/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/pthread-wmm/mix045_power.oepc_pso.oepc_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 04:46:05,830 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 04:46:05,894 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 04:46:05,917 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 04:46:05,918 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 04:46:05,918 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 04:46:05,918 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 04:46:05,919 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 04:46:05,919 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 04:46:05,922 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 04:46:05,922 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 04:46:05,922 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 04:46:05,923 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 04:46:05,923 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 04:46:05,924 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 04:46:05,924 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 04:46:05,924 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 04:46:05,924 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 04:46:05,924 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 04:46:05,924 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 04:46:05,924 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 04:46:05,925 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 04:46:05,925 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 04:46:05,925 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 04:46:05,925 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 04:46:05,926 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 04:46:05,926 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 04:46:05,927 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 04:46:05,927 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 04:46:05,927 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 04:46:05,927 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 04:46:05,928 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 04:46:05,928 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 04:46:05,928 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer base address is valid at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer to allocated memory at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check array bounds for arrays that are off heap -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check if freed pointer was valid -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2023-11-30 04:46:06,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 04:46:06,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 04:46:06,117 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 04:46:06,118 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 04:46:06,118 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 04:46:06,119 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix045_power.oepc_pso.oepc_rmo.oepc.i [2023-11-30 04:46:07,160 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 04:46:07,373 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 04:46:07,374 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix045_power.oepc_pso.oepc_rmo.oepc.i [2023-11-30 04:46:07,386 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0e18524c/73a231c6374c45ba946557cf23f8ed63/FLAG14e813bf2 [2023-11-30 04:46:07,395 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0e18524c/73a231c6374c45ba946557cf23f8ed63 [2023-11-30 04:46:07,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 04:46:07,397 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 04:46:07,398 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 04:46:07,398 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 04:46:07,401 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 04:46:07,401 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 04:46:07" (1/1) ... [2023-11-30 04:46:07,402 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3169e121 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:07, skipping insertion in model container [2023-11-30 04:46:07,402 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 04:46:07" (1/1) ... [2023-11-30 04:46:07,436 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 04:46:07,652 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 04:46:07,659 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 04:46:07,695 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 04:46:07,712 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 04:46:07,712 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 04:46:07,716 INFO L206 MainTranslator]: Completed translation [2023-11-30 04:46:07,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:07 WrapperNode [2023-11-30 04:46:07,717 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 04:46:07,718 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 04:46:07,718 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 04:46:07,718 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 04:46:07,722 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:07" (1/1) ... [2023-11-30 04:46:07,745 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:07" (1/1) ... [2023-11-30 04:46:07,773 INFO L138 Inliner]: procedures = 176, calls = 59, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 134 [2023-11-30 04:46:07,773 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 04:46:07,774 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 04:46:07,774 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 04:46:07,774 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 04:46:07,780 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:07" (1/1) ... [2023-11-30 04:46:07,780 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:07" (1/1) ... [2023-11-30 04:46:07,792 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:07" (1/1) ... [2023-11-30 04:46:07,793 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:07" (1/1) ... [2023-11-30 04:46:07,804 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:07" (1/1) ... [2023-11-30 04:46:07,805 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:07" (1/1) ... [2023-11-30 04:46:07,806 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:07" (1/1) ... [2023-11-30 04:46:07,807 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:07" (1/1) ... [2023-11-30 04:46:07,809 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 04:46:07,810 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 04:46:07,810 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 04:46:07,810 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 04:46:07,821 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:07" (1/1) ... [2023-11-30 04:46:07,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 04:46:07,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 04:46:07,876 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 04:46:07,899 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 04:46:07,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 04:46:07,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-30 04:46:07,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 04:46:07,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 04:46:07,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 04:46:07,915 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-30 04:46:07,916 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-30 04:46:07,916 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-30 04:46:07,916 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-30 04:46:07,916 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-30 04:46:07,916 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-30 04:46:07,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 04:46:07,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-30 04:46:07,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 04:46:07,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 04:46:07,918 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 04:46:08,032 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 04:46:08,033 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 04:46:08,263 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 04:46:08,343 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 04:46:08,343 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-30 04:46:08,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 04:46:08 BoogieIcfgContainer [2023-11-30 04:46:08,344 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 04:46:08,346 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 04:46:08,346 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 04:46:08,347 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 04:46:08,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 04:46:07" (1/3) ... [2023-11-30 04:46:08,351 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d0024de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 04:46:08, skipping insertion in model container [2023-11-30 04:46:08,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:07" (2/3) ... [2023-11-30 04:46:08,352 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d0024de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 04:46:08, skipping insertion in model container [2023-11-30 04:46:08,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 04:46:08" (3/3) ... [2023-11-30 04:46:08,353 INFO L112 eAbstractionObserver]: Analyzing ICFG mix045_power.oepc_pso.oepc_rmo.oepc.i [2023-11-30 04:46:08,364 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 04:46:08,364 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-30 04:46:08,364 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 04:46:08,398 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-30 04:46:08,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 130 places, 123 transitions, 258 flow [2023-11-30 04:46:08,484 INFO L124 PetriNetUnfolderBase]: 3/120 cut-off events. [2023-11-30 04:46:08,484 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 04:46:08,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 120 events. 3/120 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 90 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 82. Up to 2 conditions per place. [2023-11-30 04:46:08,490 INFO L82 GeneralOperation]: Start removeDead. Operand has 130 places, 123 transitions, 258 flow [2023-11-30 04:46:08,499 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 72 transitions, 150 flow [2023-11-30 04:46:08,504 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 04:46:08,511 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;@65aa60f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 04:46:08,511 INFO L363 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-11-30 04:46:08,525 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 04:46:08,525 INFO L124 PetriNetUnfolderBase]: 0/39 cut-off events. [2023-11-30 04:46:08,525 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 04:46:08,525 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:46:08,525 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 04:46:08,526 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] === [2023-11-30 04:46:08,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:46:08,530 INFO L85 PathProgramCache]: Analyzing trace with hash -663954968, now seen corresponding path program 1 times [2023-11-30 04:46:08,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:46:08,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621630119] [2023-11-30 04:46:08,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:46:08,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:46:08,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:46:08,753 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 04:46:08,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:46:08,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621630119] [2023-11-30 04:46:08,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621630119] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:46:08,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:46:08,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:46:08,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808500466] [2023-11-30 04:46:08,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:46:08,764 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:46:08,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:46:08,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:46:08,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:46:08,790 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 123 [2023-11-30 04:46:08,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 72 transitions, 150 flow. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 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 04:46:08,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:46:08,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 123 [2023-11-30 04:46:08,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:46:08,873 INFO L124 PetriNetUnfolderBase]: 24/158 cut-off events. [2023-11-30 04:46:08,873 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-30 04:46:08,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 158 events. 24/158 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 499 event pairs, 24 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 176. Up to 57 conditions per place. [2023-11-30 04:46:08,875 INFO L140 encePairwiseOnDemand]: 121/123 looper letters, 16 selfloop transitions, 1 changer transitions 0/71 dead transitions. [2023-11-30 04:46:08,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 71 transitions, 182 flow [2023-11-30 04:46:08,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:46:08,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:46:08,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 291 transitions. [2023-11-30 04:46:08,889 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7886178861788617 [2023-11-30 04:46:08,890 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 291 transitions. [2023-11-30 04:46:08,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 291 transitions. [2023-11-30 04:46:08,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:46:08,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 291 transitions. [2023-11-30 04:46:08,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 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 04:46:08,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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 04:46:08,900 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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 04:46:08,903 INFO L307 CegarLoopForPetriNet]: 79 programPoint places, 1 predicate places. [2023-11-30 04:46:08,903 INFO L500 AbstractCegarLoop]: Abstraction has has 80 places, 71 transitions, 182 flow [2023-11-30 04:46:08,903 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 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 04:46:08,903 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:46:08,904 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 04:46:08,904 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 04:46:08,904 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] === [2023-11-30 04:46:08,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:46:08,905 INFO L85 PathProgramCache]: Analyzing trace with hash -663954967, now seen corresponding path program 1 times [2023-11-30 04:46:08,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:46:08,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073721527] [2023-11-30 04:46:08,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:46:08,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:46:08,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:46:09,010 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 04:46:09,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:46:09,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073721527] [2023-11-30 04:46:09,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073721527] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:46:09,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:46:09,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:46:09,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873294481] [2023-11-30 04:46:09,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:46:09,012 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:46:09,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:46:09,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:46:09,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:46:09,013 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 123 [2023-11-30 04:46:09,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 71 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 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 04:46:09,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:46:09,014 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 123 [2023-11-30 04:46:09,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:46:09,060 INFO L124 PetriNetUnfolderBase]: 33/172 cut-off events. [2023-11-30 04:46:09,060 INFO L125 PetriNetUnfolderBase]: For 38/42 co-relation queries the response was YES. [2023-11-30 04:46:09,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322 conditions, 172 events. 33/172 cut-off events. For 38/42 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 580 event pairs, 33 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 262. Up to 65 conditions per place. [2023-11-30 04:46:09,064 INFO L140 encePairwiseOnDemand]: 121/123 looper letters, 14 selfloop transitions, 1 changer transitions 0/70 dead transitions. [2023-11-30 04:46:09,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 70 transitions, 208 flow [2023-11-30 04:46:09,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:46:09,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:46:09,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2023-11-30 04:46:09,066 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8075880758807588 [2023-11-30 04:46:09,066 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 298 transitions. [2023-11-30 04:46:09,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 298 transitions. [2023-11-30 04:46:09,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:46:09,066 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 298 transitions. [2023-11-30 04:46:09,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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 04:46:09,070 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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 04:46:09,070 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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 04:46:09,072 INFO L307 CegarLoopForPetriNet]: 79 programPoint places, 2 predicate places. [2023-11-30 04:46:09,073 INFO L500 AbstractCegarLoop]: Abstraction has has 81 places, 70 transitions, 208 flow [2023-11-30 04:46:09,073 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 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 04:46:09,073 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:46:09,073 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 04:46:09,073 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 04:46:09,074 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] === [2023-11-30 04:46:09,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:46:09,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1553682740, now seen corresponding path program 1 times [2023-11-30 04:46:09,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:46:09,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069367483] [2023-11-30 04:46:09,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:46:09,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:46:09,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:46:09,218 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 04:46:09,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:46:09,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069367483] [2023-11-30 04:46:09,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069367483] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:46:09,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:46:09,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:46:09,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387121578] [2023-11-30 04:46:09,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:46:09,222 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:46:09,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:46:09,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:46:09,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:46:09,223 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 123 [2023-11-30 04:46:09,223 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 70 transitions, 208 flow. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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 04:46:09,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:46:09,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 123 [2023-11-30 04:46:09,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:46:09,280 INFO L124 PetriNetUnfolderBase]: 31/155 cut-off events. [2023-11-30 04:46:09,280 INFO L125 PetriNetUnfolderBase]: For 93/97 co-relation queries the response was YES. [2023-11-30 04:46:09,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 365 conditions, 155 events. 31/155 cut-off events. For 93/97 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 452 event pairs, 9 based on Foata normal form. 3/157 useless extension candidates. Maximal degree in co-relation 298. Up to 63 conditions per place. [2023-11-30 04:46:09,281 INFO L140 encePairwiseOnDemand]: 121/123 looper letters, 16 selfloop transitions, 1 changer transitions 0/71 dead transitions. [2023-11-30 04:46:09,281 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 71 transitions, 250 flow [2023-11-30 04:46:09,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:46:09,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:46:09,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 300 transitions. [2023-11-30 04:46:09,283 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8130081300813008 [2023-11-30 04:46:09,283 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 300 transitions. [2023-11-30 04:46:09,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 300 transitions. [2023-11-30 04:46:09,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:46:09,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 300 transitions. [2023-11-30 04:46:09,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 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 04:46:09,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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 04:46:09,285 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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 04:46:09,286 INFO L307 CegarLoopForPetriNet]: 79 programPoint places, 3 predicate places. [2023-11-30 04:46:09,286 INFO L500 AbstractCegarLoop]: Abstraction has has 82 places, 71 transitions, 250 flow [2023-11-30 04:46:09,287 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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 04:46:09,287 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:46:09,287 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 04:46:09,287 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 04:46:09,287 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] === [2023-11-30 04:46:09,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:46:09,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1553682741, now seen corresponding path program 1 times [2023-11-30 04:46:09,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:46:09,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242994683] [2023-11-30 04:46:09,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:46:09,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:46:09,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:46:09,371 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 04:46:09,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:46:09,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242994683] [2023-11-30 04:46:09,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242994683] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:46:09,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:46:09,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:46:09,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091403950] [2023-11-30 04:46:09,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:46:09,372 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:46:09,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:46:09,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:46:09,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:46:09,374 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 123 [2023-11-30 04:46:09,374 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 71 transitions, 250 flow. Second operand has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 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 04:46:09,374 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:46:09,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 123 [2023-11-30 04:46:09,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:46:09,429 INFO L124 PetriNetUnfolderBase]: 29/150 cut-off events. [2023-11-30 04:46:09,429 INFO L125 PetriNetUnfolderBase]: For 165/171 co-relation queries the response was YES. [2023-11-30 04:46:09,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 411 conditions, 150 events. 29/150 cut-off events. For 165/171 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 419 event pairs, 9 based on Foata normal form. 3/152 useless extension candidates. Maximal degree in co-relation 336. Up to 58 conditions per place. [2023-11-30 04:46:09,432 INFO L140 encePairwiseOnDemand]: 121/123 looper letters, 16 selfloop transitions, 1 changer transitions 0/70 dead transitions. [2023-11-30 04:46:09,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 70 transitions, 278 flow [2023-11-30 04:46:09,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:46:09,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:46:09,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 291 transitions. [2023-11-30 04:46:09,433 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7886178861788617 [2023-11-30 04:46:09,433 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 291 transitions. [2023-11-30 04:46:09,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 291 transitions. [2023-11-30 04:46:09,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:46:09,434 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 291 transitions. [2023-11-30 04:46:09,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 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 04:46:09,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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 04:46:09,435 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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 04:46:09,436 INFO L307 CegarLoopForPetriNet]: 79 programPoint places, 4 predicate places. [2023-11-30 04:46:09,437 INFO L500 AbstractCegarLoop]: Abstraction has has 83 places, 70 transitions, 278 flow [2023-11-30 04:46:09,437 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 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 04:46:09,437 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:46:09,437 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 04:46:09,438 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 04:46:09,438 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] === [2023-11-30 04:46:09,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:46:09,438 INFO L85 PathProgramCache]: Analyzing trace with hash -15362723, now seen corresponding path program 1 times [2023-11-30 04:46:09,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:46:09,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422706028] [2023-11-30 04:46:09,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:46:09,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:46:09,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:46:09,507 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 04:46:09,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:46:09,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422706028] [2023-11-30 04:46:09,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422706028] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:46:09,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:46:09,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:46:09,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439666055] [2023-11-30 04:46:09,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:46:09,508 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:46:09,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:46:09,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:46:09,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:46:09,510 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 123 [2023-11-30 04:46:09,510 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 70 transitions, 278 flow. Second operand has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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 04:46:09,510 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:46:09,510 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 123 [2023-11-30 04:46:09,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:46:09,556 INFO L124 PetriNetUnfolderBase]: 22/137 cut-off events. [2023-11-30 04:46:09,557 INFO L125 PetriNetUnfolderBase]: For 227/235 co-relation queries the response was YES. [2023-11-30 04:46:09,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 414 conditions, 137 events. 22/137 cut-off events. For 227/235 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 354 event pairs, 0 based on Foata normal form. 6/142 useless extension candidates. Maximal degree in co-relation 331. Up to 51 conditions per place. [2023-11-30 04:46:09,558 INFO L140 encePairwiseOnDemand]: 121/123 looper letters, 19 selfloop transitions, 1 changer transitions 0/72 dead transitions. [2023-11-30 04:46:09,558 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 72 transitions, 342 flow [2023-11-30 04:46:09,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:46:09,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:46:09,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 292 transitions. [2023-11-30 04:46:09,559 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7913279132791328 [2023-11-30 04:46:09,559 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 292 transitions. [2023-11-30 04:46:09,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 292 transitions. [2023-11-30 04:46:09,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:46:09,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 292 transitions. [2023-11-30 04:46:09,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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 04:46:09,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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 04:46:09,561 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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 04:46:09,563 INFO L307 CegarLoopForPetriNet]: 79 programPoint places, 5 predicate places. [2023-11-30 04:46:09,563 INFO L500 AbstractCegarLoop]: Abstraction has has 84 places, 72 transitions, 342 flow [2023-11-30 04:46:09,564 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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 04:46:09,564 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:46:09,564 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 04:46:09,564 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-30 04:46:09,564 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] === [2023-11-30 04:46:09,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:46:09,568 INFO L85 PathProgramCache]: Analyzing trace with hash -15362722, now seen corresponding path program 1 times [2023-11-30 04:46:09,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:46:09,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130806067] [2023-11-30 04:46:09,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:46:09,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:46:09,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:46:09,666 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 04:46:09,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:46:09,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130806067] [2023-11-30 04:46:09,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130806067] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:46:09,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:46:09,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:46:09,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968344290] [2023-11-30 04:46:09,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:46:09,667 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:46:09,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:46:09,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:46:09,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:46:09,668 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 123 [2023-11-30 04:46:09,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 72 transitions, 342 flow. Second operand has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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 04:46:09,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:46:09,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 123 [2023-11-30 04:46:09,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:46:09,704 INFO L124 PetriNetUnfolderBase]: 15/124 cut-off events. [2023-11-30 04:46:09,704 INFO L125 PetriNetUnfolderBase]: For 291/301 co-relation queries the response was YES. [2023-11-30 04:46:09,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 390 conditions, 124 events. 15/124 cut-off events. For 291/301 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 278 event pairs, 0 based on Foata normal form. 6/129 useless extension candidates. Maximal degree in co-relation 300. Up to 38 conditions per place. [2023-11-30 04:46:09,704 INFO L140 encePairwiseOnDemand]: 121/123 looper letters, 0 selfloop transitions, 0 changer transitions 71/71 dead transitions. [2023-11-30 04:46:09,705 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 71 transitions, 370 flow [2023-11-30 04:46:09,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:46:09,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:46:09,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 299 transitions. [2023-11-30 04:46:09,706 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8102981029810298 [2023-11-30 04:46:09,706 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 299 transitions. [2023-11-30 04:46:09,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 299 transitions. [2023-11-30 04:46:09,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:46:09,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 299 transitions. [2023-11-30 04:46:09,707 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 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 04:46:09,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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 04:46:09,708 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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 04:46:09,710 INFO L307 CegarLoopForPetriNet]: 79 programPoint places, 6 predicate places. [2023-11-30 04:46:09,711 INFO L500 AbstractCegarLoop]: Abstraction has has 85 places, 71 transitions, 370 flow [2023-11-30 04:46:09,711 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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 04:46:09,722 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mix045_power.oepc_pso.oepc_rmo.oepc.i_BEv2_AllErrorsAtOnce [2023-11-30 04:46:09,748 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 9 remaining) [2023-11-30 04:46:09,748 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 9 remaining) [2023-11-30 04:46:09,748 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 9 remaining) [2023-11-30 04:46:09,749 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 9 remaining) [2023-11-30 04:46:09,749 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 9 remaining) [2023-11-30 04:46:09,749 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 9 remaining) [2023-11-30 04:46:09,749 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 9 remaining) [2023-11-30 04:46:09,749 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 9 remaining) [2023-11-30 04:46:09,749 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 9 remaining) [2023-11-30 04:46:09,749 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-30 04:46:09,750 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-30 04:46:09,752 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 04:46:09,753 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 04:46:09,759 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 04:46:09 BasicIcfg [2023-11-30 04:46:09,760 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 04:46:09,764 INFO L158 Benchmark]: Toolchain (without parser) took 2363.01ms. Allocated memory is still 448.8MB. Free memory was 405.6MB in the beginning and 189.7MB in the end (delta: 215.9MB). Peak memory consumption was 217.6MB. Max. memory is 16.0GB. [2023-11-30 04:46:09,765 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 373.3MB. Free memory is still 329.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 04:46:09,766 INFO L158 Benchmark]: CACSL2BoogieTranslator took 319.23ms. Allocated memory is still 448.8MB. Free memory was 405.3MB in the beginning and 381.7MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-11-30 04:46:09,766 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.75ms. Allocated memory is still 448.8MB. Free memory was 381.7MB in the beginning and 379.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 04:46:09,766 INFO L158 Benchmark]: Boogie Preprocessor took 35.49ms. Allocated memory is still 448.8MB. Free memory was 379.1MB in the beginning and 377.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 04:46:09,767 INFO L158 Benchmark]: RCFGBuilder took 534.66ms. Allocated memory is still 448.8MB. Free memory was 377.3MB in the beginning and 397.3MB in the end (delta: -20.0MB). Peak memory consumption was 24.6MB. Max. memory is 16.0GB. [2023-11-30 04:46:09,767 INFO L158 Benchmark]: TraceAbstraction took 1414.09ms. Allocated memory is still 448.8MB. Free memory was 396.3MB in the beginning and 189.7MB in the end (delta: 206.6MB). Peak memory consumption was 207.6MB. Max. memory is 16.0GB. [2023-11-30 04:46:09,768 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 373.3MB. Free memory is still 329.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 319.23ms. Allocated memory is still 448.8MB. Free memory was 405.3MB in the beginning and 381.7MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 55.75ms. Allocated memory is still 448.8MB. Free memory was 381.7MB in the beginning and 379.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 35.49ms. Allocated memory is still 448.8MB. Free memory was 379.1MB in the beginning and 377.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 534.66ms. Allocated memory is still 448.8MB. Free memory was 377.3MB in the beginning and 397.3MB in the end (delta: -20.0MB). Peak memory consumption was 24.6MB. Max. memory is 16.0GB. * TraceAbstraction took 1414.09ms. Allocated memory is still 448.8MB. Free memory was 396.3MB in the beginning and 189.7MB in the end (delta: 206.6MB). Peak memory consumption was 207.6MB. 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 150 locations, 9 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: 1.3s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 39 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 110 IncrementalHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 39 mSDtfsCounter, 110 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=370occurred in iteration=6, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 276 NumberOfCodeBlocks, 276 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 270 ConstructedInterpolants, 0 QuantifiedInterpolants, 378 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-30 04:46:09,785 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...