/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 -i ../../../trunk/examples/svcomp/weaver/test-semi1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-24 16:41:09,537 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-24 16:41:09,621 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 [2023-08-24 16:41:09,627 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-24 16:41:09,628 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-24 16:41:09,663 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-24 16:41:09,663 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-24 16:41:09,668 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-24 16:41:09,669 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-24 16:41:09,672 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-24 16:41:09,673 INFO L153 SettingsManager]: * Use SBE=true [2023-08-24 16:41:09,673 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-24 16:41:09,673 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-24 16:41:09,674 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-24 16:41:09,674 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-24 16:41:09,675 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-24 16:41:09,675 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-24 16:41:09,675 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-24 16:41:09,675 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-24 16:41:09,675 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-24 16:41:09,676 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-24 16:41:09,676 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-24 16:41:09,676 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-24 16:41:09,677 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-24 16:41:09,677 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-24 16:41:09,677 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-24 16:41:09,677 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-24 16:41:09,677 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 16:41:09,678 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-24 16:41:09,678 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-24 16:41:09,679 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-24 16:41:09,679 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-24 16:41:09,679 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-24 16:41:09,679 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-24 16:41:09,679 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-24 16:41:09,680 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST [2023-08-24 16:41:10,008 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-24 16:41:10,026 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-24 16:41:10,028 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-24 16:41:10,029 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-24 16:41:10,029 INFO L274 PluginConnector]: CDTParser initialized [2023-08-24 16:41:10,031 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-semi1.wvr.c [2023-08-24 16:41:11,343 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-24 16:41:11,559 INFO L384 CDTParser]: Found 1 translation units. [2023-08-24 16:41:11,559 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-semi1.wvr.c [2023-08-24 16:41:11,566 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fe870771/4db4ad38bdc6440f8aaae8ccffb58dc3/FLAGb83bfb9ef [2023-08-24 16:41:11,581 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fe870771/4db4ad38bdc6440f8aaae8ccffb58dc3 [2023-08-24 16:41:11,583 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-24 16:41:11,584 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-24 16:41:11,585 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-24 16:41:11,585 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-24 16:41:11,589 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-24 16:41:11,590 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 04:41:11" (1/1) ... [2023-08-24 16:41:11,591 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f9dde51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:41:11, skipping insertion in model container [2023-08-24 16:41:11,591 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 04:41:11" (1/1) ... [2023-08-24 16:41:11,608 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-24 16:41:11,770 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-semi1.wvr.c[1979,1992] [2023-08-24 16:41:11,771 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 16:41:11,780 INFO L201 MainTranslator]: Completed pre-run [2023-08-24 16:41:11,800 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-semi1.wvr.c[1979,1992] [2023-08-24 16:41:11,805 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 16:41:11,815 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 16:41:11,816 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 16:41:11,822 INFO L206 MainTranslator]: Completed translation [2023-08-24 16:41:11,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:41:11 WrapperNode [2023-08-24 16:41:11,823 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-24 16:41:11,824 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-24 16:41:11,824 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-24 16:41:11,824 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-24 16:41:11,830 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:41:11" (1/1) ... [2023-08-24 16:41:11,837 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:41:11" (1/1) ... [2023-08-24 16:41:11,859 INFO L138 Inliner]: procedures = 21, calls = 26, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 73 [2023-08-24 16:41:11,859 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-24 16:41:11,860 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-24 16:41:11,860 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-24 16:41:11,860 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-24 16:41:11,867 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:41:11" (1/1) ... [2023-08-24 16:41:11,868 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:41:11" (1/1) ... [2023-08-24 16:41:11,877 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:41:11" (1/1) ... [2023-08-24 16:41:11,878 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:41:11" (1/1) ... [2023-08-24 16:41:11,887 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:41:11" (1/1) ... [2023-08-24 16:41:11,888 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:41:11" (1/1) ... [2023-08-24 16:41:11,889 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:41:11" (1/1) ... [2023-08-24 16:41:11,890 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:41:11" (1/1) ... [2023-08-24 16:41:11,892 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-24 16:41:11,893 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-24 16:41:11,893 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-24 16:41:11,893 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-24 16:41:11,893 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:41:11" (1/1) ... [2023-08-24 16:41:11,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 16:41:11,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 16:41:11,926 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) [2023-08-24 16:41:11,932 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 [2023-08-24 16:41:11,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-24 16:41:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-24 16:41:11,956 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-24 16:41:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-24 16:41:11,956 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-24 16:41:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-24 16:41:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-24 16:41:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-24 16:41:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-24 16:41:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-24 16:41:11,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-24 16:41:11,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-24 16:41:11,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-24 16:41:11,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-24 16:41:11,958 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-24 16:41:12,069 INFO L236 CfgBuilder]: Building ICFG [2023-08-24 16:41:12,071 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-24 16:41:12,284 INFO L277 CfgBuilder]: Performing block encoding [2023-08-24 16:41:12,341 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-24 16:41:12,342 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-24 16:41:12,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 04:41:12 BoogieIcfgContainer [2023-08-24 16:41:12,344 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-24 16:41:12,346 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-24 16:41:12,346 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-24 16:41:12,349 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-24 16:41:12,349 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.08 04:41:11" (1/3) ... [2023-08-24 16:41:12,350 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17987730 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 04:41:12, skipping insertion in model container [2023-08-24 16:41:12,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:41:11" (2/3) ... [2023-08-24 16:41:12,350 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17987730 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 04:41:12, skipping insertion in model container [2023-08-24 16:41:12,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 04:41:12" (3/3) ... [2023-08-24 16:41:12,351 INFO L112 eAbstractionObserver]: Analyzing ICFG test-semi1.wvr.c [2023-08-24 16:41:12,366 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-24 16:41:12,367 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-24 16:41:12,367 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-24 16:41:12,430 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-24 16:41:12,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 75 transitions, 166 flow [2023-08-24 16:41:12,496 INFO L124 PetriNetUnfolderBase]: 3/73 cut-off events. [2023-08-24 16:41:12,496 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 16:41:12,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 73 events. 3/73 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 18 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2023-08-24 16:41:12,500 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 75 transitions, 166 flow [2023-08-24 16:41:12,503 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 65 transitions, 142 flow [2023-08-24 16:41:12,506 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 16:41:12,514 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 65 transitions, 142 flow [2023-08-24 16:41:12,517 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 65 transitions, 142 flow [2023-08-24 16:41:12,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 65 transitions, 142 flow [2023-08-24 16:41:12,537 INFO L124 PetriNetUnfolderBase]: 3/65 cut-off events. [2023-08-24 16:41:12,537 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 16:41:12,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 65 events. 3/65 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 17 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2023-08-24 16:41:12,538 INFO L119 LiptonReduction]: Number of co-enabled transitions 108 [2023-08-24 16:41:14,665 INFO L134 LiptonReduction]: Checked pairs total: 173 [2023-08-24 16:41:14,665 INFO L136 LiptonReduction]: Total number of compositions: 65 [2023-08-24 16:41:14,679 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-24 16:41:14,684 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;@1ec431fe, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 16:41:14,685 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-08-24 16:41:14,689 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 16:41:14,689 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2023-08-24 16:41:14,689 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 16:41:14,689 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 16:41:14,690 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 16:41:14,690 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 16:41:14,695 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 16:41:14,695 INFO L85 PathProgramCache]: Analyzing trace with hash 2115014791, now seen corresponding path program 1 times [2023-08-24 16:41:14,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 16:41:14,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996215267] [2023-08-24 16:41:14,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 16:41:14,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 16:41:14,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 16:41:15,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 16:41:15,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 16:41:15,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996215267] [2023-08-24 16:41:15,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996215267] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 16:41:15,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 16:41:15,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 16:41:15,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957122199] [2023-08-24 16:41:15,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 16:41:15,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-24 16:41:15,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 16:41:15,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-24 16:41:15,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-24 16:41:15,229 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 140 [2023-08-24 16:41:15,231 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 11 transitions, 34 flow. Second operand has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 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) [2023-08-24 16:41:15,232 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 16:41:15,232 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 140 [2023-08-24 16:41:15,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 16:41:15,278 INFO L124 PetriNetUnfolderBase]: 8/32 cut-off events. [2023-08-24 16:41:15,278 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-24 16:41:15,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 32 events. 8/32 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 59 event pairs, 1 based on Foata normal form. 1/33 useless extension candidates. Maximal degree in co-relation 45. Up to 13 conditions per place. [2023-08-24 16:41:15,279 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 10 selfloop transitions, 2 changer transitions 10/22 dead transitions. [2023-08-24 16:41:15,280 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 22 transitions, 112 flow [2023-08-24 16:41:15,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-24 16:41:15,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-24 16:41:15,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 255 transitions. [2023-08-24 16:41:15,292 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45535714285714285 [2023-08-24 16:41:15,293 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 255 transitions. [2023-08-24 16:41:15,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 255 transitions. [2023-08-24 16:41:15,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 16:41:15,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 255 transitions. [2023-08-24 16:41:15,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 63.75) internal successors, (255), 4 states have internal predecessors, (255), 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) [2023-08-24 16:41:15,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 140.0) internal successors, (700), 5 states have internal predecessors, (700), 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) [2023-08-24 16:41:15,305 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 140.0) internal successors, (700), 5 states have internal predecessors, (700), 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) [2023-08-24 16:41:15,306 INFO L175 Difference]: Start difference. First operand has 18 places, 11 transitions, 34 flow. Second operand 4 states and 255 transitions. [2023-08-24 16:41:15,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 22 transitions, 112 flow [2023-08-24 16:41:15,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 22 transitions, 96 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-24 16:41:15,311 INFO L231 Difference]: Finished difference. Result has 18 places, 11 transitions, 36 flow [2023-08-24 16:41:15,312 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=36, PETRI_PLACES=18, PETRI_TRANSITIONS=11} [2023-08-24 16:41:15,316 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 0 predicate places. [2023-08-24 16:41:15,316 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 11 transitions, 36 flow [2023-08-24 16:41:15,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 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) [2023-08-24 16:41:15,317 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 16:41:15,317 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 16:41:15,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-24 16:41:15,317 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 16:41:15,318 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 16:41:15,318 INFO L85 PathProgramCache]: Analyzing trace with hash -876766747, now seen corresponding path program 2 times [2023-08-24 16:41:15,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 16:41:15,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741477273] [2023-08-24 16:41:15,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 16:41:15,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 16:41:15,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 16:41:15,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 16:41:15,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 16:41:15,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741477273] [2023-08-24 16:41:15,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741477273] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 16:41:15,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 16:41:15,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 16:41:15,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312930370] [2023-08-24 16:41:15,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 16:41:15,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-24 16:41:15,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 16:41:15,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-24 16:41:15,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-24 16:41:15,518 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 140 [2023-08-24 16:41:15,518 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 11 transitions, 36 flow. Second operand has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 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) [2023-08-24 16:41:15,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 16:41:15,519 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 140 [2023-08-24 16:41:15,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 16:41:15,551 INFO L124 PetriNetUnfolderBase]: 2/14 cut-off events. [2023-08-24 16:41:15,551 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-24 16:41:15,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 14 events. 2/14 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 8 event pairs, 1 based on Foata normal form. 1/15 useless extension candidates. Maximal degree in co-relation 17. Up to 11 conditions per place. [2023-08-24 16:41:15,552 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 0 selfloop transitions, 0 changer transitions 11/11 dead transitions. [2023-08-24 16:41:15,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 11 transitions, 56 flow [2023-08-24 16:41:15,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-24 16:41:15,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-24 16:41:15,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 244 transitions. [2023-08-24 16:41:15,557 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4357142857142857 [2023-08-24 16:41:15,558 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 244 transitions. [2023-08-24 16:41:15,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 244 transitions. [2023-08-24 16:41:15,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 16:41:15,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 244 transitions. [2023-08-24 16:41:15,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 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) [2023-08-24 16:41:15,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 140.0) internal successors, (700), 5 states have internal predecessors, (700), 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) [2023-08-24 16:41:15,563 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 140.0) internal successors, (700), 5 states have internal predecessors, (700), 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) [2023-08-24 16:41:15,563 INFO L175 Difference]: Start difference. First operand has 18 places, 11 transitions, 36 flow. Second operand 4 states and 244 transitions. [2023-08-24 16:41:15,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 11 transitions, 56 flow [2023-08-24 16:41:15,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 11 transitions, 50 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-24 16:41:15,564 INFO L231 Difference]: Finished difference. Result has 16 places, 0 transitions, 0 flow [2023-08-24 16:41:15,565 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=16, PETRI_TRANSITIONS=0} [2023-08-24 16:41:15,565 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, -2 predicate places. [2023-08-24 16:41:15,565 INFO L495 AbstractCegarLoop]: Abstraction has has 16 places, 0 transitions, 0 flow [2023-08-24 16:41:15,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 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) [2023-08-24 16:41:15,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-08-24 16:41:15,570 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-08-24 16:41:15,573 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-08-24 16:41:15,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-24 16:41:15,573 INFO L445 BasicCegarLoop]: Path program histogram: [2] [2023-08-24 16:41:15,576 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-24 16:41:15,576 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-24 16:41:15,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.08 04:41:15 BasicIcfg [2023-08-24 16:41:15,582 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-24 16:41:15,583 INFO L158 Benchmark]: Toolchain (without parser) took 3999.00ms. Allocated memory was 343.9MB in the beginning and 465.6MB in the end (delta: 121.6MB). Free memory was 320.6MB in the beginning and 324.8MB in the end (delta: -4.2MB). Peak memory consumption was 118.7MB. Max. memory is 16.0GB. [2023-08-24 16:41:15,583 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 343.9MB. Free memory is still 320.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-24 16:41:15,583 INFO L158 Benchmark]: CACSL2BoogieTranslator took 238.38ms. Allocated memory is still 343.9MB. Free memory was 320.1MB in the beginning and 309.9MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-24 16:41:15,584 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.32ms. Allocated memory is still 343.9MB. Free memory was 309.9MB in the beginning and 308.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-24 16:41:15,584 INFO L158 Benchmark]: Boogie Preprocessor took 31.85ms. Allocated memory is still 343.9MB. Free memory was 308.3MB in the beginning and 306.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-24 16:41:15,585 INFO L158 Benchmark]: RCFGBuilder took 451.28ms. Allocated memory is still 343.9MB. Free memory was 306.7MB in the beginning and 293.0MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-24 16:41:15,585 INFO L158 Benchmark]: TraceAbstraction took 3236.57ms. Allocated memory was 343.9MB in the beginning and 465.6MB in the end (delta: 121.6MB). Free memory was 292.0MB in the beginning and 324.8MB in the end (delta: -32.8MB). Peak memory consumption was 89.4MB. Max. memory is 16.0GB. [2023-08-24 16:41:15,587 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 343.9MB. Free memory is still 320.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 238.38ms. Allocated memory is still 343.9MB. Free memory was 320.1MB in the beginning and 309.9MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 35.32ms. Allocated memory is still 343.9MB. Free memory was 309.9MB in the beginning and 308.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 31.85ms. Allocated memory is still 343.9MB. Free memory was 308.3MB in the beginning and 306.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 451.28ms. Allocated memory is still 343.9MB. Free memory was 306.7MB in the beginning and 293.0MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 3236.57ms. Allocated memory was 343.9MB in the beginning and 465.6MB in the end (delta: 121.6MB). Free memory was 292.0MB in the beginning and 324.8MB in the end (delta: -32.8MB). Peak memory consumption was 89.4MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.1s, 69 PlacesBefore, 18 PlacesAfterwards, 65 TransitionsBefore, 11 TransitionsAfterwards, 108 CoEnabledTransitionPairs, 6 FixpointIterations, 42 TrivialSequentialCompositions, 11 ConcurrentSequentialCompositions, 9 TrivialYvCompositions, 0 ConcurrentYvCompositions, 3 ChoiceCompositions, 65 TotalNumberOfCompositions, 173 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 160, independent: 147, independent conditional: 0, independent unconditional: 147, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 66, independent: 63, independent conditional: 0, independent unconditional: 63, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 160, independent: 84, independent conditional: 0, independent unconditional: 84, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 66, unknown conditional: 0, unknown unconditional: 66] , Statistics on independence cache: Total cache size (in pairs): 7, Positive cache size: 6, Positive conditional cache size: 0, Positive unconditional cache size: 6, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 72]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 83 locations, 3 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: 3.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 60 IncrementalHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 60 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=1, InterpolantAutomatonStates: 8, 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, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 168 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-24 16:41:15,609 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...