/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/parallel-misc-5.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-6bf5761-m [2023-12-05 21:20:09,828 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-05 21:20:09,886 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 21:20:09,913 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-05 21:20:09,913 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-05 21:20:09,914 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-05 21:20:09,914 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-05 21:20:09,914 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-05 21:20:09,915 INFO L153 SettingsManager]: * Use SBE=true [2023-12-05 21:20:09,918 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-05 21:20:09,918 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-05 21:20:09,918 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-05 21:20:09,918 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-05 21:20:09,919 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-05 21:20:09,920 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-05 21:20:09,920 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-05 21:20:09,920 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-05 21:20:09,920 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-05 21:20:09,920 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-05 21:20:09,920 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-05 21:20:09,920 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-05 21:20:09,921 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-05 21:20:09,921 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-05 21:20:09,921 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-05 21:20:09,922 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-05 21:20:09,922 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-05 21:20:09,922 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-05 21:20:09,922 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-05 21:20:09,922 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-05 21:20:09,922 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-05 21:20:09,923 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-05 21:20:09,923 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-05 21:20:09,923 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-05 21:20:09,923 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer base address is valid at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer to allocated memory at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check array bounds for arrays that are off heap -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check if freed pointer was valid -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2023-12-05 21:20:10,110 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-05 21:20:10,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-05 21:20:10,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-05 21:20:10,132 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-05 21:20:10,132 INFO L274 PluginConnector]: CDTParser initialized [2023-12-05 21:20:10,133 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-5.wvr.c [2023-12-05 21:20:11,093 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-05 21:20:11,236 INFO L384 CDTParser]: Found 1 translation units. [2023-12-05 21:20:11,236 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-5.wvr.c [2023-12-05 21:20:11,242 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d8aad419/9e183cd649ad4371a3abd507f0e575eb/FLAG4b0b00ca8 [2023-12-05 21:20:11,255 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d8aad419/9e183cd649ad4371a3abd507f0e575eb [2023-12-05 21:20:11,257 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-05 21:20:11,258 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-05 21:20:11,260 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-05 21:20:11,260 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-05 21:20:11,263 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-05 21:20:11,264 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:20:11" (1/1) ... [2023-12-05 21:20:11,265 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42765976 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:20:11, skipping insertion in model container [2023-12-05 21:20:11,265 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:20:11" (1/1) ... [2023-12-05 21:20:11,282 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-05 21:20:11,393 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-05 21:20:11,400 INFO L202 MainTranslator]: Completed pre-run [2023-12-05 21:20:11,424 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-05 21:20:11,429 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-05 21:20:11,429 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-05 21:20:11,434 INFO L206 MainTranslator]: Completed translation [2023-12-05 21:20:11,434 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:20:11 WrapperNode [2023-12-05 21:20:11,434 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-05 21:20:11,435 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-05 21:20:11,435 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-05 21:20:11,435 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-05 21:20:11,442 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:20:11" (1/1) ... [2023-12-05 21:20:11,455 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:20:11" (1/1) ... [2023-12-05 21:20:11,479 INFO L138 Inliner]: procedures = 22, calls = 46, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 152 [2023-12-05 21:20:11,480 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-05 21:20:11,480 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-05 21:20:11,480 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-05 21:20:11,481 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-05 21:20:11,486 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:20:11" (1/1) ... [2023-12-05 21:20:11,487 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:20:11" (1/1) ... [2023-12-05 21:20:11,488 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:20:11" (1/1) ... [2023-12-05 21:20:11,489 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:20:11" (1/1) ... [2023-12-05 21:20:11,492 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:20:11" (1/1) ... [2023-12-05 21:20:11,494 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:20:11" (1/1) ... [2023-12-05 21:20:11,499 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:20:11" (1/1) ... [2023-12-05 21:20:11,500 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:20:11" (1/1) ... [2023-12-05 21:20:11,502 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-05 21:20:11,502 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-05 21:20:11,502 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-05 21:20:11,502 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-05 21:20:11,503 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:20:11" (1/1) ... [2023-12-05 21:20:11,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-05 21:20:11,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-05 21:20:11,560 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 21:20:11,562 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 21:20:11,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-05 21:20:11,581 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-05 21:20:11,581 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-05 21:20:11,581 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-05 21:20:11,582 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-05 21:20:11,582 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-12-05 21:20:11,582 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-12-05 21:20:11,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-05 21:20:11,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-05 21:20:11,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-05 21:20:11,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-05 21:20:11,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-05 21:20:11,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-05 21:20:11,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-05 21:20:11,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-05 21:20:11,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-05 21:20:11,584 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 21:20:11,680 INFO L241 CfgBuilder]: Building ICFG [2023-12-05 21:20:11,681 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-05 21:20:11,944 INFO L282 CfgBuilder]: Performing block encoding [2023-12-05 21:20:11,989 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-05 21:20:11,989 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-05 21:20:11,990 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:20:11 BoogieIcfgContainer [2023-12-05 21:20:11,990 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-05 21:20:11,992 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-05 21:20:11,992 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-05 21:20:11,994 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-05 21:20:11,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 09:20:11" (1/3) ... [2023-12-05 21:20:11,994 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@656cdde5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:20:11, skipping insertion in model container [2023-12-05 21:20:11,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:20:11" (2/3) ... [2023-12-05 21:20:11,994 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@656cdde5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:20:11, skipping insertion in model container [2023-12-05 21:20:11,995 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:20:11" (3/3) ... [2023-12-05 21:20:11,995 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-5.wvr.c [2023-12-05 21:20:12,010 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-05 21:20:12,010 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-12-05 21:20:12,010 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-05 21:20:12,082 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-12-05 21:20:12,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 128 transitions, 277 flow [2023-12-05 21:20:12,136 INFO L124 PetriNetUnfolderBase]: 7/125 cut-off events. [2023-12-05 21:20:12,137 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-12-05 21:20:12,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 125 events. 7/125 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 140 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2023-12-05 21:20:12,141 INFO L82 GeneralOperation]: Start removeDead. Operand has 131 places, 128 transitions, 277 flow [2023-12-05 21:20:12,143 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 111 places, 108 transitions, 231 flow [2023-12-05 21:20:12,149 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-05 21:20:12,153 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;@4fd4a8c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-05 21:20:12,153 INFO L363 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-12-05 21:20:12,160 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-05 21:20:12,160 INFO L124 PetriNetUnfolderBase]: 1/41 cut-off events. [2023-12-05 21:20:12,160 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-05 21:20:12,160 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:20:12,160 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] [2023-12-05 21:20:12,161 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 21:20:12,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:20:12,164 INFO L85 PathProgramCache]: Analyzing trace with hash -2009551414, now seen corresponding path program 1 times [2023-12-05 21:20:12,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:20:12,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056451837] [2023-12-05 21:20:12,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:20:12,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:20:12,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:20:12,547 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 21:20:12,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:20:12,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056451837] [2023-12-05 21:20:12,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056451837] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:20:12,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:20:12,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:20:12,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385161001] [2023-12-05 21:20:12,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:20:12,555 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:20:12,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:20:12,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:20:12,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:20:12,576 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 128 [2023-12-05 21:20:12,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 108 transitions, 231 flow. Second operand has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 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 21:20:12,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:20:12,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 128 [2023-12-05 21:20:12,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:20:12,672 INFO L124 PetriNetUnfolderBase]: 60/217 cut-off events. [2023-12-05 21:20:12,672 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-12-05 21:20:12,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 343 conditions, 217 events. 60/217 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 731 event pairs, 27 based on Foata normal form. 31/214 useless extension candidates. Maximal degree in co-relation 247. Up to 100 conditions per place. [2023-12-05 21:20:12,679 INFO L140 encePairwiseOnDemand]: 122/128 looper letters, 26 selfloop transitions, 1 changer transitions 1/103 dead transitions. [2023-12-05 21:20:12,680 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 103 transitions, 275 flow [2023-12-05 21:20:12,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:20:12,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:20:12,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 296 transitions. [2023-12-05 21:20:12,689 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7708333333333334 [2023-12-05 21:20:12,690 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 296 transitions. [2023-12-05 21:20:12,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 296 transitions. [2023-12-05 21:20:12,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:20:12,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 296 transitions. [2023-12-05 21:20:12,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 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 21:20:12,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 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 21:20:12,702 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 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 21:20:12,707 INFO L308 CegarLoopForPetriNet]: 111 programPoint places, 0 predicate places. [2023-12-05 21:20:12,707 INFO L500 AbstractCegarLoop]: Abstraction has has 111 places, 103 transitions, 275 flow [2023-12-05 21:20:12,708 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 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 21:20:12,708 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:20:12,708 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] [2023-12-05 21:20:12,709 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-05 21:20:12,709 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 21:20:12,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:20:12,710 INFO L85 PathProgramCache]: Analyzing trace with hash -2009551413, now seen corresponding path program 1 times [2023-12-05 21:20:12,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:20:12,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304239373] [2023-12-05 21:20:12,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:20:12,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:20:12,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:20:12,978 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 21:20:12,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:20:12,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304239373] [2023-12-05 21:20:12,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304239373] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:20:12,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:20:12,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-05 21:20:12,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222772113] [2023-12-05 21:20:12,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:20:12,980 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-05 21:20:12,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:20:12,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-05 21:20:12,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-05 21:20:12,981 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 128 [2023-12-05 21:20:12,982 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 103 transitions, 275 flow. Second operand has 4 states, 4 states have (on average 86.0) internal successors, (344), 4 states have internal predecessors, (344), 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 21:20:12,982 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:20:12,982 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 128 [2023-12-05 21:20:12,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:20:13,064 INFO L124 PetriNetUnfolderBase]: 64/219 cut-off events. [2023-12-05 21:20:13,065 INFO L125 PetriNetUnfolderBase]: For 49/111 co-relation queries the response was YES. [2023-12-05 21:20:13,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 457 conditions, 219 events. 64/219 cut-off events. For 49/111 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 748 event pairs, 29 based on Foata normal form. 0/184 useless extension candidates. Maximal degree in co-relation 330. Up to 108 conditions per place. [2023-12-05 21:20:13,067 INFO L140 encePairwiseOnDemand]: 125/128 looper letters, 28 selfloop transitions, 1 changer transitions 1/101 dead transitions. [2023-12-05 21:20:13,068 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 101 transitions, 325 flow [2023-12-05 21:20:13,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:20:13,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:20:13,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 283 transitions. [2023-12-05 21:20:13,073 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7369791666666666 [2023-12-05 21:20:13,073 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 283 transitions. [2023-12-05 21:20:13,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 283 transitions. [2023-12-05 21:20:13,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:20:13,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 283 transitions. [2023-12-05 21:20:13,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 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 21:20:13,076 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 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 21:20:13,077 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 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 21:20:13,077 INFO L308 CegarLoopForPetriNet]: 111 programPoint places, 0 predicate places. [2023-12-05 21:20:13,077 INFO L500 AbstractCegarLoop]: Abstraction has has 111 places, 101 transitions, 325 flow [2023-12-05 21:20:13,078 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.0) internal successors, (344), 4 states have internal predecessors, (344), 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 21:20:13,078 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:20:13,078 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] [2023-12-05 21:20:13,078 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-05 21:20:13,078 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 21:20:13,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:20:13,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1437588911, now seen corresponding path program 1 times [2023-12-05 21:20:13,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:20:13,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028202725] [2023-12-05 21:20:13,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:20:13,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:20:13,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:20:13,211 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 21:20:13,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:20:13,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028202725] [2023-12-05 21:20:13,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028202725] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:20:13,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:20:13,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-05 21:20:13,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160990486] [2023-12-05 21:20:13,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:20:13,217 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-05 21:20:13,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:20:13,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-05 21:20:13,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-05 21:20:13,220 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 128 [2023-12-05 21:20:13,220 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 101 transitions, 325 flow. Second operand has 4 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 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 21:20:13,220 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:20:13,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 128 [2023-12-05 21:20:13,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:20:13,278 INFO L124 PetriNetUnfolderBase]: 56/203 cut-off events. [2023-12-05 21:20:13,278 INFO L125 PetriNetUnfolderBase]: For 121/225 co-relation queries the response was YES. [2023-12-05 21:20:13,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 510 conditions, 203 events. 56/203 cut-off events. For 121/225 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 629 event pairs, 25 based on Foata normal form. 4/180 useless extension candidates. Maximal degree in co-relation 384. Up to 92 conditions per place. [2023-12-05 21:20:13,280 INFO L140 encePairwiseOnDemand]: 123/128 looper letters, 24 selfloop transitions, 1 changer transitions 1/97 dead transitions. [2023-12-05 21:20:13,280 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 97 transitions, 355 flow [2023-12-05 21:20:13,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:20:13,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:20:13,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 281 transitions. [2023-12-05 21:20:13,281 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7317708333333334 [2023-12-05 21:20:13,281 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 281 transitions. [2023-12-05 21:20:13,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 281 transitions. [2023-12-05 21:20:13,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:20:13,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 281 transitions. [2023-12-05 21:20:13,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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 21:20:13,283 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 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 21:20:13,284 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 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 21:20:13,284 INFO L308 CegarLoopForPetriNet]: 111 programPoint places, -2 predicate places. [2023-12-05 21:20:13,285 INFO L500 AbstractCegarLoop]: Abstraction has has 109 places, 97 transitions, 355 flow [2023-12-05 21:20:13,285 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 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 21:20:13,285 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:20:13,285 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] [2023-12-05 21:20:13,285 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-05 21:20:13,286 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 21:20:13,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:20:13,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1371062470, now seen corresponding path program 1 times [2023-12-05 21:20:13,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:20:13,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462457084] [2023-12-05 21:20:13,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:20:13,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:20:13,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:20:13,341 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 21:20:13,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:20:13,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462457084] [2023-12-05 21:20:13,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462457084] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:20:13,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:20:13,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:20:13,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946857783] [2023-12-05 21:20:13,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:20:13,343 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:20:13,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:20:13,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:20:13,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:20:13,347 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 128 [2023-12-05 21:20:13,347 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 97 transitions, 355 flow. Second operand has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 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 21:20:13,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:20:13,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 128 [2023-12-05 21:20:13,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:20:13,390 INFO L124 PetriNetUnfolderBase]: 48/190 cut-off events. [2023-12-05 21:20:13,390 INFO L125 PetriNetUnfolderBase]: For 208/304 co-relation queries the response was YES. [2023-12-05 21:20:13,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 542 conditions, 190 events. 48/190 cut-off events. For 208/304 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 572 event pairs, 21 based on Foata normal form. 1/172 useless extension candidates. Maximal degree in co-relation 400. Up to 79 conditions per place. [2023-12-05 21:20:13,393 INFO L140 encePairwiseOnDemand]: 125/128 looper letters, 22 selfloop transitions, 1 changer transitions 1/95 dead transitions. [2023-12-05 21:20:13,393 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 95 transitions, 385 flow [2023-12-05 21:20:13,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:20:13,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:20:13,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 289 transitions. [2023-12-05 21:20:13,394 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7526041666666666 [2023-12-05 21:20:13,394 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 289 transitions. [2023-12-05 21:20:13,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 289 transitions. [2023-12-05 21:20:13,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:20:13,395 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 289 transitions. [2023-12-05 21:20:13,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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 21:20:13,396 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 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 21:20:13,397 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 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 21:20:13,399 INFO L308 CegarLoopForPetriNet]: 111 programPoint places, -2 predicate places. [2023-12-05 21:20:13,399 INFO L500 AbstractCegarLoop]: Abstraction has has 109 places, 95 transitions, 385 flow [2023-12-05 21:20:13,399 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 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 21:20:13,399 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:20:13,399 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] [2023-12-05 21:20:13,399 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-05 21:20:13,400 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 21:20:13,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:20:13,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1371062471, now seen corresponding path program 1 times [2023-12-05 21:20:13,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:20:13,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537484854] [2023-12-05 21:20:13,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:20:13,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:20:13,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:20:13,486 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 21:20:13,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:20:13,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537484854] [2023-12-05 21:20:13,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537484854] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:20:13,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:20:13,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:20:13,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628559806] [2023-12-05 21:20:13,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:20:13,487 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:20:13,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:20:13,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:20:13,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:20:13,489 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 128 [2023-12-05 21:20:13,490 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 95 transitions, 385 flow. Second operand has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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 21:20:13,490 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:20:13,490 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 128 [2023-12-05 21:20:13,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:20:13,527 INFO L124 PetriNetUnfolderBase]: 40/177 cut-off events. [2023-12-05 21:20:13,527 INFO L125 PetriNetUnfolderBase]: For 291/371 co-relation queries the response was YES. [2023-12-05 21:20:13,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 177 events. 40/177 cut-off events. For 291/371 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 523 event pairs, 17 based on Foata normal form. 5/167 useless extension candidates. Maximal degree in co-relation 396. Up to 66 conditions per place. [2023-12-05 21:20:13,529 INFO L140 encePairwiseOnDemand]: 125/128 looper letters, 0 selfloop transitions, 0 changer transitions 93/93 dead transitions. [2023-12-05 21:20:13,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 93 transitions, 409 flow [2023-12-05 21:20:13,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:20:13,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:20:13,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 295 transitions. [2023-12-05 21:20:13,530 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7682291666666666 [2023-12-05 21:20:13,530 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 295 transitions. [2023-12-05 21:20:13,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 295 transitions. [2023-12-05 21:20:13,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:20:13,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 295 transitions. [2023-12-05 21:20:13,531 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 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 21:20:13,531 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 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 21:20:13,532 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 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 21:20:13,533 INFO L308 CegarLoopForPetriNet]: 111 programPoint places, -2 predicate places. [2023-12-05 21:20:13,533 INFO L500 AbstractCegarLoop]: Abstraction has has 109 places, 93 transitions, 409 flow [2023-12-05 21:20:13,534 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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 21:20:13,541 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/parallel-misc-5.wvr.c_BEv2_AllErrorsAtOnce [2023-12-05 21:20:13,557 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 15 remaining) [2023-12-05 21:20:13,558 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 15 remaining) [2023-12-05 21:20:13,558 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 15 remaining) [2023-12-05 21:20:13,558 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 15 remaining) [2023-12-05 21:20:13,558 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 15 remaining) [2023-12-05 21:20:13,558 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 15 remaining) [2023-12-05 21:20:13,558 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 15 remaining) [2023-12-05 21:20:13,558 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 15 remaining) [2023-12-05 21:20:13,558 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 15 remaining) [2023-12-05 21:20:13,559 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 15 remaining) [2023-12-05 21:20:13,559 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 15 remaining) [2023-12-05 21:20:13,559 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 15 remaining) [2023-12-05 21:20:13,559 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 15 remaining) [2023-12-05 21:20:13,559 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 15 remaining) [2023-12-05 21:20:13,559 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 15 remaining) [2023-12-05 21:20:13,559 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-05 21:20:13,560 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-05 21:20:13,562 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-05 21:20:13,562 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-05 21:20:13,566 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 09:20:13 BasicIcfg [2023-12-05 21:20:13,566 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-05 21:20:13,566 INFO L158 Benchmark]: Toolchain (without parser) took 2308.79ms. Allocated memory is still 250.6MB. Free memory was 200.6MB in the beginning and 182.6MB in the end (delta: 18.0MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-05 21:20:13,567 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 203.4MB. Free memory is still 153.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-05 21:20:13,567 INFO L158 Benchmark]: CACSL2BoogieTranslator took 174.49ms. Allocated memory is still 250.6MB. Free memory was 200.6MB in the beginning and 189.1MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-05 21:20:13,567 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.79ms. Allocated memory is still 250.6MB. Free memory was 189.1MB in the beginning and 187.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-05 21:20:13,567 INFO L158 Benchmark]: Boogie Preprocessor took 21.29ms. Allocated memory is still 250.6MB. Free memory was 187.0MB in the beginning and 185.6MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-05 21:20:13,568 INFO L158 Benchmark]: RCFGBuilder took 487.97ms. Allocated memory is still 250.6MB. Free memory was 185.6MB in the beginning and 163.6MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2023-12-05 21:20:13,568 INFO L158 Benchmark]: TraceAbstraction took 1574.59ms. Allocated memory is still 250.6MB. Free memory was 162.8MB in the beginning and 182.6MB in the end (delta: -19.8MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-05 21:20:13,574 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 203.4MB. Free memory is still 153.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 174.49ms. Allocated memory is still 250.6MB. Free memory was 200.6MB in the beginning and 189.1MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.79ms. Allocated memory is still 250.6MB. Free memory was 189.1MB in the beginning and 187.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.29ms. Allocated memory is still 250.6MB. Free memory was 187.0MB in the beginning and 185.6MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 487.97ms. Allocated memory is still 250.6MB. Free memory was 185.6MB in the beginning and 163.6MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * TraceAbstraction took 1574.59ms. Allocated memory is still 250.6MB. Free memory was 162.8MB in the beginning and 182.6MB in the end (delta: -19.8MB). There was no memory consumed. 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, 156 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: 1.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 98 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 98 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 121 IncrementalHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 29 mSDtfsCounter, 121 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=409occurred 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, 0.7s InterpolantComputationTime, 225 NumberOfCodeBlocks, 225 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 220 ConstructedInterpolants, 0 QuantifiedInterpolants, 1222 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 21:20:13,589 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...