/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.pointer.base.address.is.valid.at.dereference ASSERTandASSUME --cacsl2boogietranslator.pointer.to.allocated.memory.at.dereference ASSERTandASSUME --cacsl2boogietranslator.check.array.bounds.for.arrays.that.are.off.heap ASSERTandASSUME --cacsl2boogietranslator.check.if.freed.pointer.was.valid true --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true -i ../../../trunk/examples/svcomp/pthread-wmm/mix007.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 04:42:57,916 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 04:42:57,975 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-11-30 04:42:58,009 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 04:42:58,010 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 04:42:58,010 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 04:42:58,011 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 04:42:58,011 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 04:42:58,011 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 04:42:58,014 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 04:42:58,015 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 04:42:58,015 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 04:42:58,015 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 04:42:58,016 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 04:42:58,016 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 04:42:58,016 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 04:42:58,016 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 04:42:58,016 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 04:42:58,016 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 04:42:58,017 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 04:42:58,017 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 04:42:58,017 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 04:42:58,017 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 04:42:58,017 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 04:42:58,018 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 04:42:58,018 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 04:42:58,018 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 04:42:58,018 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 04:42:58,018 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 04:42:58,018 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 04:42:58,019 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 04:42:58,019 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 04:42:58,019 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 04:42:58,019 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer base address is valid at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer to allocated memory at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check array bounds for arrays that are off heap -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check if freed pointer was valid -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2023-11-30 04:42:58,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 04:42:58,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 04:42:58,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 04:42:58,222 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 04:42:58,222 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 04:42:58,223 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix007.oepc.i [2023-11-30 04:42:59,240 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 04:42:59,507 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 04:42:59,508 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix007.oepc.i [2023-11-30 04:42:59,523 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d4e91148/9fe45620c97745d187576d3f4b6af757/FLAG744d25fed [2023-11-30 04:42:59,547 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d4e91148/9fe45620c97745d187576d3f4b6af757 [2023-11-30 04:42:59,549 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 04:42:59,550 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 04:42:59,553 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 04:42:59,553 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 04:42:59,556 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 04:42:59,556 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 04:42:59" (1/1) ... [2023-11-30 04:42:59,558 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b6f3a74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:42:59, skipping insertion in model container [2023-11-30 04:42:59,558 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 04:42:59" (1/1) ... [2023-11-30 04:42:59,603 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 04:42:59,954 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 04:42:59,967 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 04:43:00,038 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 04:43:00,092 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 04:43:00,092 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 04:43:00,097 INFO L206 MainTranslator]: Completed translation [2023-11-30 04:43:00,097 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:43:00 WrapperNode [2023-11-30 04:43:00,097 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 04:43:00,098 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 04:43:00,098 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 04:43:00,098 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 04:43:00,103 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:43:00" (1/1) ... [2023-11-30 04:43:00,163 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:43:00" (1/1) ... [2023-11-30 04:43:00,184 INFO L138 Inliner]: procedures = 177, calls = 72, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 151 [2023-11-30 04:43:00,185 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 04:43:00,185 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 04:43:00,185 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 04:43:00,186 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 04:43:00,192 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:43:00" (1/1) ... [2023-11-30 04:43:00,192 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:43:00" (1/1) ... [2023-11-30 04:43:00,194 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:43:00" (1/1) ... [2023-11-30 04:43:00,194 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:43:00" (1/1) ... [2023-11-30 04:43:00,200 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:43:00" (1/1) ... [2023-11-30 04:43:00,202 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:43:00" (1/1) ... [2023-11-30 04:43:00,204 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:43:00" (1/1) ... [2023-11-30 04:43:00,205 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:43:00" (1/1) ... [2023-11-30 04:43:00,207 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 04:43:00,208 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 04:43:00,208 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 04:43:00,208 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 04:43:00,209 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:43:00" (1/1) ... [2023-11-30 04:43:00,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 04:43:00,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 04:43:00,315 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-30 04:43:00,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-30 04:43:00,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 04:43:00,365 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-30 04:43:00,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 04:43:00,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 04:43:00,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 04:43:00,369 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-30 04:43:00,370 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-30 04:43:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-30 04:43:00,370 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-30 04:43:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-30 04:43:00,370 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-30 04:43:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-30 04:43:00,370 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-30 04:43:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 04:43:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-30 04:43:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 04:43:00,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 04:43:00,372 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-30 04:43:00,569 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 04:43:00,576 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 04:43:01,043 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 04:43:01,238 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 04:43:01,238 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-30 04:43:01,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 04:43:01 BoogieIcfgContainer [2023-11-30 04:43:01,239 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 04:43:01,249 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 04:43:01,249 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 04:43:01,251 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 04:43:01,251 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 04:42:59" (1/3) ... [2023-11-30 04:43:01,252 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46f052f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 04:43:01, skipping insertion in model container [2023-11-30 04:43:01,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:43:00" (2/3) ... [2023-11-30 04:43:01,252 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46f052f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 04:43:01, skipping insertion in model container [2023-11-30 04:43:01,253 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 04:43:01" (3/3) ... [2023-11-30 04:43:01,253 INFO L112 eAbstractionObserver]: Analyzing ICFG mix007.oepc.i [2023-11-30 04:43:01,275 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 04:43:01,275 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-30 04:43:01,276 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 04:43:01,324 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-30 04:43:01,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 147 transitions, 310 flow [2023-11-30 04:43:01,494 INFO L124 PetriNetUnfolderBase]: 3/143 cut-off events. [2023-11-30 04:43:01,494 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 04:43:01,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 143 events. 3/143 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 116 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 102. Up to 2 conditions per place. [2023-11-30 04:43:01,500 INFO L82 GeneralOperation]: Start removeDead. Operand has 157 places, 147 transitions, 310 flow [2023-11-30 04:43:01,505 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 94 transitions, 197 flow [2023-11-30 04:43:01,527 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 04:43:01,534 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;@29df9195, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 04:43:01,534 INFO L363 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-11-30 04:43:01,575 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 04:43:01,575 INFO L124 PetriNetUnfolderBase]: 0/44 cut-off events. [2023-11-30 04:43:01,575 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 04:43:01,575 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:43:01,576 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 04:43:01,576 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-30 04:43:01,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:43:01,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1486246912, now seen corresponding path program 1 times [2023-11-30 04:43:01,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:43:01,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263641636] [2023-11-30 04:43:01,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:43:01,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:43:01,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:43:02,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 04:43:02,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:43:02,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263641636] [2023-11-30 04:43:02,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263641636] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:43:02,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:43:02,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:43:02,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405424483] [2023-11-30 04:43:02,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:43:02,020 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:43:02,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:43:02,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:43:02,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:43:02,069 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 147 [2023-11-30 04:43:02,076 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 94 transitions, 197 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) [2023-11-30 04:43:02,076 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:43:02,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 147 [2023-11-30 04:43:02,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:43:02,299 INFO L124 PetriNetUnfolderBase]: 85/356 cut-off events. [2023-11-30 04:43:02,299 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-30 04:43:02,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 545 conditions, 356 events. 85/356 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1671 event pairs, 85 based on Foata normal form. 0/335 useless extension candidates. Maximal degree in co-relation 484. Up to 160 conditions per place. [2023-11-30 04:43:02,304 INFO L140 encePairwiseOnDemand]: 145/147 looper letters, 21 selfloop transitions, 1 changer transitions 0/93 dead transitions. [2023-11-30 04:43:02,304 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 93 transitions, 239 flow [2023-11-30 04:43:02,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:43:02,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:43:02,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 350 transitions. [2023-11-30 04:43:02,318 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7936507936507936 [2023-11-30 04:43:02,318 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 350 transitions. [2023-11-30 04:43:02,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 350 transitions. [2023-11-30 04:43:02,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:43:02,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 350 transitions. [2023-11-30 04:43:02,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2023-11-30 04:43:02,328 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:43:02,329 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:43:02,333 INFO L307 CegarLoopForPetriNet]: 104 programPoint places, 1 predicate places. [2023-11-30 04:43:02,333 INFO L500 AbstractCegarLoop]: Abstraction has has 105 places, 93 transitions, 239 flow [2023-11-30 04:43:02,334 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) [2023-11-30 04:43:02,334 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:43:02,334 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 04:43:02,334 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 04:43:02,335 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-30 04:43:02,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:43:02,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1486246911, now seen corresponding path program 1 times [2023-11-30 04:43:02,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:43:02,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353281281] [2023-11-30 04:43:02,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:43:02,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:43:02,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:43:02,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 04:43:02,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:43:02,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353281281] [2023-11-30 04:43:02,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353281281] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:43:02,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:43:02,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:43:02,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757087788] [2023-11-30 04:43:02,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:43:02,548 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:43:02,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:43:02,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:43:02,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:43:02,550 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 147 [2023-11-30 04:43:02,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 93 transitions, 239 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) [2023-11-30 04:43:02,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:43:02,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 147 [2023-11-30 04:43:02,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:43:02,668 INFO L124 PetriNetUnfolderBase]: 114/390 cut-off events. [2023-11-30 04:43:02,669 INFO L125 PetriNetUnfolderBase]: For 105/127 co-relation queries the response was YES. [2023-11-30 04:43:02,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 799 conditions, 390 events. 114/390 cut-off events. For 105/127 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1872 event pairs, 114 based on Foata normal form. 0/377 useless extension candidates. Maximal degree in co-relation 733. Up to 188 conditions per place. [2023-11-30 04:43:02,672 INFO L140 encePairwiseOnDemand]: 145/147 looper letters, 19 selfloop transitions, 1 changer transitions 0/92 dead transitions. [2023-11-30 04:43:02,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 92 transitions, 275 flow [2023-11-30 04:43:02,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:43:02,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:43:02,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 360 transitions. [2023-11-30 04:43:02,674 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8163265306122449 [2023-11-30 04:43:02,674 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 360 transitions. [2023-11-30 04:43:02,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 360 transitions. [2023-11-30 04:43:02,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:43:02,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 360 transitions. [2023-11-30 04:43:02,675 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:43:02,677 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:43:02,677 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:43:02,678 INFO L307 CegarLoopForPetriNet]: 104 programPoint places, 2 predicate places. [2023-11-30 04:43:02,678 INFO L500 AbstractCegarLoop]: Abstraction has has 106 places, 92 transitions, 275 flow [2023-11-30 04:43:02,679 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) [2023-11-30 04:43:02,679 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:43:02,679 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 04:43:02,679 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 04:43:02,679 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-30 04:43:02,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:43:02,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1007849120, now seen corresponding path program 1 times [2023-11-30 04:43:02,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:43:02,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631398817] [2023-11-30 04:43:02,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:43:02,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:43:02,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:43:02,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 04:43:02,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:43:02,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631398817] [2023-11-30 04:43:02,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631398817] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:43:02,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:43:02,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:43:02,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577016659] [2023-11-30 04:43:02,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:43:02,788 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:43:02,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:43:02,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:43:02,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:43:02,790 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 147 [2023-11-30 04:43:02,790 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 92 transitions, 275 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) [2023-11-30 04:43:02,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:43:02,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 147 [2023-11-30 04:43:02,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:43:02,864 INFO L124 PetriNetUnfolderBase]: 112/373 cut-off events. [2023-11-30 04:43:02,864 INFO L125 PetriNetUnfolderBase]: For 266/306 co-relation queries the response was YES. [2023-11-30 04:43:02,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 965 conditions, 373 events. 112/373 cut-off events. For 266/306 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1706 event pairs, 54 based on Foata normal form. 3/366 useless extension candidates. Maximal degree in co-relation 892. Up to 186 conditions per place. [2023-11-30 04:43:02,869 INFO L140 encePairwiseOnDemand]: 145/147 looper letters, 21 selfloop transitions, 1 changer transitions 0/93 dead transitions. [2023-11-30 04:43:02,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 93 transitions, 327 flow [2023-11-30 04:43:02,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:43:02,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:43:02,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 362 transitions. [2023-11-30 04:43:02,870 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8208616780045351 [2023-11-30 04:43:02,870 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 362 transitions. [2023-11-30 04:43:02,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 362 transitions. [2023-11-30 04:43:02,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:43:02,871 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 362 transitions. [2023-11-30 04:43:02,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:43:02,872 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:43:02,872 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:43:02,873 INFO L307 CegarLoopForPetriNet]: 104 programPoint places, 3 predicate places. [2023-11-30 04:43:02,873 INFO L500 AbstractCegarLoop]: Abstraction has has 107 places, 93 transitions, 327 flow [2023-11-30 04:43:02,874 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) [2023-11-30 04:43:02,874 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:43:02,874 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 04:43:02,874 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 04:43:02,874 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-30 04:43:02,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:43:02,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1007849119, now seen corresponding path program 1 times [2023-11-30 04:43:02,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:43:02,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135265177] [2023-11-30 04:43:02,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:43:02,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:43:02,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:43:02,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 04:43:02,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:43:02,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135265177] [2023-11-30 04:43:02,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135265177] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:43:02,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:43:02,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:43:02,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361409556] [2023-11-30 04:43:02,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:43:02,931 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:43:02,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:43:02,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:43:02,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:43:02,932 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 147 [2023-11-30 04:43:02,932 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 93 transitions, 327 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) [2023-11-30 04:43:02,932 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:43:02,933 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 147 [2023-11-30 04:43:02,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:43:02,991 INFO L124 PetriNetUnfolderBase]: 110/368 cut-off events. [2023-11-30 04:43:02,992 INFO L125 PetriNetUnfolderBase]: For 471/531 co-relation queries the response was YES. [2023-11-30 04:43:02,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1134 conditions, 368 events. 110/368 cut-off events. For 471/531 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1680 event pairs, 54 based on Foata normal form. 3/361 useless extension candidates. Maximal degree in co-relation 1053. Up to 181 conditions per place. [2023-11-30 04:43:02,994 INFO L140 encePairwiseOnDemand]: 145/147 looper letters, 21 selfloop transitions, 1 changer transitions 0/92 dead transitions. [2023-11-30 04:43:02,994 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 92 transitions, 365 flow [2023-11-30 04:43:02,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:43:02,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:43:02,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 350 transitions. [2023-11-30 04:43:02,995 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7936507936507936 [2023-11-30 04:43:02,995 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 350 transitions. [2023-11-30 04:43:02,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 350 transitions. [2023-11-30 04:43:02,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:43:02,996 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 350 transitions. [2023-11-30 04:43:02,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2023-11-30 04:43:02,997 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:43:02,997 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:43:02,998 INFO L307 CegarLoopForPetriNet]: 104 programPoint places, 4 predicate places. [2023-11-30 04:43:02,998 INFO L500 AbstractCegarLoop]: Abstraction has has 108 places, 92 transitions, 365 flow [2023-11-30 04:43:02,998 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) [2023-11-30 04:43:02,998 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:43:02,998 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 04:43:02,998 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 04:43:02,999 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-30 04:43:02,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:43:02,999 INFO L85 PathProgramCache]: Analyzing trace with hash -594971686, now seen corresponding path program 1 times [2023-11-30 04:43:02,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:43:02,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136441470] [2023-11-30 04:43:02,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:43:02,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:43:03,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:43:03,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 04:43:03,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:43:03,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136441470] [2023-11-30 04:43:03,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136441470] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:43:03,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:43:03,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:43:03,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398496124] [2023-11-30 04:43:03,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:43:03,048 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:43:03,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:43:03,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:43:03,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:43:03,049 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 147 [2023-11-30 04:43:03,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 92 transitions, 365 flow. Second operand has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:43:03,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:43:03,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 147 [2023-11-30 04:43:03,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:43:03,124 INFO L124 PetriNetUnfolderBase]: 103/355 cut-off events. [2023-11-30 04:43:03,124 INFO L125 PetriNetUnfolderBase]: For 725/805 co-relation queries the response was YES. [2023-11-30 04:43:03,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1260 conditions, 355 events. 103/355 cut-off events. For 725/805 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1597 event pairs, 18 based on Foata normal form. 6/354 useless extension candidates. Maximal degree in co-relation 1171. Up to 174 conditions per place. [2023-11-30 04:43:03,127 INFO L140 encePairwiseOnDemand]: 145/147 looper letters, 24 selfloop transitions, 1 changer transitions 0/94 dead transitions. [2023-11-30 04:43:03,127 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 94 transitions, 439 flow [2023-11-30 04:43:03,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:43:03,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:43:03,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 351 transitions. [2023-11-30 04:43:03,128 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7959183673469388 [2023-11-30 04:43:03,128 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 351 transitions. [2023-11-30 04:43:03,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 351 transitions. [2023-11-30 04:43:03,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:43:03,129 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 351 transitions. [2023-11-30 04:43:03,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:43:03,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:43:03,130 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:43:03,132 INFO L307 CegarLoopForPetriNet]: 104 programPoint places, 5 predicate places. [2023-11-30 04:43:03,132 INFO L500 AbstractCegarLoop]: Abstraction has has 109 places, 94 transitions, 439 flow [2023-11-30 04:43:03,132 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) [2023-11-30 04:43:03,133 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:43:03,133 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 04:43:03,133 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-30 04:43:03,136 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-30 04:43:03,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:43:03,137 INFO L85 PathProgramCache]: Analyzing trace with hash -594971685, now seen corresponding path program 1 times [2023-11-30 04:43:03,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:43:03,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107923463] [2023-11-30 04:43:03,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:43:03,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:43:03,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:43:03,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 04:43:03,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:43:03,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107923463] [2023-11-30 04:43:03,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107923463] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:43:03,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:43:03,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:43:03,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169297800] [2023-11-30 04:43:03,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:43:03,207 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:43:03,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:43:03,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:43:03,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:43:03,208 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 147 [2023-11-30 04:43:03,209 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 94 transitions, 439 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) [2023-11-30 04:43:03,209 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:43:03,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 147 [2023-11-30 04:43:03,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:43:03,279 INFO L124 PetriNetUnfolderBase]: 96/342 cut-off events. [2023-11-30 04:43:03,279 INFO L125 PetriNetUnfolderBase]: For 1008/1108 co-relation queries the response was YES. [2023-11-30 04:43:03,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1359 conditions, 342 events. 96/342 cut-off events. For 1008/1108 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1489 event pairs, 18 based on Foata normal form. 12/347 useless extension candidates. Maximal degree in co-relation 1263. Up to 161 conditions per place. [2023-11-30 04:43:03,282 INFO L140 encePairwiseOnDemand]: 145/147 looper letters, 22 selfloop transitions, 1 changer transitions 0/93 dead transitions. [2023-11-30 04:43:03,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 93 transitions, 477 flow [2023-11-30 04:43:03,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:43:03,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:43:03,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 361 transitions. [2023-11-30 04:43:03,284 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.81859410430839 [2023-11-30 04:43:03,284 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 361 transitions. [2023-11-30 04:43:03,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 361 transitions. [2023-11-30 04:43:03,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:43:03,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 361 transitions. [2023-11-30 04:43:03,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:43:03,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:43:03,286 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:43:03,286 INFO L307 CegarLoopForPetriNet]: 104 programPoint places, 6 predicate places. [2023-11-30 04:43:03,287 INFO L500 AbstractCegarLoop]: Abstraction has has 110 places, 93 transitions, 477 flow [2023-11-30 04:43:03,287 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) [2023-11-30 04:43:03,287 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:43:03,287 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 04:43:03,287 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-30 04:43:03,287 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)] === [2023-11-30 04:43:03,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:43:03,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1070465716, now seen corresponding path program 1 times [2023-11-30 04:43:03,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:43:03,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625896839] [2023-11-30 04:43:03,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:43:03,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:43:03,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:43:03,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 04:43:03,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:43:03,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625896839] [2023-11-30 04:43:03,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625896839] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:43:03,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:43:03,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:43:03,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032899593] [2023-11-30 04:43:03,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:43:03,331 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:43:03,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:43:03,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:43:03,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:43:03,332 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 147 [2023-11-30 04:43:03,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 93 transitions, 477 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) [2023-11-30 04:43:03,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:43:03,332 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 147 [2023-11-30 04:43:03,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:43:03,417 INFO L124 PetriNetUnfolderBase]: 76/334 cut-off events. [2023-11-30 04:43:03,417 INFO L125 PetriNetUnfolderBase]: For 1074/1188 co-relation queries the response was YES. [2023-11-30 04:43:03,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1341 conditions, 334 events. 76/334 cut-off events. For 1074/1188 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1388 event pairs, 6 based on Foata normal form. 12/345 useless extension candidates. Maximal degree in co-relation 1237. Up to 141 conditions per place. [2023-11-30 04:43:03,419 INFO L140 encePairwiseOnDemand]: 145/147 looper letters, 27 selfloop transitions, 1 changer transitions 0/96 dead transitions. [2023-11-30 04:43:03,419 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 96 transitions, 581 flow [2023-11-30 04:43:03,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:43:03,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:43:03,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 351 transitions. [2023-11-30 04:43:03,421 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7959183673469388 [2023-11-30 04:43:03,421 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 351 transitions. [2023-11-30 04:43:03,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 351 transitions. [2023-11-30 04:43:03,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:43:03,421 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 351 transitions. [2023-11-30 04:43:03,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:43:03,422 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:43:03,422 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:43:03,423 INFO L307 CegarLoopForPetriNet]: 104 programPoint places, 7 predicate places. [2023-11-30 04:43:03,423 INFO L500 AbstractCegarLoop]: Abstraction has has 111 places, 96 transitions, 581 flow [2023-11-30 04:43:03,423 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) [2023-11-30 04:43:03,423 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:43:03,423 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 04:43:03,423 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-30 04:43:03,423 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)] === [2023-11-30 04:43:03,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:43:03,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1070465715, now seen corresponding path program 1 times [2023-11-30 04:43:03,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:43:03,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813985414] [2023-11-30 04:43:03,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:43:03,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:43:03,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:43:03,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 04:43:03,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:43:03,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813985414] [2023-11-30 04:43:03,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813985414] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:43:03,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:43:03,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:43:03,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849710730] [2023-11-30 04:43:03,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:43:03,478 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:43:03,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:43:03,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:43:03,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:43:03,479 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 147 [2023-11-30 04:43:03,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 96 transitions, 581 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) [2023-11-30 04:43:03,479 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:43:03,479 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 147 [2023-11-30 04:43:03,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:43:03,531 INFO L124 PetriNetUnfolderBase]: 56/278 cut-off events. [2023-11-30 04:43:03,531 INFO L125 PetriNetUnfolderBase]: For 1358/1498 co-relation queries the response was YES. [2023-11-30 04:43:03,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1210 conditions, 278 events. 56/278 cut-off events. For 1358/1498 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1114 event pairs, 0 based on Foata normal form. 24/301 useless extension candidates. Maximal degree in co-relation 1099. Up to 109 conditions per place. [2023-11-30 04:43:03,532 INFO L140 encePairwiseOnDemand]: 145/147 looper letters, 0 selfloop transitions, 0 changer transitions 95/95 dead transitions. [2023-11-30 04:43:03,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 95 transitions, 623 flow [2023-11-30 04:43:03,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:43:03,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:43:03,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 361 transitions. [2023-11-30 04:43:03,533 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.81859410430839 [2023-11-30 04:43:03,533 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 361 transitions. [2023-11-30 04:43:03,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 361 transitions. [2023-11-30 04:43:03,533 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:43:03,534 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 361 transitions. [2023-11-30 04:43:03,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:43:03,535 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:43:03,535 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:43:03,535 INFO L307 CegarLoopForPetriNet]: 104 programPoint places, 8 predicate places. [2023-11-30 04:43:03,535 INFO L500 AbstractCegarLoop]: Abstraction has has 112 places, 95 transitions, 623 flow [2023-11-30 04:43:03,536 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) [2023-11-30 04:43:03,540 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mix007.oepc.i_BEv2_AllErrorsAtOnce [2023-11-30 04:43:03,564 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 12 remaining) [2023-11-30 04:43:03,565 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 12 remaining) [2023-11-30 04:43:03,567 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 12 remaining) [2023-11-30 04:43:03,567 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 12 remaining) [2023-11-30 04:43:03,567 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 12 remaining) [2023-11-30 04:43:03,567 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 12 remaining) [2023-11-30 04:43:03,567 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 12 remaining) [2023-11-30 04:43:03,569 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 12 remaining) [2023-11-30 04:43:03,569 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 12 remaining) [2023-11-30 04:43:03,569 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 12 remaining) [2023-11-30 04:43:03,569 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 12 remaining) [2023-11-30 04:43:03,569 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2023-11-30 04:43:03,570 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-30 04:43:03,570 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 04:43:03,572 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 04:43:03,572 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 04:43:03,578 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 04:43:03 BasicIcfg [2023-11-30 04:43:03,578 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 04:43:03,579 INFO L158 Benchmark]: Toolchain (without parser) took 4028.32ms. Allocated memory is still 685.8MB. Free memory was 638.1MB in the beginning and 579.8MB in the end (delta: 58.3MB). Peak memory consumption was 58.7MB. Max. memory is 16.0GB. [2023-11-30 04:43:03,579 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 375.4MB. Free memory is still 323.9MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 04:43:03,580 INFO L158 Benchmark]: CACSL2BoogieTranslator took 544.69ms. Allocated memory is still 685.8MB. Free memory was 638.1MB in the beginning and 613.6MB in the end (delta: 24.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-11-30 04:43:03,581 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.79ms. Allocated memory is still 685.8MB. Free memory was 613.6MB in the beginning and 611.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 04:43:03,581 INFO L158 Benchmark]: Boogie Preprocessor took 22.10ms. Allocated memory is still 685.8MB. Free memory was 611.3MB in the beginning and 609.2MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 04:43:03,581 INFO L158 Benchmark]: RCFGBuilder took 1031.08ms. Allocated memory is still 685.8MB. Free memory was 608.7MB in the beginning and 647.3MB in the end (delta: -38.6MB). Peak memory consumption was 46.8MB. Max. memory is 16.0GB. [2023-11-30 04:43:03,581 INFO L158 Benchmark]: TraceAbstraction took 2329.75ms. Allocated memory is still 685.8MB. Free memory was 646.3MB in the beginning and 579.8MB in the end (delta: 66.5MB). Peak memory consumption was 66.5MB. Max. memory is 16.0GB. [2023-11-30 04:43:03,582 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 375.4MB. Free memory is still 323.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 544.69ms. Allocated memory is still 685.8MB. Free memory was 638.1MB in the beginning and 613.6MB in the end (delta: 24.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 86.79ms. Allocated memory is still 685.8MB. Free memory was 613.6MB in the beginning and 611.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 22.10ms. Allocated memory is still 685.8MB. Free memory was 611.3MB in the beginning and 609.2MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 1031.08ms. Allocated memory is still 685.8MB. Free memory was 608.7MB in the beginning and 647.3MB in the end (delta: -38.6MB). Peak memory consumption was 46.8MB. Max. memory is 16.0GB. * TraceAbstraction took 2329.75ms. Allocated memory is still 685.8MB. Free memory was 646.3MB in the beginning and 579.8MB in the end (delta: 66.5MB). Peak memory consumption was 66.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 183 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: 2.2s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 72 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 72 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 195 IncrementalHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 60 mSDtfsCounter, 195 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=623occurred in iteration=8, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 436 NumberOfCodeBlocks, 436 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 428 ConstructedInterpolants, 0 QuantifiedInterpolants, 572 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-30 04:43:03,597 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...