/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.pointer.base.address.is.valid.at.dereference ASSERTandASSUME --cacsl2boogietranslator.pointer.to.allocated.memory.at.dereference ASSERTandASSUME --cacsl2boogietranslator.check.array.bounds.for.arrays.that.are.off.heap ASSERTandASSUME --cacsl2boogietranslator.check.if.freed.pointer.was.valid true --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true -i ../../../trunk/examples/svcomp/pthread-wmm/mix051_pso.opt_rmo.opt_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-6bf5761-m [2023-12-05 21:08:02,870 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-05 21:08:02,953 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-12-05 21:08:02,982 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-05 21:08:02,982 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-05 21:08:02,983 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-05 21:08:02,983 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-05 21:08:02,984 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-05 21:08:02,984 INFO L153 SettingsManager]: * Use SBE=true [2023-12-05 21:08:02,985 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-05 21:08:02,985 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-05 21:08:02,985 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-05 21:08:02,986 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-05 21:08:02,987 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-05 21:08:02,987 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-05 21:08:02,987 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-05 21:08:02,987 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-05 21:08:02,988 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-05 21:08:02,988 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-05 21:08:02,988 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-05 21:08:02,988 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-05 21:08:02,989 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-05 21:08:02,989 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-05 21:08:02,989 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-05 21:08:02,989 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-05 21:08:02,991 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-05 21:08:02,991 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-05 21:08:02,991 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-05 21:08:02,991 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-05 21:08:02,991 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-05 21:08:02,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-05 21:08:02,992 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-05 21:08:02,993 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-05 21:08:02,993 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer base address is valid at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer to allocated memory at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check array bounds for arrays that are off heap -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check if freed pointer was valid -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2023-12-05 21:08:03,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-05 21:08:03,260 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-05 21:08:03,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-05 21:08:03,264 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-05 21:08:03,264 INFO L274 PluginConnector]: CDTParser initialized [2023-12-05 21:08:03,265 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix051_pso.opt_rmo.opt_tso.opt.i [2023-12-05 21:08:04,452 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-05 21:08:04,717 INFO L384 CDTParser]: Found 1 translation units. [2023-12-05 21:08:04,717 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix051_pso.opt_rmo.opt_tso.opt.i [2023-12-05 21:08:04,734 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fada9e26/3c262c78b5604da2b8bb97bc431753c8/FLAG7615c3738 [2023-12-05 21:08:04,747 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fada9e26/3c262c78b5604da2b8bb97bc431753c8 [2023-12-05 21:08:04,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-05 21:08:04,750 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-05 21:08:04,751 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-05 21:08:04,751 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-05 21:08:04,755 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-05 21:08:04,755 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:08:04" (1/1) ... [2023-12-05 21:08:04,756 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1464c47f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:04, skipping insertion in model container [2023-12-05 21:08:04,756 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:08:04" (1/1) ... [2023-12-05 21:08:04,809 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-05 21:08:05,179 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-05 21:08:05,192 INFO L202 MainTranslator]: Completed pre-run [2023-12-05 21:08:05,251 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-05 21:08:05,286 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-05 21:08:05,286 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-05 21:08:05,293 INFO L206 MainTranslator]: Completed translation [2023-12-05 21:08:05,293 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:05 WrapperNode [2023-12-05 21:08:05,293 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-05 21:08:05,295 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-05 21:08:05,295 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-05 21:08:05,295 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-05 21:08:05,302 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:05" (1/1) ... [2023-12-05 21:08:05,328 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:05" (1/1) ... [2023-12-05 21:08:05,372 INFO L138 Inliner]: procedures = 177, calls = 68, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 149 [2023-12-05 21:08:05,372 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-05 21:08:05,373 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-05 21:08:05,373 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-05 21:08:05,373 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-05 21:08:05,381 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:05" (1/1) ... [2023-12-05 21:08:05,381 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:05" (1/1) ... [2023-12-05 21:08:05,384 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:05" (1/1) ... [2023-12-05 21:08:05,385 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:05" (1/1) ... [2023-12-05 21:08:05,400 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:05" (1/1) ... [2023-12-05 21:08:05,402 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:05" (1/1) ... [2023-12-05 21:08:05,404 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:05" (1/1) ... [2023-12-05 21:08:05,405 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:05" (1/1) ... [2023-12-05 21:08:05,408 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-05 21:08:05,409 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-05 21:08:05,409 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-05 21:08:05,409 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-05 21:08:05,410 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:05" (1/1) ... [2023-12-05 21:08:05,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-05 21:08:05,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-05 21:08:05,449 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-05 21:08:05,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-05 21:08:05,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-05 21:08:05,489 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-05 21:08:05,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-05 21:08:05,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-05 21:08:05,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-05 21:08:05,489 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-12-05 21:08:05,490 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-12-05 21:08:05,490 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-12-05 21:08:05,490 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-12-05 21:08:05,490 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-12-05 21:08:05,491 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-12-05 21:08:05,491 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-12-05 21:08:05,491 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-12-05 21:08:05,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-05 21:08:05,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-05 21:08:05,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-05 21:08:05,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-05 21:08:05,493 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-05 21:08:05,652 INFO L241 CfgBuilder]: Building ICFG [2023-12-05 21:08:05,654 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-05 21:08:05,941 INFO L282 CfgBuilder]: Performing block encoding [2023-12-05 21:08:06,079 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-05 21:08:06,080 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-05 21:08:06,081 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:08:06 BoogieIcfgContainer [2023-12-05 21:08:06,081 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-05 21:08:06,083 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-05 21:08:06,083 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-05 21:08:06,086 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-05 21:08:06,086 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 09:08:04" (1/3) ... [2023-12-05 21:08:06,087 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d8c3963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:08:06, skipping insertion in model container [2023-12-05 21:08:06,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:05" (2/3) ... [2023-12-05 21:08:06,087 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d8c3963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:08:06, skipping insertion in model container [2023-12-05 21:08:06,088 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:08:06" (3/3) ... [2023-12-05 21:08:06,089 INFO L112 eAbstractionObserver]: Analyzing ICFG mix051_pso.opt_rmo.opt_tso.opt.i [2023-12-05 21:08:06,102 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-05 21:08:06,103 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-12-05 21:08:06,103 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-05 21:08:06,166 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-05 21:08:06,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 153 places, 143 transitions, 302 flow [2023-12-05 21:08:06,277 INFO L124 PetriNetUnfolderBase]: 3/139 cut-off events. [2023-12-05 21:08:06,277 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-05 21:08:06,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 139 events. 3/139 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 108 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 100. Up to 2 conditions per place. [2023-12-05 21:08:06,287 INFO L82 GeneralOperation]: Start removeDead. Operand has 153 places, 143 transitions, 302 flow [2023-12-05 21:08:06,294 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 91 transitions, 191 flow [2023-12-05 21:08:06,309 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-05 21:08:06,318 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;@613745da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-05 21:08:06,318 INFO L363 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-12-05 21:08:06,335 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-05 21:08:06,335 INFO L124 PetriNetUnfolderBase]: 0/42 cut-off events. [2023-12-05 21:08:06,335 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-05 21:08:06,335 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:08:06,336 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:08:06,336 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)] === [2023-12-05 21:08:06,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:08:06,343 INFO L85 PathProgramCache]: Analyzing trace with hash -766611810, now seen corresponding path program 1 times [2023-12-05 21:08:06,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:08:06,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209328221] [2023-12-05 21:08:06,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:08:06,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:08:06,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:08:06,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:08:06,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:08:06,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209328221] [2023-12-05 21:08:06,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209328221] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:08:06,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:08:06,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:08:06,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645656094] [2023-12-05 21:08:06,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:08:06,735 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:08:06,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:08:06,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:08:06,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:08:06,762 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 143 [2023-12-05 21:08:06,765 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 91 transitions, 191 flow. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:06,766 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:08:06,766 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 143 [2023-12-05 21:08:06,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:08:06,855 INFO L124 PetriNetUnfolderBase]: 2/97 cut-off events. [2023-12-05 21:08:06,856 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-05 21:08:06,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 97 events. 2/97 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 81 event pairs, 2 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 72. Up to 19 conditions per place. [2023-12-05 21:08:06,858 INFO L140 encePairwiseOnDemand]: 141/143 looper letters, 18 selfloop transitions, 1 changer transitions 0/90 dead transitions. [2023-12-05 21:08:06,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 90 transitions, 227 flow [2023-12-05 21:08:06,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:08:06,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:08:06,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 344 transitions. [2023-12-05 21:08:06,874 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8018648018648019 [2023-12-05 21:08:06,876 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 344 transitions. [2023-12-05 21:08:06,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 344 transitions. [2023-12-05 21:08:06,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:08:06,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 344 transitions. [2023-12-05 21:08:06,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:06,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:06,891 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:06,895 INFO L308 CegarLoopForPetriNet]: 101 programPoint places, 1 predicate places. [2023-12-05 21:08:06,895 INFO L500 AbstractCegarLoop]: Abstraction has has 102 places, 90 transitions, 227 flow [2023-12-05 21:08:06,896 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:06,896 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:08:06,896 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:08:06,896 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-05 21:08:06,897 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)] === [2023-12-05 21:08:06,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:08:06,897 INFO L85 PathProgramCache]: Analyzing trace with hash -766611809, now seen corresponding path program 1 times [2023-12-05 21:08:06,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:08:06,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956746355] [2023-12-05 21:08:06,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:08:06,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:08:06,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:08:07,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:08:07,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:08:07,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956746355] [2023-12-05 21:08:07,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956746355] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:08:07,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:08:07,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:08:07,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163276284] [2023-12-05 21:08:07,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:08:07,047 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:08:07,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:08:07,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:08:07,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:08:07,050 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 143 [2023-12-05 21:08:07,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 90 transitions, 227 flow. Second operand has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:07,051 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:08:07,051 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 143 [2023-12-05 21:08:07,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:08:07,120 INFO L124 PetriNetUnfolderBase]: 3/97 cut-off events. [2023-12-05 21:08:07,120 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-12-05 21:08:07,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 97 events. 3/97 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 85 event pairs, 3 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 90. Up to 19 conditions per place. [2023-12-05 21:08:07,121 INFO L140 encePairwiseOnDemand]: 141/143 looper letters, 16 selfloop transitions, 1 changer transitions 0/89 dead transitions. [2023-12-05 21:08:07,121 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 89 transitions, 257 flow [2023-12-05 21:08:07,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:08:07,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:08:07,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 354 transitions. [2023-12-05 21:08:07,130 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8251748251748252 [2023-12-05 21:08:07,130 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 354 transitions. [2023-12-05 21:08:07,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 354 transitions. [2023-12-05 21:08:07,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:08:07,131 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 354 transitions. [2023-12-05 21:08:07,132 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:07,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:07,134 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:07,135 INFO L308 CegarLoopForPetriNet]: 101 programPoint places, 2 predicate places. [2023-12-05 21:08:07,135 INFO L500 AbstractCegarLoop]: Abstraction has has 103 places, 89 transitions, 257 flow [2023-12-05 21:08:07,135 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:07,135 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:08:07,136 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:08:07,136 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-05 21:08:07,136 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-12-05 21:08:07,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:08:07,137 INFO L85 PathProgramCache]: Analyzing trace with hash -92538750, now seen corresponding path program 1 times [2023-12-05 21:08:07,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:08:07,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672213956] [2023-12-05 21:08:07,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:08:07,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:08:07,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:08:07,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:08:07,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:08:07,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672213956] [2023-12-05 21:08:07,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672213956] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:08:07,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:08:07,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:08:07,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840662714] [2023-12-05 21:08:07,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:08:07,286 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:08:07,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:08:07,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:08:07,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:08:07,289 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 143 [2023-12-05 21:08:07,290 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 89 transitions, 257 flow. Second operand has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:07,294 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:08:07,294 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 143 [2023-12-05 21:08:07,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:08:07,354 INFO L124 PetriNetUnfolderBase]: 3/96 cut-off events. [2023-12-05 21:08:07,354 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2023-12-05 21:08:07,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 96 events. 3/96 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 81 event pairs, 3 based on Foata normal form. 1/97 useless extension candidates. Maximal degree in co-relation 104. Up to 19 conditions per place. [2023-12-05 21:08:07,356 INFO L140 encePairwiseOnDemand]: 141/143 looper letters, 17 selfloop transitions, 1 changer transitions 0/88 dead transitions. [2023-12-05 21:08:07,357 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 88 transitions, 289 flow [2023-12-05 21:08:07,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:08:07,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:08:07,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 343 transitions. [2023-12-05 21:08:07,359 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7995337995337995 [2023-12-05 21:08:07,359 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 343 transitions. [2023-12-05 21:08:07,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 343 transitions. [2023-12-05 21:08:07,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:08:07,360 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 343 transitions. [2023-12-05 21:08:07,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:07,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:07,364 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:07,365 INFO L308 CegarLoopForPetriNet]: 101 programPoint places, 3 predicate places. [2023-12-05 21:08:07,366 INFO L500 AbstractCegarLoop]: Abstraction has has 104 places, 88 transitions, 289 flow [2023-12-05 21:08:07,366 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:07,366 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:08:07,366 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:08:07,366 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-05 21:08:07,367 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-12-05 21:08:07,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:08:07,367 INFO L85 PathProgramCache]: Analyzing trace with hash -92538749, now seen corresponding path program 1 times [2023-12-05 21:08:07,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:08:07,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353130835] [2023-12-05 21:08:07,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:08:07,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:08:07,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:08:07,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:08:07,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:08:07,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353130835] [2023-12-05 21:08:07,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353130835] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:08:07,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:08:07,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:08:07,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148979612] [2023-12-05 21:08:07,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:08:07,510 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:08:07,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:08:07,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:08:07,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:08:07,512 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 143 [2023-12-05 21:08:07,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 88 transitions, 289 flow. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:07,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:08:07,513 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 143 [2023-12-05 21:08:07,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:08:07,561 INFO L124 PetriNetUnfolderBase]: 3/95 cut-off events. [2023-12-05 21:08:07,562 INFO L125 PetriNetUnfolderBase]: For 75/75 co-relation queries the response was YES. [2023-12-05 21:08:07,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 95 events. 3/95 cut-off events. For 75/75 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 78 event pairs, 3 based on Foata normal form. 1/96 useless extension candidates. Maximal degree in co-relation 116. Up to 18 conditions per place. [2023-12-05 21:08:07,563 INFO L140 encePairwiseOnDemand]: 141/143 looper letters, 15 selfloop transitions, 1 changer transitions 0/87 dead transitions. [2023-12-05 21:08:07,563 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 87 transitions, 315 flow [2023-12-05 21:08:07,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:08:07,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:08:07,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 353 transitions. [2023-12-05 21:08:07,565 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8228438228438228 [2023-12-05 21:08:07,565 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 353 transitions. [2023-12-05 21:08:07,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 353 transitions. [2023-12-05 21:08:07,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:08:07,566 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 353 transitions. [2023-12-05 21:08:07,567 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:07,568 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:07,568 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:07,572 INFO L308 CegarLoopForPetriNet]: 101 programPoint places, 4 predicate places. [2023-12-05 21:08:07,572 INFO L500 AbstractCegarLoop]: Abstraction has has 105 places, 87 transitions, 315 flow [2023-12-05 21:08:07,573 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:07,573 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:08:07,573 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:08:07,573 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-05 21:08:07,574 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-12-05 21:08:07,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:08:07,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1245242002, now seen corresponding path program 1 times [2023-12-05 21:08:07,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:08:07,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496186071] [2023-12-05 21:08:07,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:08:07,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:08:07,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:08:07,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:08:07,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:08:07,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496186071] [2023-12-05 21:08:07,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496186071] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:08:07,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:08:07,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:08:07,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981046470] [2023-12-05 21:08:07,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:08:07,687 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:08:07,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:08:07,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:08:07,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:08:07,688 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 143 [2023-12-05 21:08:07,689 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 87 transitions, 315 flow. Second operand has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:07,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:08:07,689 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 143 [2023-12-05 21:08:07,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:08:07,734 INFO L124 PetriNetUnfolderBase]: 3/94 cut-off events. [2023-12-05 21:08:07,734 INFO L125 PetriNetUnfolderBase]: For 123/123 co-relation queries the response was YES. [2023-12-05 21:08:07,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 94 events. 3/94 cut-off events. For 123/123 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 74 event pairs, 3 based on Foata normal form. 1/95 useless extension candidates. Maximal degree in co-relation 128. Up to 18 conditions per place. [2023-12-05 21:08:07,736 INFO L140 encePairwiseOnDemand]: 141/143 looper letters, 15 selfloop transitions, 1 changer transitions 0/86 dead transitions. [2023-12-05 21:08:07,736 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 86 transitions, 341 flow [2023-12-05 21:08:07,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:08:07,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:08:07,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 353 transitions. [2023-12-05 21:08:07,738 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8228438228438228 [2023-12-05 21:08:07,738 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 353 transitions. [2023-12-05 21:08:07,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 353 transitions. [2023-12-05 21:08:07,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:08:07,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 353 transitions. [2023-12-05 21:08:07,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:07,740 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:07,741 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:07,743 INFO L308 CegarLoopForPetriNet]: 101 programPoint places, 5 predicate places. [2023-12-05 21:08:07,744 INFO L500 AbstractCegarLoop]: Abstraction has has 106 places, 86 transitions, 341 flow [2023-12-05 21:08:07,744 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:07,744 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:08:07,744 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:08:07,745 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-05 21:08:07,748 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-12-05 21:08:07,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:08:07,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1245242003, now seen corresponding path program 1 times [2023-12-05 21:08:07,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:08:07,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393994720] [2023-12-05 21:08:07,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:08:07,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:08:07,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:08:07,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:08:07,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:08:07,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393994720] [2023-12-05 21:08:07,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393994720] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:08:07,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:08:07,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:08:07,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114583913] [2023-12-05 21:08:07,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:08:07,834 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:08:07,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:08:07,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:08:07,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:08:07,836 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 143 [2023-12-05 21:08:07,836 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 86 transitions, 341 flow. Second operand has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:07,836 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:08:07,836 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 143 [2023-12-05 21:08:07,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:08:07,874 INFO L124 PetriNetUnfolderBase]: 3/93 cut-off events. [2023-12-05 21:08:07,874 INFO L125 PetriNetUnfolderBase]: For 180/180 co-relation queries the response was YES. [2023-12-05 21:08:07,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 93 events. 3/93 cut-off events. For 180/180 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 70 event pairs, 3 based on Foata normal form. 1/94 useless extension candidates. Maximal degree in co-relation 138. Up to 17 conditions per place. [2023-12-05 21:08:07,875 INFO L140 encePairwiseOnDemand]: 141/143 looper letters, 15 selfloop transitions, 1 changer transitions 0/85 dead transitions. [2023-12-05 21:08:07,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 85 transitions, 365 flow [2023-12-05 21:08:07,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:08:07,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:08:07,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 341 transitions. [2023-12-05 21:08:07,877 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7948717948717948 [2023-12-05 21:08:07,877 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 341 transitions. [2023-12-05 21:08:07,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 341 transitions. [2023-12-05 21:08:07,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:08:07,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 341 transitions. [2023-12-05 21:08:07,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:07,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:07,880 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:07,882 INFO L308 CegarLoopForPetriNet]: 101 programPoint places, 6 predicate places. [2023-12-05 21:08:07,882 INFO L500 AbstractCegarLoop]: Abstraction has has 107 places, 85 transitions, 365 flow [2023-12-05 21:08:07,883 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:07,883 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:08:07,883 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:08:07,883 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-05 21:08:07,884 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-12-05 21:08:07,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:08:07,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1575381007, now seen corresponding path program 1 times [2023-12-05 21:08:07,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:08:07,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765913242] [2023-12-05 21:08:07,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:08:07,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:08:07,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:08:07,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:08:07,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:08:07,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765913242] [2023-12-05 21:08:07,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765913242] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:08:07,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:08:07,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:08:07,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011355382] [2023-12-05 21:08:07,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:08:07,947 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:08:07,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:08:07,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:08:07,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:08:07,949 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 143 [2023-12-05 21:08:07,950 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 85 transitions, 365 flow. Second operand has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:07,950 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:08:07,950 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 143 [2023-12-05 21:08:07,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:08:08,001 INFO L124 PetriNetUnfolderBase]: 2/90 cut-off events. [2023-12-05 21:08:08,001 INFO L125 PetriNetUnfolderBase]: For 240/240 co-relation queries the response was YES. [2023-12-05 21:08:08,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 90 events. 2/90 cut-off events. For 240/240 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 56 event pairs, 0 based on Foata normal form. 2/92 useless extension candidates. Maximal degree in co-relation 136. Up to 16 conditions per place. [2023-12-05 21:08:08,002 INFO L140 encePairwiseOnDemand]: 141/143 looper letters, 16 selfloop transitions, 1 changer transitions 0/85 dead transitions. [2023-12-05 21:08:08,002 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 85 transitions, 405 flow [2023-12-05 21:08:08,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:08:08,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:08:08,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 342 transitions. [2023-12-05 21:08:08,004 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7972027972027972 [2023-12-05 21:08:08,005 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 342 transitions. [2023-12-05 21:08:08,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 342 transitions. [2023-12-05 21:08:08,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:08:08,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 342 transitions. [2023-12-05 21:08:08,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:08,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:08,007 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:08,008 INFO L308 CegarLoopForPetriNet]: 101 programPoint places, 7 predicate places. [2023-12-05 21:08:08,008 INFO L500 AbstractCegarLoop]: Abstraction has has 108 places, 85 transitions, 405 flow [2023-12-05 21:08:08,008 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:08,008 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:08:08,008 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:08:08,009 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-05 21:08:08,009 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-12-05 21:08:08,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:08:08,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1575381008, now seen corresponding path program 1 times [2023-12-05 21:08:08,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:08:08,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961872088] [2023-12-05 21:08:08,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:08:08,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:08:08,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:08:08,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:08:08,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:08:08,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961872088] [2023-12-05 21:08:08,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961872088] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:08:08,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:08:08,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:08:08,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80160680] [2023-12-05 21:08:08,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:08:08,090 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:08:08,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:08:08,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:08:08,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:08:08,091 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 143 [2023-12-05 21:08:08,092 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 85 transitions, 405 flow. Second operand has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:08,092 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:08:08,092 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 143 [2023-12-05 21:08:08,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:08:08,128 INFO L124 PetriNetUnfolderBase]: 1/87 cut-off events. [2023-12-05 21:08:08,128 INFO L125 PetriNetUnfolderBase]: For 300/300 co-relation queries the response was YES. [2023-12-05 21:08:08,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 87 events. 1/87 cut-off events. For 300/300 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 2/89 useless extension candidates. Maximal degree in co-relation 128. Up to 15 conditions per place. [2023-12-05 21:08:08,129 INFO L140 encePairwiseOnDemand]: 141/143 looper letters, 0 selfloop transitions, 0 changer transitions 84/84 dead transitions. [2023-12-05 21:08:08,129 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 84 transitions, 425 flow [2023-12-05 21:08:08,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:08:08,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:08:08,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 352 transitions. [2023-12-05 21:08:08,130 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8205128205128205 [2023-12-05 21:08:08,131 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 352 transitions. [2023-12-05 21:08:08,131 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 352 transitions. [2023-12-05 21:08:08,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:08:08,131 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 352 transitions. [2023-12-05 21:08:08,132 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:08,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:08,134 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:08,136 INFO L308 CegarLoopForPetriNet]: 101 programPoint places, 8 predicate places. [2023-12-05 21:08:08,137 INFO L500 AbstractCegarLoop]: Abstraction has has 109 places, 84 transitions, 425 flow [2023-12-05 21:08:08,137 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:08,147 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mix051_pso.opt_rmo.opt_tso.opt.i_BEv2_AllErrorsAtOnce [2023-12-05 21:08:08,185 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 12 remaining) [2023-12-05 21:08:08,185 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 12 remaining) [2023-12-05 21:08:08,187 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 12 remaining) [2023-12-05 21:08:08,188 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 12 remaining) [2023-12-05 21:08:08,188 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 12 remaining) [2023-12-05 21:08:08,188 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 12 remaining) [2023-12-05 21:08:08,188 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 12 remaining) [2023-12-05 21:08:08,188 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 12 remaining) [2023-12-05 21:08:08,188 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 12 remaining) [2023-12-05 21:08:08,189 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 12 remaining) [2023-12-05 21:08:08,189 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 12 remaining) [2023-12-05 21:08:08,189 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2023-12-05 21:08:08,189 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-05 21:08:08,190 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:08:08,192 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-05 21:08:08,193 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-05 21:08:08,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 09:08:08 BasicIcfg [2023-12-05 21:08:08,199 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-05 21:08:08,199 INFO L158 Benchmark]: Toolchain (without parser) took 3449.16ms. Allocated memory is still 256.9MB. Free memory was 200.8MB in the beginning and 167.9MB in the end (delta: 32.8MB). Peak memory consumption was 33.9MB. Max. memory is 8.0GB. [2023-12-05 21:08:08,199 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 190.8MB. Free memory was 135.7MB in the beginning and 135.6MB in the end (delta: 89.7kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-05 21:08:08,200 INFO L158 Benchmark]: CACSL2BoogieTranslator took 542.85ms. Allocated memory is still 256.9MB. Free memory was 200.8MB in the beginning and 177.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2023-12-05 21:08:08,204 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.81ms. Allocated memory is still 256.9MB. Free memory was 177.2MB in the beginning and 175.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-05 21:08:08,204 INFO L158 Benchmark]: Boogie Preprocessor took 34.93ms. Allocated memory is still 256.9MB. Free memory was 175.1MB in the beginning and 173.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-05 21:08:08,204 INFO L158 Benchmark]: RCFGBuilder took 672.83ms. Allocated memory is still 256.9MB. Free memory was 173.0MB in the beginning and 209.4MB in the end (delta: -36.5MB). Peak memory consumption was 29.1MB. Max. memory is 8.0GB. [2023-12-05 21:08:08,205 INFO L158 Benchmark]: TraceAbstraction took 2115.43ms. Allocated memory is still 256.9MB. Free memory was 208.4MB in the beginning and 167.9MB in the end (delta: 40.5MB). Peak memory consumption was 40.5MB. Max. memory is 8.0GB. [2023-12-05 21:08:08,207 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 190.8MB. Free memory was 135.7MB in the beginning and 135.6MB in the end (delta: 89.7kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 542.85ms. Allocated memory is still 256.9MB. Free memory was 200.8MB in the beginning and 177.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 77.81ms. Allocated memory is still 256.9MB. Free memory was 177.2MB in the beginning and 175.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.93ms. Allocated memory is still 256.9MB. Free memory was 175.1MB in the beginning and 173.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 672.83ms. Allocated memory is still 256.9MB. Free memory was 173.0MB in the beginning and 209.4MB in the end (delta: -36.5MB). Peak memory consumption was 29.1MB. Max. memory is 8.0GB. * TraceAbstraction took 2115.43ms. Allocated memory is still 256.9MB. Free memory was 208.4MB in the beginning and 167.9MB in the end (delta: 40.5MB). Peak memory consumption was 40.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 177 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: 2.0s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 48 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 48 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 140 IncrementalHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 60 mSDtfsCounter, 140 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=425occurred 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, 0.8s InterpolantComputationTime, 420 NumberOfCodeBlocks, 420 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 412 ConstructedInterpolants, 0 QuantifiedInterpolants, 556 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! [2023-12-05 21:08:08,232 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...