/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_04-fld_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 03:16:52,026 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 03:16:52,103 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 03:16:52,107 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 03:16:52,107 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 03:16:52,138 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 03:16:52,139 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 03:16:52,140 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 03:16:52,140 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 03:16:52,144 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 03:16:52,144 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 03:16:52,144 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 03:16:52,145 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 03:16:52,146 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 03:16:52,146 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 03:16:52,146 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 03:16:52,146 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 03:16:52,147 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 03:16:52,147 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 03:16:52,147 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 03:16:52,147 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 03:16:52,148 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 03:16:52,148 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 03:16:52,149 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 03:16:52,149 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 03:16:52,149 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 03:16:52,150 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 03:16:52,150 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:16:52,150 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 03:16:52,150 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 03:16:52,151 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 03:16:52,151 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 03:16:52,152 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 03:16:52,152 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 03:16:52,152 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 03:16:52,152 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 03:16:52,467 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 03:16:52,486 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 03:16:52,488 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 03:16:52,489 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 03:16:52,491 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 03:16:52,492 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_04-fld_nr.i [2023-08-25 03:16:53,681 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 03:16:53,909 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 03:16:53,909 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/05-lval_ls_04-fld_nr.i [2023-08-25 03:16:53,937 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e399b3bbc/3afa8dee8a0e4ac3b87052078f3de728/FLAG18be16815 [2023-08-25 03:16:53,948 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e399b3bbc/3afa8dee8a0e4ac3b87052078f3de728 [2023-08-25 03:16:53,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 03:16:53,951 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 03:16:53,952 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 03:16:53,952 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 03:16:53,954 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 03:16:53,954 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:16:53" (1/1) ... [2023-08-25 03:16:53,955 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75013a25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:53, skipping insertion in model container [2023-08-25 03:16:53,955 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:16:53" (1/1) ... [2023-08-25 03:16:53,997 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 03:16:54,293 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:16:54,304 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 03:16:54,333 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 03:16:54,334 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 03:16:54,353 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:16:54,396 INFO L206 MainTranslator]: Completed translation [2023-08-25 03:16:54,396 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:54 WrapperNode [2023-08-25 03:16:54,396 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 03:16:54,397 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 03:16:54,398 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 03:16:54,398 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 03:16:54,403 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:54" (1/1) ... [2023-08-25 03:16:54,428 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:54" (1/1) ... [2023-08-25 03:16:54,449 INFO L138 Inliner]: procedures = 162, calls = 20, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 45 [2023-08-25 03:16:54,449 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 03:16:54,450 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 03:16:54,451 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 03:16:54,451 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 03:16:54,458 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:54" (1/1) ... [2023-08-25 03:16:54,458 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:54" (1/1) ... [2023-08-25 03:16:54,463 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:54" (1/1) ... [2023-08-25 03:16:54,464 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:54" (1/1) ... [2023-08-25 03:16:54,479 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:54" (1/1) ... [2023-08-25 03:16:54,480 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:54" (1/1) ... [2023-08-25 03:16:54,481 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:54" (1/1) ... [2023-08-25 03:16:54,482 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:54" (1/1) ... [2023-08-25 03:16:54,484 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 03:16:54,488 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 03:16:54,488 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 03:16:54,488 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 03:16:54,489 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:54" (1/1) ... [2023-08-25 03:16:54,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:16:54,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:16:54,522 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 03:16:54,547 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 03:16:54,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 03:16:54,560 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 03:16:54,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 03:16:54,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 03:16:54,560 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 03:16:54,561 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 03:16:54,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 03:16:54,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 03:16:54,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 03:16:54,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 03:16:54,562 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 03:16:54,689 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 03:16:54,691 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 03:16:54,852 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 03:16:54,857 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 03:16:54,857 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 03:16:54,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:16:54 BoogieIcfgContainer [2023-08-25 03:16:54,859 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 03:16:54,861 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 03:16:54,861 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 03:16:54,863 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 03:16:54,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 03:16:53" (1/3) ... [2023-08-25 03:16:54,864 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cb0bf83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:16:54, skipping insertion in model container [2023-08-25 03:16:54,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:54" (2/3) ... [2023-08-25 03:16:54,869 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cb0bf83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:16:54, skipping insertion in model container [2023-08-25 03:16:54,869 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:16:54" (3/3) ... [2023-08-25 03:16:54,870 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_04-fld_nr.i [2023-08-25 03:16:54,884 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 03:16:54,885 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-25 03:16:54,885 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 03:16:54,947 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 03:16:54,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 64 transitions, 133 flow [2023-08-25 03:16:55,034 INFO L124 PetriNetUnfolderBase]: 0/63 cut-off events. [2023-08-25 03:16:55,035 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:16:55,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 63 events. 0/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 41 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-25 03:16:55,038 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 64 transitions, 133 flow [2023-08-25 03:16:55,043 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 63 transitions, 129 flow [2023-08-25 03:16:55,048 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 03:16:55,061 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 63 transitions, 129 flow [2023-08-25 03:16:55,064 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 63 transitions, 129 flow [2023-08-25 03:16:55,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 67 places, 63 transitions, 129 flow [2023-08-25 03:16:55,105 INFO L124 PetriNetUnfolderBase]: 0/63 cut-off events. [2023-08-25 03:16:55,105 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:16:55,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 63 events. 0/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 41 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-25 03:16:55,106 INFO L119 LiptonReduction]: Number of co-enabled transitions 714 [2023-08-25 03:16:56,740 INFO L134 LiptonReduction]: Checked pairs total: 2927 [2023-08-25 03:16:56,740 INFO L136 LiptonReduction]: Total number of compositions: 41 [2023-08-25 03:16:56,751 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 03:16:56,756 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;@75883e07, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 03:16:56,757 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-25 03:16:56,759 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 03:16:56,759 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-08-25 03:16:56,759 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:16:56,760 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:16:56,760 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-25 03:16:56,761 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:16:56,765 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:16:56,765 INFO L85 PathProgramCache]: Analyzing trace with hash 205828445, now seen corresponding path program 1 times [2023-08-25 03:16:56,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:16:56,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435664249] [2023-08-25 03:16:56,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:16:56,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:16:56,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:16:56,962 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 03:16:56,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:16:56,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435664249] [2023-08-25 03:16:56,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435664249] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:16:56,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:16:56,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:16:56,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485521162] [2023-08-25 03:16:56,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:16:56,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:16:56,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:16:57,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:16:57,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:16:57,006 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 105 [2023-08-25 03:16:57,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 22 transitions, 47 flow. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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 03:16:57,009 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:16:57,009 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 105 [2023-08-25 03:16:57,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:16:57,095 INFO L124 PetriNetUnfolderBase]: 67/184 cut-off events. [2023-08-25 03:16:57,095 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:16:57,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 345 conditions, 184 events. 67/184 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 803 event pairs, 33 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 336. Up to 101 conditions per place. [2023-08-25 03:16:57,099 INFO L140 encePairwiseOnDemand]: 97/105 looper letters, 26 selfloop transitions, 6 changer transitions 0/36 dead transitions. [2023-08-25 03:16:57,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 36 transitions, 139 flow [2023-08-25 03:16:57,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:16:57,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:16:57,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 187 transitions. [2023-08-25 03:16:57,110 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5936507936507937 [2023-08-25 03:16:57,110 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 187 transitions. [2023-08-25 03:16:57,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 187 transitions. [2023-08-25 03:16:57,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:16:57,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 187 transitions. [2023-08-25 03:16:57,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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 03:16:57,119 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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 03:16:57,120 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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 03:16:57,121 INFO L175 Difference]: Start difference. First operand has 26 places, 22 transitions, 47 flow. Second operand 3 states and 187 transitions. [2023-08-25 03:16:57,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 36 transitions, 139 flow [2023-08-25 03:16:57,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 36 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 03:16:57,125 INFO L231 Difference]: Finished difference. Result has 29 places, 28 transitions, 98 flow [2023-08-25 03:16:57,126 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=29, PETRI_TRANSITIONS=28} [2023-08-25 03:16:57,129 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 3 predicate places. [2023-08-25 03:16:57,129 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 28 transitions, 98 flow [2023-08-25 03:16:57,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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 03:16:57,129 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:16:57,129 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:16:57,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 03:16:57,130 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:16:57,130 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:16:57,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1507823310, now seen corresponding path program 1 times [2023-08-25 03:16:57,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:16:57,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303696658] [2023-08-25 03:16:57,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:16:57,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:16:57,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:16:57,182 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 03:16:57,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:16:57,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303696658] [2023-08-25 03:16:57,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303696658] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:16:57,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:16:57,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:16:57,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314186188] [2023-08-25 03:16:57,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:16:57,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:16:57,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:16:57,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:16:57,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:16:57,187 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 105 [2023-08-25 03:16:57,187 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 28 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 03:16:57,187 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:16:57,187 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 105 [2023-08-25 03:16:57,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:16:57,254 INFO L124 PetriNetUnfolderBase]: 71/188 cut-off events. [2023-08-25 03:16:57,255 INFO L125 PetriNetUnfolderBase]: For 105/111 co-relation queries the response was YES. [2023-08-25 03:16:57,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 467 conditions, 188 events. 71/188 cut-off events. For 105/111 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 776 event pairs, 30 based on Foata normal form. 0/164 useless extension candidates. Maximal degree in co-relation 457. Up to 126 conditions per place. [2023-08-25 03:16:57,257 INFO L140 encePairwiseOnDemand]: 99/105 looper letters, 27 selfloop transitions, 7 changer transitions 2/40 dead transitions. [2023-08-25 03:16:57,257 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 40 transitions, 212 flow [2023-08-25 03:16:57,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:16:57,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:16:57,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 173 transitions. [2023-08-25 03:16:57,259 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5492063492063493 [2023-08-25 03:16:57,259 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 173 transitions. [2023-08-25 03:16:57,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 173 transitions. [2023-08-25 03:16:57,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:16:57,260 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 173 transitions. [2023-08-25 03:16:57,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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 03:16:57,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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 03:16:57,262 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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 03:16:57,262 INFO L175 Difference]: Start difference. First operand has 29 places, 28 transitions, 98 flow. Second operand 3 states and 173 transitions. [2023-08-25 03:16:57,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 40 transitions, 212 flow [2023-08-25 03:16:57,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 40 transitions, 194 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 03:16:57,265 INFO L231 Difference]: Finished difference. Result has 31 places, 33 transitions, 142 flow [2023-08-25 03:16:57,265 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=31, PETRI_TRANSITIONS=33} [2023-08-25 03:16:57,266 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 5 predicate places. [2023-08-25 03:16:57,266 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 33 transitions, 142 flow [2023-08-25 03:16:57,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 03:16:57,266 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:16:57,266 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:16:57,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 03:16:57,267 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:16:57,267 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:16:57,267 INFO L85 PathProgramCache]: Analyzing trace with hash 233818980, now seen corresponding path program 1 times [2023-08-25 03:16:57,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:16:57,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030679469] [2023-08-25 03:16:57,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:16:57,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:16:57,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:16:57,304 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 03:16:57,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:16:57,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030679469] [2023-08-25 03:16:57,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030679469] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:16:57,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:16:57,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:16:57,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927703564] [2023-08-25 03:16:57,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:16:57,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:16:57,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:16:57,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:16:57,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:16:57,307 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 105 [2023-08-25 03:16:57,307 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 33 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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 03:16:57,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:16:57,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 105 [2023-08-25 03:16:57,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:16:57,352 INFO L124 PetriNetUnfolderBase]: 69/194 cut-off events. [2023-08-25 03:16:57,352 INFO L125 PetriNetUnfolderBase]: For 158/170 co-relation queries the response was YES. [2023-08-25 03:16:57,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 542 conditions, 194 events. 69/194 cut-off events. For 158/170 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 827 event pairs, 23 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 531. Up to 120 conditions per place. [2023-08-25 03:16:57,354 INFO L140 encePairwiseOnDemand]: 99/105 looper letters, 24 selfloop transitions, 7 changer transitions 12/47 dead transitions. [2023-08-25 03:16:57,354 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 47 transitions, 290 flow [2023-08-25 03:16:57,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:16:57,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:16:57,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 176 transitions. [2023-08-25 03:16:57,356 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5587301587301587 [2023-08-25 03:16:57,356 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 176 transitions. [2023-08-25 03:16:57,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 176 transitions. [2023-08-25 03:16:57,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:16:57,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 176 transitions. [2023-08-25 03:16:57,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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 03:16:57,358 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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 03:16:57,359 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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 03:16:57,359 INFO L175 Difference]: Start difference. First operand has 31 places, 33 transitions, 142 flow. Second operand 3 states and 176 transitions. [2023-08-25 03:16:57,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 47 transitions, 290 flow [2023-08-25 03:16:57,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 47 transitions, 268 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 03:16:57,361 INFO L231 Difference]: Finished difference. Result has 33 places, 32 transitions, 160 flow [2023-08-25 03:16:57,361 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=160, PETRI_PLACES=33, PETRI_TRANSITIONS=32} [2023-08-25 03:16:57,362 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2023-08-25 03:16:57,362 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 32 transitions, 160 flow [2023-08-25 03:16:57,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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 03:16:57,363 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:16:57,363 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:16:57,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 03:16:57,363 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:16:57,363 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:16:57,364 INFO L85 PathProgramCache]: Analyzing trace with hash 367641434, now seen corresponding path program 1 times [2023-08-25 03:16:57,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:16:57,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054141917] [2023-08-25 03:16:57,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:16:57,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:16:57,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:16:57,508 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 03:16:57,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:16:57,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054141917] [2023-08-25 03:16:57,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054141917] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:16:57,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:16:57,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 03:16:57,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329237091] [2023-08-25 03:16:57,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:16:57,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:16:57,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:16:57,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:16:57,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:16:57,511 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 105 [2023-08-25 03:16:57,511 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 32 transitions, 160 flow. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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 03:16:57,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:16:57,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 105 [2023-08-25 03:16:57,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:16:57,538 INFO L124 PetriNetUnfolderBase]: 1/34 cut-off events. [2023-08-25 03:16:57,538 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-08-25 03:16:57,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 34 events. 1/34 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 31 event pairs, 1 based on Foata normal form. 8/42 useless extension candidates. Maximal degree in co-relation 88. Up to 16 conditions per place. [2023-08-25 03:16:57,539 INFO L140 encePairwiseOnDemand]: 101/105 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2023-08-25 03:16:57,539 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 18 transitions, 98 flow [2023-08-25 03:16:57,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:16:57,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:16:57,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 152 transitions. [2023-08-25 03:16:57,542 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48253968253968255 [2023-08-25 03:16:57,542 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 152 transitions. [2023-08-25 03:16:57,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 152 transitions. [2023-08-25 03:16:57,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:16:57,542 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 152 transitions. [2023-08-25 03:16:57,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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 03:16:57,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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 03:16:57,546 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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 03:16:57,546 INFO L175 Difference]: Start difference. First operand has 33 places, 32 transitions, 160 flow. Second operand 3 states and 152 transitions. [2023-08-25 03:16:57,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 18 transitions, 98 flow [2023-08-25 03:16:57,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 18 transitions, 62 flow, removed 8 selfloop flow, removed 8 redundant places. [2023-08-25 03:16:57,551 INFO L231 Difference]: Finished difference. Result has 23 places, 0 transitions, 0 flow [2023-08-25 03:16:57,551 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=23, PETRI_TRANSITIONS=0} [2023-08-25 03:16:57,552 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -3 predicate places. [2023-08-25 03:16:57,552 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 0 transitions, 0 flow [2023-08-25 03:16:57,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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 03:16:57,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2023-08-25 03:16:57,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2023-08-25 03:16:57,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-08-25 03:16:57,559 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2023-08-25 03:16:57,559 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-08-25 03:16:57,559 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-08-25 03:16:57,560 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-08-25 03:16:57,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 03:16:57,560 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-25 03:16:57,569 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 03:16:57,569 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 03:16:57,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 03:16:57 BasicIcfg [2023-08-25 03:16:57,576 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 03:16:57,577 INFO L158 Benchmark]: Toolchain (without parser) took 3625.87ms. Allocated memory was 385.9MB in the beginning and 463.5MB in the end (delta: 77.6MB). Free memory was 361.2MB in the beginning and 432.0MB in the end (delta: -70.8MB). Peak memory consumption was 7.2MB. Max. memory is 16.0GB. [2023-08-25 03:16:57,577 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 385.9MB. Free memory is still 362.5MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 03:16:57,578 INFO L158 Benchmark]: CACSL2BoogieTranslator took 444.94ms. Allocated memory is still 385.9MB. Free memory was 360.9MB in the beginning and 341.0MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 03:16:57,578 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.06ms. Allocated memory is still 385.9MB. Free memory was 341.0MB in the beginning and 339.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 03:16:57,581 INFO L158 Benchmark]: Boogie Preprocessor took 33.59ms. Allocated memory is still 385.9MB. Free memory was 339.2MB in the beginning and 337.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 03:16:57,585 INFO L158 Benchmark]: RCFGBuilder took 371.49ms. Allocated memory is still 385.9MB. Free memory was 337.8MB in the beginning and 325.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-25 03:16:57,585 INFO L158 Benchmark]: TraceAbstraction took 2715.30ms. Allocated memory was 385.9MB in the beginning and 463.5MB in the end (delta: 77.6MB). Free memory was 324.6MB in the beginning and 432.0MB in the end (delta: -107.4MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 03:16:57,587 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 385.9MB. Free memory is still 362.5MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 444.94ms. Allocated memory is still 385.9MB. Free memory was 360.9MB in the beginning and 341.0MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 52.06ms. Allocated memory is still 385.9MB. Free memory was 341.0MB in the beginning and 339.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 33.59ms. Allocated memory is still 385.9MB. Free memory was 339.2MB in the beginning and 337.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 371.49ms. Allocated memory is still 385.9MB. Free memory was 337.8MB in the beginning and 325.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 2715.30ms. Allocated memory was 385.9MB in the beginning and 463.5MB in the end (delta: 77.6MB). Free memory was 324.6MB in the beginning and 432.0MB in the end (delta: -107.4MB). There was no memory consumed. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.7s, 67 PlacesBefore, 26 PlacesAfterwards, 63 TransitionsBefore, 22 TransitionsAfterwards, 714 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 41 TotalNumberOfCompositions, 2927 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1195, independent: 962, independent conditional: 0, independent unconditional: 962, dependent: 233, dependent conditional: 0, dependent unconditional: 233, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 351, independent: 323, independent conditional: 0, independent unconditional: 323, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1195, independent: 639, independent conditional: 0, independent unconditional: 639, dependent: 205, dependent conditional: 0, dependent unconditional: 205, unknown: 351, unknown conditional: 0, unknown unconditional: 351] , Statistics on independence cache: Total cache size (in pairs): 71, Positive cache size: 56, Positive conditional cache size: 0, Positive unconditional cache size: 56, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 686]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 686]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 84 locations, 7 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: 2.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 130 IncrementalHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 14 mSDtfsCounter, 130 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=160occurred in iteration=3, InterpolantAutomatonStates: 12, 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, 0.3s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 42 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 03:16:57,608 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...