/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/pthread-ext/45_monabsex1_vs-b.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 22:18:37,494 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 22:18:37,535 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 22:18:37,543 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 22:18:37,544 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 22:18:37,577 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 22:18:37,577 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 22:18:37,577 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 22:18:37,578 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 22:18:37,581 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 22:18:37,581 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 22:18:37,581 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 22:18:37,581 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 22:18:37,582 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 22:18:37,583 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 22:18:37,583 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 22:18:37,583 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 22:18:37,583 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 22:18:37,583 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 22:18:37,583 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 22:18:37,583 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 22:18:37,584 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 22:18:37,584 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 22:18:37,585 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 22:18:37,585 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 22:18:37,585 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 22:18:37,585 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 22:18:37,585 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 22:18:37,585 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 22:18:37,585 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 22:18:37,586 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 22:18:37,586 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 22:18:37,586 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 22:18:37,587 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 22:18:37,587 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 22:18:37,587 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 22:18:37,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 22:18:37,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 22:18:37,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 22:18:37,848 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 22:18:37,848 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 22:18:37,849 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/45_monabsex1_vs-b.i [2023-08-25 22:18:38,903 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 22:18:39,107 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 22:18:39,107 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/45_monabsex1_vs-b.i [2023-08-25 22:18:39,118 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4e54b2c4/f599841e3ca94a3baa54c36706d66e7c/FLAGb5a61262e [2023-08-25 22:18:39,129 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4e54b2c4/f599841e3ca94a3baa54c36706d66e7c [2023-08-25 22:18:39,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 22:18:39,131 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 22:18:39,132 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 22:18:39,132 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 22:18:39,136 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 22:18:39,137 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 10:18:39" (1/1) ... [2023-08-25 22:18:39,138 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f4ae687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:18:39, skipping insertion in model container [2023-08-25 22:18:39,138 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 10:18:39" (1/1) ... [2023-08-25 22:18:39,171 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 22:18:39,327 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 22:18:39,333 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 22:18:39,345 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [250] [2023-08-25 22:18:39,346 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [250] [2023-08-25 22:18:39,355 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 22:18:39,379 INFO L206 MainTranslator]: Completed translation [2023-08-25 22:18:39,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:18:39 WrapperNode [2023-08-25 22:18:39,380 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 22:18:39,381 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 22:18:39,381 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 22:18:39,381 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 22:18:39,385 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:18:39" (1/1) ... [2023-08-25 22:18:39,405 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:18:39" (1/1) ... [2023-08-25 22:18:39,418 INFO L138 Inliner]: procedures = 167, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 53 [2023-08-25 22:18:39,418 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 22:18:39,419 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 22:18:39,419 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 22:18:39,419 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 22:18:39,423 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:18:39" (1/1) ... [2023-08-25 22:18:39,424 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:18:39" (1/1) ... [2023-08-25 22:18:39,425 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:18:39" (1/1) ... [2023-08-25 22:18:39,425 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:18:39" (1/1) ... [2023-08-25 22:18:39,427 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:18:39" (1/1) ... [2023-08-25 22:18:39,431 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:18:39" (1/1) ... [2023-08-25 22:18:39,438 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:18:39" (1/1) ... [2023-08-25 22:18:39,439 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:18:39" (1/1) ... [2023-08-25 22:18:39,443 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 22:18:39,444 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 22:18:39,444 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 22:18:39,444 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 22:18:39,444 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:18:39" (1/1) ... [2023-08-25 22:18:39,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 22:18:39,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 22:18:39,481 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 22:18:39,499 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 22:18:39,510 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-25 22:18:39,510 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-25 22:18:39,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 22:18:39,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 22:18:39,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 22:18:39,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 22:18:39,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 22:18:39,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 22:18:39,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 22:18:39,512 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 22:18:39,622 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 22:18:39,626 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 22:18:39,729 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 22:18:39,734 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 22:18:39,734 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-25 22:18:39,735 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 10:18:39 BoogieIcfgContainer [2023-08-25 22:18:39,735 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 22:18:39,737 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 22:18:39,737 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 22:18:39,740 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 22:18:39,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 10:18:39" (1/3) ... [2023-08-25 22:18:39,741 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11dbeae4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 10:18:39, skipping insertion in model container [2023-08-25 22:18:39,741 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:18:39" (2/3) ... [2023-08-25 22:18:39,741 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11dbeae4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 10:18:39, skipping insertion in model container [2023-08-25 22:18:39,741 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 10:18:39" (3/3) ... [2023-08-25 22:18:39,742 INFO L112 eAbstractionObserver]: Analyzing ICFG 45_monabsex1_vs-b.i [2023-08-25 22:18:39,760 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 22:18:39,760 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-25 22:18:39,760 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 22:18:39,792 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 22:18:39,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 60 transitions, 125 flow [2023-08-25 22:18:39,842 INFO L124 PetriNetUnfolderBase]: 4/70 cut-off events. [2023-08-25 22:18:39,842 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 22:18:39,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 70 events. 4/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 38. Up to 4 conditions per place. [2023-08-25 22:18:39,846 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 60 transitions, 125 flow [2023-08-25 22:18:39,849 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 60 transitions, 125 flow [2023-08-25 22:18:39,851 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 22:18:39,858 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 60 transitions, 125 flow [2023-08-25 22:18:39,861 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 60 transitions, 125 flow [2023-08-25 22:18:39,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 60 transitions, 125 flow [2023-08-25 22:18:39,891 INFO L124 PetriNetUnfolderBase]: 4/70 cut-off events. [2023-08-25 22:18:39,891 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 22:18:39,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 70 events. 4/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 38. Up to 4 conditions per place. [2023-08-25 22:18:39,893 INFO L119 LiptonReduction]: Number of co-enabled transitions 676 [2023-08-25 22:18:40,990 INFO L134 LiptonReduction]: Checked pairs total: 579 [2023-08-25 22:18:40,990 INFO L136 LiptonReduction]: Total number of compositions: 65 [2023-08-25 22:18:40,999 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 22:18:41,004 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;@34a89c7c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 22:18:41,004 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-25 22:18:41,005 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 22:18:41,005 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 22:18:41,005 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 22:18:41,005 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:18:41,005 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 22:18:41,006 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONASSERT, thr1Err2ASSERT_VIOLATIONASSERT, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2023-08-25 22:18:41,009 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:18:41,009 INFO L85 PathProgramCache]: Analyzing trace with hash 256, now seen corresponding path program 1 times [2023-08-25 22:18:41,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:18:41,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294206409] [2023-08-25 22:18:41,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:18:41,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:18:41,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:18:41,087 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 22:18:41,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 22:18:41,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294206409] [2023-08-25 22:18:41,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294206409] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 22:18:41,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 22:18:41,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 22:18:41,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639159406] [2023-08-25 22:18:41,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 22:18:41,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 22:18:41,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 22:18:41,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 22:18:41,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 22:18:41,128 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 125 [2023-08-25 22:18:41,131 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 11 transitions, 27 flow. Second operand has 2 states, 2 states have (on average 54.5) internal successors, (109), 2 states have internal predecessors, (109), 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 22:18:41,131 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 22:18:41,131 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 125 [2023-08-25 22:18:41,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 22:18:41,145 INFO L124 PetriNetUnfolderBase]: 2/11 cut-off events. [2023-08-25 22:18:41,145 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 22:18:41,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 11 events. 2/11 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 9 event pairs, 2 based on Foata normal form. 0/11 useless extension candidates. Maximal degree in co-relation 14. Up to 11 conditions per place. [2023-08-25 22:18:41,146 INFO L140 encePairwiseOnDemand]: 120/125 looper letters, 0 selfloop transitions, 0 changer transitions 6/6 dead transitions. [2023-08-25 22:18:41,146 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 10 places, 6 transitions, 27 flow [2023-08-25 22:18:41,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 22:18:41,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 22:18:41,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 118 transitions. [2023-08-25 22:18:41,154 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.472 [2023-08-25 22:18:41,154 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 118 transitions. [2023-08-25 22:18:41,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 118 transitions. [2023-08-25 22:18:41,155 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 22:18:41,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 118 transitions. [2023-08-25 22:18:41,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 59.0) internal successors, (118), 2 states have internal predecessors, (118), 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 22:18:41,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 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 22:18:41,161 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 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 22:18:41,162 INFO L175 Difference]: Start difference. First operand has 14 places, 11 transitions, 27 flow. Second operand 2 states and 118 transitions. [2023-08-25 22:18:41,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 10 places, 6 transitions, 27 flow [2023-08-25 22:18:41,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 6 transitions, 27 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 22:18:41,164 INFO L231 Difference]: Finished difference. Result has 10 places, 0 transitions, 0 flow [2023-08-25 22:18:41,165 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=17, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=0, PETRI_PLACES=10, PETRI_TRANSITIONS=0} [2023-08-25 22:18:41,168 INFO L281 CegarLoopForPetriNet]: 14 programPoint places, -4 predicate places. [2023-08-25 22:18:41,168 INFO L495 AbstractCegarLoop]: Abstraction has has 10 places, 0 transitions, 0 flow [2023-08-25 22:18:41,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 54.5) internal successors, (109), 2 states have internal predecessors, (109), 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 22:18:41,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2023-08-25 22:18:41,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONASSERT (5 of 7 remaining) [2023-08-25 22:18:41,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONASSERT (4 of 7 remaining) [2023-08-25 22:18:41,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2023-08-25 22:18:41,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-08-25 22:18:41,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-08-25 22:18:41,171 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-08-25 22:18:41,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 22:18:41,171 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 22:18:41,173 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (1/2) [2023-08-25 22:18:41,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 60 transitions, 125 flow [2023-08-25 22:18:41,184 INFO L124 PetriNetUnfolderBase]: 4/70 cut-off events. [2023-08-25 22:18:41,184 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 22:18:41,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 70 events. 4/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 38. Up to 4 conditions per place. [2023-08-25 22:18:41,184 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 60 transitions, 125 flow [2023-08-25 22:18:41,185 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 59 transitions, 123 flow [2023-08-25 22:18:41,185 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 22:18:41,185 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 59 transitions, 123 flow [2023-08-25 22:18:41,185 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 59 transitions, 123 flow [2023-08-25 22:18:41,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 59 places, 59 transitions, 123 flow [2023-08-25 22:18:41,192 INFO L124 PetriNetUnfolderBase]: 4/69 cut-off events. [2023-08-25 22:18:41,192 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 22:18:41,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 69 events. 4/69 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 58 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 38. Up to 4 conditions per place. [2023-08-25 22:18:41,193 INFO L119 LiptonReduction]: Number of co-enabled transitions 676 [2023-08-25 22:18:42,094 INFO L134 LiptonReduction]: Checked pairs total: 631 [2023-08-25 22:18:42,094 INFO L136 LiptonReduction]: Total number of compositions: 62 [2023-08-25 22:18:42,096 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 22:18:42,096 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;@34a89c7c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 22:18:42,096 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 22:18:42,098 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 22:18:42,098 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2023-08-25 22:18:42,098 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 22:18:42,098 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:18:42,098 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-25 22:18:42,099 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 22:18:42,099 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:18:42,099 INFO L85 PathProgramCache]: Analyzing trace with hash 824065437, now seen corresponding path program 1 times [2023-08-25 22:18:42,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:18:42,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933842757] [2023-08-25 22:18:42,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:18:42,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:18:42,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 22:18:42,129 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 22:18:42,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 22:18:42,152 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 22:18:42,152 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 22:18:42,156 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 22:18:42,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 22:18:42,156 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 22:18:42,157 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2023-08-25 22:18:42,157 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 22:18:42,158 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-25 22:18:42,166 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 22:18:42,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 87 transitions, 186 flow [2023-08-25 22:18:42,178 INFO L124 PetriNetUnfolderBase]: 7/109 cut-off events. [2023-08-25 22:18:42,179 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 22:18:42,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 109 events. 7/109 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 176 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 71. Up to 6 conditions per place. [2023-08-25 22:18:42,180 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 87 transitions, 186 flow [2023-08-25 22:18:42,180 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 87 transitions, 186 flow [2023-08-25 22:18:42,180 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 22:18:42,180 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 87 transitions, 186 flow [2023-08-25 22:18:42,181 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 87 transitions, 186 flow [2023-08-25 22:18:42,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 87 transitions, 186 flow [2023-08-25 22:18:42,190 INFO L124 PetriNetUnfolderBase]: 7/109 cut-off events. [2023-08-25 22:18:42,190 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 22:18:42,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 109 events. 7/109 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 176 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 71. Up to 6 conditions per place. [2023-08-25 22:18:42,193 INFO L119 LiptonReduction]: Number of co-enabled transitions 2756 [2023-08-25 22:18:43,091 INFO L134 LiptonReduction]: Checked pairs total: 8217 [2023-08-25 22:18:43,091 INFO L136 LiptonReduction]: Total number of compositions: 84 [2023-08-25 22:18:43,093 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 22:18:43,093 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;@34a89c7c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 22:18:43,094 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-08-25 22:18:43,094 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 22:18:43,094 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 22:18:43,094 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 22:18:43,094 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:18:43,094 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 22:18:43,095 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONASSERT, thr1Err2ASSERT_VIOLATIONASSERT (and 6 more)] === [2023-08-25 22:18:43,095 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:18:43,095 INFO L85 PathProgramCache]: Analyzing trace with hash 513, now seen corresponding path program 1 times [2023-08-25 22:18:43,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:18:43,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484982580] [2023-08-25 22:18:43,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:18:43,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:18:43,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:18:43,117 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 22:18:43,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 22:18:43,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484982580] [2023-08-25 22:18:43,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484982580] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 22:18:43,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 22:18:43,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 22:18:43,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407795197] [2023-08-25 22:18:43,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 22:18:43,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 22:18:43,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 22:18:43,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 22:18:43,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 22:18:43,120 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 171 [2023-08-25 22:18:43,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 29 transitions, 70 flow. Second operand has 2 states, 2 states have (on average 77.5) internal successors, (155), 2 states have internal predecessors, (155), 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 22:18:43,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 22:18:43,120 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 171 [2023-08-25 22:18:43,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 22:18:43,187 INFO L124 PetriNetUnfolderBase]: 77/216 cut-off events. [2023-08-25 22:18:43,187 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2023-08-25 22:18:43,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 396 conditions, 216 events. 77/216 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1132 event pairs, 77 based on Foata normal form. 14/176 useless extension candidates. Maximal degree in co-relation 93. Up to 150 conditions per place. [2023-08-25 22:18:43,189 INFO L140 encePairwiseOnDemand]: 167/171 looper letters, 13 selfloop transitions, 0 changer transitions 0/25 dead transitions. [2023-08-25 22:18:43,189 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 25 transitions, 88 flow [2023-08-25 22:18:43,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 22:18:43,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 22:18:43,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 171 transitions. [2023-08-25 22:18:43,198 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2023-08-25 22:18:43,198 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 171 transitions. [2023-08-25 22:18:43,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 171 transitions. [2023-08-25 22:18:43,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 22:18:43,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 171 transitions. [2023-08-25 22:18:43,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 85.5) internal successors, (171), 2 states have internal predecessors, (171), 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 22:18:43,201 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 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 22:18:43,201 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 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 22:18:43,201 INFO L175 Difference]: Start difference. First operand has 32 places, 29 transitions, 70 flow. Second operand 2 states and 171 transitions. [2023-08-25 22:18:43,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 25 transitions, 88 flow [2023-08-25 22:18:43,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 25 transitions, 86 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-08-25 22:18:43,202 INFO L231 Difference]: Finished difference. Result has 31 places, 25 transitions, 60 flow [2023-08-25 22:18:43,202 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=60, PETRI_PLACES=31, PETRI_TRANSITIONS=25} [2023-08-25 22:18:43,203 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -1 predicate places. [2023-08-25 22:18:43,203 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 25 transitions, 60 flow [2023-08-25 22:18:43,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 77.5) internal successors, (155), 2 states have internal predecessors, (155), 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 22:18:43,203 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:18:43,203 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 22:18:43,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 22:18:43,204 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONASSERT, thr1Err2ASSERT_VIOLATIONASSERT (and 6 more)] === [2023-08-25 22:18:43,204 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:18:43,204 INFO L85 PathProgramCache]: Analyzing trace with hash -2031744527, now seen corresponding path program 1 times [2023-08-25 22:18:43,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:18:43,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547350470] [2023-08-25 22:18:43,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:18:43,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:18:43,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:18:43,262 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 22:18:43,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 22:18:43,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547350470] [2023-08-25 22:18:43,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547350470] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 22:18:43,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 22:18:43,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 22:18:43,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377358245] [2023-08-25 22:18:43,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 22:18:43,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 22:18:43,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 22:18:43,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 22:18:43,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 22:18:43,273 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 171 [2023-08-25 22:18:43,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 25 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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 22:18:43,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 22:18:43,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 171 [2023-08-25 22:18:43,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 22:18:43,365 INFO L124 PetriNetUnfolderBase]: 293/536 cut-off events. [2023-08-25 22:18:43,365 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2023-08-25 22:18:43,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1098 conditions, 536 events. 293/536 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2771 event pairs, 247 based on Foata normal form. 0/405 useless extension candidates. Maximal degree in co-relation 1093. Up to 478 conditions per place. [2023-08-25 22:18:43,368 INFO L140 encePairwiseOnDemand]: 166/171 looper letters, 30 selfloop transitions, 4 changer transitions 0/37 dead transitions. [2023-08-25 22:18:43,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 37 transitions, 157 flow [2023-08-25 22:18:43,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 22:18:43,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 22:18:43,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 215 transitions. [2023-08-25 22:18:43,376 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4191033138401559 [2023-08-25 22:18:43,376 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 215 transitions. [2023-08-25 22:18:43,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 215 transitions. [2023-08-25 22:18:43,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 22:18:43,380 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 215 transitions. [2023-08-25 22:18:43,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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 22:18:43,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 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 22:18:43,383 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 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 22:18:43,384 INFO L175 Difference]: Start difference. First operand has 31 places, 25 transitions, 60 flow. Second operand 3 states and 215 transitions. [2023-08-25 22:18:43,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 37 transitions, 157 flow [2023-08-25 22:18:43,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 37 transitions, 157 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 22:18:43,386 INFO L231 Difference]: Finished difference. Result has 34 places, 28 transitions, 86 flow [2023-08-25 22:18:43,386 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=34, PETRI_TRANSITIONS=28} [2023-08-25 22:18:43,387 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 2 predicate places. [2023-08-25 22:18:43,389 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 28 transitions, 86 flow [2023-08-25 22:18:43,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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 22:18:43,391 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:18:43,391 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 22:18:43,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 22:18:43,391 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONASSERT, thr1Err2ASSERT_VIOLATIONASSERT (and 6 more)] === [2023-08-25 22:18:43,391 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:18:43,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1703666700, now seen corresponding path program 1 times [2023-08-25 22:18:43,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:18:43,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88672554] [2023-08-25 22:18:43,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:18:43,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:18:43,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:18:43,425 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 22:18:43,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 22:18:43,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88672554] [2023-08-25 22:18:43,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88672554] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 22:18:43,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 22:18:43,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 22:18:43,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177005901] [2023-08-25 22:18:43,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 22:18:43,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 22:18:43,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 22:18:43,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 22:18:43,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 22:18:43,429 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 171 [2023-08-25 22:18:43,429 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 28 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 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 22:18:43,429 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 22:18:43,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 171 [2023-08-25 22:18:43,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 22:18:43,500 INFO L124 PetriNetUnfolderBase]: 301/569 cut-off events. [2023-08-25 22:18:43,500 INFO L125 PetriNetUnfolderBase]: For 114/114 co-relation queries the response was YES. [2023-08-25 22:18:43,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1315 conditions, 569 events. 301/569 cut-off events. For 114/114 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3148 event pairs, 118 based on Foata normal form. 0/456 useless extension candidates. Maximal degree in co-relation 1308. Up to 329 conditions per place. [2023-08-25 22:18:43,503 INFO L140 encePairwiseOnDemand]: 163/171 looper letters, 37 selfloop transitions, 7 changer transitions 0/47 dead transitions. [2023-08-25 22:18:43,503 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 47 transitions, 231 flow [2023-08-25 22:18:43,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 22:18:43,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 22:18:43,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 228 transitions. [2023-08-25 22:18:43,506 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2023-08-25 22:18:43,506 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 228 transitions. [2023-08-25 22:18:43,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 228 transitions. [2023-08-25 22:18:43,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 22:18:43,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 228 transitions. [2023-08-25 22:18:43,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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 22:18:43,508 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 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 22:18:43,508 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 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 22:18:43,508 INFO L175 Difference]: Start difference. First operand has 34 places, 28 transitions, 86 flow. Second operand 3 states and 228 transitions. [2023-08-25 22:18:43,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 47 transitions, 231 flow [2023-08-25 22:18:43,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 47 transitions, 225 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 22:18:43,510 INFO L231 Difference]: Finished difference. Result has 37 places, 34 transitions, 144 flow [2023-08-25 22:18:43,510 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=144, PETRI_PLACES=37, PETRI_TRANSITIONS=34} [2023-08-25 22:18:43,511 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 5 predicate places. [2023-08-25 22:18:43,511 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 34 transitions, 144 flow [2023-08-25 22:18:43,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 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 22:18:43,511 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:18:43,511 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 22:18:43,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 22:18:43,511 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONASSERT, thr1Err2ASSERT_VIOLATIONASSERT (and 6 more)] === [2023-08-25 22:18:43,512 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:18:43,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1274060637, now seen corresponding path program 1 times [2023-08-25 22:18:43,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:18:43,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904086306] [2023-08-25 22:18:43,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:18:43,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:18:43,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:18:43,535 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 22:18:43,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 22:18:43,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904086306] [2023-08-25 22:18:43,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904086306] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 22:18:43,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 22:18:43,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 22:18:43,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072366185] [2023-08-25 22:18:43,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 22:18:43,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 22:18:43,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 22:18:43,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 22:18:43,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 22:18:43,537 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 171 [2023-08-25 22:18:43,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 34 transitions, 144 flow. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 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 22:18:43,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 22:18:43,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 171 [2023-08-25 22:18:43,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 22:18:43,590 INFO L124 PetriNetUnfolderBase]: 231/568 cut-off events. [2023-08-25 22:18:43,590 INFO L125 PetriNetUnfolderBase]: For 436/462 co-relation queries the response was YES. [2023-08-25 22:18:43,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1428 conditions, 568 events. 231/568 cut-off events. For 436/462 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 3743 event pairs, 80 based on Foata normal form. 12/495 useless extension candidates. Maximal degree in co-relation 1420. Up to 197 conditions per place. [2023-08-25 22:18:43,593 INFO L140 encePairwiseOnDemand]: 167/171 looper letters, 29 selfloop transitions, 3 changer transitions 0/48 dead transitions. [2023-08-25 22:18:43,593 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 48 transitions, 273 flow [2023-08-25 22:18:43,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 22:18:43,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 22:18:43,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 224 transitions. [2023-08-25 22:18:43,594 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43664717348927873 [2023-08-25 22:18:43,594 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 224 transitions. [2023-08-25 22:18:43,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 224 transitions. [2023-08-25 22:18:43,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 22:18:43,595 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 224 transitions. [2023-08-25 22:18:43,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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 22:18:43,596 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 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 22:18:43,596 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 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 22:18:43,596 INFO L175 Difference]: Start difference. First operand has 37 places, 34 transitions, 144 flow. Second operand 3 states and 224 transitions. [2023-08-25 22:18:43,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 48 transitions, 273 flow [2023-08-25 22:18:43,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 48 transitions, 253 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 22:18:43,599 INFO L231 Difference]: Finished difference. Result has 39 places, 36 transitions, 152 flow [2023-08-25 22:18:43,599 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=39, PETRI_TRANSITIONS=36} [2023-08-25 22:18:43,599 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 7 predicate places. [2023-08-25 22:18:43,599 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 36 transitions, 152 flow [2023-08-25 22:18:43,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 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 22:18:43,600 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:18:43,600 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 22:18:43,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 22:18:43,600 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONASSERT, thr1Err2ASSERT_VIOLATIONASSERT (and 6 more)] === [2023-08-25 22:18:43,600 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:18:43,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1527601670, now seen corresponding path program 1 times [2023-08-25 22:18:43,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:18:43,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059740788] [2023-08-25 22:18:43,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:18:43,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:18:43,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:18:43,625 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 22:18:43,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 22:18:43,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059740788] [2023-08-25 22:18:43,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059740788] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 22:18:43,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 22:18:43,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 22:18:43,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089430168] [2023-08-25 22:18:43,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 22:18:43,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 22:18:43,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 22:18:43,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 22:18:43,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 22:18:43,626 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 171 [2023-08-25 22:18:43,627 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 36 transitions, 152 flow. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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 22:18:43,627 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 22:18:43,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 171 [2023-08-25 22:18:43,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 22:18:43,720 INFO L124 PetriNetUnfolderBase]: 504/940 cut-off events. [2023-08-25 22:18:43,720 INFO L125 PetriNetUnfolderBase]: For 458/458 co-relation queries the response was YES. [2023-08-25 22:18:43,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2612 conditions, 940 events. 504/940 cut-off events. For 458/458 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 5860 event pairs, 262 based on Foata normal form. 0/826 useless extension candidates. Maximal degree in co-relation 2603. Up to 719 conditions per place. [2023-08-25 22:18:43,724 INFO L140 encePairwiseOnDemand]: 165/171 looper letters, 39 selfloop transitions, 9 changer transitions 0/51 dead transitions. [2023-08-25 22:18:43,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 51 transitions, 316 flow [2023-08-25 22:18:43,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 22:18:43,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 22:18:43,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 214 transitions. [2023-08-25 22:18:43,728 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4171539961013645 [2023-08-25 22:18:43,728 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 214 transitions. [2023-08-25 22:18:43,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 214 transitions. [2023-08-25 22:18:43,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 22:18:43,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 214 transitions. [2023-08-25 22:18:43,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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 22:18:43,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 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 22:18:43,730 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 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 22:18:43,730 INFO L175 Difference]: Start difference. First operand has 39 places, 36 transitions, 152 flow. Second operand 3 states and 214 transitions. [2023-08-25 22:18:43,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 51 transitions, 316 flow [2023-08-25 22:18:43,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 51 transitions, 306 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 22:18:43,732 INFO L231 Difference]: Finished difference. Result has 41 places, 42 transitions, 226 flow [2023-08-25 22:18:43,732 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=226, PETRI_PLACES=41, PETRI_TRANSITIONS=42} [2023-08-25 22:18:43,732 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 9 predicate places. [2023-08-25 22:18:43,732 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 42 transitions, 226 flow [2023-08-25 22:18:43,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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 22:18:43,733 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:18:43,733 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 22:18:43,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 22:18:43,733 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONASSERT, thr1Err2ASSERT_VIOLATIONASSERT (and 6 more)] === [2023-08-25 22:18:43,733 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:18:43,733 INFO L85 PathProgramCache]: Analyzing trace with hash -851755710, now seen corresponding path program 1 times [2023-08-25 22:18:43,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:18:43,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640537937] [2023-08-25 22:18:43,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:18:43,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:18:43,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 22:18:43,742 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 22:18:43,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 22:18:43,749 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 22:18:43,750 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 22:18:43,750 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (9 of 10 remaining) [2023-08-25 22:18:43,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2023-08-25 22:18:43,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONASSERT (7 of 10 remaining) [2023-08-25 22:18:43,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONASSERT (6 of 10 remaining) [2023-08-25 22:18:43,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONASSERT (5 of 10 remaining) [2023-08-25 22:18:43,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (4 of 10 remaining) [2023-08-25 22:18:43,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining) [2023-08-25 22:18:43,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2023-08-25 22:18:43,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2023-08-25 22:18:43,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2023-08-25 22:18:43,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 22:18:43,751 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-08-25 22:18:43,751 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN (1/2) [2023-08-25 22:18:43,753 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2023-08-25 22:18:43,753 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 22:18:43,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 10:18:43 BasicIcfg [2023-08-25 22:18:43,772 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 22:18:43,773 INFO L158 Benchmark]: Toolchain (without parser) took 4641.50ms. Allocated memory was 375.4MB in the beginning and 450.9MB in the end (delta: 75.5MB). Free memory was 350.3MB in the beginning and 381.3MB in the end (delta: -31.0MB). Peak memory consumption was 45.1MB. Max. memory is 16.0GB. [2023-08-25 22:18:43,773 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 375.4MB. Free memory is still 351.7MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 22:18:43,773 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.34ms. Allocated memory is still 375.4MB. Free memory was 350.3MB in the beginning and 331.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 22:18:43,773 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.76ms. Allocated memory is still 375.4MB. Free memory was 331.4MB in the beginning and 329.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 22:18:43,773 INFO L158 Benchmark]: Boogie Preprocessor took 24.74ms. Allocated memory is still 375.4MB. Free memory was 329.3MB in the beginning and 328.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 22:18:43,773 INFO L158 Benchmark]: RCFGBuilder took 291.66ms. Allocated memory is still 375.4MB. Free memory was 328.2MB in the beginning and 316.8MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-25 22:18:43,774 INFO L158 Benchmark]: TraceAbstraction took 4035.22ms. Allocated memory was 375.4MB in the beginning and 450.9MB in the end (delta: 75.5MB). Free memory was 316.2MB in the beginning and 381.3MB in the end (delta: -65.1MB). Peak memory consumption was 11.5MB. Max. memory is 16.0GB. [2023-08-25 22:18:43,775 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 375.4MB. Free memory is still 351.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 248.34ms. Allocated memory is still 375.4MB. Free memory was 350.3MB in the beginning and 331.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 37.76ms. Allocated memory is still 375.4MB. Free memory was 331.4MB in the beginning and 329.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 24.74ms. Allocated memory is still 375.4MB. Free memory was 329.3MB in the beginning and 328.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 291.66ms. Allocated memory is still 375.4MB. Free memory was 328.2MB in the beginning and 316.8MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 4035.22ms. Allocated memory was 375.4MB in the beginning and 450.9MB in the end (delta: 75.5MB). Free memory was 316.2MB in the beginning and 381.3MB in the end (delta: -65.1MB). Peak memory consumption was 11.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 250]: Unsoundness Warning unspecified type, defaulting to int C: short [250] - GenericResultAtLocation [Line: 250]: Unsoundness Warning unspecified type, defaulting to int C: short [250] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.1s, 60 PlacesBefore, 14 PlacesAfterwards, 60 TransitionsBefore, 11 TransitionsAfterwards, 676 CoEnabledTransitionPairs, 5 FixpointIterations, 22 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 3 ChoiceCompositions, 65 TotalNumberOfCompositions, 579 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 579, independent: 579, independent conditional: 0, independent unconditional: 579, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 360, independent: 360, independent conditional: 0, independent unconditional: 360, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 579, independent: 219, independent conditional: 0, independent unconditional: 219, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 360, unknown conditional: 0, unknown unconditional: 360] , Statistics on independence cache: Total cache size (in pairs): 4, Positive cache size: 4, Positive conditional cache size: 0, Positive unconditional cache size: 4, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.9s, 59 PlacesBefore, 13 PlacesAfterwards, 59 TransitionsBefore, 10 TransitionsAfterwards, 676 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 3 ChoiceCompositions, 62 TotalNumberOfCompositions, 631 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 631, independent: 631, independent conditional: 0, independent unconditional: 631, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 359, independent: 359, independent conditional: 0, independent unconditional: 359, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 631, independent: 272, independent conditional: 0, independent unconditional: 272, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 359, unknown conditional: 0, unknown unconditional: 359] , Statistics on independence cache: Total cache size (in pairs): 4, Positive cache size: 4, Positive conditional cache size: 0, Positive unconditional cache size: 4, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.9s, 87 PlacesBefore, 32 PlacesAfterwards, 87 TransitionsBefore, 29 TransitionsAfterwards, 2756 CoEnabledTransitionPairs, 7 FixpointIterations, 21 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 3 ChoiceCompositions, 84 TotalNumberOfCompositions, 8217 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3786, independent: 3514, independent conditional: 0, independent unconditional: 3514, dependent: 272, dependent conditional: 0, dependent unconditional: 272, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1672, independent: 1628, independent conditional: 0, independent unconditional: 1628, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3786, independent: 1886, independent conditional: 0, independent unconditional: 1886, dependent: 228, dependent conditional: 0, dependent unconditional: 228, unknown: 1672, unknown conditional: 0, unknown unconditional: 1672] , Statistics on independence cache: Total cache size (in pairs): 115, Positive cache size: 97, Positive conditional cache size: 0, Positive unconditional cache size: 97, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 690]: Data race detected Data race detected The following path leads to a data race: [L685] 0 int s; [L696] 0 s = __VERIFIER_nondet_int() [L697] 0 pthread_t t; VAL [s=0, t={3:0}] [L698] COND TRUE 0 1 [L698] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [pthread_create(&t, 0, thr1, 0)=-2, s=0, t={3:0}] [L698] COND TRUE 0 1 [L698] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [pthread_create(&t, 0, thr1, 0)=-1, s=0, t={3:0}] [L688] 2 int l = __VERIFIER_nondet_int(); [L689] 2 l = 4 [L690] 2 s = l VAL [arg={0:0}, arg={0:0}, l=4, s=4] [L688] 1 int l = __VERIFIER_nondet_int(); [L689] 1 l = 4 [L690] 1 s = l VAL [arg={0:0}, arg={0:0}, l=4, s = l=49, s=4] Now there is a data race on ~s~0 between C: s = __VERIFIER_nondet_int() [696] and C: s = l [690] - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 13]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 691]: 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 3 procedures, 83 locations, 8 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: 1.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 1 NumberOfCodeBlocks, 1 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 108 locations, 11 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: 1.6s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 39 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 179 IncrementalHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 26 mSDtfsCounter, 179 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred in iteration=5, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 45 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 2/2 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 - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 1 thread instances CFG has 3 procedures, 83 locations, 8 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: 1.0s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.9s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-25 22:18:43,824 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...