/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -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/parallel-misc-3-extended.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 05:34:25,337 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 05:34:25,404 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 [2023-11-30 05:34:25,429 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 05:34:25,430 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 05:34:25,430 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 05:34:25,430 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 05:34:25,431 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 05:34:25,431 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 05:34:25,435 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 05:34:25,436 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 05:34:25,436 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 05:34:25,436 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 05:34:25,437 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 05:34:25,437 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 05:34:25,437 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 05:34:25,437 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 05:34:25,438 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 05:34:25,438 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 05:34:25,438 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 05:34:25,438 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 05:34:25,439 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 05:34:25,439 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 05:34:25,439 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 05:34:25,439 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 05:34:25,440 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 05:34:25,440 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 05:34:25,441 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 05:34:25,441 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 05:34:25,441 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 05:34:25,442 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 05:34:25,442 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 05:34:25,442 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 05:34:25,442 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer base address is valid at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer to allocated memory at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check array bounds for arrays that are off heap -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check if freed pointer was valid -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2023-11-30 05:34:25,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 05:34:25,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 05:34:25,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 05:34:25,651 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 05:34:25,651 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 05:34:25,652 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-3-extended.wvr.c [2023-11-30 05:34:26,690 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 05:34:26,816 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 05:34:26,816 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-3-extended.wvr.c [2023-11-30 05:34:26,821 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69fdb3a68/9df17907245f4d1bb10fbb062f06762c/FLAG34547f7ee [2023-11-30 05:34:26,829 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69fdb3a68/9df17907245f4d1bb10fbb062f06762c [2023-11-30 05:34:26,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 05:34:26,831 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 05:34:26,832 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 05:34:26,832 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 05:34:26,834 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 05:34:26,835 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 05:34:26" (1/1) ... [2023-11-30 05:34:26,835 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17726dbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 05:34:26, skipping insertion in model container [2023-11-30 05:34:26,835 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 05:34:26" (1/1) ... [2023-11-30 05:34:26,848 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 05:34:26,952 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 05:34:26,959 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 05:34:26,973 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 05:34:26,978 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 05:34:26,978 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 05:34:26,984 INFO L206 MainTranslator]: Completed translation [2023-11-30 05:34:26,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 05:34:26 WrapperNode [2023-11-30 05:34:26,984 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 05:34:26,985 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 05:34:26,985 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 05:34:26,985 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 05:34:26,989 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 05:34:26" (1/1) ... [2023-11-30 05:34:26,994 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 05:34:26" (1/1) ... [2023-11-30 05:34:27,004 INFO L138 Inliner]: procedures = 22, calls = 38, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2023-11-30 05:34:27,004 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 05:34:27,005 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 05:34:27,005 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 05:34:27,005 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 05:34:27,010 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 05:34:26" (1/1) ... [2023-11-30 05:34:27,010 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 05:34:26" (1/1) ... [2023-11-30 05:34:27,012 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 05:34:26" (1/1) ... [2023-11-30 05:34:27,012 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 05:34:26" (1/1) ... [2023-11-30 05:34:27,016 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 05:34:26" (1/1) ... [2023-11-30 05:34:27,018 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 05:34:26" (1/1) ... [2023-11-30 05:34:27,019 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 05:34:26" (1/1) ... [2023-11-30 05:34:27,020 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 05:34:26" (1/1) ... [2023-11-30 05:34:27,021 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 05:34:27,022 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 05:34:27,022 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 05:34:27,022 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 05:34:27,022 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 05:34:26" (1/1) ... [2023-11-30 05:34:27,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 05:34:27,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 05:34:27,042 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) [2023-11-30 05:34:27,060 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 [2023-11-30 05:34:27,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 05:34:27,065 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-30 05:34:27,065 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-30 05:34:27,065 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-30 05:34:27,065 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-30 05:34:27,065 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-30 05:34:27,065 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-30 05:34:27,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 05:34:27,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 05:34:27,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 05:34:27,066 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-30 05:34:27,066 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-30 05:34:27,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 05:34:27,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 05:34:27,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 05:34:27,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 05:34:27,067 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-30 05:34:27,124 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 05:34:27,125 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 05:34:27,305 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 05:34:27,328 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 05:34:27,328 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-30 05:34:27,329 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 05:34:27 BoogieIcfgContainer [2023-11-30 05:34:27,329 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 05:34:27,330 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 05:34:27,330 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 05:34:27,332 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 05:34:27,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 05:34:26" (1/3) ... [2023-11-30 05:34:27,333 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@456f8016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 05:34:27, skipping insertion in model container [2023-11-30 05:34:27,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 05:34:26" (2/3) ... [2023-11-30 05:34:27,333 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@456f8016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 05:34:27, skipping insertion in model container [2023-11-30 05:34:27,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 05:34:27" (3/3) ... [2023-11-30 05:34:27,334 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-3-extended.wvr.c [2023-11-30 05:34:27,346 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 05:34:27,346 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-11-30 05:34:27,346 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 05:34:27,420 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-30 05:34:27,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 139 places, 145 transitions, 311 flow [2023-11-30 05:34:27,492 INFO L124 PetriNetUnfolderBase]: 16/142 cut-off events. [2023-11-30 05:34:27,492 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-30 05:34:27,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 142 events. 16/142 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 210 event pairs, 0 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 87. Up to 4 conditions per place. [2023-11-30 05:34:27,497 INFO L82 GeneralOperation]: Start removeDead. Operand has 139 places, 145 transitions, 311 flow [2023-11-30 05:34:27,500 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 113 places, 118 transitions, 251 flow [2023-11-30 05:34:27,507 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 05:34:27,512 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;@52d7b42b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 05:34:27,512 INFO L363 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-30 05:34:27,523 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 05:34:27,523 INFO L124 PetriNetUnfolderBase]: 0/27 cut-off events. [2023-11-30 05:34:27,523 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 05:34:27,523 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 05:34:27,524 INFO L232 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] [2023-11-30 05:34:27,524 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)] === [2023-11-30 05:34:27,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 05:34:27,528 INFO L85 PathProgramCache]: Analyzing trace with hash -648805003, now seen corresponding path program 1 times [2023-11-30 05:34:27,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 05:34:27,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977837954] [2023-11-30 05:34:27,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 05:34:27,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 05:34:27,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 05:34:27,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 05:34:27,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 05:34:27,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977837954] [2023-11-30 05:34:27,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977837954] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 05:34:27,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 05:34:27,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 05:34:27,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815862147] [2023-11-30 05:34:27,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 05:34:27,857 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 05:34:27,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 05:34:27,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 05:34:27,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 05:34:27,885 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 145 [2023-11-30 05:34:27,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 118 transitions, 251 flow. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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) [2023-11-30 05:34:27,889 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 05:34:27,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 145 [2023-11-30 05:34:27,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 05:34:28,000 INFO L124 PetriNetUnfolderBase]: 57/227 cut-off events. [2023-11-30 05:34:28,001 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-30 05:34:28,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 312 conditions, 227 events. 57/227 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 766 event pairs, 8 based on Foata normal form. 43/231 useless extension candidates. Maximal degree in co-relation 245. Up to 63 conditions per place. [2023-11-30 05:34:28,008 INFO L140 encePairwiseOnDemand]: 139/145 looper letters, 25 selfloop transitions, 1 changer transitions 0/113 dead transitions. [2023-11-30 05:34:28,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 113 transitions, 293 flow [2023-11-30 05:34:28,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 05:34:28,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 05:34:28,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 349 transitions. [2023-11-30 05:34:28,021 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8022988505747126 [2023-11-30 05:34:28,021 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 349 transitions. [2023-11-30 05:34:28,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 349 transitions. [2023-11-30 05:34:28,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 05:34:28,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 349 transitions. [2023-11-30 05:34:28,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 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) [2023-11-30 05:34:28,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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) [2023-11-30 05:34:28,033 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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) [2023-11-30 05:34:28,036 INFO L307 CegarLoopForPetriNet]: 113 programPoint places, 0 predicate places. [2023-11-30 05:34:28,036 INFO L500 AbstractCegarLoop]: Abstraction has has 113 places, 113 transitions, 293 flow [2023-11-30 05:34:28,037 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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) [2023-11-30 05:34:28,037 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 05:34:28,037 INFO L232 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] [2023-11-30 05:34:28,037 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 05:34:28,038 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)] === [2023-11-30 05:34:28,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 05:34:28,039 INFO L85 PathProgramCache]: Analyzing trace with hash -648805002, now seen corresponding path program 1 times [2023-11-30 05:34:28,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 05:34:28,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991306830] [2023-11-30 05:34:28,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 05:34:28,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 05:34:28,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 05:34:28,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 05:34:28,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 05:34:28,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991306830] [2023-11-30 05:34:28,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991306830] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 05:34:28,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 05:34:28,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 05:34:28,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225163941] [2023-11-30 05:34:28,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 05:34:28,241 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 05:34:28,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 05:34:28,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 05:34:28,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 05:34:28,243 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 145 [2023-11-30 05:34:28,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 113 transitions, 293 flow. Second operand has 4 states, 4 states have (on average 104.0) internal successors, (416), 4 states have internal predecessors, (416), 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) [2023-11-30 05:34:28,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 05:34:28,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 145 [2023-11-30 05:34:28,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 05:34:28,327 INFO L124 PetriNetUnfolderBase]: 63/244 cut-off events. [2023-11-30 05:34:28,327 INFO L125 PetriNetUnfolderBase]: For 31/35 co-relation queries the response was YES. [2023-11-30 05:34:28,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 405 conditions, 244 events. 63/244 cut-off events. For 31/35 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 898 event pairs, 9 based on Foata normal form. 0/204 useless extension candidates. Maximal degree in co-relation 321. Up to 70 conditions per place. [2023-11-30 05:34:28,330 INFO L140 encePairwiseOnDemand]: 142/145 looper letters, 27 selfloop transitions, 1 changer transitions 0/111 dead transitions. [2023-11-30 05:34:28,330 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 111 transitions, 341 flow [2023-11-30 05:34:28,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 05:34:28,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 05:34:28,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 336 transitions. [2023-11-30 05:34:28,333 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7724137931034483 [2023-11-30 05:34:28,333 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 336 transitions. [2023-11-30 05:34:28,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 336 transitions. [2023-11-30 05:34:28,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 05:34:28,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 336 transitions. [2023-11-30 05:34:28,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 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) [2023-11-30 05:34:28,336 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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) [2023-11-30 05:34:28,336 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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) [2023-11-30 05:34:28,337 INFO L307 CegarLoopForPetriNet]: 113 programPoint places, 0 predicate places. [2023-11-30 05:34:28,337 INFO L500 AbstractCegarLoop]: Abstraction has has 113 places, 111 transitions, 341 flow [2023-11-30 05:34:28,337 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 104.0) internal successors, (416), 4 states have internal predecessors, (416), 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) [2023-11-30 05:34:28,338 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 05:34:28,338 INFO L232 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] [2023-11-30 05:34:28,338 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 05:34:28,338 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)] === [2023-11-30 05:34:28,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 05:34:28,339 INFO L85 PathProgramCache]: Analyzing trace with hash -483533316, now seen corresponding path program 1 times [2023-11-30 05:34:28,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 05:34:28,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022316725] [2023-11-30 05:34:28,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 05:34:28,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 05:34:28,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 05:34:28,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 05:34:28,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 05:34:28,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022316725] [2023-11-30 05:34:28,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022316725] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 05:34:28,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 05:34:28,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 05:34:28,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797503238] [2023-11-30 05:34:28,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 05:34:28,463 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 05:34:28,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 05:34:28,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 05:34:28,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 05:34:28,464 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 145 [2023-11-30 05:34:28,465 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 111 transitions, 341 flow. Second operand has 4 states, 4 states have (on average 104.5) internal successors, (418), 4 states have internal predecessors, (418), 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) [2023-11-30 05:34:28,465 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 05:34:28,465 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 145 [2023-11-30 05:34:28,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 05:34:28,525 INFO L124 PetriNetUnfolderBase]: 51/200 cut-off events. [2023-11-30 05:34:28,526 INFO L125 PetriNetUnfolderBase]: For 64/72 co-relation queries the response was YES. [2023-11-30 05:34:28,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 397 conditions, 200 events. 51/200 cut-off events. For 64/72 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 589 event pairs, 7 based on Foata normal form. 3/174 useless extension candidates. Maximal degree in co-relation 301. Up to 56 conditions per place. [2023-11-30 05:34:28,528 INFO L140 encePairwiseOnDemand]: 140/145 looper letters, 23 selfloop transitions, 1 changer transitions 0/107 dead transitions. [2023-11-30 05:34:28,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 107 transitions, 369 flow [2023-11-30 05:34:28,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 05:34:28,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 05:34:28,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 334 transitions. [2023-11-30 05:34:28,530 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.767816091954023 [2023-11-30 05:34:28,530 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 334 transitions. [2023-11-30 05:34:28,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 334 transitions. [2023-11-30 05:34:28,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 05:34:28,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 334 transitions. [2023-11-30 05:34:28,531 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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) [2023-11-30 05:34:28,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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) [2023-11-30 05:34:28,532 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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) [2023-11-30 05:34:28,534 INFO L307 CegarLoopForPetriNet]: 113 programPoint places, -2 predicate places. [2023-11-30 05:34:28,534 INFO L500 AbstractCegarLoop]: Abstraction has has 111 places, 107 transitions, 369 flow [2023-11-30 05:34:28,534 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 104.5) internal successors, (418), 4 states have internal predecessors, (418), 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) [2023-11-30 05:34:28,534 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 05:34:28,534 INFO L232 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] [2023-11-30 05:34:28,534 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 05:34:28,535 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2023-11-30 05:34:28,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 05:34:28,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1384238339, now seen corresponding path program 1 times [2023-11-30 05:34:28,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 05:34:28,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885703103] [2023-11-30 05:34:28,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 05:34:28,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 05:34:28,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 05:34:28,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 05:34:28,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 05:34:28,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885703103] [2023-11-30 05:34:28,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885703103] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 05:34:28,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 05:34:28,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 05:34:28,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516780366] [2023-11-30 05:34:28,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 05:34:28,600 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 05:34:28,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 05:34:28,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 05:34:28,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 05:34:28,617 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 145 [2023-11-30 05:34:28,617 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 107 transitions, 369 flow. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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) [2023-11-30 05:34:28,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 05:34:28,617 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 145 [2023-11-30 05:34:28,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 05:34:28,661 INFO L124 PetriNetUnfolderBase]: 47/193 cut-off events. [2023-11-30 05:34:28,661 INFO L125 PetriNetUnfolderBase]: For 115/127 co-relation queries the response was YES. [2023-11-30 05:34:28,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 425 conditions, 193 events. 47/193 cut-off events. For 115/127 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 561 event pairs, 6 based on Foata normal form. 3/167 useless extension candidates. Maximal degree in co-relation 317. Up to 49 conditions per place. [2023-11-30 05:34:28,664 INFO L140 encePairwiseOnDemand]: 142/145 looper letters, 20 selfloop transitions, 1 changer transitions 0/105 dead transitions. [2023-11-30 05:34:28,664 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 105 transitions, 399 flow [2023-11-30 05:34:28,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 05:34:28,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 05:34:28,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 350 transitions. [2023-11-30 05:34:28,665 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8045977011494253 [2023-11-30 05:34:28,665 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 350 transitions. [2023-11-30 05:34:28,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 350 transitions. [2023-11-30 05:34:28,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 05:34:28,665 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 350 transitions. [2023-11-30 05:34:28,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 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) [2023-11-30 05:34:28,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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) [2023-11-30 05:34:28,668 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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) [2023-11-30 05:34:28,669 INFO L307 CegarLoopForPetriNet]: 113 programPoint places, -2 predicate places. [2023-11-30 05:34:28,669 INFO L500 AbstractCegarLoop]: Abstraction has has 111 places, 105 transitions, 399 flow [2023-11-30 05:34:28,669 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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) [2023-11-30 05:34:28,669 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 05:34:28,669 INFO L232 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] [2023-11-30 05:34:28,670 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 05:34:28,670 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2023-11-30 05:34:28,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 05:34:28,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1384238338, now seen corresponding path program 1 times [2023-11-30 05:34:28,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 05:34:28,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980447839] [2023-11-30 05:34:28,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 05:34:28,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 05:34:28,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 05:34:28,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 05:34:28,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 05:34:28,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980447839] [2023-11-30 05:34:28,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980447839] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 05:34:28,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 05:34:28,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 05:34:28,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609349953] [2023-11-30 05:34:28,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 05:34:28,713 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 05:34:28,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 05:34:28,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 05:34:28,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 05:34:28,715 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 145 [2023-11-30 05:34:28,715 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 105 transitions, 399 flow. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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) [2023-11-30 05:34:28,715 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 05:34:28,715 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 145 [2023-11-30 05:34:28,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 05:34:28,750 INFO L124 PetriNetUnfolderBase]: 43/186 cut-off events. [2023-11-30 05:34:28,750 INFO L125 PetriNetUnfolderBase]: For 174/190 co-relation queries the response was YES. [2023-11-30 05:34:28,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 437 conditions, 186 events. 43/186 cut-off events. For 174/190 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 528 event pairs, 5 based on Foata normal form. 0/160 useless extension candidates. Maximal degree in co-relation 319. Up to 42 conditions per place. [2023-11-30 05:34:28,751 INFO L140 encePairwiseOnDemand]: 142/145 looper letters, 0 selfloop transitions, 0 changer transitions 103/103 dead transitions. [2023-11-30 05:34:28,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 103 transitions, 419 flow [2023-11-30 05:34:28,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 05:34:28,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 05:34:28,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 340 transitions. [2023-11-30 05:34:28,752 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7816091954022989 [2023-11-30 05:34:28,753 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 340 transitions. [2023-11-30 05:34:28,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 340 transitions. [2023-11-30 05:34:28,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 05:34:28,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 340 transitions. [2023-11-30 05:34:28,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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) [2023-11-30 05:34:28,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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) [2023-11-30 05:34:28,755 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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) [2023-11-30 05:34:28,756 INFO L307 CegarLoopForPetriNet]: 113 programPoint places, -2 predicate places. [2023-11-30 05:34:28,756 INFO L500 AbstractCegarLoop]: Abstraction has has 111 places, 103 transitions, 419 flow [2023-11-30 05:34:28,757 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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) [2023-11-30 05:34:28,765 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/parallel-misc-3-extended.wvr.c_BEv2_AllErrorsAtOnce [2023-11-30 05:34:28,794 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 15 remaining) [2023-11-30 05:34:28,795 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 15 remaining) [2023-11-30 05:34:28,795 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 15 remaining) [2023-11-30 05:34:28,795 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 15 remaining) [2023-11-30 05:34:28,795 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 15 remaining) [2023-11-30 05:34:28,795 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 15 remaining) [2023-11-30 05:34:28,795 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 15 remaining) [2023-11-30 05:34:28,795 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 15 remaining) [2023-11-30 05:34:28,795 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 15 remaining) [2023-11-30 05:34:28,796 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 15 remaining) [2023-11-30 05:34:28,796 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 15 remaining) [2023-11-30 05:34:28,796 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 15 remaining) [2023-11-30 05:34:28,796 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 15 remaining) [2023-11-30 05:34:28,796 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 15 remaining) [2023-11-30 05:34:28,796 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 15 remaining) [2023-11-30 05:34:28,796 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-30 05:34:28,797 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-30 05:34:28,799 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 05:34:28,799 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 05:34:28,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 05:34:28 BasicIcfg [2023-11-30 05:34:28,805 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 05:34:28,806 INFO L158 Benchmark]: Toolchain (without parser) took 1974.85ms. Allocated memory was 339.7MB in the beginning and 415.2MB in the end (delta: 75.5MB). Free memory was 301.4MB in the beginning and 208.9MB in the end (delta: 92.4MB). Peak memory consumption was 171.1MB. Max. memory is 16.0GB. [2023-11-30 05:34:28,806 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 339.7MB. Free memory is still 295.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 05:34:28,806 INFO L158 Benchmark]: CACSL2BoogieTranslator took 152.90ms. Allocated memory is still 339.7MB. Free memory was 301.4MB in the beginning and 289.5MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-11-30 05:34:28,807 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.62ms. Allocated memory is still 339.7MB. Free memory was 289.5MB in the beginning and 287.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 05:34:28,807 INFO L158 Benchmark]: Boogie Preprocessor took 16.34ms. Allocated memory is still 339.7MB. Free memory was 287.2MB in the beginning and 285.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 05:34:28,807 INFO L158 Benchmark]: RCFGBuilder took 307.47ms. Allocated memory is still 339.7MB. Free memory was 285.5MB in the beginning and 268.0MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-11-30 05:34:28,807 INFO L158 Benchmark]: TraceAbstraction took 1475.07ms. Allocated memory was 339.7MB in the beginning and 415.2MB in the end (delta: 75.5MB). Free memory was 267.0MB in the beginning and 208.9MB in the end (delta: 58.1MB). Peak memory consumption was 135.4MB. Max. memory is 16.0GB. [2023-11-30 05:34:28,809 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 339.7MB. Free memory is still 295.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 152.90ms. Allocated memory is still 339.7MB. Free memory was 301.4MB in the beginning and 289.5MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 19.62ms. Allocated memory is still 339.7MB. Free memory was 289.5MB in the beginning and 287.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 16.34ms. Allocated memory is still 339.7MB. Free memory was 287.2MB in the beginning and 285.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 307.47ms. Allocated memory is still 339.7MB. Free memory was 285.5MB in the beginning and 268.0MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 1475.07ms. Allocated memory was 339.7MB in the beginning and 415.2MB in the end (delta: 75.5MB). Free memory was 267.0MB in the beginning and 208.9MB in the end (delta: 58.1MB). Peak memory consumption was 135.4MB. Max. memory is 16.0GB. * 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, 178 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: 1.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 92 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 92 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 116 IncrementalHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 29 mSDtfsCounter, 116 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=419occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 165 NumberOfCodeBlocks, 165 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 160 ConstructedInterpolants, 0 QuantifiedInterpolants, 682 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! [2023-11-30 05:34:28,835 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...