-25 07:52:59,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:53:00,061 INFO L124 PetriNetUnfolderBase]: 182/323 cut-off events. [2023-08-25 07:53:00,061 INFO L125 PetriNetUnfolderBase]: For 2474/2474 co-relation queries the response was YES. [2023-08-25 07:53:00,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1606 conditions, 323 events. 182/323 cut-off events. For 2474/2474 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1092 event pairs, 41 based on Foata normal form. 24/347 useless extension candidates. Maximal degree in co-relation 1583. Up to 181 conditions per place. [2023-08-25 07:53:00,064 INFO L140 encePairwiseOnDemand]: 151/156 looper letters, 45 selfloop transitions, 17 changer transitions 19/81 dead transitions. [2023-08-25 07:53:00,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 81 transitions, 873 flow [2023-08-25 07:53:00,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 07:53:00,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 07:53:00,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 737 transitions. [2023-08-25 07:53:00,066 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3936965811965812 [2023-08-25 07:53:00,066 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 737 transitions. [2023-08-25 07:53:00,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 737 transitions. [2023-08-25 07:53:00,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:53:00,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 737 transitions. [2023-08-25 07:53:00,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 61.416666666666664) internal successors, (737), 12 states have internal predecessors, (737), 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 07:53:00,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 156.0) internal successors, (2028), 13 states have internal predecessors, (2028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:53:00,072 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 156.0) internal successors, (2028), 13 states have internal predecessors, (2028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:53:00,072 INFO L175 Difference]: Start difference. First operand has 59 places, 41 transitions, 437 flow. Second operand 12 states and 737 transitions. [2023-08-25 07:53:00,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 81 transitions, 873 flow [2023-08-25 07:53:00,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 81 transitions, 820 flow, removed 10 selfloop flow, removed 5 redundant places. [2023-08-25 07:53:00,080 INFO L231 Difference]: Finished difference. Result has 71 places, 47 transitions, 544 flow [2023-08-25 07:53:00,080 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=544, PETRI_PLACES=71, PETRI_TRANSITIONS=47} [2023-08-25 07:53:00,081 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 47 predicate places. [2023-08-25 07:53:00,081 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 47 transitions, 544 flow [2023-08-25 07:53:00,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 57.916666666666664) internal successors, (695), 12 states have internal predecessors, (695), 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 07:53:00,081 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:53:00,082 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:53:00,087 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 07:53:00,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 07:53:00,286 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (and 10 more)] === [2023-08-25 07:53:00,287 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:53:00,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1627092384, now seen corresponding path program 5 times [2023-08-25 07:53:00,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:53:00,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823214957] [2023-08-25 07:53:00,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:53:00,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:53:00,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:53:00,390 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 07:53:00,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:53:00,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823214957] [2023-08-25 07:53:00,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823214957] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 07:53:00,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746491448] [2023-08-25 07:53:00,394 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-08-25 07:53:00,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 07:53:00,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 07:53:00,397 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 07:53:00,433 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 07:53:00,479 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 07:53:00,480 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 07:53:00,480 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 9 conjunts are in the unsatisfiable core [2023-08-25 07:53:00,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 07:53:00,517 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 07:53:00,518 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 07:53:00,618 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 07:53:00,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [746491448] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 07:53:00,619 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 07:53:00,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-08-25 07:53:00,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919776180] [2023-08-25 07:53:00,619 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 07:53:00,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-25 07:53:00,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:53:00,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-25 07:53:00,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-08-25 07:53:00,621 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 156 [2023-08-25 07:53:00,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 47 transitions, 544 flow. Second operand has 13 states, 13 states have (on average 57.84615384615385) internal successors, (752), 13 states have internal predecessors, (752), 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 07:53:00,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:53:00,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 156 [2023-08-25 07:53:00,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:53:00,941 INFO L124 PetriNetUnfolderBase]: 244/439 cut-off events. [2023-08-25 07:53:00,941 INFO L125 PetriNetUnfolderBase]: For 6692/6692 co-relation queries the response was YES. [2023-08-25 07:53:00,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2514 conditions, 439 events. 244/439 cut-off events. For 6692/6692 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1683 event pairs, 30 based on Foata normal form. 28/467 useless extension candidates. Maximal degree in co-relation 2485. Up to 128 conditions per place. [2023-08-25 07:53:00,944 INFO L140 encePairwiseOnDemand]: 151/156 looper letters, 46 selfloop transitions, 42 changer transitions 29/117 dead transitions. [2023-08-25 07:53:00,944 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 117 transitions, 1405 flow [2023-08-25 07:53:00,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-25 07:53:00,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-25 07:53:00,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1105 transitions. [2023-08-25 07:53:00,948 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39351851851851855 [2023-08-25 07:53:00,948 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1105 transitions. [2023-08-25 07:53:00,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1105 transitions. [2023-08-25 07:53:00,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:53:00,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1105 transitions. [2023-08-25 07:53:00,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 61.388888888888886) internal successors, (1105), 18 states have internal predecessors, (1105), 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 07:53:00,955 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 156.0) internal successors, (2964), 19 states have internal predecessors, (2964), 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 07:53:00,956 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 156.0) internal successors, (2964), 19 states have internal predecessors, (2964), 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 07:53:00,956 INFO L175 Difference]: Start difference. First operand has 71 places, 47 transitions, 544 flow. Second operand 18 states and 1105 transitions. [2023-08-25 07:53:00,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 117 transitions, 1405 flow [2023-08-25 07:53:00,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 117 transitions, 1265 flow, removed 59 selfloop flow, removed 5 redundant places. [2023-08-25 07:53:00,970 INFO L231 Difference]: Finished difference. Result has 93 places, 64 transitions, 898 flow [2023-08-25 07:53:00,971 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=898, PETRI_PLACES=93, PETRI_TRANSITIONS=64} [2023-08-25 07:53:00,971 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 69 predicate places. [2023-08-25 07:53:00,971 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 64 transitions, 898 flow [2023-08-25 07:53:00,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 57.84615384615385) internal successors, (752), 13 states have internal predecessors, (752), 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 07:53:00,972 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:53:00,972 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:53:00,976 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 07:53:01,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-08-25 07:53:01,177 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (and 10 more)] === [2023-08-25 07:53:01,177 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:53:01,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1185544892, now seen corresponding path program 6 times [2023-08-25 07:53:01,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:53:01,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967900616] [2023-08-25 07:53:01,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:53:01,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:53:01,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:53:01,270 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:53:01,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:53:01,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967900616] [2023-08-25 07:53:01,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967900616] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 07:53:01,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703279085] [2023-08-25 07:53:01,270 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-08-25 07:53:01,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 07:53:01,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 07:53:01,271 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 07:53:01,300 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 07:53:01,346 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2023-08-25 07:53:01,346 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 07:53:01,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 10 conjunts are in the unsatisfiable core [2023-08-25 07:53:01,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 07:53:01,374 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:53:01,374 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 07:53:01,471 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:53:01,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [703279085] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 07:53:01,471 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 07:53:01,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-08-25 07:53:01,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91592538] [2023-08-25 07:53:01,471 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 07:53:01,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-25 07:53:01,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:53:01,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-25 07:53:01,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-08-25 07:53:01,474 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 156 [2023-08-25 07:53:01,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 64 transitions, 898 flow. Second operand has 14 states, 14 states have (on average 57.714285714285715) internal successors, (808), 14 states have internal predecessors, (808), 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 07:53:01,474 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:53:01,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 156 [2023-08-25 07:53:01,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:53:01,764 INFO L124 PetriNetUnfolderBase]: 328/599 cut-off events. [2023-08-25 07:53:01,764 INFO L125 PetriNetUnfolderBase]: For 14932/14932 co-relation queries the response was YES. [2023-08-25 07:53:01,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4414 conditions, 599 events. 328/599 cut-off events. For 14932/14932 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2517 event pairs, 23 based on Foata normal form. 24/623 useless extension candidates. Maximal degree in co-relation 4375. Up to 204 conditions per place. [2023-08-25 07:53:01,770 INFO L140 encePairwiseOnDemand]: 151/156 looper letters, 56 selfloop transitions, 58 changer transitions 19/133 dead transitions. [2023-08-25 07:53:01,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 133 transitions, 2133 flow [2023-08-25 07:53:01,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-25 07:53:01,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-25 07:53:01,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1100 transitions. [2023-08-25 07:53:01,773 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39173789173789175 [2023-08-25 07:53:01,773 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1100 transitions. [2023-08-25 07:53:01,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1100 transitions. [2023-08-25 07:53:01,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:53:01,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1100 transitions. [2023-08-25 07:53:01,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 61.111111111111114) internal successors, (1100), 18 states have internal predecessors, (1100), 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 07:53:01,780 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 156.0) internal successors, (2964), 19 states have internal predecessors, (2964), 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 07:53:01,781 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 156.0) internal successors, (2964), 19 states have internal predecessors, (2964), 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 07:53:01,781 INFO L175 Difference]: Start difference. First operand has 93 places, 64 transitions, 898 flow. Second operand 18 states and 1100 transitions. [2023-08-25 07:53:01,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 133 transitions, 2133 flow [2023-08-25 07:53:01,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 133 transitions, 1847 flow, removed 129 selfloop flow, removed 7 redundant places. [2023-08-25 07:53:01,807 INFO L231 Difference]: Finished difference. Result has 111 places, 80 transitions, 1254 flow [2023-08-25 07:53:01,807 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=694, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1254, PETRI_PLACES=111, PETRI_TRANSITIONS=80} [2023-08-25 07:53:01,808 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 87 predicate places. [2023-08-25 07:53:01,808 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 80 transitions, 1254 flow [2023-08-25 07:53:01,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 57.714285714285715) internal successors, (808), 14 states have internal predecessors, (808), 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 07:53:01,808 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:53:01,809 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:53:01,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-25 07:53:02,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 07:53:02,016 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (and 10 more)] === [2023-08-25 07:53:02,016 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:53:02,016 INFO L85 PathProgramCache]: Analyzing trace with hash 338622504, now seen corresponding path program 7 times [2023-08-25 07:53:02,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:53:02,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637647364] [2023-08-25 07:53:02,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:53:02,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:53:02,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:53:02,099 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:53:02,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:53:02,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637647364] [2023-08-25 07:53:02,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637647364] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 07:53:02,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371689299] [2023-08-25 07:53:02,115 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-08-25 07:53:02,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 07:53:02,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 07:53:02,116 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 07:53:02,132 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 07:53:02,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:53:02,198 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 10 conjunts are in the unsatisfiable core [2023-08-25 07:53:02,199 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 07:53:02,239 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:53:02,239 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 07:53:02,326 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:53:02,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [371689299] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 07:53:02,327 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 07:53:02,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2023-08-25 07:53:02,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48924474] [2023-08-25 07:53:02,327 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 07:53:02,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-08-25 07:53:02,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:53:02,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-08-25 07:53:02,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2023-08-25 07:53:02,330 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 156 [2023-08-25 07:53:02,331 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 80 transitions, 1254 flow. Second operand has 15 states, 15 states have (on average 57.733333333333334) internal successors, (866), 15 states have internal predecessors, (866), 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 07:53:02,331 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:53:02,331 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 156 [2023-08-25 07:53:02,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:53:02,775 INFO L124 PetriNetUnfolderBase]: 380/691 cut-off events. [2023-08-25 07:53:02,775 INFO L125 PetriNetUnfolderBase]: For 26652/26652 co-relation queries the response was YES. [2023-08-25 07:53:02,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5752 conditions, 691 events. 380/691 cut-off events. For 26652/26652 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2959 event pairs, 12 based on Foata normal form. 24/715 useless extension candidates. Maximal degree in co-relation 5705. Up to 235 conditions per place. [2023-08-25 07:53:02,782 INFO L140 encePairwiseOnDemand]: 151/156 looper letters, 45 selfloop transitions, 82 changer transitions 36/163 dead transitions. [2023-08-25 07:53:02,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 163 transitions, 2912 flow [2023-08-25 07:53:02,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-08-25 07:53:02,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-08-25 07:53:02,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1287 transitions. [2023-08-25 07:53:02,788 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39285714285714285 [2023-08-25 07:53:02,788 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1287 transitions. [2023-08-25 07:53:02,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1287 transitions. [2023-08-25 07:53:02,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:53:02,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1287 transitions. [2023-08-25 07:53:02,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 61.285714285714285) internal successors, (1287), 21 states have internal predecessors, (1287), 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 07:53:02,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 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 07:53:02,797 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 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 07:53:02,797 INFO L175 Difference]: Start difference. First operand has 111 places, 80 transitions, 1254 flow. Second operand 21 states and 1287 transitions. [2023-08-25 07:53:02,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 163 transitions, 2912 flow [2023-08-25 07:53:02,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 163 transitions, 2352 flow, removed 245 selfloop flow, removed 12 redundant places. [2023-08-25 07:53:02,840 INFO L231 Difference]: Finished difference. Result has 129 places, 99 transitions, 1662 flow [2023-08-25 07:53:02,841 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=930, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1662, PETRI_PLACES=129, PETRI_TRANSITIONS=99} [2023-08-25 07:53:02,841 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 105 predicate places. [2023-08-25 07:53:02,841 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 99 transitions, 1662 flow [2023-08-25 07:53:02,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 57.733333333333334) internal successors, (866), 15 states have internal predecessors, (866), 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 07:53:02,842 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:53:02,842 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:53:02,850 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 07:53:03,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 07:53:03,047 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (and 10 more)] === [2023-08-25 07:53:03,047 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:53:03,048 INFO L85 PathProgramCache]: Analyzing trace with hash -454733236, now seen corresponding path program 8 times [2023-08-25 07:53:03,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:53:03,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069128791] [2023-08-25 07:53:03,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:53:03,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:53:03,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:53:03,276 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:53:03,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:53:03,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069128791] [2023-08-25 07:53:03,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069128791] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 07:53:03,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392963025] [2023-08-25 07:53:03,277 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 07:53:03,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 07:53:03,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 07:53:03,278 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 07:53:03,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-25 07:53:03,352 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 07:53:03,352 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 07:53:03,353 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 14 conjunts are in the unsatisfiable core [2023-08-25 07:53:03,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 07:53:03,408 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:53:03,408 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 07:53:03,508 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:53:03,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [392963025] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 07:53:03,508 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 07:53:03,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 16 [2023-08-25 07:53:03,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934525637] [2023-08-25 07:53:03,510 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 07:53:03,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-08-25 07:53:03,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:53:03,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-08-25 07:53:03,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2023-08-25 07:53:03,512 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 156 [2023-08-25 07:53:03,513 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 99 transitions, 1662 flow. Second operand has 18 states, 18 states have (on average 57.666666666666664) internal successors, (1038), 18 states have internal predecessors, (1038), 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 07:53:03,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:53:03,513 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 156 [2023-08-25 07:53:03,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:53:04,126 INFO L124 PetriNetUnfolderBase]: 480/859 cut-off events. [2023-08-25 07:53:04,126 INFO L125 PetriNetUnfolderBase]: For 35097/35097 co-relation queries the response was YES. [2023-08-25 07:53:04,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7675 conditions, 859 events. 480/859 cut-off events. For 35097/35097 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3731 event pairs, 15 based on Foata normal form. 20/879 useless extension candidates. Maximal degree in co-relation 7621. Up to 295 conditions per place. [2023-08-25 07:53:04,134 INFO L140 encePairwiseOnDemand]: 151/156 looper letters, 52 selfloop transitions, 107 changer transitions 50/209 dead transitions. [2023-08-25 07:53:04,134 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 209 transitions, 4030 flow [2023-08-25 07:53:04,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-08-25 07:53:04,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2023-08-25 07:53:04,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 1710 transitions. [2023-08-25 07:53:04,138 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3914835164835165 [2023-08-25 07:53:04,138 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 1710 transitions. [2023-08-25 07:53:04,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 1710 transitions. [2023-08-25 07:53:04,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:53:04,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 1710 transitions. [2023-08-25 07:53:04,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 61.07142857142857) internal successors, (1710), 28 states have internal predecessors, (1710), 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 07:53:04,146 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 156.0) internal successors, (4524), 29 states have internal predecessors, (4524), 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 07:53:04,146 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 156.0) internal successors, (4524), 29 states have internal predecessors, (4524), 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 07:53:04,146 INFO L175 Difference]: Start difference. First operand has 129 places, 99 transitions, 1662 flow. Second operand 28 states and 1710 transitions. [2023-08-25 07:53:04,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 209 transitions, 4030 flow [2023-08-25 07:53:04,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 209 transitions, 3458 flow, removed 249 selfloop flow, removed 14 redundant places. [2023-08-25 07:53:04,281 INFO L231 Difference]: Finished difference. Result has 152 places, 124 transitions, 2256 flow [2023-08-25 07:53:04,282 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=1316, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=2256, PETRI_PLACES=152, PETRI_TRANSITIONS=124} [2023-08-25 07:53:04,282 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 128 predicate places. [2023-08-25 07:53:04,282 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 124 transitions, 2256 flow [2023-08-25 07:53:04,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 57.666666666666664) internal successors, (1038), 18 states have internal predecessors, (1038), 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 07:53:04,283 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:53:04,283 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:53:04,289 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-08-25 07:53:04,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-08-25 07:53:04,488 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (and 10 more)] === [2023-08-25 07:53:04,489 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:53:04,489 INFO L85 PathProgramCache]: Analyzing trace with hash 557093541, now seen corresponding path program 9 times [2023-08-25 07:53:04,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:53:04,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113876364] [2023-08-25 07:53:04,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:53:04,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:53:04,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 07:53:04,510 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 07:53:04,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 07:53:04,548 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 07:53:04,548 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 07:53:04,550 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (12 of 13 remaining) [2023-08-25 07:53:04,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2023-08-25 07:53:04,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 13 remaining) [2023-08-25 07:53:04,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 13 remaining) [2023-08-25 07:53:04,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 13 remaining) [2023-08-25 07:53:04,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONDATA_RACE (7 of 13 remaining) [2023-08-25 07:53:04,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1ASSERT_VIOLATIONDATA_RACE (6 of 13 remaining) [2023-08-25 07:53:04,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2023-08-25 07:53:04,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2023-08-25 07:53:04,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2023-08-25 07:53:04,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2023-08-25 07:53:04,553 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2023-08-25 07:53:04,553 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2023-08-25 07:53:04,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 07:53:04,553 INFO L445 BasicCegarLoop]: Path program histogram: [9, 2, 1, 1] [2023-08-25 07:53:04,558 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 07:53:04,558 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 07:53:04,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 07:53:04 BasicIcfg [2023-08-25 07:53:04,617 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 07:53:04,618 INFO L158 Benchmark]: Toolchain (without parser) took 10188.33ms. Allocated memory was 390.1MB in the beginning and 648.0MB in the end (delta: 257.9MB). Free memory was 364.9MB in the beginning and 582.4MB in the end (delta: -217.5MB). Peak memory consumption was 42.1MB. Max. memory is 16.0GB. [2023-08-25 07:53:04,618 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 390.1MB. Free memory was 367.8MB in the beginning and 367.7MB in the end (delta: 86.2kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 07:53:04,618 INFO L158 Benchmark]: CACSL2BoogieTranslator took 422.87ms. Allocated memory is still 390.1MB. Free memory was 364.4MB in the beginning and 344.9MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 07:53:04,618 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.04ms. Allocated memory is still 390.1MB. Free memory was 344.9MB in the beginning and 343.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 07:53:04,619 INFO L158 Benchmark]: Boogie Preprocessor took 35.74ms. Allocated memory is still 390.1MB. Free memory was 343.0MB in the beginning and 341.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 07:53:04,619 INFO L158 Benchmark]: RCFGBuilder took 427.24ms. Allocated memory is still 390.1MB. Free memory was 341.4MB in the beginning and 325.6MB in the end (delta: 15.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-25 07:53:04,619 INFO L158 Benchmark]: TraceAbstraction took 9256.42ms. Allocated memory was 390.1MB in the beginning and 648.0MB in the end (delta: 257.9MB). Free memory was 324.6MB in the beginning and 582.4MB in the end (delta: -257.8MB). Peak memory consumption was 2.2MB. Max. memory is 16.0GB. [2023-08-25 07:53:04,621 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 390.1MB. Free memory was 367.8MB in the beginning and 367.7MB in the end (delta: 86.2kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 422.87ms. Allocated memory is still 390.1MB. Free memory was 364.4MB in the beginning and 344.9MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 41.04ms. Allocated memory is still 390.1MB. Free memory was 344.9MB in the beginning and 343.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 35.74ms. Allocated memory is still 390.1MB. Free memory was 343.0MB in the beginning and 341.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 427.24ms. Allocated memory is still 390.1MB. Free memory was 341.4MB in the beginning and 325.6MB in the end (delta: 15.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 9256.42ms. Allocated memory was 390.1MB in the beginning and 648.0MB in the end (delta: 257.9MB). Free memory was 324.6MB in the beginning and 582.4MB in the end (delta: -257.8MB). Peak memory consumption was 2.2MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 245]: Unsoundness Warning unspecified type, defaulting to int C: short [245] - GenericResultAtLocation [Line: 245]: Unsoundness Warning unspecified type, defaulting to int C: short [245] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 77 PlacesBefore, 24 PlacesAfterwards, 76 TransitionsBefore, 19 TransitionsAfterwards, 1792 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 4 ChoiceCompositions, 78 TotalNumberOfCompositions, 2074 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1641, independent: 1592, independent conditional: 0, independent unconditional: 1592, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 973, independent: 953, independent conditional: 0, independent unconditional: 953, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1641, independent: 639, independent conditional: 0, independent unconditional: 639, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 973, unknown conditional: 0, unknown unconditional: 973] , Statistics on independence cache: Total cache size (in pairs): 26, Positive cache size: 22, Positive conditional cache size: 0, Positive unconditional cache size: 22, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 693]: assertion can be violated assertion can be violated We found a FailurePath: [L694] 0 int i = 3, j = 6; [L712] 0 pthread_t id1, id2; [L713] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [\old(argc)=51, arg={0:0}, argc=51, argv={49:50}, argv={49:50}, i=3, id1={5:0}, id2={3:0}, j=6, pthread_create(&id1, ((void *)0), t1, ((void *)0))=-2] [L696] 1 int k = 0; VAL [arg={0:0}, arg={0:0}, i=3, j=6, k=0] [L714] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [\old(argc)=51, arg={0:0}, arg={0:0}, arg={0:0}, argc=51, argv={49:50}, argv={49:50}, i=3, id1={5:0}, id2={3:0}, j=6, k=0, pthread_create(&id2, ((void *)0), t2, ((void *)0))=-1] [L704] 2 int k = 0; VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=3, j=6, k=0, k=0] [L696] COND TRUE 1 k < 5 [L698] EXPR 1 j + 1 [L698] 1 i = j + 1 [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=0, k=1] [L716] EXPR 0 i >= (2*5 +6) [L716] 0 int condI = i >= (2*5 +6); VAL [\old(argc)=51, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, argc=51, argv={49:50}, argv={49:50}, condI=0, i=7, id1={5:0}, id2={3:0}, j=6, k=0, k=1] [L704] COND TRUE 2 k < 5 [L706] EXPR 2 i + 1 [L706] 2 j = i + 1 [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=8, k=1, k=1] [L696] COND TRUE 1 k < 5 [L698] EXPR 1 j + 1 [L698] 1 i = j + 1 [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=1, k=2] [L704] COND TRUE 2 k < 5 [L706] EXPR 2 i + 1 [L706] 2 j = i + 1 [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=10, k=2, k=2] [L696] COND TRUE 1 k < 5 [L698] EXPR 1 j + 1 [L698] 1 i = j + 1 [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=2, k=3] [L704] COND TRUE 2 k < 5 [L706] EXPR 2 i + 1 [L706] 2 j = i + 1 [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=12, k=3, k=3] [L696] COND TRUE 1 k < 5 [L698] EXPR 1 j + 1 [L698] 1 i = j + 1 [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=3, k=4] [L704] COND TRUE 2 k < 5 [L706] EXPR 2 i + 1 [L706] 2 j = i + 1 [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=14, k=4, k=4] [L696] COND TRUE 1 k < 5 [L698] EXPR 1 j + 1 [L698] 1 i = j + 1 [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=4, k=5] [L704] COND TRUE 2 k < 5 [L706] EXPR 2 i + 1 [L706] 2 j = i + 1 [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=16, k=5, k=5] [L719] EXPR 0 j >= (2*5 +6) [L719] 0 int condJ = j >= (2*5 +6); [L721] COND TRUE 0 condI || condJ [L722] CALL 0 reach_error() [L693] COND FALSE 0 !(0) [L693] 0 __assert_fail ("0", "triangular-2.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=16, k=5, k=5] - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 101 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: 9.1s, OverallIterations: 13, TraceHistogramMax: 5, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 859 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 859 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 100 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1278 IncrementalHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 100 mSolverCounterUnsat, 0 mSDtfsCounter, 1278 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 260 GetRequests, 81 SyntacticMatches, 4 SemanticMatches, 175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1035 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2256occurred in iteration=12, InterpolantAutomatonStates: 139, 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, 2.2s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 220 ConstructedInterpolants, 0 QuantifiedInterpolants, 912 SizeOfPredicates, 22 NumberOfNonLiveVariables, 724 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 22 InterpolantComputations, 7 PerfectInterpolantSequences, 0/54 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-25 07:53:04,635 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...