/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/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 04:49:09,906 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 04:49:09,989 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 04:49:10,012 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 04:49:10,014 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 04:49:10,014 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 04:49:10,014 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 04:49:10,015 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 04:49:10,015 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 04:49:10,018 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 04:49:10,018 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 04:49:10,018 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 04:49:10,019 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 04:49:10,019 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 04:49:10,020 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 04:49:10,020 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 04:49:10,020 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 04:49:10,020 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 04:49:10,020 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 04:49:10,020 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 04:49:10,021 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 04:49:10,021 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 04:49:10,021 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 04:49:10,021 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 04:49:10,022 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 04:49:10,022 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 04:49:10,022 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 04:49:10,022 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 04:49:10,022 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 04:49:10,023 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 04:49:10,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 04:49:10,024 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 04:49:10,024 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 04:49:10,024 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer base address is valid at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer to allocated memory at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check array bounds for arrays that are off heap -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check if freed pointer was valid -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2023-11-30 04:49:10,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 04:49:10,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 04:49:10,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 04:49:10,233 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 04:49:10,233 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 04:49:10,234 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-30 04:49:11,423 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 04:49:11,789 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 04:49:11,790 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-30 04:49:11,808 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11179cf11/225d7217596b4a04a6d88313dc24c157/FLAG5b5a17944 [2023-11-30 04:49:11,826 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11179cf11/225d7217596b4a04a6d88313dc24c157 [2023-11-30 04:49:11,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 04:49:11,828 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 04:49:11,839 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 04:49:11,839 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 04:49:11,850 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 04:49:11,850 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 04:49:11" (1/1) ... [2023-11-30 04:49:11,851 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25956d92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:49:11, skipping insertion in model container [2023-11-30 04:49:11,851 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 04:49:11" (1/1) ... [2023-11-30 04:49:11,935 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 04:49:12,318 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 04:49:12,328 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 04:49:12,369 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 04:49:12,394 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 04:49:12,395 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 04:49:12,399 INFO L206 MainTranslator]: Completed translation [2023-11-30 04:49:12,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:49:12 WrapperNode [2023-11-30 04:49:12,400 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 04:49:12,401 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 04:49:12,401 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 04:49:12,401 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 04:49:12,406 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:49:12" (1/1) ... [2023-11-30 04:49:12,424 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:49:12" (1/1) ... [2023-11-30 04:49:12,446 INFO L138 Inliner]: procedures = 177, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 83 [2023-11-30 04:49:12,446 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 04:49:12,447 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 04:49:12,447 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 04:49:12,447 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 04:49:12,453 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:49:12" (1/1) ... [2023-11-30 04:49:12,454 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:49:12" (1/1) ... [2023-11-30 04:49:12,466 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:49:12" (1/1) ... [2023-11-30 04:49:12,466 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:49:12" (1/1) ... [2023-11-30 04:49:12,469 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:49:12" (1/1) ... [2023-11-30 04:49:12,470 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:49:12" (1/1) ... [2023-11-30 04:49:12,471 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:49:12" (1/1) ... [2023-11-30 04:49:12,472 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:49:12" (1/1) ... [2023-11-30 04:49:12,474 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 04:49:12,474 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 04:49:12,474 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 04:49:12,474 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 04:49:12,475 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:49:12" (1/1) ... [2023-11-30 04:49:12,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 04:49:12,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 04:49:12,506 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 04:49:12,514 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 04:49:12,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 04:49:12,527 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-30 04:49:12,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 04:49:12,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 04:49:12,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 04:49:12,528 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-30 04:49:12,528 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-30 04:49:12,529 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-30 04:49:12,529 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-30 04:49:12,529 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-30 04:49:12,529 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-30 04:49:12,529 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-30 04:49:12,529 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-30 04:49:12,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 04:49:12,529 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-30 04:49:12,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 04:49:12,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 04:49:12,530 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 04:49:12,625 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 04:49:12,626 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 04:49:12,851 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 04:49:12,857 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 04:49:12,858 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-30 04:49:12,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 04:49:12 BoogieIcfgContainer [2023-11-30 04:49:12,859 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 04:49:12,860 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 04:49:12,860 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 04:49:12,862 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 04:49:12,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 04:49:11" (1/3) ... [2023-11-30 04:49:12,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38cc130c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 04:49:12, skipping insertion in model container [2023-11-30 04:49:12,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:49:12" (2/3) ... [2023-11-30 04:49:12,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38cc130c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 04:49:12, skipping insertion in model container [2023-11-30 04:49:12,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 04:49:12" (3/3) ... [2023-11-30 04:49:12,868 INFO L112 eAbstractionObserver]: Analyzing ICFG safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-30 04:49:12,880 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 04:49:12,880 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-30 04:49:12,880 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 04:49:12,937 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-30 04:49:12,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 118 transitions, 252 flow [2023-11-30 04:49:13,028 INFO L124 PetriNetUnfolderBase]: 3/114 cut-off events. [2023-11-30 04:49:13,029 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 04:49:13,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 114 events. 3/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 102 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 98. Up to 2 conditions per place. [2023-11-30 04:49:13,033 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 118 transitions, 252 flow [2023-11-30 04:49:13,035 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 67 transitions, 143 flow [2023-11-30 04:49:13,041 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 04:49:13,045 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;@466ac9d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 04:49:13,046 INFO L363 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-11-30 04:49:13,052 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 04:49:13,052 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2023-11-30 04:49:13,052 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 04:49:13,052 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:49:13,053 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 04:49:13,053 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-30 04:49:13,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:49:13,060 INFO L85 PathProgramCache]: Analyzing trace with hash 35633351, now seen corresponding path program 1 times [2023-11-30 04:49:13,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:49:13,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547814406] [2023-11-30 04:49:13,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:49:13,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:49:13,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:49:13,289 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 04:49:13,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:49:13,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547814406] [2023-11-30 04:49:13,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547814406] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:49:13,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:49:13,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:49:13,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543519203] [2023-11-30 04:49:13,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:49:13,297 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:49:13,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:49:13,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:49:13,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:49:13,329 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 118 [2023-11-30 04:49:13,334 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 67 transitions, 143 flow. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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 04:49:13,334 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:49:13,334 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 118 [2023-11-30 04:49:13,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:49:13,381 INFO L124 PetriNetUnfolderBase]: 0/66 cut-off events. [2023-11-30 04:49:13,381 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 04:49:13,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 66 events. 0/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 57 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 0. Up to 14 conditions per place. [2023-11-30 04:49:13,383 INFO L140 encePairwiseOnDemand]: 116/118 looper letters, 17 selfloop transitions, 1 changer transitions 0/66 dead transitions. [2023-11-30 04:49:13,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 66 transitions, 177 flow [2023-11-30 04:49:13,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:49:13,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:49:13,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2023-11-30 04:49:13,397 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7909604519774012 [2023-11-30 04:49:13,398 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 280 transitions. [2023-11-30 04:49:13,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 280 transitions. [2023-11-30 04:49:13,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:49:13,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 280 transitions. [2023-11-30 04:49:13,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 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 04:49:13,411 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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 04:49:13,411 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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 04:49:13,414 INFO L307 CegarLoopForPetriNet]: 77 programPoint places, 1 predicate places. [2023-11-30 04:49:13,415 INFO L500 AbstractCegarLoop]: Abstraction has has 78 places, 66 transitions, 177 flow [2023-11-30 04:49:13,415 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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 04:49:13,415 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:49:13,416 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 04:49:13,416 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 04:49:13,416 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-30 04:49:13,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:49:13,417 INFO L85 PathProgramCache]: Analyzing trace with hash 35633352, now seen corresponding path program 1 times [2023-11-30 04:49:13,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:49:13,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504123801] [2023-11-30 04:49:13,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:49:13,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:49:13,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:49:13,517 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 04:49:13,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:49:13,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504123801] [2023-11-30 04:49:13,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504123801] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:49:13,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:49:13,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:49:13,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163127096] [2023-11-30 04:49:13,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:49:13,519 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:49:13,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:49:13,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:49:13,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:49:13,520 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 118 [2023-11-30 04:49:13,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 66 transitions, 177 flow. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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 04:49:13,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:49:13,520 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 118 [2023-11-30 04:49:13,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:49:13,563 INFO L124 PetriNetUnfolderBase]: 0/65 cut-off events. [2023-11-30 04:49:13,564 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2023-11-30 04:49:13,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 65 events. 0/65 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 0. Up to 13 conditions per place. [2023-11-30 04:49:13,565 INFO L140 encePairwiseOnDemand]: 116/118 looper letters, 15 selfloop transitions, 1 changer transitions 0/65 dead transitions. [2023-11-30 04:49:13,565 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 65 transitions, 205 flow [2023-11-30 04:49:13,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:49:13,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:49:13,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 290 transitions. [2023-11-30 04:49:13,567 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8192090395480226 [2023-11-30 04:49:13,567 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 290 transitions. [2023-11-30 04:49:13,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 290 transitions. [2023-11-30 04:49:13,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:49:13,567 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 290 transitions. [2023-11-30 04:49:13,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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 04:49:13,569 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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 04:49:13,569 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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 04:49:13,570 INFO L307 CegarLoopForPetriNet]: 77 programPoint places, 2 predicate places. [2023-11-30 04:49:13,570 INFO L500 AbstractCegarLoop]: Abstraction has has 79 places, 65 transitions, 205 flow [2023-11-30 04:49:13,570 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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 04:49:13,570 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:49:13,571 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] [2023-11-30 04:49:13,571 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 04:49:13,571 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-30 04:49:13,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:49:13,573 INFO L85 PathProgramCache]: Analyzing trace with hash -589441096, now seen corresponding path program 1 times [2023-11-30 04:49:13,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:49:13,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547618188] [2023-11-30 04:49:13,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:49:13,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:49:13,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:49:13,686 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 04:49:13,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:49:13,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547618188] [2023-11-30 04:49:13,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547618188] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:49:13,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:49:13,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:49:13,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182927076] [2023-11-30 04:49:13,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:49:13,687 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:49:13,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:49:13,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:49:13,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:49:13,689 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 118 [2023-11-30 04:49:13,689 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 65 transitions, 205 flow. Second operand has 3 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) [2023-11-30 04:49:13,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:49:13,689 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 118 [2023-11-30 04:49:13,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:49:13,723 INFO L124 PetriNetUnfolderBase]: 0/64 cut-off events. [2023-11-30 04:49:13,723 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2023-11-30 04:49:13,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 64 events. 0/64 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 51 event pairs, 0 based on Foata normal form. 1/65 useless extension candidates. Maximal degree in co-relation 0. Up to 13 conditions per place. [2023-11-30 04:49:13,724 INFO L140 encePairwiseOnDemand]: 116/118 looper letters, 15 selfloop transitions, 1 changer transitions 0/64 dead transitions. [2023-11-30 04:49:13,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 64 transitions, 233 flow [2023-11-30 04:49:13,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:49:13,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:49:13,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 290 transitions. [2023-11-30 04:49:13,726 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8192090395480226 [2023-11-30 04:49:13,726 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 290 transitions. [2023-11-30 04:49:13,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 290 transitions. [2023-11-30 04:49:13,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:49:13,727 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 290 transitions. [2023-11-30 04:49:13,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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 04:49:13,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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 04:49:13,730 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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 04:49:13,730 INFO L307 CegarLoopForPetriNet]: 77 programPoint places, 3 predicate places. [2023-11-30 04:49:13,731 INFO L500 AbstractCegarLoop]: Abstraction has has 80 places, 64 transitions, 233 flow [2023-11-30 04:49:13,731 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2023-11-30 04:49:13,731 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:49:13,731 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] [2023-11-30 04:49:13,731 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 04:49:13,731 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-30 04:49:13,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:49:13,732 INFO L85 PathProgramCache]: Analyzing trace with hash -589441097, now seen corresponding path program 1 times [2023-11-30 04:49:13,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:49:13,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596746955] [2023-11-30 04:49:13,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:49:13,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:49:13,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:49:13,795 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 04:49:13,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:49:13,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596746955] [2023-11-30 04:49:13,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596746955] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:49:13,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:49:13,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:49:13,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735672060] [2023-11-30 04:49:13,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:49:13,796 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:49:13,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:49:13,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:49:13,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:49:13,802 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 118 [2023-11-30 04:49:13,802 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 64 transitions, 233 flow. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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 04:49:13,802 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:49:13,802 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 118 [2023-11-30 04:49:13,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:49:13,838 INFO L124 PetriNetUnfolderBase]: 0/63 cut-off events. [2023-11-30 04:49:13,838 INFO L125 PetriNetUnfolderBase]: For 61/61 co-relation queries the response was YES. [2023-11-30 04:49:13,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 63 events. 0/63 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 47 event pairs, 0 based on Foata normal form. 1/64 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2023-11-30 04:49:13,838 INFO L140 encePairwiseOnDemand]: 116/118 looper letters, 15 selfloop transitions, 1 changer transitions 0/63 dead transitions. [2023-11-30 04:49:13,839 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 63 transitions, 259 flow [2023-11-30 04:49:13,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:49:13,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:49:13,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 278 transitions. [2023-11-30 04:49:13,840 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7853107344632768 [2023-11-30 04:49:13,840 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 278 transitions. [2023-11-30 04:49:13,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 278 transitions. [2023-11-30 04:49:13,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:49:13,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 278 transitions. [2023-11-30 04:49:13,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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 04:49:13,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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 04:49:13,843 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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 04:49:13,848 INFO L307 CegarLoopForPetriNet]: 77 programPoint places, 4 predicate places. [2023-11-30 04:49:13,848 INFO L500 AbstractCegarLoop]: Abstraction has has 81 places, 63 transitions, 259 flow [2023-11-30 04:49:13,849 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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 04:49:13,849 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:49:13,849 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 04:49:13,849 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 04:49:13,849 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-30 04:49:13,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:49:13,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1010037708, now seen corresponding path program 1 times [2023-11-30 04:49:13,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:49:13,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252488607] [2023-11-30 04:49:13,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:49:13,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:49:13,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:49:13,949 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 04:49:13,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:49:13,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252488607] [2023-11-30 04:49:13,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252488607] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:49:13,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:49:13,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:49:13,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048028494] [2023-11-30 04:49:13,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:49:13,950 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:49:13,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:49:13,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:49:13,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:49:13,951 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 118 [2023-11-30 04:49:13,952 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 63 transitions, 259 flow. Second operand has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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 04:49:13,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:49:13,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 118 [2023-11-30 04:49:13,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:49:14,015 INFO L124 PetriNetUnfolderBase]: 0/62 cut-off events. [2023-11-30 04:49:14,015 INFO L125 PetriNetUnfolderBase]: For 100/100 co-relation queries the response was YES. [2023-11-30 04:49:14,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 62 events. 0/62 cut-off events. For 100/100 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 1/63 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2023-11-30 04:49:14,015 INFO L140 encePairwiseOnDemand]: 116/118 looper letters, 15 selfloop transitions, 1 changer transitions 0/62 dead transitions. [2023-11-30 04:49:14,015 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 62 transitions, 285 flow [2023-11-30 04:49:14,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:49:14,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:49:14,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 278 transitions. [2023-11-30 04:49:14,019 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7853107344632768 [2023-11-30 04:49:14,019 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 278 transitions. [2023-11-30 04:49:14,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 278 transitions. [2023-11-30 04:49:14,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:49:14,019 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 278 transitions. [2023-11-30 04:49:14,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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 04:49:14,021 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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 04:49:14,021 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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 04:49:14,023 INFO L307 CegarLoopForPetriNet]: 77 programPoint places, 5 predicate places. [2023-11-30 04:49:14,023 INFO L500 AbstractCegarLoop]: Abstraction has has 82 places, 62 transitions, 285 flow [2023-11-30 04:49:14,023 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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 04:49:14,023 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:49:14,023 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 04:49:14,024 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-30 04:49:14,024 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-30 04:49:14,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:49:14,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1010037707, now seen corresponding path program 1 times [2023-11-30 04:49:14,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:49:14,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700269392] [2023-11-30 04:49:14,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:49:14,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:49:14,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:49:14,092 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 04:49:14,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:49:14,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700269392] [2023-11-30 04:49:14,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700269392] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:49:14,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:49:14,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:49:14,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92913037] [2023-11-30 04:49:14,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:49:14,096 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:49:14,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:49:14,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:49:14,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:49:14,098 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 118 [2023-11-30 04:49:14,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 62 transitions, 285 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) [2023-11-30 04:49:14,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:49:14,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 118 [2023-11-30 04:49:14,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:49:14,124 INFO L124 PetriNetUnfolderBase]: 0/61 cut-off events. [2023-11-30 04:49:14,124 INFO L125 PetriNetUnfolderBase]: For 147/147 co-relation queries the response was YES. [2023-11-30 04:49:14,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 61 events. 0/61 cut-off events. For 147/147 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 39 event pairs, 0 based on Foata normal form. 1/62 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2023-11-30 04:49:14,125 INFO L140 encePairwiseOnDemand]: 116/118 looper letters, 13 selfloop transitions, 1 changer transitions 0/61 dead transitions. [2023-11-30 04:49:14,125 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 61 transitions, 305 flow [2023-11-30 04:49:14,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:49:14,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:49:14,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 288 transitions. [2023-11-30 04:49:14,126 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8135593220338984 [2023-11-30 04:49:14,126 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 288 transitions. [2023-11-30 04:49:14,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 288 transitions. [2023-11-30 04:49:14,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:49:14,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 288 transitions. [2023-11-30 04:49:14,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 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 04:49:14,128 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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 04:49:14,128 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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 04:49:14,131 INFO L307 CegarLoopForPetriNet]: 77 programPoint places, 6 predicate places. [2023-11-30 04:49:14,131 INFO L500 AbstractCegarLoop]: Abstraction has has 83 places, 61 transitions, 305 flow [2023-11-30 04:49:14,131 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) [2023-11-30 04:49:14,131 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:49:14,131 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] [2023-11-30 04:49:14,131 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-30 04:49:14,131 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-30 04:49:14,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:49:14,132 INFO L85 PathProgramCache]: Analyzing trace with hash -608787173, now seen corresponding path program 1 times [2023-11-30 04:49:14,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:49:14,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031787824] [2023-11-30 04:49:14,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:49:14,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:49:14,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:49:14,222 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 04:49:14,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:49:14,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031787824] [2023-11-30 04:49:14,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031787824] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:49:14,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:49:14,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:49:14,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011208804] [2023-11-30 04:49:14,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:49:14,226 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:49:14,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:49:14,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:49:14,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:49:14,227 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 118 [2023-11-30 04:49:14,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 61 transitions, 305 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 04:49:14,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:49:14,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 118 [2023-11-30 04:49:14,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:49:14,249 INFO L124 PetriNetUnfolderBase]: 0/60 cut-off events. [2023-11-30 04:49:14,249 INFO L125 PetriNetUnfolderBase]: For 201/201 co-relation queries the response was YES. [2023-11-30 04:49:14,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 60 events. 0/60 cut-off events. For 201/201 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 36 event pairs, 0 based on Foata normal form. 1/61 useless extension candidates. Maximal degree in co-relation 0. Up to 13 conditions per place. [2023-11-30 04:49:14,249 INFO L140 encePairwiseOnDemand]: 116/118 looper letters, 13 selfloop transitions, 1 changer transitions 0/60 dead transitions. [2023-11-30 04:49:14,249 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 60 transitions, 325 flow [2023-11-30 04:49:14,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:49:14,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:49:14,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 288 transitions. [2023-11-30 04:49:14,251 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8135593220338984 [2023-11-30 04:49:14,251 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 288 transitions. [2023-11-30 04:49:14,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 288 transitions. [2023-11-30 04:49:14,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:49:14,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 288 transitions. [2023-11-30 04:49:14,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 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 04:49:14,253 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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 04:49:14,253 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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 04:49:14,254 INFO L307 CegarLoopForPetriNet]: 77 programPoint places, 7 predicate places. [2023-11-30 04:49:14,254 INFO L500 AbstractCegarLoop]: Abstraction has has 84 places, 60 transitions, 325 flow [2023-11-30 04:49:14,254 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 04:49:14,254 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:49:14,254 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] [2023-11-30 04:49:14,254 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-30 04:49:14,255 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-30 04:49:14,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:49:14,255 INFO L85 PathProgramCache]: Analyzing trace with hash -608787174, now seen corresponding path program 1 times [2023-11-30 04:49:14,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:49:14,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884828642] [2023-11-30 04:49:14,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:49:14,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:49:14,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:49:14,311 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 04:49:14,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:49:14,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884828642] [2023-11-30 04:49:14,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884828642] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:49:14,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:49:14,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:49:14,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496316148] [2023-11-30 04:49:14,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:49:14,313 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:49:14,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:49:14,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:49:14,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:49:14,314 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 118 [2023-11-30 04:49:14,314 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 60 transitions, 325 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) [2023-11-30 04:49:14,314 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:49:14,314 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 118 [2023-11-30 04:49:14,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:49:14,331 INFO L124 PetriNetUnfolderBase]: 0/59 cut-off events. [2023-11-30 04:49:14,332 INFO L125 PetriNetUnfolderBase]: For 262/262 co-relation queries the response was YES. [2023-11-30 04:49:14,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 59 events. 0/59 cut-off events. For 262/262 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 34 event pairs, 0 based on Foata normal form. 1/60 useless extension candidates. Maximal degree in co-relation 0. Up to 14 conditions per place. [2023-11-30 04:49:14,333 INFO L140 encePairwiseOnDemand]: 116/118 looper letters, 0 selfloop transitions, 0 changer transitions 59/59 dead transitions. [2023-11-30 04:49:14,333 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 59 transitions, 343 flow [2023-11-30 04:49:14,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:49:14,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:49:14,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 276 transitions. [2023-11-30 04:49:14,335 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7796610169491526 [2023-11-30 04:49:14,336 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 276 transitions. [2023-11-30 04:49:14,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 276 transitions. [2023-11-30 04:49:14,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:49:14,336 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 276 transitions. [2023-11-30 04:49:14,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2023-11-30 04:49:14,337 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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 04:49:14,338 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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 04:49:14,339 INFO L307 CegarLoopForPetriNet]: 77 programPoint places, 8 predicate places. [2023-11-30 04:49:14,340 INFO L500 AbstractCegarLoop]: Abstraction has has 85 places, 59 transitions, 343 flow [2023-11-30 04:49:14,340 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) [2023-11-30 04:49:14,346 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i_BEv2_AllErrorsAtOnce [2023-11-30 04:49:14,372 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 12 remaining) [2023-11-30 04:49:14,373 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 12 remaining) [2023-11-30 04:49:14,376 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 12 remaining) [2023-11-30 04:49:14,377 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 12 remaining) [2023-11-30 04:49:14,377 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 12 remaining) [2023-11-30 04:49:14,378 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 12 remaining) [2023-11-30 04:49:14,378 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 12 remaining) [2023-11-30 04:49:14,378 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 12 remaining) [2023-11-30 04:49:14,378 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 12 remaining) [2023-11-30 04:49:14,378 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 12 remaining) [2023-11-30 04:49:14,378 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 12 remaining) [2023-11-30 04:49:14,378 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2023-11-30 04:49:14,378 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-30 04:49:14,379 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 04:49:14,381 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 04:49:14,381 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 04:49:14,386 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 04:49:14 BasicIcfg [2023-11-30 04:49:14,386 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 04:49:14,386 INFO L158 Benchmark]: Toolchain (without parser) took 2558.09ms. Allocated memory is still 828.4MB. Free memory was 787.5MB in the beginning and 704.2MB in the end (delta: 83.2MB). Peak memory consumption was 84.0MB. Max. memory is 16.0GB. [2023-11-30 04:49:14,386 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 411.0MB. Free memory is still 363.2MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 04:49:14,387 INFO L158 Benchmark]: CACSL2BoogieTranslator took 561.13ms. Allocated memory is still 828.4MB. Free memory was 787.5MB in the beginning and 767.5MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-11-30 04:49:14,387 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.47ms. Allocated memory is still 828.4MB. Free memory was 766.7MB in the beginning and 764.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 04:49:14,387 INFO L158 Benchmark]: Boogie Preprocessor took 26.78ms. Allocated memory is still 828.4MB. Free memory was 764.6MB in the beginning and 763.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 04:49:14,387 INFO L158 Benchmark]: RCFGBuilder took 384.68ms. Allocated memory is still 828.4MB. Free memory was 763.3MB in the beginning and 746.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-11-30 04:49:14,387 INFO L158 Benchmark]: TraceAbstraction took 1525.76ms. Allocated memory is still 828.4MB. Free memory was 745.7MB in the beginning and 704.2MB in the end (delta: 41.4MB). Peak memory consumption was 42.0MB. Max. memory is 16.0GB. [2023-11-30 04:49:14,388 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 411.0MB. Free memory is still 363.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 561.13ms. Allocated memory is still 828.4MB. Free memory was 787.5MB in the beginning and 767.5MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 45.47ms. Allocated memory is still 828.4MB. Free memory was 766.7MB in the beginning and 764.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 26.78ms. Allocated memory is still 828.4MB. Free memory was 764.6MB in the beginning and 763.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 384.68ms. Allocated memory is still 828.4MB. Free memory was 763.3MB in the beginning and 746.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 1525.76ms. Allocated memory is still 828.4MB. Free memory was 745.7MB in the beginning and 704.2MB in the end (delta: 41.4MB). Peak memory consumption was 42.0MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 150 locations, 12 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.4s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 128 IncrementalHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 60 mSDtfsCounter, 128 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=343occurred in iteration=8, InterpolantAutomatonStates: 24, 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, 0.6s InterpolantComputationTime, 236 NumberOfCodeBlocks, 236 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 228 ConstructedInterpolants, 0 QuantifiedInterpolants, 372 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-30 04:49:14,405 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...