/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.pointer.base.address.is.valid.at.dereference ASSERTandASSUME --cacsl2boogietranslator.pointer.to.allocated.memory.at.dereference ASSERTandASSUME --cacsl2boogietranslator.check.array.bounds.for.arrays.that.are.off.heap ASSERTandASSUME --cacsl2boogietranslator.check.if.freed.pointer.was.valid true --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true -i ../../../trunk/examples/svcomp/weaver/chl-file-item-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-6bf5761-m [2023-12-05 21:19:36,070 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-05 21:19:36,109 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-NoLbe.epf [2023-12-05 21:19:36,126 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-05 21:19:36,127 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-05 21:19:36,127 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-05 21:19:36,127 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-05 21:19:36,128 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-05 21:19:36,128 INFO L153 SettingsManager]: * Use SBE=true [2023-12-05 21:19:36,128 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-05 21:19:36,129 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-05 21:19:36,129 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-05 21:19:36,129 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-05 21:19:36,129 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-05 21:19:36,130 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-05 21:19:36,130 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-05 21:19:36,130 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-05 21:19:36,130 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-05 21:19:36,131 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-05 21:19:36,131 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-05 21:19:36,131 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-05 21:19:36,131 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-05 21:19:36,132 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-05 21:19:36,132 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-05 21:19:36,132 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-05 21:19:36,132 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-05 21:19:36,133 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-05 21:19:36,133 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-05 21:19:36,133 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-05 21:19:36,133 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-05 21:19:36,133 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-05 21:19:36,134 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-05 21:19:36,134 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-05 21:19:36,134 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer base address is valid at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer to allocated memory at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check array bounds for arrays that are off heap -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check if freed pointer was valid -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2023-12-05 21:19:36,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-05 21:19:36,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-05 21:19:36,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-05 21:19:36,329 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-05 21:19:36,329 INFO L274 PluginConnector]: CDTParser initialized [2023-12-05 21:19:36,330 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-file-item-subst.wvr.c [2023-12-05 21:19:37,355 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-05 21:19:37,510 INFO L384 CDTParser]: Found 1 translation units. [2023-12-05 21:19:37,510 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-subst.wvr.c [2023-12-05 21:19:37,521 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54cc10aad/f92f3af0b7d84bee8104fa3a6ede7677/FLAGd892722ac [2023-12-05 21:19:37,534 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54cc10aad/f92f3af0b7d84bee8104fa3a6ede7677 [2023-12-05 21:19:37,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-05 21:19:37,538 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-05 21:19:37,539 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-05 21:19:37,539 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-05 21:19:37,542 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-05 21:19:37,542 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:19:37" (1/1) ... [2023-12-05 21:19:37,543 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7594e030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:19:37, skipping insertion in model container [2023-12-05 21:19:37,543 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:19:37" (1/1) ... [2023-12-05 21:19:37,562 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-05 21:19:37,704 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-05 21:19:37,738 INFO L202 MainTranslator]: Completed pre-run [2023-12-05 21:19:37,756 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-05 21:19:37,770 INFO L206 MainTranslator]: Completed translation [2023-12-05 21:19:37,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:19:37 WrapperNode [2023-12-05 21:19:37,772 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-05 21:19:37,773 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-05 21:19:37,773 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-05 21:19:37,773 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-05 21:19:37,778 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:19:37" (1/1) ... [2023-12-05 21:19:37,798 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:19:37" (1/1) ... [2023-12-05 21:19:37,820 INFO L138 Inliner]: procedures = 23, calls = 32, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 210 [2023-12-05 21:19:37,820 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-05 21:19:37,821 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-05 21:19:37,821 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-05 21:19:37,821 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-05 21:19:37,853 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:19:37" (1/1) ... [2023-12-05 21:19:37,853 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:19:37" (1/1) ... [2023-12-05 21:19:37,855 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:19:37" (1/1) ... [2023-12-05 21:19:37,855 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:19:37" (1/1) ... [2023-12-05 21:19:37,860 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:19:37" (1/1) ... [2023-12-05 21:19:37,879 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:19:37" (1/1) ... [2023-12-05 21:19:37,880 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:19:37" (1/1) ... [2023-12-05 21:19:37,881 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:19:37" (1/1) ... [2023-12-05 21:19:37,883 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-05 21:19:37,884 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-05 21:19:37,884 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-05 21:19:37,884 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-05 21:19:37,885 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:19:37" (1/1) ... [2023-12-05 21:19:37,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-05 21:19:37,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-05 21:19:37,952 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) [2023-12-05 21:19:37,987 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 [2023-12-05 21:19:38,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-05 21:19:38,006 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-05 21:19:38,006 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-05 21:19:38,006 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-05 21:19:38,006 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-05 21:19:38,006 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-12-05 21:19:38,006 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-12-05 21:19:38,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-05 21:19:38,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-05 21:19:38,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-05 21:19:38,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-05 21:19:38,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-05 21:19:38,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-05 21:19:38,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-05 21:19:38,008 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-05 21:19:38,119 INFO L241 CfgBuilder]: Building ICFG [2023-12-05 21:19:38,121 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-05 21:19:38,401 INFO L282 CfgBuilder]: Performing block encoding [2023-12-05 21:19:38,427 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-05 21:19:38,428 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-05 21:19:38,429 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:19:38 BoogieIcfgContainer [2023-12-05 21:19:38,429 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-05 21:19:38,430 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-05 21:19:38,430 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-05 21:19:38,449 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-05 21:19:38,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 09:19:37" (1/3) ... [2023-12-05 21:19:38,450 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67365bd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:19:38, skipping insertion in model container [2023-12-05 21:19:38,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:19:37" (2/3) ... [2023-12-05 21:19:38,450 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67365bd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:19:38, skipping insertion in model container [2023-12-05 21:19:38,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:19:38" (3/3) ... [2023-12-05 21:19:38,452 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-file-item-subst.wvr.c [2023-12-05 21:19:38,465 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-05 21:19:38,473 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-12-05 21:19:38,473 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-05 21:19:38,608 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-12-05 21:19:38,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 268 places, 278 transitions, 577 flow [2023-12-05 21:19:38,701 INFO L124 PetriNetUnfolderBase]: 20/275 cut-off events. [2023-12-05 21:19:38,702 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-12-05 21:19:38,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 288 conditions, 275 events. 20/275 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 652 event pairs, 0 based on Foata normal form. 0/243 useless extension candidates. Maximal degree in co-relation 180. Up to 2 conditions per place. [2023-12-05 21:19:38,710 INFO L82 GeneralOperation]: Start removeDead. Operand has 268 places, 278 transitions, 577 flow [2023-12-05 21:19:38,720 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 235 places, 243 transitions, 501 flow [2023-12-05 21:19:38,730 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-05 21:19:38,737 INFO L362 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@574ae3cd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-05 21:19:38,737 INFO L363 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-12-05 21:19:38,749 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-05 21:19:38,750 INFO L124 PetriNetUnfolderBase]: 0/56 cut-off events. [2023-12-05 21:19:38,750 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-05 21:19:38,750 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:19:38,750 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:19:38,751 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2023-12-05 21:19:38,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:19:38,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1378968016, now seen corresponding path program 1 times [2023-12-05 21:19:38,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:19:38,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503804938] [2023-12-05 21:19:38,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:19:38,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:19:38,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:19:39,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:19:39,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:19:39,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503804938] [2023-12-05 21:19:39,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503804938] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:19:39,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:19:39,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:19:39,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536878868] [2023-12-05 21:19:39,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:19:39,214 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:19:39,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:19:39,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:19:39,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:19:39,253 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 278 [2023-12-05 21:19:39,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 243 transitions, 501 flow. Second operand has 3 states, 3 states have (on average 239.66666666666666) internal successors, (719), 3 states have internal predecessors, (719), 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) [2023-12-05 21:19:39,258 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:19:39,258 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 278 [2023-12-05 21:19:39,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:19:39,364 INFO L124 PetriNetUnfolderBase]: 12/235 cut-off events. [2023-12-05 21:19:39,364 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-12-05 21:19:39,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 235 events. 12/235 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 630 event pairs, 0 based on Foata normal form. 23/234 useless extension candidates. Maximal degree in co-relation 190. Up to 20 conditions per place. [2023-12-05 21:19:39,367 INFO L140 encePairwiseOnDemand]: 269/278 looper letters, 23 selfloop transitions, 1 changer transitions 0/235 dead transitions. [2023-12-05 21:19:39,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 235 transitions, 533 flow [2023-12-05 21:19:39,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:19:39,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:19:39,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 743 transitions. [2023-12-05 21:19:39,383 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8908872901678657 [2023-12-05 21:19:39,384 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 743 transitions. [2023-12-05 21:19:39,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 743 transitions. [2023-12-05 21:19:39,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:19:39,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 743 transitions. [2023-12-05 21:19:39,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 247.66666666666666) internal successors, (743), 3 states have internal predecessors, (743), 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) [2023-12-05 21:19:39,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2023-12-05 21:19:39,399 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2023-12-05 21:19:39,403 INFO L308 CegarLoopForPetriNet]: 235 programPoint places, 0 predicate places. [2023-12-05 21:19:39,403 INFO L500 AbstractCegarLoop]: Abstraction has has 235 places, 235 transitions, 533 flow [2023-12-05 21:19:39,404 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 239.66666666666666) internal successors, (719), 3 states have internal predecessors, (719), 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) [2023-12-05 21:19:39,404 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:19:39,404 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:19:39,404 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-05 21:19:39,404 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2023-12-05 21:19:39,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:19:39,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1378968015, now seen corresponding path program 1 times [2023-12-05 21:19:39,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:19:39,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103657371] [2023-12-05 21:19:39,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:19:39,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:19:39,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:19:39,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:19:39,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:19:39,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103657371] [2023-12-05 21:19:39,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103657371] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:19:39,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:19:39,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-05 21:19:39,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054499429] [2023-12-05 21:19:39,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:19:39,619 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-05 21:19:39,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:19:39,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-05 21:19:39,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-05 21:19:39,620 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 278 [2023-12-05 21:19:39,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 235 transitions, 533 flow. Second operand has 4 states, 4 states have (on average 235.0) internal successors, (940), 4 states have internal predecessors, (940), 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) [2023-12-05 21:19:39,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:19:39,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 278 [2023-12-05 21:19:39,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:19:39,704 INFO L124 PetriNetUnfolderBase]: 12/233 cut-off events. [2023-12-05 21:19:39,704 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2023-12-05 21:19:39,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 295 conditions, 233 events. 12/233 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 619 event pairs, 0 based on Foata normal form. 0/211 useless extension candidates. Maximal degree in co-relation 204. Up to 22 conditions per place. [2023-12-05 21:19:39,709 INFO L140 encePairwiseOnDemand]: 275/278 looper letters, 25 selfloop transitions, 1 changer transitions 0/233 dead transitions. [2023-12-05 21:19:39,709 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 233 transitions, 577 flow [2023-12-05 21:19:39,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:19:39,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:19:39,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 727 transitions. [2023-12-05 21:19:39,712 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8717026378896883 [2023-12-05 21:19:39,712 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 727 transitions. [2023-12-05 21:19:39,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 727 transitions. [2023-12-05 21:19:39,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:19:39,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 727 transitions. [2023-12-05 21:19:39,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 242.33333333333334) internal successors, (727), 3 states have internal predecessors, (727), 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) [2023-12-05 21:19:39,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2023-12-05 21:19:39,716 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2023-12-05 21:19:39,717 INFO L308 CegarLoopForPetriNet]: 235 programPoint places, 0 predicate places. [2023-12-05 21:19:39,717 INFO L500 AbstractCegarLoop]: Abstraction has has 235 places, 233 transitions, 577 flow [2023-12-05 21:19:39,717 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 235.0) internal successors, (940), 4 states have internal predecessors, (940), 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) [2023-12-05 21:19:39,717 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:19:39,718 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:19:39,718 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-05 21:19:39,718 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2023-12-05 21:19:39,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:19:39,719 INFO L85 PathProgramCache]: Analyzing trace with hash -736340290, now seen corresponding path program 1 times [2023-12-05 21:19:39,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:19:39,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414662046] [2023-12-05 21:19:39,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:19:39,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:19:39,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:19:39,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:19:39,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:19:39,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414662046] [2023-12-05 21:19:39,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414662046] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:19:39,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:19:39,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-05 21:19:39,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410492894] [2023-12-05 21:19:39,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:19:39,895 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-05 21:19:39,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:19:39,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-05 21:19:39,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-05 21:19:39,899 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 278 [2023-12-05 21:19:39,900 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 233 transitions, 577 flow. Second operand has 4 states, 4 states have (on average 235.5) internal successors, (942), 4 states have internal predecessors, (942), 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) [2023-12-05 21:19:39,900 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:19:39,900 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 278 [2023-12-05 21:19:39,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:19:39,958 INFO L124 PetriNetUnfolderBase]: 12/229 cut-off events. [2023-12-05 21:19:39,958 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2023-12-05 21:19:39,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 229 events. 12/229 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 590 event pairs, 0 based on Foata normal form. 2/211 useless extension candidates. Maximal degree in co-relation 213. Up to 18 conditions per place. [2023-12-05 21:19:39,965 INFO L140 encePairwiseOnDemand]: 273/278 looper letters, 21 selfloop transitions, 1 changer transitions 0/229 dead transitions. [2023-12-05 21:19:39,965 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 229 transitions, 601 flow [2023-12-05 21:19:39,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:19:39,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:19:39,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 725 transitions. [2023-12-05 21:19:39,967 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8693045563549161 [2023-12-05 21:19:39,967 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 725 transitions. [2023-12-05 21:19:39,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 725 transitions. [2023-12-05 21:19:39,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:19:39,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 725 transitions. [2023-12-05 21:19:39,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 241.66666666666666) internal successors, (725), 3 states have internal predecessors, (725), 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) [2023-12-05 21:19:39,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2023-12-05 21:19:39,970 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2023-12-05 21:19:39,972 INFO L308 CegarLoopForPetriNet]: 235 programPoint places, -2 predicate places. [2023-12-05 21:19:39,972 INFO L500 AbstractCegarLoop]: Abstraction has has 233 places, 229 transitions, 601 flow [2023-12-05 21:19:39,972 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 235.5) internal successors, (942), 4 states have internal predecessors, (942), 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) [2023-12-05 21:19:39,972 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:19:39,972 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:19:39,973 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-05 21:19:39,973 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2023-12-05 21:19:39,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:19:39,973 INFO L85 PathProgramCache]: Analyzing trace with hash -461151497, now seen corresponding path program 1 times [2023-12-05 21:19:39,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:19:39,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239707786] [2023-12-05 21:19:39,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:19:39,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:19:39,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:19:40,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:19:40,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:19:40,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239707786] [2023-12-05 21:19:40,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239707786] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:19:40,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:19:40,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:19:40,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312384119] [2023-12-05 21:19:40,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:19:40,029 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:19:40,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:19:40,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:19:40,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:19:40,035 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 278 [2023-12-05 21:19:40,036 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 229 transitions, 601 flow. Second operand has 3 states, 3 states have (on average 241.0) internal successors, (723), 3 states have internal predecessors, (723), 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) [2023-12-05 21:19:40,036 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:19:40,036 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 278 [2023-12-05 21:19:40,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:19:40,082 INFO L124 PetriNetUnfolderBase]: 12/227 cut-off events. [2023-12-05 21:19:40,082 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2023-12-05 21:19:40,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 321 conditions, 227 events. 12/227 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 582 event pairs, 0 based on Foata normal form. 0/209 useless extension candidates. Maximal degree in co-relation 222. Up to 16 conditions per place. [2023-12-05 21:19:40,085 INFO L140 encePairwiseOnDemand]: 275/278 looper letters, 19 selfloop transitions, 1 changer transitions 0/227 dead transitions. [2023-12-05 21:19:40,085 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 227 transitions, 625 flow [2023-12-05 21:19:40,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:19:40,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:19:40,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 733 transitions. [2023-12-05 21:19:40,087 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8788968824940048 [2023-12-05 21:19:40,087 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 733 transitions. [2023-12-05 21:19:40,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 733 transitions. [2023-12-05 21:19:40,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:19:40,087 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 733 transitions. [2023-12-05 21:19:40,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 244.33333333333334) internal successors, (733), 3 states have internal predecessors, (733), 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) [2023-12-05 21:19:40,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2023-12-05 21:19:40,091 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2023-12-05 21:19:40,092 INFO L308 CegarLoopForPetriNet]: 235 programPoint places, -2 predicate places. [2023-12-05 21:19:40,093 INFO L500 AbstractCegarLoop]: Abstraction has has 233 places, 227 transitions, 625 flow [2023-12-05 21:19:40,093 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 241.0) internal successors, (723), 3 states have internal predecessors, (723), 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) [2023-12-05 21:19:40,093 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:19:40,094 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:19:40,094 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-05 21:19:40,094 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2023-12-05 21:19:40,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:19:40,094 INFO L85 PathProgramCache]: Analyzing trace with hash -461151496, now seen corresponding path program 1 times [2023-12-05 21:19:40,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:19:40,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411889131] [2023-12-05 21:19:40,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:19:40,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:19:40,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:19:40,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:19:40,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:19:40,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411889131] [2023-12-05 21:19:40,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411889131] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:19:40,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:19:40,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:19:40,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710971473] [2023-12-05 21:19:40,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:19:40,254 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:19:40,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:19:40,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:19:40,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:19:40,256 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 278 [2023-12-05 21:19:40,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 227 transitions, 625 flow. Second operand has 3 states, 3 states have (on average 243.66666666666666) internal successors, (731), 3 states have internal predecessors, (731), 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) [2023-12-05 21:19:40,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:19:40,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 278 [2023-12-05 21:19:40,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:19:40,299 INFO L124 PetriNetUnfolderBase]: 12/225 cut-off events. [2023-12-05 21:19:40,299 INFO L125 PetriNetUnfolderBase]: For 104/104 co-relation queries the response was YES. [2023-12-05 21:19:40,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 331 conditions, 225 events. 12/225 cut-off events. For 104/104 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 571 event pairs, 0 based on Foata normal form. 2/209 useless extension candidates. Maximal degree in co-relation 229. Up to 14 conditions per place. [2023-12-05 21:19:40,301 INFO L140 encePairwiseOnDemand]: 275/278 looper letters, 0 selfloop transitions, 0 changer transitions 225/225 dead transitions. [2023-12-05 21:19:40,301 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 225 transitions, 643 flow [2023-12-05 21:19:40,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:19:40,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:19:40,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 739 transitions. [2023-12-05 21:19:40,302 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8860911270983214 [2023-12-05 21:19:40,302 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 739 transitions. [2023-12-05 21:19:40,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 739 transitions. [2023-12-05 21:19:40,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:19:40,303 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 739 transitions. [2023-12-05 21:19:40,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 246.33333333333334) internal successors, (739), 3 states have internal predecessors, (739), 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) [2023-12-05 21:19:40,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2023-12-05 21:19:40,306 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2023-12-05 21:19:40,307 INFO L308 CegarLoopForPetriNet]: 235 programPoint places, -2 predicate places. [2023-12-05 21:19:40,307 INFO L500 AbstractCegarLoop]: Abstraction has has 233 places, 225 transitions, 643 flow [2023-12-05 21:19:40,307 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 243.66666666666666) internal successors, (731), 3 states have internal predecessors, (731), 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) [2023-12-05 21:19:40,314 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/chl-file-item-subst.wvr.c_BEv2_AllErrorsAtOnce [2023-12-05 21:19:40,347 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 15 remaining) [2023-12-05 21:19:40,347 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 15 remaining) [2023-12-05 21:19:40,348 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 15 remaining) [2023-12-05 21:19:40,348 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 15 remaining) [2023-12-05 21:19:40,348 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 15 remaining) [2023-12-05 21:19:40,348 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 15 remaining) [2023-12-05 21:19:40,348 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 15 remaining) [2023-12-05 21:19:40,348 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 15 remaining) [2023-12-05 21:19:40,348 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 15 remaining) [2023-12-05 21:19:40,348 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 15 remaining) [2023-12-05 21:19:40,348 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 15 remaining) [2023-12-05 21:19:40,348 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 15 remaining) [2023-12-05 21:19:40,349 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 15 remaining) [2023-12-05 21:19:40,349 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 15 remaining) [2023-12-05 21:19:40,349 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 15 remaining) [2023-12-05 21:19:40,349 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-05 21:19:40,349 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-05 21:19:40,351 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-05 21:19:40,351 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-05 21:19:40,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 09:19:40 BasicIcfg [2023-12-05 21:19:40,361 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-05 21:19:40,361 INFO L158 Benchmark]: Toolchain (without parser) took 2823.72ms. Allocated memory was 212.9MB in the beginning and 255.9MB in the end (delta: 43.0MB). Free memory was 148.5MB in the beginning and 164.0MB in the end (delta: -15.5MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2023-12-05 21:19:40,365 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 212.9MB. Free memory is still 164.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-05 21:19:40,368 INFO L158 Benchmark]: CACSL2BoogieTranslator took 233.88ms. Allocated memory is still 212.9MB. Free memory was 148.3MB in the beginning and 136.2MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-05 21:19:40,369 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.10ms. Allocated memory is still 212.9MB. Free memory was 136.2MB in the beginning and 133.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-05 21:19:40,370 INFO L158 Benchmark]: Boogie Preprocessor took 62.92ms. Allocated memory is still 212.9MB. Free memory was 133.8MB in the beginning and 132.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-05 21:19:40,370 INFO L158 Benchmark]: RCFGBuilder took 544.79ms. Allocated memory was 212.9MB in the beginning and 255.9MB in the end (delta: 43.0MB). Free memory was 132.0MB in the beginning and 202.2MB in the end (delta: -70.1MB). Peak memory consumption was 7.5MB. Max. memory is 8.0GB. [2023-12-05 21:19:40,370 INFO L158 Benchmark]: TraceAbstraction took 1930.61ms. Allocated memory is still 255.9MB. Free memory was 201.1MB in the beginning and 164.0MB in the end (delta: 37.1MB). Peak memory consumption was 35.5MB. Max. memory is 8.0GB. [2023-12-05 21:19:40,371 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 212.9MB. Free memory is still 164.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 233.88ms. Allocated memory is still 212.9MB. Free memory was 148.3MB in the beginning and 136.2MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.10ms. Allocated memory is still 212.9MB. Free memory was 136.2MB in the beginning and 133.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 62.92ms. Allocated memory is still 212.9MB. Free memory was 133.8MB in the beginning and 132.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 544.79ms. Allocated memory was 212.9MB in the beginning and 255.9MB in the end (delta: 43.0MB). Free memory was 132.0MB in the beginning and 202.2MB in the end (delta: -70.1MB). Peak memory consumption was 7.5MB. Max. memory is 8.0GB. * TraceAbstraction took 1930.61ms. Allocated memory is still 255.9MB. Free memory was 201.1MB in the beginning and 164.0MB in the end (delta: 37.1MB). Peak memory consumption was 35.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 400 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 86 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 86 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 107 IncrementalHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 29 mSDtfsCounter, 107 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=643occurred in iteration=5, InterpolantAutomatonStates: 15, 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, 0.8s InterpolantComputationTime, 310 NumberOfCodeBlocks, 310 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 305 ConstructedInterpolants, 0 QuantifiedInterpolants, 1595 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-12-05 21:19:40,399 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...