/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/mix026_pso.opt_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-6bf5761-m [2023-12-05 21:07:17,443 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-05 21:07:17,509 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 21:07:17,543 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-05 21:07:17,544 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-05 21:07:17,545 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-05 21:07:17,546 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-05 21:07:17,546 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-05 21:07:17,546 INFO L153 SettingsManager]: * Use SBE=true [2023-12-05 21:07:17,552 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-05 21:07:17,553 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-05 21:07:17,553 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-05 21:07:17,553 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-05 21:07:17,554 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-05 21:07:17,555 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-05 21:07:17,555 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-05 21:07:17,555 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-05 21:07:17,555 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-05 21:07:17,555 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-05 21:07:17,556 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-05 21:07:17,556 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-05 21:07:17,557 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-05 21:07:17,557 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-05 21:07:17,557 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-05 21:07:17,557 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-05 21:07:17,557 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-05 21:07:17,558 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-05 21:07:17,558 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-05 21:07:17,558 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-05 21:07:17,558 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-05 21:07:17,559 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-05 21:07:17,559 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-05 21:07:17,559 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-05 21:07:17,559 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer base address is valid at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer to allocated memory at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check array bounds for arrays that are off heap -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check if freed pointer was valid -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2023-12-05 21:07:17,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-05 21:07:17,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-05 21:07:17,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-05 21:07:17,821 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-05 21:07:17,822 INFO L274 PluginConnector]: CDTParser initialized [2023-12-05 21:07:17,823 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix026_pso.opt_rmo.opt.i [2023-12-05 21:07:19,095 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-05 21:07:19,337 INFO L384 CDTParser]: Found 1 translation units. [2023-12-05 21:07:19,338 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix026_pso.opt_rmo.opt.i [2023-12-05 21:07:19,351 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69c5ee85c/5207bc3227ed4dfcadc703ae9592ec98/FLAGc40d39a21 [2023-12-05 21:07:19,364 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69c5ee85c/5207bc3227ed4dfcadc703ae9592ec98 [2023-12-05 21:07:19,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-05 21:07:19,367 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-05 21:07:19,368 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-05 21:07:19,368 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-05 21:07:19,372 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-05 21:07:19,373 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:07:19" (1/1) ... [2023-12-05 21:07:19,374 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@315a9fb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:07:19, skipping insertion in model container [2023-12-05 21:07:19,374 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:07:19" (1/1) ... [2023-12-05 21:07:19,430 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-05 21:07:19,782 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-05 21:07:19,796 INFO L202 MainTranslator]: Completed pre-run [2023-12-05 21:07:19,847 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-05 21:07:19,881 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-05 21:07:19,881 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-05 21:07:19,886 INFO L206 MainTranslator]: Completed translation [2023-12-05 21:07:19,887 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:07:19 WrapperNode [2023-12-05 21:07:19,887 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-05 21:07:19,888 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-05 21:07:19,888 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-05 21:07:19,888 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-05 21:07:19,894 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:07:19" (1/1) ... [2023-12-05 21:07:19,909 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:07:19" (1/1) ... [2023-12-05 21:07:19,935 INFO L138 Inliner]: procedures = 177, calls = 70, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 150 [2023-12-05 21:07:19,935 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-05 21:07:19,936 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-05 21:07:19,936 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-05 21:07:19,936 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-05 21:07:19,949 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:07:19" (1/1) ... [2023-12-05 21:07:19,950 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:07:19" (1/1) ... [2023-12-05 21:07:19,953 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:07:19" (1/1) ... [2023-12-05 21:07:19,954 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:07:19" (1/1) ... [2023-12-05 21:07:19,962 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:07:19" (1/1) ... [2023-12-05 21:07:19,964 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:07:19" (1/1) ... [2023-12-05 21:07:19,966 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:07:19" (1/1) ... [2023-12-05 21:07:19,968 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:07:19" (1/1) ... [2023-12-05 21:07:19,984 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-05 21:07:19,984 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-05 21:07:19,985 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-05 21:07:19,985 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-05 21:07:19,985 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:07:19" (1/1) ... [2023-12-05 21:07:19,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-05 21:07:20,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-05 21:07:20,025 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 21:07:20,050 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 21:07:20,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-05 21:07:20,058 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-05 21:07:20,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-05 21:07:20,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-05 21:07:20,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-05 21:07:20,058 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-12-05 21:07:20,059 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-12-05 21:07:20,059 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-12-05 21:07:20,060 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-12-05 21:07:20,060 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-12-05 21:07:20,060 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-12-05 21:07:20,060 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-12-05 21:07:20,060 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-12-05 21:07:20,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-05 21:07:20,060 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-05 21:07:20,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-05 21:07:20,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-05 21:07:20,062 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 21:07:20,186 INFO L241 CfgBuilder]: Building ICFG [2023-12-05 21:07:20,188 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-05 21:07:20,566 INFO L282 CfgBuilder]: Performing block encoding [2023-12-05 21:07:20,661 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-05 21:07:20,661 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-05 21:07:20,662 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:07:20 BoogieIcfgContainer [2023-12-05 21:07:20,662 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-05 21:07:20,664 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-05 21:07:20,664 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-05 21:07:20,667 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-05 21:07:20,667 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 09:07:19" (1/3) ... [2023-12-05 21:07:20,669 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d1ff9ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:07:20, skipping insertion in model container [2023-12-05 21:07:20,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:07:19" (2/3) ... [2023-12-05 21:07:20,670 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d1ff9ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:07:20, skipping insertion in model container [2023-12-05 21:07:20,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:07:20" (3/3) ... [2023-12-05 21:07:20,671 INFO L112 eAbstractionObserver]: Analyzing ICFG mix026_pso.opt_rmo.opt.i [2023-12-05 21:07:20,687 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-05 21:07:20,688 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-12-05 21:07:20,688 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-05 21:07:20,757 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-05 21:07:20,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 155 places, 145 transitions, 306 flow [2023-12-05 21:07:20,872 INFO L124 PetriNetUnfolderBase]: 3/141 cut-off events. [2023-12-05 21:07:20,874 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-05 21:07:20,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 141 events. 3/141 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. 0/130 useless extension candidates. Maximal degree in co-relation 101. Up to 2 conditions per place. [2023-12-05 21:07:20,880 INFO L82 GeneralOperation]: Start removeDead. Operand has 155 places, 145 transitions, 306 flow [2023-12-05 21:07:20,887 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 92 transitions, 193 flow [2023-12-05 21:07:20,902 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-05 21:07:20,912 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;@11cd3549, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-05 21:07:20,913 INFO L363 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-12-05 21:07:20,932 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-05 21:07:20,932 INFO L124 PetriNetUnfolderBase]: 0/43 cut-off events. [2023-12-05 21:07:20,932 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-05 21:07:20,932 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:07:20,933 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] [2023-12-05 21:07:20,933 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 21:07:20,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:07:20,938 INFO L85 PathProgramCache]: Analyzing trace with hash -591093128, now seen corresponding path program 1 times [2023-12-05 21:07:20,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:07:20,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872072047] [2023-12-05 21:07:20,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:07:20,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:07:21,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:07:21,319 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 21:07:21,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:07:21,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872072047] [2023-12-05 21:07:21,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872072047] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:07:21,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:07:21,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:07:21,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716149424] [2023-12-05 21:07:21,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:07:21,333 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:07:21,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:07:21,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:07:21,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:07:21,371 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 145 [2023-12-05 21:07:21,377 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 92 transitions, 193 flow. Second operand has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:07:21,377 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:07:21,377 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 145 [2023-12-05 21:07:21,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:07:21,499 INFO L124 PetriNetUnfolderBase]: 20/165 cut-off events. [2023-12-05 21:07:21,500 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-12-05 21:07:21,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 235 conditions, 165 events. 20/165 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 420 event pairs, 20 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 175. Up to 53 conditions per place. [2023-12-05 21:07:21,504 INFO L140 encePairwiseOnDemand]: 143/145 looper letters, 20 selfloop transitions, 1 changer transitions 0/91 dead transitions. [2023-12-05 21:07:21,504 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 91 transitions, 233 flow [2023-12-05 21:07:21,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:07:21,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:07:21,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 349 transitions. [2023-12-05 21:07:21,525 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8022988505747126 [2023-12-05 21:07:21,526 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 349 transitions. [2023-12-05 21:07:21,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 349 transitions. [2023-12-05 21:07:21,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:07:21,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 349 transitions. [2023-12-05 21:07:21,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 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 21:07:21,538 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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 21:07:21,539 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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 21:07:21,543 INFO L308 CegarLoopForPetriNet]: 102 programPoint places, 1 predicate places. [2023-12-05 21:07:21,543 INFO L500 AbstractCegarLoop]: Abstraction has has 103 places, 91 transitions, 233 flow [2023-12-05 21:07:21,544 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:07:21,544 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:07:21,544 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] [2023-12-05 21:07:21,544 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-05 21:07:21,544 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 21:07:21,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:07:21,545 INFO L85 PathProgramCache]: Analyzing trace with hash -591093127, now seen corresponding path program 1 times [2023-12-05 21:07:21,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:07:21,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543364784] [2023-12-05 21:07:21,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:07:21,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:07:21,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:07:21,674 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 21:07:21,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:07:21,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543364784] [2023-12-05 21:07:21,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543364784] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:07:21,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:07:21,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:07:21,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139767912] [2023-12-05 21:07:21,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:07:21,676 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:07:21,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:07:21,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:07:21,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:07:21,678 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 145 [2023-12-05 21:07:21,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 91 transitions, 233 flow. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:07:21,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:07:21,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 145 [2023-12-05 21:07:21,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:07:21,765 INFO L124 PetriNetUnfolderBase]: 28/189 cut-off events. [2023-12-05 21:07:21,766 INFO L125 PetriNetUnfolderBase]: For 32/36 co-relation queries the response was YES. [2023-12-05 21:07:21,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 330 conditions, 189 events. 28/189 cut-off events. For 32/36 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 549 event pairs, 28 based on Foata normal form. 0/183 useless extension candidates. Maximal degree in co-relation 265. Up to 60 conditions per place. [2023-12-05 21:07:21,770 INFO L140 encePairwiseOnDemand]: 143/145 looper letters, 18 selfloop transitions, 1 changer transitions 0/90 dead transitions. [2023-12-05 21:07:21,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 90 transitions, 267 flow [2023-12-05 21:07:21,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:07:21,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:07:21,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 359 transitions. [2023-12-05 21:07:21,773 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.825287356321839 [2023-12-05 21:07:21,773 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 359 transitions. [2023-12-05 21:07:21,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 359 transitions. [2023-12-05 21:07:21,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:07:21,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 359 transitions. [2023-12-05 21:07:21,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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 21:07:21,779 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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 21:07:21,779 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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 21:07:21,780 INFO L308 CegarLoopForPetriNet]: 102 programPoint places, 2 predicate places. [2023-12-05 21:07:21,780 INFO L500 AbstractCegarLoop]: Abstraction has has 104 places, 90 transitions, 267 flow [2023-12-05 21:07:21,781 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:07:21,781 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:07:21,781 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] [2023-12-05 21:07:21,781 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-05 21:07:21,781 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-12-05 21:07:21,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:07:21,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1381575356, now seen corresponding path program 1 times [2023-12-05 21:07:21,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:07:21,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367897796] [2023-12-05 21:07:21,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:07:21,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:07:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:07:21,886 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 21:07:21,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:07:21,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367897796] [2023-12-05 21:07:21,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367897796] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:07:21,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:07:21,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:07:21,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772513954] [2023-12-05 21:07:21,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:07:21,897 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:07:21,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:07:21,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:07:21,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:07:21,900 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 145 [2023-12-05 21:07:21,901 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 90 transitions, 267 flow. Second operand has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:07:21,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:07:21,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 145 [2023-12-05 21:07:21,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:07:21,983 INFO L124 PetriNetUnfolderBase]: 28/188 cut-off events. [2023-12-05 21:07:21,983 INFO L125 PetriNetUnfolderBase]: For 93/105 co-relation queries the response was YES. [2023-12-05 21:07:21,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 393 conditions, 188 events. 28/188 cut-off events. For 93/105 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 557 event pairs, 28 based on Foata normal form. 1/183 useless extension candidates. Maximal degree in co-relation 320. Up to 60 conditions per place. [2023-12-05 21:07:21,988 INFO L140 encePairwiseOnDemand]: 143/145 looper letters, 19 selfloop transitions, 1 changer transitions 0/89 dead transitions. [2023-12-05 21:07:21,988 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 89 transitions, 303 flow [2023-12-05 21:07:21,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:07:21,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:07:21,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 348 transitions. [2023-12-05 21:07:21,990 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8 [2023-12-05 21:07:21,990 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 348 transitions. [2023-12-05 21:07:21,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 348 transitions. [2023-12-05 21:07:21,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:07:21,991 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 348 transitions. [2023-12-05 21:07:21,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 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 21:07:21,993 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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 21:07:21,993 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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 21:07:21,995 INFO L308 CegarLoopForPetriNet]: 102 programPoint places, 3 predicate places. [2023-12-05 21:07:21,995 INFO L500 AbstractCegarLoop]: Abstraction has has 105 places, 89 transitions, 303 flow [2023-12-05 21:07:21,995 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:07:21,996 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:07:21,996 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] [2023-12-05 21:07:21,996 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-05 21:07:21,996 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-12-05 21:07:21,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:07:21,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1381575355, now seen corresponding path program 1 times [2023-12-05 21:07:21,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:07:21,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696639846] [2023-12-05 21:07:21,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:07:21,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:07:22,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:07:22,164 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 21:07:22,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:07:22,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696639846] [2023-12-05 21:07:22,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696639846] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:07:22,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:07:22,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:07:22,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024955013] [2023-12-05 21:07:22,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:07:22,166 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:07:22,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:07:22,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:07:22,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:07:22,172 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 145 [2023-12-05 21:07:22,173 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 89 transitions, 303 flow. Second operand has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:07:22,173 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:07:22,173 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 145 [2023-12-05 21:07:22,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:07:22,246 INFO L124 PetriNetUnfolderBase]: 28/187 cut-off events. [2023-12-05 21:07:22,246 INFO L125 PetriNetUnfolderBase]: For 176/196 co-relation queries the response was YES. [2023-12-05 21:07:22,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 453 conditions, 187 events. 28/187 cut-off events. For 176/196 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 554 event pairs, 28 based on Foata normal form. 1/182 useless extension candidates. Maximal degree in co-relation 373. Up to 59 conditions per place. [2023-12-05 21:07:22,248 INFO L140 encePairwiseOnDemand]: 143/145 looper letters, 17 selfloop transitions, 1 changer transitions 0/88 dead transitions. [2023-12-05 21:07:22,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 88 transitions, 333 flow [2023-12-05 21:07:22,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:07:22,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:07:22,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 358 transitions. [2023-12-05 21:07:22,249 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8229885057471265 [2023-12-05 21:07:22,249 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 358 transitions. [2023-12-05 21:07:22,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 358 transitions. [2023-12-05 21:07:22,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:07:22,249 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 358 transitions. [2023-12-05 21:07:22,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 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 21:07:22,251 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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 21:07:22,251 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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 21:07:22,252 INFO L308 CegarLoopForPetriNet]: 102 programPoint places, 4 predicate places. [2023-12-05 21:07:22,252 INFO L500 AbstractCegarLoop]: Abstraction has has 106 places, 88 transitions, 333 flow [2023-12-05 21:07:22,252 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:07:22,252 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:07:22,252 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] [2023-12-05 21:07:22,252 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-05 21:07:22,253 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 21:07:22,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:07:22,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1739566925, now seen corresponding path program 1 times [2023-12-05 21:07:22,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:07:22,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422593266] [2023-12-05 21:07:22,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:07:22,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:07:22,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:07:22,297 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 21:07:22,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:07:22,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422593266] [2023-12-05 21:07:22,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422593266] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:07:22,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:07:22,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:07:22,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230661792] [2023-12-05 21:07:22,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:07:22,299 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:07:22,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:07:22,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:07:22,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:07:22,300 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 145 [2023-12-05 21:07:22,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 88 transitions, 333 flow. Second operand has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:07:22,301 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:07:22,301 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 145 [2023-12-05 21:07:22,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:07:22,360 INFO L124 PetriNetUnfolderBase]: 27/170 cut-off events. [2023-12-05 21:07:22,361 INFO L125 PetriNetUnfolderBase]: For 298/326 co-relation queries the response was YES. [2023-12-05 21:07:22,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 491 conditions, 170 events. 27/170 cut-off events. For 298/326 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 439 event pairs, 12 based on Foata normal form. 2/166 useless extension candidates. Maximal degree in co-relation 403. Up to 58 conditions per place. [2023-12-05 21:07:22,362 INFO L140 encePairwiseOnDemand]: 143/145 looper letters, 19 selfloop transitions, 1 changer transitions 0/88 dead transitions. [2023-12-05 21:07:22,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 88 transitions, 377 flow [2023-12-05 21:07:22,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:07:22,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:07:22,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 348 transitions. [2023-12-05 21:07:22,364 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8 [2023-12-05 21:07:22,364 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 348 transitions. [2023-12-05 21:07:22,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 348 transitions. [2023-12-05 21:07:22,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:07:22,364 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 348 transitions. [2023-12-05 21:07:22,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 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 21:07:22,366 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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 21:07:22,367 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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 21:07:22,369 INFO L308 CegarLoopForPetriNet]: 102 programPoint places, 5 predicate places. [2023-12-05 21:07:22,369 INFO L500 AbstractCegarLoop]: Abstraction has has 107 places, 88 transitions, 377 flow [2023-12-05 21:07:22,369 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:07:22,369 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:07:22,370 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] [2023-12-05 21:07:22,370 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-05 21:07:22,373 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 21:07:22,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:07:22,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1739566926, now seen corresponding path program 1 times [2023-12-05 21:07:22,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:07:22,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206970705] [2023-12-05 21:07:22,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:07:22,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:07:22,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:07:22,493 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 21:07:22,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:07:22,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206970705] [2023-12-05 21:07:22,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206970705] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:07:22,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:07:22,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:07:22,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210594447] [2023-12-05 21:07:22,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:07:22,495 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:07:22,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:07:22,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:07:22,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:07:22,496 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 145 [2023-12-05 21:07:22,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 88 transitions, 377 flow. Second operand has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:07:22,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:07:22,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 145 [2023-12-05 21:07:22,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:07:22,553 INFO L124 PetriNetUnfolderBase]: 26/167 cut-off events. [2023-12-05 21:07:22,553 INFO L125 PetriNetUnfolderBase]: For 432/468 co-relation queries the response was YES. [2023-12-05 21:07:22,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 536 conditions, 167 events. 26/167 cut-off events. For 432/468 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 424 event pairs, 12 based on Foata normal form. 2/163 useless extension candidates. Maximal degree in co-relation 441. Up to 55 conditions per place. [2023-12-05 21:07:22,555 INFO L140 encePairwiseOnDemand]: 143/145 looper letters, 17 selfloop transitions, 1 changer transitions 0/87 dead transitions. [2023-12-05 21:07:22,555 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 87 transitions, 405 flow [2023-12-05 21:07:22,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:07:22,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:07:22,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 358 transitions. [2023-12-05 21:07:22,557 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8229885057471265 [2023-12-05 21:07:22,557 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 358 transitions. [2023-12-05 21:07:22,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 358 transitions. [2023-12-05 21:07:22,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:07:22,557 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 358 transitions. [2023-12-05 21:07:22,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 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 21:07:22,559 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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 21:07:22,559 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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 21:07:22,562 INFO L308 CegarLoopForPetriNet]: 102 programPoint places, 6 predicate places. [2023-12-05 21:07:22,563 INFO L500 AbstractCegarLoop]: Abstraction has has 108 places, 87 transitions, 405 flow [2023-12-05 21:07:22,563 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:07:22,563 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:07:22,563 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:07:22,563 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-05 21:07:22,563 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 21:07:22,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:07:22,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1688754814, now seen corresponding path program 1 times [2023-12-05 21:07:22,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:07:22,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994807271] [2023-12-05 21:07:22,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:07:22,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:07:22,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:07:22,620 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 21:07:22,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:07:22,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994807271] [2023-12-05 21:07:22,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994807271] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:07:22,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:07:22,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:07:22,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777056914] [2023-12-05 21:07:22,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:07:22,622 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:07:22,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:07:22,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:07:22,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:07:22,623 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 145 [2023-12-05 21:07:22,624 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 87 transitions, 405 flow. Second operand has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:07:22,624 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:07:22,624 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 145 [2023-12-05 21:07:22,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:07:22,674 INFO L124 PetriNetUnfolderBase]: 19/138 cut-off events. [2023-12-05 21:07:22,675 INFO L125 PetriNetUnfolderBase]: For 492/516 co-relation queries the response was YES. [2023-12-05 21:07:22,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 500 conditions, 138 events. 19/138 cut-off events. For 492/516 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 272 event pairs, 0 based on Foata normal form. 6/142 useless extension candidates. Maximal degree in co-relation 397. Up to 48 conditions per place. [2023-12-05 21:07:22,676 INFO L140 encePairwiseOnDemand]: 143/145 looper letters, 21 selfloop transitions, 1 changer transitions 0/89 dead transitions. [2023-12-05 21:07:22,676 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 89 transitions, 483 flow [2023-12-05 21:07:22,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:07:22,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:07:22,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 349 transitions. [2023-12-05 21:07:22,678 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8022988505747126 [2023-12-05 21:07:22,678 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 349 transitions. [2023-12-05 21:07:22,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 349 transitions. [2023-12-05 21:07:22,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:07:22,678 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 349 transitions. [2023-12-05 21:07:22,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 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 21:07:22,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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 21:07:22,680 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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 21:07:22,681 INFO L308 CegarLoopForPetriNet]: 102 programPoint places, 7 predicate places. [2023-12-05 21:07:22,681 INFO L500 AbstractCegarLoop]: Abstraction has has 109 places, 89 transitions, 483 flow [2023-12-05 21:07:22,681 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:07:22,682 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:07:22,682 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:07:22,682 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-05 21:07:22,682 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 21:07:22,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:07:22,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1688754815, now seen corresponding path program 1 times [2023-12-05 21:07:22,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:07:22,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335129117] [2023-12-05 21:07:22,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:07:22,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:07:22,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:07:22,790 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 21:07:22,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:07:22,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335129117] [2023-12-05 21:07:22,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335129117] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:07:22,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:07:22,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:07:22,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938683164] [2023-12-05 21:07:22,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:07:22,792 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:07:22,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:07:22,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:07:22,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:07:22,793 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 145 [2023-12-05 21:07:22,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 89 transitions, 483 flow. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:07:22,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:07:22,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 145 [2023-12-05 21:07:22,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:07:22,843 INFO L124 PetriNetUnfolderBase]: 12/125 cut-off events. [2023-12-05 21:07:22,843 INFO L125 PetriNetUnfolderBase]: For 564/592 co-relation queries the response was YES. [2023-12-05 21:07:22,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 453 conditions, 125 events. 12/125 cut-off events. For 564/592 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 213 event pairs, 0 based on Foata normal form. 6/129 useless extension candidates. Maximal degree in co-relation 343. Up to 35 conditions per place. [2023-12-05 21:07:22,844 INFO L140 encePairwiseOnDemand]: 143/145 looper letters, 0 selfloop transitions, 0 changer transitions 88/88 dead transitions. [2023-12-05 21:07:22,844 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 88 transitions, 513 flow [2023-12-05 21:07:22,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:07:22,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:07:22,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 359 transitions. [2023-12-05 21:07:22,846 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.825287356321839 [2023-12-05 21:07:22,846 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 359 transitions. [2023-12-05 21:07:22,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 359 transitions. [2023-12-05 21:07:22,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:07:22,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 359 transitions. [2023-12-05 21:07:22,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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 21:07:22,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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 21:07:22,848 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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 21:07:22,849 INFO L308 CegarLoopForPetriNet]: 102 programPoint places, 8 predicate places. [2023-12-05 21:07:22,849 INFO L500 AbstractCegarLoop]: Abstraction has has 110 places, 88 transitions, 513 flow [2023-12-05 21:07:22,849 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:07:22,858 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mix026_pso.opt_rmo.opt.i_BEv2_AllErrorsAtOnce [2023-12-05 21:07:22,899 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 12 remaining) [2023-12-05 21:07:22,899 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 12 remaining) [2023-12-05 21:07:22,899 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 12 remaining) [2023-12-05 21:07:22,899 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 12 remaining) [2023-12-05 21:07:22,900 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 12 remaining) [2023-12-05 21:07:22,900 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 12 remaining) [2023-12-05 21:07:22,900 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 12 remaining) [2023-12-05 21:07:22,900 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 12 remaining) [2023-12-05 21:07:22,900 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 12 remaining) [2023-12-05 21:07:22,900 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 12 remaining) [2023-12-05 21:07:22,901 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 12 remaining) [2023-12-05 21:07:22,901 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2023-12-05 21:07:22,901 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-05 21:07:22,901 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:07:22,904 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-05 21:07:22,904 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-05 21:07:22,910 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 09:07:22 BasicIcfg [2023-12-05 21:07:22,910 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-05 21:07:22,910 INFO L158 Benchmark]: Toolchain (without parser) took 3543.54ms. Allocated memory is still 273.7MB. Free memory was 216.4MB in the beginning and 207.8MB in the end (delta: 8.5MB). Peak memory consumption was 9.6MB. Max. memory is 8.0GB. [2023-12-05 21:07:22,911 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 212.9MB. Free memory is still 158.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-05 21:07:22,911 INFO L158 Benchmark]: CACSL2BoogieTranslator took 519.09ms. Allocated memory is still 273.7MB. Free memory was 216.4MB in the beginning and 192.8MB in the end (delta: 23.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-12-05 21:07:22,911 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.61ms. Allocated memory is still 273.7MB. Free memory was 192.8MB in the beginning and 190.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-05 21:07:22,911 INFO L158 Benchmark]: Boogie Preprocessor took 47.84ms. Allocated memory is still 273.7MB. Free memory was 190.1MB in the beginning and 188.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-05 21:07:22,912 INFO L158 Benchmark]: RCFGBuilder took 678.10ms. Allocated memory is still 273.7MB. Free memory was 188.1MB in the beginning and 213.3MB in the end (delta: -25.2MB). Peak memory consumption was 21.4MB. Max. memory is 8.0GB. [2023-12-05 21:07:22,912 INFO L158 Benchmark]: TraceAbstraction took 2245.64ms. Allocated memory is still 273.7MB. Free memory was 212.3MB in the beginning and 207.8MB in the end (delta: 4.5MB). Peak memory consumption was 3.9MB. Max. memory is 8.0GB. [2023-12-05 21:07:22,913 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 212.9MB. Free memory is still 158.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 519.09ms. Allocated memory is still 273.7MB. Free memory was 216.4MB in the beginning and 192.8MB in the end (delta: 23.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.61ms. Allocated memory is still 273.7MB. Free memory was 192.8MB in the beginning and 190.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 47.84ms. Allocated memory is still 273.7MB. Free memory was 190.1MB in the beginning and 188.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 678.10ms. Allocated memory is still 273.7MB. Free memory was 188.1MB in the beginning and 213.3MB in the end (delta: -25.2MB). Peak memory consumption was 21.4MB. Max. memory is 8.0GB. * TraceAbstraction took 2245.64ms. Allocated memory is still 273.7MB. Free memory was 212.3MB in the beginning and 207.8MB in the end (delta: 4.5MB). Peak memory consumption was 3.9MB. 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, 180 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: 2.1s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 64 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 64 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 168 IncrementalHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 60 mSDtfsCounter, 168 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=513occurred in iteration=8, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 428 NumberOfCodeBlocks, 428 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 420 ConstructedInterpolants, 0 QuantifiedInterpolants, 564 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 21:07:22,931 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...