/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/mix055_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-6bf5761-m [2023-12-05 21:08:11,243 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-05 21:08:11,314 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 21:08:11,340 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-05 21:08:11,340 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-05 21:08:11,341 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-05 21:08:11,341 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-05 21:08:11,342 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-05 21:08:11,342 INFO L153 SettingsManager]: * Use SBE=true [2023-12-05 21:08:11,345 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-05 21:08:11,345 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-05 21:08:11,345 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-05 21:08:11,346 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-05 21:08:11,346 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-05 21:08:11,347 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-05 21:08:11,347 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-05 21:08:11,347 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-05 21:08:11,347 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-05 21:08:11,347 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-05 21:08:11,347 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-05 21:08:11,347 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-05 21:08:11,348 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-05 21:08:11,348 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-05 21:08:11,348 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-05 21:08:11,349 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-05 21:08:11,349 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-05 21:08:11,349 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-05 21:08:11,349 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-05 21:08:11,349 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-05 21:08:11,349 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-05 21:08:11,350 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-05 21:08:11,350 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-05 21:08:11,350 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-05 21:08:11,350 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer base address is valid at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer to allocated memory at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check array bounds for arrays that are off heap -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check if freed pointer was valid -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2023-12-05 21:08:11,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-05 21:08:11,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-05 21:08:11,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-05 21:08:11,577 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-05 21:08:11,577 INFO L274 PluginConnector]: CDTParser initialized [2023-12-05 21:08:11,578 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix055_tso.oepc.i [2023-12-05 21:08:12,842 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-05 21:08:13,055 INFO L384 CDTParser]: Found 1 translation units. [2023-12-05 21:08:13,055 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix055_tso.oepc.i [2023-12-05 21:08:13,073 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06490f9fc/78cd5765fd114e59a90afcb1e29697c7/FLAGf96bfac71 [2023-12-05 21:08:13,101 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06490f9fc/78cd5765fd114e59a90afcb1e29697c7 [2023-12-05 21:08:13,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-05 21:08:13,104 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-05 21:08:13,111 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-05 21:08:13,111 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-05 21:08:13,114 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-05 21:08:13,115 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:08:13" (1/1) ... [2023-12-05 21:08:13,116 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71ce10d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:13, skipping insertion in model container [2023-12-05 21:08:13,116 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:08:13" (1/1) ... [2023-12-05 21:08:13,156 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-05 21:08:13,433 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-05 21:08:13,446 INFO L202 MainTranslator]: Completed pre-run [2023-12-05 21:08:13,520 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-05 21:08:13,546 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-05 21:08:13,546 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-05 21:08:13,551 INFO L206 MainTranslator]: Completed translation [2023-12-05 21:08:13,552 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:13 WrapperNode [2023-12-05 21:08:13,552 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-05 21:08:13,553 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-05 21:08:13,553 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-05 21:08:13,553 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-05 21:08:13,558 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:13" (1/1) ... [2023-12-05 21:08:13,582 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:13" (1/1) ... [2023-12-05 21:08:13,609 INFO L138 Inliner]: procedures = 177, calls = 68, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 165 [2023-12-05 21:08:13,609 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-05 21:08:13,609 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-05 21:08:13,610 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-05 21:08:13,610 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-05 21:08:13,626 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:13" (1/1) ... [2023-12-05 21:08:13,627 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:13" (1/1) ... [2023-12-05 21:08:13,629 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:13" (1/1) ... [2023-12-05 21:08:13,629 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:13" (1/1) ... [2023-12-05 21:08:13,638 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:13" (1/1) ... [2023-12-05 21:08:13,640 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:13" (1/1) ... [2023-12-05 21:08:13,641 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:13" (1/1) ... [2023-12-05 21:08:13,642 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:13" (1/1) ... [2023-12-05 21:08:13,644 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-05 21:08:13,648 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-05 21:08:13,648 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-05 21:08:13,649 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-05 21:08:13,649 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:13" (1/1) ... [2023-12-05 21:08:13,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-05 21:08:13,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-05 21:08:13,685 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 21:08:13,691 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 21:08:13,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-05 21:08:13,713 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-05 21:08:13,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-05 21:08:13,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-05 21:08:13,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-05 21:08:13,713 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-12-05 21:08:13,713 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-12-05 21:08:13,713 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-12-05 21:08:13,713 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-12-05 21:08:13,714 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-12-05 21:08:13,714 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-12-05 21:08:13,714 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-12-05 21:08:13,714 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-12-05 21:08:13,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-05 21:08:13,714 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-05 21:08:13,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-05 21:08:13,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-05 21:08:13,715 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 21:08:13,833 INFO L241 CfgBuilder]: Building ICFG [2023-12-05 21:08:13,835 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-05 21:08:14,122 INFO L282 CfgBuilder]: Performing block encoding [2023-12-05 21:08:14,226 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-05 21:08:14,226 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-05 21:08:14,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:08:14 BoogieIcfgContainer [2023-12-05 21:08:14,228 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-05 21:08:14,230 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-05 21:08:14,230 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-05 21:08:14,232 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-05 21:08:14,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 09:08:13" (1/3) ... [2023-12-05 21:08:14,233 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76513f64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:08:14, skipping insertion in model container [2023-12-05 21:08:14,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:13" (2/3) ... [2023-12-05 21:08:14,234 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76513f64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:08:14, skipping insertion in model container [2023-12-05 21:08:14,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:08:14" (3/3) ... [2023-12-05 21:08:14,235 INFO L112 eAbstractionObserver]: Analyzing ICFG mix055_tso.oepc.i [2023-12-05 21:08:14,248 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-05 21:08:14,248 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-12-05 21:08:14,249 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-05 21:08:14,313 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-05 21:08:14,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 152 places, 142 transitions, 300 flow [2023-12-05 21:08:14,430 INFO L124 PetriNetUnfolderBase]: 3/138 cut-off events. [2023-12-05 21:08:14,432 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-05 21:08:14,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 138 events. 3/138 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 112 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 100. Up to 2 conditions per place. [2023-12-05 21:08:14,438 INFO L82 GeneralOperation]: Start removeDead. Operand has 152 places, 142 transitions, 300 flow [2023-12-05 21:08:14,446 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 90 transitions, 189 flow [2023-12-05 21:08:14,460 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-05 21:08:14,468 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;@587842f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-05 21:08:14,468 INFO L363 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-12-05 21:08:14,482 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-05 21:08:14,483 INFO L124 PetriNetUnfolderBase]: 0/41 cut-off events. [2023-12-05 21:08:14,483 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-05 21:08:14,483 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:08:14,484 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] [2023-12-05 21:08:14,484 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 21:08:14,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:08:14,490 INFO L85 PathProgramCache]: Analyzing trace with hash -363754096, now seen corresponding path program 1 times [2023-12-05 21:08:14,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:08:14,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234655663] [2023-12-05 21:08:14,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:08:14,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:08:14,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:08:14,813 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 21:08:14,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:08:14,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234655663] [2023-12-05 21:08:14,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234655663] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:08:14,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:08:14,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:08:14,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546110098] [2023-12-05 21:08:14,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:08:14,821 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:08:14,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:08:14,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:08:14,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:08:14,860 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 142 [2023-12-05 21:08:14,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 90 transitions, 189 flow. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 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 21:08:14,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:08:14,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 142 [2023-12-05 21:08:14,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:08:15,009 INFO L124 PetriNetUnfolderBase]: 81/333 cut-off events. [2023-12-05 21:08:15,009 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-12-05 21:08:15,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 512 conditions, 333 events. 81/333 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1595 event pairs, 81 based on Foata normal form. 0/321 useless extension candidates. Maximal degree in co-relation 454. Up to 152 conditions per place. [2023-12-05 21:08:15,014 INFO L140 encePairwiseOnDemand]: 140/142 looper letters, 21 selfloop transitions, 1 changer transitions 0/89 dead transitions. [2023-12-05 21:08:15,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 89 transitions, 231 flow [2023-12-05 21:08:15,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:08:15,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:08:15,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 335 transitions. [2023-12-05 21:08:15,029 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7863849765258216 [2023-12-05 21:08:15,029 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 335 transitions. [2023-12-05 21:08:15,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 335 transitions. [2023-12-05 21:08:15,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:08:15,034 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 335 transitions. [2023-12-05 21:08:15,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 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 21:08:15,042 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 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 21:08:15,042 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 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 21:08:15,045 INFO L308 CegarLoopForPetriNet]: 100 programPoint places, 1 predicate places. [2023-12-05 21:08:15,045 INFO L500 AbstractCegarLoop]: Abstraction has has 101 places, 89 transitions, 231 flow [2023-12-05 21:08:15,046 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 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 21:08:15,046 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:08:15,047 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] [2023-12-05 21:08:15,047 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-05 21:08:15,047 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 21:08:15,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:08:15,047 INFO L85 PathProgramCache]: Analyzing trace with hash -363754095, now seen corresponding path program 1 times [2023-12-05 21:08:15,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:08:15,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767673512] [2023-12-05 21:08:15,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:08:15,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:08:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:08:15,166 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 21:08:15,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:08:15,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767673512] [2023-12-05 21:08:15,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767673512] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:08:15,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:08:15,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:08:15,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749425348] [2023-12-05 21:08:15,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:08:15,167 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:08:15,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:08:15,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:08:15,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:08:15,169 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 142 [2023-12-05 21:08:15,169 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 89 transitions, 231 flow. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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 21:08:15,169 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:08:15,169 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 142 [2023-12-05 21:08:15,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:08:15,248 INFO L124 PetriNetUnfolderBase]: 109/372 cut-off events. [2023-12-05 21:08:15,249 INFO L125 PetriNetUnfolderBase]: For 91/97 co-relation queries the response was YES. [2023-12-05 21:08:15,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 761 conditions, 372 events. 109/372 cut-off events. For 91/97 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1862 event pairs, 109 based on Foata normal form. 0/365 useless extension candidates. Maximal degree in co-relation 698. Up to 179 conditions per place. [2023-12-05 21:08:15,253 INFO L140 encePairwiseOnDemand]: 140/142 looper letters, 19 selfloop transitions, 1 changer transitions 0/88 dead transitions. [2023-12-05 21:08:15,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 88 transitions, 267 flow [2023-12-05 21:08:15,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:08:15,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:08:15,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 345 transitions. [2023-12-05 21:08:15,255 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8098591549295775 [2023-12-05 21:08:15,255 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 345 transitions. [2023-12-05 21:08:15,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 345 transitions. [2023-12-05 21:08:15,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:08:15,256 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 345 transitions. [2023-12-05 21:08:15,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 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 21:08:15,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 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 21:08:15,259 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 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 21:08:15,259 INFO L308 CegarLoopForPetriNet]: 100 programPoint places, 2 predicate places. [2023-12-05 21:08:15,260 INFO L500 AbstractCegarLoop]: Abstraction has has 102 places, 88 transitions, 267 flow [2023-12-05 21:08:15,260 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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 21:08:15,261 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:08:15,261 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] [2023-12-05 21:08:15,261 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-05 21:08:15,261 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-12-05 21:08:15,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:08:15,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1179272647, now seen corresponding path program 1 times [2023-12-05 21:08:15,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:08:15,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772022201] [2023-12-05 21:08:15,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:08:15,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:08:15,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:08:15,385 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 21:08:15,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:08:15,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772022201] [2023-12-05 21:08:15,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772022201] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:08:15,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:08:15,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:08:15,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857613007] [2023-12-05 21:08:15,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:08:15,390 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:08:15,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:08:15,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:08:15,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:08:15,393 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 142 [2023-12-05 21:08:15,393 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 88 transitions, 267 flow. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 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 21:08:15,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:08:15,397 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 142 [2023-12-05 21:08:15,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:08:15,473 INFO L124 PetriNetUnfolderBase]: 108/376 cut-off events. [2023-12-05 21:08:15,474 INFO L125 PetriNetUnfolderBase]: For 230/246 co-relation queries the response was YES. [2023-12-05 21:08:15,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 943 conditions, 376 events. 108/376 cut-off events. For 230/246 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1908 event pairs, 107 based on Foata normal form. 2/372 useless extension candidates. Maximal degree in co-relation 873. Up to 178 conditions per place. [2023-12-05 21:08:15,477 INFO L140 encePairwiseOnDemand]: 140/142 looper letters, 20 selfloop transitions, 1 changer transitions 0/88 dead transitions. [2023-12-05 21:08:15,477 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 88 transitions, 311 flow [2023-12-05 21:08:15,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:08:15,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:08:15,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 346 transitions. [2023-12-05 21:08:15,479 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.812206572769953 [2023-12-05 21:08:15,480 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 346 transitions. [2023-12-05 21:08:15,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 346 transitions. [2023-12-05 21:08:15,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:08:15,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 346 transitions. [2023-12-05 21:08:15,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:15,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 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 21:08:15,482 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 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 21:08:15,519 INFO L308 CegarLoopForPetriNet]: 100 programPoint places, 3 predicate places. [2023-12-05 21:08:15,519 INFO L500 AbstractCegarLoop]: Abstraction has has 103 places, 88 transitions, 311 flow [2023-12-05 21:08:15,519 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 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 21:08:15,519 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:08:15,519 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] [2023-12-05 21:08:15,520 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-05 21:08:15,520 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-12-05 21:08:15,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:08:15,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1179272646, now seen corresponding path program 1 times [2023-12-05 21:08:15,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:08:15,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958663344] [2023-12-05 21:08:15,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:08:15,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:08:15,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:08:15,600 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 21:08:15,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:08:15,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958663344] [2023-12-05 21:08:15,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958663344] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:08:15,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:08:15,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:08:15,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221962990] [2023-12-05 21:08:15,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:08:15,602 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:08:15,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:08:15,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:08:15,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:08:15,603 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 142 [2023-12-05 21:08:15,603 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 88 transitions, 311 flow. Second operand has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 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 21:08:15,603 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:08:15,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 142 [2023-12-05 21:08:15,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:08:15,680 INFO L124 PetriNetUnfolderBase]: 107/370 cut-off events. [2023-12-05 21:08:15,681 INFO L125 PetriNetUnfolderBase]: For 406/432 co-relation queries the response was YES. [2023-12-05 21:08:15,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1110 conditions, 370 events. 107/370 cut-off events. For 406/432 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1857 event pairs, 106 based on Foata normal form. 4/368 useless extension candidates. Maximal degree in co-relation 1032. Up to 175 conditions per place. [2023-12-05 21:08:15,683 INFO L140 encePairwiseOnDemand]: 140/142 looper letters, 20 selfloop transitions, 1 changer transitions 0/87 dead transitions. [2023-12-05 21:08:15,683 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 87 transitions, 347 flow [2023-12-05 21:08:15,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:08:15,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:08:15,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 334 transitions. [2023-12-05 21:08:15,684 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.784037558685446 [2023-12-05 21:08:15,684 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 334 transitions. [2023-12-05 21:08:15,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 334 transitions. [2023-12-05 21:08:15,685 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:08:15,685 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 334 transitions. [2023-12-05 21:08:15,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:15,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 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 21:08:15,687 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 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 21:08:15,688 INFO L308 CegarLoopForPetriNet]: 100 programPoint places, 4 predicate places. [2023-12-05 21:08:15,688 INFO L500 AbstractCegarLoop]: Abstraction has has 104 places, 87 transitions, 347 flow [2023-12-05 21:08:15,689 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 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 21:08:15,689 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:08:15,689 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] [2023-12-05 21:08:15,689 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-05 21:08:15,689 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-12-05 21:08:15,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:08:15,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1080399873, now seen corresponding path program 1 times [2023-12-05 21:08:15,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:08:15,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025668339] [2023-12-05 21:08:15,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:08:15,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:08:15,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:08:15,743 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 21:08:15,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:08:15,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025668339] [2023-12-05 21:08:15,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025668339] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:08:15,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:08:15,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:08:15,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983133287] [2023-12-05 21:08:15,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:08:15,744 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:08:15,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:08:15,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:08:15,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:08:15,746 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 142 [2023-12-05 21:08:15,746 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 87 transitions, 347 flow. Second operand has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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 21:08:15,746 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:08:15,746 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 142 [2023-12-05 21:08:15,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:08:15,809 INFO L124 PetriNetUnfolderBase]: 100/329 cut-off events. [2023-12-05 21:08:15,809 INFO L125 PetriNetUnfolderBase]: For 615/621 co-relation queries the response was YES. [2023-12-05 21:08:15,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1202 conditions, 329 events. 100/329 cut-off events. For 615/621 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1497 event pairs, 18 based on Foata normal form. 6/335 useless extension candidates. Maximal degree in co-relation 1116. Up to 168 conditions per place. [2023-12-05 21:08:15,812 INFO L140 encePairwiseOnDemand]: 140/142 looper letters, 23 selfloop transitions, 1 changer transitions 0/89 dead transitions. [2023-12-05 21:08:15,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 89 transitions, 419 flow [2023-12-05 21:08:15,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:08:15,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:08:15,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 336 transitions. [2023-12-05 21:08:15,813 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7887323943661971 [2023-12-05 21:08:15,813 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 336 transitions. [2023-12-05 21:08:15,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 336 transitions. [2023-12-05 21:08:15,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:08:15,813 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 336 transitions. [2023-12-05 21:08:15,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:15,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 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 21:08:15,815 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 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 21:08:15,817 INFO L308 CegarLoopForPetriNet]: 100 programPoint places, 5 predicate places. [2023-12-05 21:08:15,817 INFO L500 AbstractCegarLoop]: Abstraction has has 105 places, 89 transitions, 419 flow [2023-12-05 21:08:15,817 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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 21:08:15,818 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:08:15,818 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] [2023-12-05 21:08:15,818 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-05 21:08:15,821 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-12-05 21:08:15,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:08:15,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1080399872, now seen corresponding path program 1 times [2023-12-05 21:08:15,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:08:15,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567135697] [2023-12-05 21:08:15,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:08:15,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:08:15,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:08:15,905 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 21:08:15,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:08:15,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567135697] [2023-12-05 21:08:15,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567135697] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:08:15,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:08:15,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:08:15,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134512860] [2023-12-05 21:08:15,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:08:15,907 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:08:15,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:08:15,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:08:15,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:08:15,909 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 142 [2023-12-05 21:08:15,909 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 89 transitions, 419 flow. Second operand has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 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 21:08:15,909 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:08:15,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 142 [2023-12-05 21:08:15,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:08:15,968 INFO L124 PetriNetUnfolderBase]: 93/316 cut-off events. [2023-12-05 21:08:15,968 INFO L125 PetriNetUnfolderBase]: For 845/855 co-relation queries the response was YES. [2023-12-05 21:08:15,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1295 conditions, 316 events. 93/316 cut-off events. For 845/855 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1409 event pairs, 18 based on Foata normal form. 6/322 useless extension candidates. Maximal degree in co-relation 1202. Up to 155 conditions per place. [2023-12-05 21:08:15,970 INFO L140 encePairwiseOnDemand]: 140/142 looper letters, 21 selfloop transitions, 1 changer transitions 0/88 dead transitions. [2023-12-05 21:08:15,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 88 transitions, 455 flow [2023-12-05 21:08:15,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:08:15,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:08:15,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 346 transitions. [2023-12-05 21:08:15,971 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.812206572769953 [2023-12-05 21:08:15,971 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 346 transitions. [2023-12-05 21:08:15,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 346 transitions. [2023-12-05 21:08:15,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:08:15,972 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 346 transitions. [2023-12-05 21:08:15,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:15,973 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 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 21:08:15,973 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 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 21:08:15,975 INFO L308 CegarLoopForPetriNet]: 100 programPoint places, 6 predicate places. [2023-12-05 21:08:15,975 INFO L500 AbstractCegarLoop]: Abstraction has has 106 places, 88 transitions, 455 flow [2023-12-05 21:08:15,976 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 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 21:08:15,976 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:08:15,976 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] [2023-12-05 21:08:15,976 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-05 21:08:15,977 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 21:08:15,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:08:15,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1980819607, now seen corresponding path program 1 times [2023-12-05 21:08:15,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:08:15,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281528420] [2023-12-05 21:08:15,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:08:15,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:08:15,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:08:16,049 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 21:08:16,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:08:16,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281528420] [2023-12-05 21:08:16,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281528420] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:08:16,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:08:16,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:08:16,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028866190] [2023-12-05 21:08:16,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:08:16,051 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:08:16,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:08:16,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:08:16,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:08:16,052 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 142 [2023-12-05 21:08:16,052 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 88 transitions, 455 flow. Second operand has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 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 21:08:16,052 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:08:16,052 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 142 [2023-12-05 21:08:16,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:08:16,120 INFO L124 PetriNetUnfolderBase]: 73/288 cut-off events. [2023-12-05 21:08:16,120 INFO L125 PetriNetUnfolderBase]: For 943/957 co-relation queries the response was YES. [2023-12-05 21:08:16,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1251 conditions, 288 events. 73/288 cut-off events. For 943/957 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1235 event pairs, 4 based on Foata normal form. 12/300 useless extension candidates. Maximal degree in co-relation 1150. Up to 135 conditions per place. [2023-12-05 21:08:16,124 INFO L140 encePairwiseOnDemand]: 140/142 looper letters, 26 selfloop transitions, 1 changer transitions 0/91 dead transitions. [2023-12-05 21:08:16,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 91 transitions, 557 flow [2023-12-05 21:08:16,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:08:16,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:08:16,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 336 transitions. [2023-12-05 21:08:16,125 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7887323943661971 [2023-12-05 21:08:16,126 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 336 transitions. [2023-12-05 21:08:16,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 336 transitions. [2023-12-05 21:08:16,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:08:16,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 336 transitions. [2023-12-05 21:08:16,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:16,128 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 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 21:08:16,128 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 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 21:08:16,129 INFO L308 CegarLoopForPetriNet]: 100 programPoint places, 7 predicate places. [2023-12-05 21:08:16,129 INFO L500 AbstractCegarLoop]: Abstraction has has 107 places, 91 transitions, 557 flow [2023-12-05 21:08:16,129 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 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 21:08:16,129 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:08:16,129 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] [2023-12-05 21:08:16,129 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-05 21:08:16,130 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 21:08:16,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:08:16,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1980819608, now seen corresponding path program 1 times [2023-12-05 21:08:16,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:08:16,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251412435] [2023-12-05 21:08:16,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:08:16,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:08:16,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:08:16,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:08:16,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:08:16,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251412435] [2023-12-05 21:08:16,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251412435] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:08:16,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:08:16,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:08:16,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489832451] [2023-12-05 21:08:16,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:08:16,219 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:08:16,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:08:16,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:08:16,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:08:16,221 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 142 [2023-12-05 21:08:16,221 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 91 transitions, 557 flow. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:16,221 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:08:16,221 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 142 [2023-12-05 21:08:16,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:08:16,282 INFO L124 PetriNetUnfolderBase]: 53/256 cut-off events. [2023-12-05 21:08:16,282 INFO L125 PetriNetUnfolderBase]: For 1029/1047 co-relation queries the response was YES. [2023-12-05 21:08:16,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1138 conditions, 256 events. 53/256 cut-off events. For 1029/1047 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1041 event pairs, 4 based on Foata normal form. 12/268 useless extension candidates. Maximal degree in co-relation 1030. Up to 103 conditions per place. [2023-12-05 21:08:16,284 INFO L140 encePairwiseOnDemand]: 140/142 looper letters, 0 selfloop transitions, 0 changer transitions 90/90 dead transitions. [2023-12-05 21:08:16,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 90 transitions, 597 flow [2023-12-05 21:08:16,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:08:16,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:08:16,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 346 transitions. [2023-12-05 21:08:16,285 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.812206572769953 [2023-12-05 21:08:16,285 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 346 transitions. [2023-12-05 21:08:16,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 346 transitions. [2023-12-05 21:08:16,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:08:16,286 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 346 transitions. [2023-12-05 21:08:16,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:16,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 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 21:08:16,288 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 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 21:08:16,290 INFO L308 CegarLoopForPetriNet]: 100 programPoint places, 8 predicate places. [2023-12-05 21:08:16,290 INFO L500 AbstractCegarLoop]: Abstraction has has 108 places, 90 transitions, 597 flow [2023-12-05 21:08:16,290 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:16,297 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mix055_tso.oepc.i_BEv2_AllErrorsAtOnce [2023-12-05 21:08:16,323 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 12 remaining) [2023-12-05 21:08:16,324 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 12 remaining) [2023-12-05 21:08:16,326 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 12 remaining) [2023-12-05 21:08:16,326 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 12 remaining) [2023-12-05 21:08:16,326 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 12 remaining) [2023-12-05 21:08:16,326 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 12 remaining) [2023-12-05 21:08:16,326 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 12 remaining) [2023-12-05 21:08:16,329 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 12 remaining) [2023-12-05 21:08:16,329 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 12 remaining) [2023-12-05 21:08:16,329 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 12 remaining) [2023-12-05 21:08:16,329 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 12 remaining) [2023-12-05 21:08:16,330 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2023-12-05 21:08:16,330 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-05 21:08:16,330 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:08:16,333 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-05 21:08:16,333 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-05 21:08:16,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 09:08:16 BasicIcfg [2023-12-05 21:08:16,339 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-05 21:08:16,340 INFO L158 Benchmark]: Toolchain (without parser) took 3236.07ms. Allocated memory was 283.1MB in the beginning and 373.3MB in the end (delta: 90.2MB). Free memory was 232.9MB in the beginning and 237.6MB in the end (delta: -4.7MB). Peak memory consumption was 86.5MB. Max. memory is 8.0GB. [2023-12-05 21:08:16,340 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 170.9MB. Free memory is still 117.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-05 21:08:16,340 INFO L158 Benchmark]: CACSL2BoogieTranslator took 441.28ms. Allocated memory is still 283.1MB. Free memory was 232.9MB in the beginning and 208.7MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-12-05 21:08:16,341 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.13ms. Allocated memory is still 283.1MB. Free memory was 208.7MB in the beginning and 205.6MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-05 21:08:16,342 INFO L158 Benchmark]: Boogie Preprocessor took 35.10ms. Allocated memory is still 283.1MB. Free memory was 205.6MB in the beginning and 203.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-05 21:08:16,342 INFO L158 Benchmark]: RCFGBuilder took 579.70ms. Allocated memory is still 283.1MB. Free memory was 203.5MB in the beginning and 161.6MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. [2023-12-05 21:08:16,342 INFO L158 Benchmark]: TraceAbstraction took 2109.37ms. Allocated memory was 283.1MB in the beginning and 373.3MB in the end (delta: 90.2MB). Free memory was 161.0MB in the beginning and 237.6MB in the end (delta: -76.5MB). Peak memory consumption was 14.2MB. Max. memory is 8.0GB. [2023-12-05 21:08:16,343 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 170.9MB. Free memory is still 117.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 441.28ms. Allocated memory is still 283.1MB. Free memory was 232.9MB in the beginning and 208.7MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 56.13ms. Allocated memory is still 283.1MB. Free memory was 208.7MB in the beginning and 205.6MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 35.10ms. Allocated memory is still 283.1MB. Free memory was 205.6MB in the beginning and 203.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 579.70ms. Allocated memory is still 283.1MB. Free memory was 203.5MB in the beginning and 161.6MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. * TraceAbstraction took 2109.37ms. Allocated memory was 283.1MB in the beginning and 373.3MB in the end (delta: 90.2MB). Free memory was 161.0MB in the beginning and 237.6MB in the end (delta: -76.5MB). Peak memory consumption was 14.2MB. 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, 176 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: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 72 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 72 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 190 IncrementalHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 60 mSDtfsCounter, 190 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=597occurred in iteration=8, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 412 NumberOfCodeBlocks, 412 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 404 ConstructedInterpolants, 0 QuantifiedInterpolants, 548 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 21:08:16,358 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...