/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/rfi006_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 04:46:44,010 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 04:46:44,073 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 04:46:44,090 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 04:46:44,090 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 04:46:44,090 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 04:46:44,091 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 04:46:44,091 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 04:46:44,091 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 04:46:44,091 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 04:46:44,092 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 04:46:44,092 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 04:46:44,092 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 04:46:44,094 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 04:46:44,095 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 04:46:44,095 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 04:46:44,095 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 04:46:44,096 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 04:46:44,096 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 04:46:44,096 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 04:46:44,096 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 04:46:44,096 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 04:46:44,097 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 04:46:44,097 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 04:46:44,097 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 04:46:44,097 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 04:46:44,097 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 04:46:44,097 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 04:46:44,097 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 04:46:44,098 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 04:46:44,098 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 04:46:44,098 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 04:46:44,098 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 04:46:44,099 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer base address is valid at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer to allocated memory at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check array bounds for arrays that are off heap -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check if freed pointer was valid -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2023-11-30 04:46:44,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 04:46:44,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 04:46:44,283 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 04:46:44,284 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 04:46:44,284 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 04:46:44,285 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi006_power.opt.i [2023-11-30 04:46:45,330 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 04:46:45,614 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 04:46:45,615 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi006_power.opt.i [2023-11-30 04:46:45,641 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8aa5f0c14/3de1b4c70ac049e1bc059a64b54c2a6f/FLAG30344288d [2023-11-30 04:46:45,651 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8aa5f0c14/3de1b4c70ac049e1bc059a64b54c2a6f [2023-11-30 04:46:45,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 04:46:45,653 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 04:46:45,654 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 04:46:45,654 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 04:46:45,658 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 04:46:45,659 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 04:46:45" (1/1) ... [2023-11-30 04:46:45,660 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cca78b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:45, skipping insertion in model container [2023-11-30 04:46:45,661 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 04:46:45" (1/1) ... [2023-11-30 04:46:45,701 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 04:46:46,064 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 04:46:46,075 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 04:46:46,128 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 04:46:46,156 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 04:46:46,156 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 04:46:46,161 INFO L206 MainTranslator]: Completed translation [2023-11-30 04:46:46,162 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:46 WrapperNode [2023-11-30 04:46:46,162 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 04:46:46,163 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 04:46:46,163 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 04:46:46,163 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 04:46:46,168 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:46" (1/1) ... [2023-11-30 04:46:46,194 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:46" (1/1) ... [2023-11-30 04:46:46,227 INFO L138 Inliner]: procedures = 176, calls = 76, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 183 [2023-11-30 04:46:46,227 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 04:46:46,228 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 04:46:46,228 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 04:46:46,228 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 04:46:46,236 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:46" (1/1) ... [2023-11-30 04:46:46,236 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:46" (1/1) ... [2023-11-30 04:46:46,246 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:46" (1/1) ... [2023-11-30 04:46:46,246 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:46" (1/1) ... [2023-11-30 04:46:46,253 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:46" (1/1) ... [2023-11-30 04:46:46,254 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:46" (1/1) ... [2023-11-30 04:46:46,268 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:46" (1/1) ... [2023-11-30 04:46:46,270 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:46" (1/1) ... [2023-11-30 04:46:46,272 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 04:46:46,273 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 04:46:46,273 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 04:46:46,273 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 04:46:46,274 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:46" (1/1) ... [2023-11-30 04:46:46,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 04:46:46,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 04:46:46,325 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 04:46:46,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 04:46:46,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 04:46:46,346 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-30 04:46:46,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 04:46:46,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 04:46:46,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 04:46:46,347 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-30 04:46:46,347 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-30 04:46:46,347 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-30 04:46:46,347 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-30 04:46:46,347 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-30 04:46:46,347 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-30 04:46:46,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 04:46:46,348 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-30 04:46:46,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 04:46:46,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 04:46:46,349 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 04:46:46,338 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 04:46:46,466 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 04:46:46,469 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 04:46:46,886 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 04:46:47,226 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 04:46:47,226 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-30 04:46:47,227 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 04:46:47 BoogieIcfgContainer [2023-11-30 04:46:47,228 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 04:46:47,230 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 04:46:47,230 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 04:46:47,231 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 04:46:47,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 04:46:45" (1/3) ... [2023-11-30 04:46:47,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23a5a59a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 04:46:47, skipping insertion in model container [2023-11-30 04:46:47,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:46" (2/3) ... [2023-11-30 04:46:47,233 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23a5a59a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 04:46:47, skipping insertion in model container [2023-11-30 04:46:47,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 04:46:47" (3/3) ... [2023-11-30 04:46:47,234 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi006_power.opt.i [2023-11-30 04:46:47,246 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 04:46:47,246 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2023-11-30 04:46:47,246 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 04:46:47,337 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-30 04:46:47,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 184 places, 177 transitions, 366 flow [2023-11-30 04:46:47,445 INFO L124 PetriNetUnfolderBase]: 3/174 cut-off events. [2023-11-30 04:46:47,446 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 04:46:47,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 184 conditions, 174 events. 3/174 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 280 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 118. Up to 2 conditions per place. [2023-11-30 04:46:47,451 INFO L82 GeneralOperation]: Start removeDead. Operand has 184 places, 177 transitions, 366 flow [2023-11-30 04:46:47,459 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 181 places, 174 transitions, 357 flow [2023-11-30 04:46:47,470 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 04:46:47,474 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;@a390d8f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 04:46:47,474 INFO L363 AbstractCegarLoop]: Starting to check reachability of 79 error locations. [2023-11-30 04:46:47,485 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 04:46:47,485 INFO L124 PetriNetUnfolderBase]: 0/57 cut-off events. [2023-11-30 04:46:47,485 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 04:46:47,485 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:46:47,486 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] [2023-11-30 04:46:47,487 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2023-11-30 04:46:47,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:46:47,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1944269320, now seen corresponding path program 1 times [2023-11-30 04:46:47,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:46:47,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371966760] [2023-11-30 04:46:47,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:46:47,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:46:47,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:46:47,725 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 04:46:47,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:46:47,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371966760] [2023-11-30 04:46:47,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371966760] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:46:47,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:46:47,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:46:47,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251314271] [2023-11-30 04:46:47,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:46:47,737 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:46:47,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:46:47,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:46:47,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:46:47,762 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 177 [2023-11-30 04:46:47,766 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 174 transitions, 357 flow. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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 04:46:47,766 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:46:47,766 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 177 [2023-11-30 04:46:47,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:46:49,107 INFO L124 PetriNetUnfolderBase]: 3693/7541 cut-off events. [2023-11-30 04:46:49,107 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-30 04:46:49,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12937 conditions, 7541 events. 3693/7541 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 658. Compared 64402 event pairs, 2373 based on Foata normal form. 240/4325 useless extension candidates. Maximal degree in co-relation 12862. Up to 3464 conditions per place. [2023-11-30 04:46:49,150 INFO L140 encePairwiseOnDemand]: 147/177 looper letters, 52 selfloop transitions, 2 changer transitions 0/155 dead transitions. [2023-11-30 04:46:49,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 155 transitions, 427 flow [2023-11-30 04:46:49,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:46:49,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:46:49,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 424 transitions. [2023-11-30 04:46:49,163 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7984934086629002 [2023-11-30 04:46:49,163 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 424 transitions. [2023-11-30 04:46:49,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 424 transitions. [2023-11-30 04:46:49,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:46:49,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 424 transitions. [2023-11-30 04:46:49,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 141.33333333333334) internal successors, (424), 3 states have internal predecessors, (424), 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 04:46:49,174 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 177.0) internal successors, (708), 4 states have internal predecessors, (708), 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 04:46:49,174 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 177.0) internal successors, (708), 4 states have internal predecessors, (708), 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 04:46:49,176 INFO L307 CegarLoopForPetriNet]: 181 programPoint places, -26 predicate places. [2023-11-30 04:46:49,176 INFO L500 AbstractCegarLoop]: Abstraction has has 155 places, 155 transitions, 427 flow [2023-11-30 04:46:49,177 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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 04:46:49,177 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:46:49,177 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] [2023-11-30 04:46:49,177 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 04:46:49,177 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2023-11-30 04:46:49,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:46:49,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1944269319, now seen corresponding path program 1 times [2023-11-30 04:46:49,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:46:49,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844313341] [2023-11-30 04:46:49,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:46:49,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:46:49,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:46:49,313 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 04:46:49,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:46:49,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844313341] [2023-11-30 04:46:49,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844313341] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:46:49,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:46:49,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:46:49,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761741769] [2023-11-30 04:46:49,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:46:49,315 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:46:49,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:46:49,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:46:49,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:46:49,316 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 177 [2023-11-30 04:46:49,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 155 transitions, 427 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 04:46:49,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:46:49,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 177 [2023-11-30 04:46:49,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:46:50,299 INFO L124 PetriNetUnfolderBase]: 3720/7575 cut-off events. [2023-11-30 04:46:50,300 INFO L125 PetriNetUnfolderBase]: For 584/1268 co-relation queries the response was YES. [2023-11-30 04:46:50,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18148 conditions, 7575 events. 3720/7575 cut-off events. For 584/1268 co-relation queries the response was YES. Maximal size of possible extension queue 658. Compared 64539 event pairs, 2400 based on Foata normal form. 0/4116 useless extension candidates. Maximal degree in co-relation 18067. Up to 3866 conditions per place. [2023-11-30 04:46:50,340 INFO L140 encePairwiseOnDemand]: 174/177 looper letters, 60 selfloop transitions, 2 changer transitions 0/166 dead transitions. [2023-11-30 04:46:50,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 166 transitions, 595 flow [2023-11-30 04:46:50,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:46:50,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:46:50,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 378 transitions. [2023-11-30 04:46:50,342 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.711864406779661 [2023-11-30 04:46:50,342 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 378 transitions. [2023-11-30 04:46:50,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 378 transitions. [2023-11-30 04:46:50,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:46:50,342 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 378 transitions. [2023-11-30 04:46:50,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 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 04:46:50,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 177.0) internal successors, (708), 4 states have internal predecessors, (708), 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 04:46:50,345 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 177.0) internal successors, (708), 4 states have internal predecessors, (708), 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 04:46:50,345 INFO L307 CegarLoopForPetriNet]: 181 programPoint places, -25 predicate places. [2023-11-30 04:46:50,345 INFO L500 AbstractCegarLoop]: Abstraction has has 156 places, 166 transitions, 595 flow [2023-11-30 04:46:50,346 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 04:46:50,346 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:46:50,346 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] [2023-11-30 04:46:50,346 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 04:46:50,346 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2023-11-30 04:46:50,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:46:50,347 INFO L85 PathProgramCache]: Analyzing trace with hash 202569456, now seen corresponding path program 1 times [2023-11-30 04:46:50,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:46:50,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615870611] [2023-11-30 04:46:50,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:46:50,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:46:50,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:46:50,504 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 04:46:50,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:46:50,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615870611] [2023-11-30 04:46:50,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615870611] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:46:50,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:46:50,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 04:46:50,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204293026] [2023-11-30 04:46:50,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:46:50,509 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 04:46:50,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:46:50,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 04:46:50,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-30 04:46:50,512 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 177 [2023-11-30 04:46:50,513 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 166 transitions, 595 flow. Second operand has 6 states, 6 states have (on average 105.83333333333333) internal successors, (635), 6 states have internal predecessors, (635), 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 04:46:50,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:46:50,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 177 [2023-11-30 04:46:50,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:46:51,761 INFO L124 PetriNetUnfolderBase]: 2233/5689 cut-off events. [2023-11-30 04:46:51,761 INFO L125 PetriNetUnfolderBase]: For 1140/1666 co-relation queries the response was YES. [2023-11-30 04:46:51,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15742 conditions, 5689 events. 2233/5689 cut-off events. For 1140/1666 co-relation queries the response was YES. Maximal size of possible extension queue 435. Compared 53845 event pairs, 719 based on Foata normal form. 0/3989 useless extension candidates. Maximal degree in co-relation 15650. Up to 2391 conditions per place. [2023-11-30 04:46:51,792 INFO L140 encePairwiseOnDemand]: 162/177 looper letters, 68 selfloop transitions, 13 changer transitions 0/180 dead transitions. [2023-11-30 04:46:51,792 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 180 transitions, 837 flow [2023-11-30 04:46:51,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 04:46:51,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 04:46:51,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 823 transitions. [2023-11-30 04:46:51,794 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6642453591606134 [2023-11-30 04:46:51,794 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 823 transitions. [2023-11-30 04:46:51,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 823 transitions. [2023-11-30 04:46:51,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:46:51,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 823 transitions. [2023-11-30 04:46:51,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 117.57142857142857) internal successors, (823), 7 states have internal predecessors, (823), 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 04:46:51,797 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 177.0) internal successors, (1416), 8 states have internal predecessors, (1416), 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 04:46:51,798 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 177.0) internal successors, (1416), 8 states have internal predecessors, (1416), 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 04:46:51,799 INFO L307 CegarLoopForPetriNet]: 181 programPoint places, -21 predicate places. [2023-11-30 04:46:51,799 INFO L500 AbstractCegarLoop]: Abstraction has has 160 places, 180 transitions, 837 flow [2023-11-30 04:46:51,799 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 105.83333333333333) internal successors, (635), 6 states have internal predecessors, (635), 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 04:46:51,799 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:46:51,799 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] [2023-11-30 04:46:51,799 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 04:46:51,799 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2023-11-30 04:46:51,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:46:51,800 INFO L85 PathProgramCache]: Analyzing trace with hash 202569457, now seen corresponding path program 1 times [2023-11-30 04:46:51,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:46:51,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578760952] [2023-11-30 04:46:51,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:46:51,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:46:51,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:46:51,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 04:46:51,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:46:51,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578760952] [2023-11-30 04:46:51,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578760952] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:46:51,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:46:51,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-30 04:46:51,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461817061] [2023-11-30 04:46:51,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:46:51,943 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 04:46:51,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:46:51,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 04:46:51,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-30 04:46:51,944 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 177 [2023-11-30 04:46:51,945 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 180 transitions, 837 flow. Second operand has 5 states, 5 states have (on average 113.8) internal successors, (569), 5 states have internal predecessors, (569), 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 04:46:51,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:46:51,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 177 [2023-11-30 04:46:51,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:46:52,229 INFO L124 PetriNetUnfolderBase]: 652/2128 cut-off events. [2023-11-30 04:46:52,229 INFO L125 PetriNetUnfolderBase]: For 917/1075 co-relation queries the response was YES. [2023-11-30 04:46:52,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6147 conditions, 2128 events. 652/2128 cut-off events. For 917/1075 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 17562 event pairs, 129 based on Foata normal form. 0/1835 useless extension candidates. Maximal degree in co-relation 6046. Up to 914 conditions per place. [2023-11-30 04:46:52,240 INFO L140 encePairwiseOnDemand]: 169/177 looper letters, 46 selfloop transitions, 2 changer transitions 0/158 dead transitions. [2023-11-30 04:46:52,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 158 transitions, 757 flow [2023-11-30 04:46:52,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 04:46:52,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 04:46:52,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 482 transitions. [2023-11-30 04:46:52,241 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6807909604519774 [2023-11-30 04:46:52,241 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 482 transitions. [2023-11-30 04:46:52,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 482 transitions. [2023-11-30 04:46:52,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:46:52,242 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 482 transitions. [2023-11-30 04:46:52,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 120.5) internal successors, (482), 4 states have internal predecessors, (482), 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 04:46:52,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 177.0) internal successors, (885), 5 states have internal predecessors, (885), 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 04:46:52,244 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 177.0) internal successors, (885), 5 states have internal predecessors, (885), 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 04:46:52,244 INFO L307 CegarLoopForPetriNet]: 181 programPoint places, -24 predicate places. [2023-11-30 04:46:52,244 INFO L500 AbstractCegarLoop]: Abstraction has has 157 places, 158 transitions, 757 flow [2023-11-30 04:46:52,245 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 113.8) internal successors, (569), 5 states have internal predecessors, (569), 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 04:46:52,245 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:46:52,245 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] [2023-11-30 04:46:52,245 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 04:46:52,245 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2023-11-30 04:46:52,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:46:52,246 INFO L85 PathProgramCache]: Analyzing trace with hash 973921060, now seen corresponding path program 1 times [2023-11-30 04:46:52,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:46:52,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872869349] [2023-11-30 04:46:52,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:46:52,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:46:52,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:46:52,293 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 04:46:52,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:46:52,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872869349] [2023-11-30 04:46:52,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872869349] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:46:52,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:46:52,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:46:52,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769024998] [2023-11-30 04:46:52,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:46:52,294 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:46:52,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:46:52,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:46:52,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:46:52,295 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 177 [2023-11-30 04:46:52,295 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 158 transitions, 757 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 04:46:52,295 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:46:52,295 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 177 [2023-11-30 04:46:52,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:46:52,685 INFO L124 PetriNetUnfolderBase]: 771/2256 cut-off events. [2023-11-30 04:46:52,685 INFO L125 PetriNetUnfolderBase]: For 2303/2513 co-relation queries the response was YES. [2023-11-30 04:46:52,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7893 conditions, 2256 events. 771/2256 cut-off events. For 2303/2513 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 18309 event pairs, 85 based on Foata normal form. 2/1920 useless extension candidates. Maximal degree in co-relation 7784. Up to 1034 conditions per place. [2023-11-30 04:46:52,697 INFO L140 encePairwiseOnDemand]: 174/177 looper letters, 63 selfloop transitions, 2 changer transitions 0/170 dead transitions. [2023-11-30 04:46:52,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 170 transitions, 1011 flow [2023-11-30 04:46:52,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:46:52,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:46:52,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 366 transitions. [2023-11-30 04:46:52,698 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6892655367231638 [2023-11-30 04:46:52,698 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 366 transitions. [2023-11-30 04:46:52,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 366 transitions. [2023-11-30 04:46:52,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:46:52,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 366 transitions. [2023-11-30 04:46:52,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 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 04:46:52,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 177.0) internal successors, (708), 4 states have internal predecessors, (708), 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 04:46:52,701 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 177.0) internal successors, (708), 4 states have internal predecessors, (708), 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 04:46:52,702 INFO L307 CegarLoopForPetriNet]: 181 programPoint places, -23 predicate places. [2023-11-30 04:46:52,703 INFO L500 AbstractCegarLoop]: Abstraction has has 158 places, 170 transitions, 1011 flow [2023-11-30 04:46:52,703 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 04:46:52,703 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:46:52,703 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] [2023-11-30 04:46:52,703 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-30 04:46:52,704 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2023-11-30 04:46:52,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:46:52,706 INFO L85 PathProgramCache]: Analyzing trace with hash 973921059, now seen corresponding path program 1 times [2023-11-30 04:46:52,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:46:52,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287157832] [2023-11-30 04:46:52,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:46:52,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:46:52,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:46:52,745 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 04:46:52,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:46:52,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287157832] [2023-11-30 04:46:52,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287157832] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:46:52,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:46:52,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:46:52,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689106384] [2023-11-30 04:46:52,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:46:52,747 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:46:52,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:46:52,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:46:52,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:46:52,748 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 177 [2023-11-30 04:46:52,749 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 170 transitions, 1011 flow. Second operand has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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 04:46:52,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:46:52,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 177 [2023-11-30 04:46:52,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:46:53,090 INFO L124 PetriNetUnfolderBase]: 770/2167 cut-off events. [2023-11-30 04:46:53,090 INFO L125 PetriNetUnfolderBase]: For 3045/3355 co-relation queries the response was YES. [2023-11-30 04:46:53,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9023 conditions, 2167 events. 770/2167 cut-off events. For 3045/3355 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 17381 event pairs, 85 based on Foata normal form. 2/1831 useless extension candidates. Maximal degree in co-relation 8905. Up to 1038 conditions per place. [2023-11-30 04:46:53,104 INFO L140 encePairwiseOnDemand]: 174/177 looper letters, 66 selfloop transitions, 2 changer transitions 0/169 dead transitions. [2023-11-30 04:46:53,104 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 169 transitions, 1139 flow [2023-11-30 04:46:53,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:46:53,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:46:53,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 355 transitions. [2023-11-30 04:46:53,105 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6685499058380414 [2023-11-30 04:46:53,105 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 355 transitions. [2023-11-30 04:46:53,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 355 transitions. [2023-11-30 04:46:53,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:46:53,105 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 355 transitions. [2023-11-30 04:46:53,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 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 04:46:53,108 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 177.0) internal successors, (708), 4 states have internal predecessors, (708), 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 04:46:53,108 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 177.0) internal successors, (708), 4 states have internal predecessors, (708), 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 04:46:53,111 INFO L307 CegarLoopForPetriNet]: 181 programPoint places, -22 predicate places. [2023-11-30 04:46:53,111 INFO L500 AbstractCegarLoop]: Abstraction has has 159 places, 169 transitions, 1139 flow [2023-11-30 04:46:53,111 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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 04:46:53,111 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:46:53,111 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, 1, 1, 1, 1, 1, 1] [2023-11-30 04:46:53,111 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-30 04:46:53,111 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2023-11-30 04:46:53,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:46:53,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1254289862, now seen corresponding path program 1 times [2023-11-30 04:46:53,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:46:53,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741765521] [2023-11-30 04:46:53,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:46:53,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:46:53,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:46:53,183 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 04:46:53,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:46:53,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741765521] [2023-11-30 04:46:53,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741765521] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:46:53,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:46:53,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:46:53,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661245998] [2023-11-30 04:46:53,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:46:53,184 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:46:53,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:46:53,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:46:53,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:46:53,184 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 177 [2023-11-30 04:46:53,185 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 169 transitions, 1139 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 04:46:53,185 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:46:53,185 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 177 [2023-11-30 04:46:53,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:46:53,556 INFO L124 PetriNetUnfolderBase]: 886/2337 cut-off events. [2023-11-30 04:46:53,556 INFO L125 PetriNetUnfolderBase]: For 6136/6280 co-relation queries the response was YES. [2023-11-30 04:46:53,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11136 conditions, 2337 events. 886/2337 cut-off events. For 6136/6280 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 18741 event pairs, 47 based on Foata normal form. 4/1957 useless extension candidates. Maximal degree in co-relation 11010. Up to 1158 conditions per place. [2023-11-30 04:46:53,572 INFO L140 encePairwiseOnDemand]: 174/177 looper letters, 76 selfloop transitions, 2 changer transitions 0/182 dead transitions. [2023-11-30 04:46:53,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 182 transitions, 1483 flow [2023-11-30 04:46:53,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:46:53,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:46:53,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 365 transitions. [2023-11-30 04:46:53,573 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.687382297551789 [2023-11-30 04:46:53,573 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 365 transitions. [2023-11-30 04:46:53,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 365 transitions. [2023-11-30 04:46:53,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:46:53,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 365 transitions. [2023-11-30 04:46:53,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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 04:46:53,575 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 177.0) internal successors, (708), 4 states have internal predecessors, (708), 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 04:46:53,575 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 177.0) internal successors, (708), 4 states have internal predecessors, (708), 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 04:46:53,575 INFO L307 CegarLoopForPetriNet]: 181 programPoint places, -21 predicate places. [2023-11-30 04:46:53,575 INFO L500 AbstractCegarLoop]: Abstraction has has 160 places, 182 transitions, 1483 flow [2023-11-30 04:46:53,576 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 04:46:53,576 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:46:53,576 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, 1, 1, 1, 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 04:46:53,576 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-30 04:46:53,576 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2023-11-30 04:46:53,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:46:53,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1254289863, now seen corresponding path program 1 times [2023-11-30 04:46:53,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:46:53,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954522454] [2023-11-30 04:46:53,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:46:53,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:46:53,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:46:53,606 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 04:46:53,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:46:53,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954522454] [2023-11-30 04:46:53,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954522454] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:46:53,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:46:53,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:46:53,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782465807] [2023-11-30 04:46:53,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:46:53,607 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:46:53,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:46:53,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:46:53,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:46:53,608 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 177 [2023-11-30 04:46:53,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 182 transitions, 1483 flow. Second operand has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 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 04:46:53,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:46:53,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 177 [2023-11-30 04:46:53,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:46:53,963 INFO L124 PetriNetUnfolderBase]: 882/2321 cut-off events. [2023-11-30 04:46:53,963 INFO L125 PetriNetUnfolderBase]: For 7908/8076 co-relation queries the response was YES. [2023-11-30 04:46:53,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12414 conditions, 2321 events. 882/2321 cut-off events. For 7908/8076 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 18693 event pairs, 47 based on Foata normal form. 4/1941 useless extension candidates. Maximal degree in co-relation 12279. Up to 1170 conditions per place. [2023-11-30 04:46:53,980 INFO L140 encePairwiseOnDemand]: 174/177 looper letters, 79 selfloop transitions, 2 changer transitions 0/181 dead transitions. [2023-11-30 04:46:53,981 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 181 transitions, 1635 flow [2023-11-30 04:46:53,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:46:53,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:46:53,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 354 transitions. [2023-11-30 04:46:53,982 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2023-11-30 04:46:53,982 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 354 transitions. [2023-11-30 04:46:53,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 354 transitions. [2023-11-30 04:46:53,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:46:53,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 354 transitions. [2023-11-30 04:46:53,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:46:53,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 177.0) internal successors, (708), 4 states have internal predecessors, (708), 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 04:46:53,983 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 177.0) internal successors, (708), 4 states have internal predecessors, (708), 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 04:46:53,984 INFO L307 CegarLoopForPetriNet]: 181 programPoint places, -20 predicate places. [2023-11-30 04:46:53,984 INFO L500 AbstractCegarLoop]: Abstraction has has 161 places, 181 transitions, 1635 flow [2023-11-30 04:46:53,984 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 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 04:46:53,984 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:46:53,984 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 04:46:53,984 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-30 04:46:53,984 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2023-11-30 04:46:53,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:46:53,985 INFO L85 PathProgramCache]: Analyzing trace with hash -947804852, now seen corresponding path program 1 times [2023-11-30 04:46:53,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:46:53,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726481492] [2023-11-30 04:46:53,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:46:53,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:46:53,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:46:54,051 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 04:46:54,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:46:54,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726481492] [2023-11-30 04:46:54,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726481492] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:46:54,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:46:54,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:46:54,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697223424] [2023-11-30 04:46:54,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:46:54,052 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:46:54,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:46:54,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:46:54,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:46:54,053 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 177 [2023-11-30 04:46:54,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 181 transitions, 1635 flow. Second operand has 3 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 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 04:46:54,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:46:54,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 177 [2023-11-30 04:46:54,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:46:54,490 INFO L124 PetriNetUnfolderBase]: 856/2305 cut-off events. [2023-11-30 04:46:54,490 INFO L125 PetriNetUnfolderBase]: For 9944/10136 co-relation queries the response was YES. [2023-11-30 04:46:54,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13068 conditions, 2305 events. 856/2305 cut-off events. For 9944/10136 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 18766 event pairs, 39 based on Foata normal form. 0/1933 useless extension candidates. Maximal degree in co-relation 12930. Up to 1170 conditions per place. [2023-11-30 04:46:54,509 INFO L140 encePairwiseOnDemand]: 173/177 looper letters, 95 selfloop transitions, 12 changer transitions 0/225 dead transitions. [2023-11-30 04:46:54,509 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 225 transitions, 2647 flow [2023-11-30 04:46:54,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:46:54,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:46:54,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 403 transitions. [2023-11-30 04:46:54,511 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7589453860640302 [2023-11-30 04:46:54,511 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 403 transitions. [2023-11-30 04:46:54,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 403 transitions. [2023-11-30 04:46:54,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:46:54,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 403 transitions. [2023-11-30 04:46:54,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 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 04:46:54,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 177.0) internal successors, (708), 4 states have internal predecessors, (708), 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 04:46:54,513 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 177.0) internal successors, (708), 4 states have internal predecessors, (708), 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 04:46:54,513 INFO L307 CegarLoopForPetriNet]: 181 programPoint places, -18 predicate places. [2023-11-30 04:46:54,513 INFO L500 AbstractCegarLoop]: Abstraction has has 163 places, 225 transitions, 2647 flow [2023-11-30 04:46:54,513 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 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 04:46:54,513 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:46:54,514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 04:46:54,514 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-30 04:46:54,514 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2023-11-30 04:46:54,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:46:54,514 INFO L85 PathProgramCache]: Analyzing trace with hash 806694939, now seen corresponding path program 1 times [2023-11-30 04:46:54,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:46:54,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219562682] [2023-11-30 04:46:54,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:46:54,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:46:54,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:46:54,598 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 04:46:54,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:46:54,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219562682] [2023-11-30 04:46:54,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219562682] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:46:54,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:46:54,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-30 04:46:54,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125367654] [2023-11-30 04:46:54,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:46:54,602 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 04:46:54,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:46:54,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 04:46:54,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-30 04:46:54,603 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 177 [2023-11-30 04:46:54,604 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 225 transitions, 2647 flow. Second operand has 5 states, 5 states have (on average 110.8) internal successors, (554), 5 states have internal predecessors, (554), 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 04:46:54,604 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:46:54,604 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 177 [2023-11-30 04:46:54,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:46:55,087 INFO L124 PetriNetUnfolderBase]: 849/2252 cut-off events. [2023-11-30 04:46:55,087 INFO L125 PetriNetUnfolderBase]: For 12764/12980 co-relation queries the response was YES. [2023-11-30 04:46:55,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14039 conditions, 2252 events. 849/2252 cut-off events. For 12764/12980 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 17966 event pairs, 35 based on Foata normal form. 0/1886 useless extension candidates. Maximal degree in co-relation 13890. Up to 1170 conditions per place. [2023-11-30 04:46:55,108 INFO L140 encePairwiseOnDemand]: 170/177 looper letters, 110 selfloop transitions, 22 changer transitions 0/233 dead transitions. [2023-11-30 04:46:55,108 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 233 transitions, 3023 flow [2023-11-30 04:46:55,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 04:46:55,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 04:46:55,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 481 transitions. [2023-11-30 04:46:55,110 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6793785310734464 [2023-11-30 04:46:55,110 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 481 transitions. [2023-11-30 04:46:55,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 481 transitions. [2023-11-30 04:46:55,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:46:55,110 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 481 transitions. [2023-11-30 04:46:55,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 120.25) internal successors, (481), 4 states have internal predecessors, (481), 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 04:46:55,112 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 177.0) internal successors, (885), 5 states have internal predecessors, (885), 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 04:46:55,112 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 177.0) internal successors, (885), 5 states have internal predecessors, (885), 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 04:46:55,112 INFO L307 CegarLoopForPetriNet]: 181 programPoint places, -16 predicate places. [2023-11-30 04:46:55,112 INFO L500 AbstractCegarLoop]: Abstraction has has 165 places, 233 transitions, 3023 flow [2023-11-30 04:46:55,113 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 110.8) internal successors, (554), 5 states have internal predecessors, (554), 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 04:46:55,113 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:46:55,113 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 04:46:55,113 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-30 04:46:55,113 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2023-11-30 04:46:55,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:46:55,113 INFO L85 PathProgramCache]: Analyzing trace with hash 806694940, now seen corresponding path program 1 times [2023-11-30 04:46:55,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:46:55,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280041067] [2023-11-30 04:46:55,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:46:55,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:46:55,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:46:55,315 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 04:46:55,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:46:55,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280041067] [2023-11-30 04:46:55,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280041067] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:46:55,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:46:55,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 04:46:55,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567766767] [2023-11-30 04:46:55,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:46:55,316 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 04:46:55,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:46:55,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 04:46:55,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-30 04:46:55,317 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 177 [2023-11-30 04:46:55,318 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 233 transitions, 3023 flow. Second operand has 6 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 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 04:46:55,318 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:46:55,318 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 177 [2023-11-30 04:46:55,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:46:55,839 INFO L124 PetriNetUnfolderBase]: 842/2279 cut-off events. [2023-11-30 04:46:55,839 INFO L125 PetriNetUnfolderBase]: For 15410/15650 co-relation queries the response was YES. [2023-11-30 04:46:55,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14903 conditions, 2279 events. 842/2279 cut-off events. For 15410/15650 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 18540 event pairs, 31 based on Foata normal form. 0/1919 useless extension candidates. Maximal degree in co-relation 14744. Up to 1170 conditions per place. [2023-11-30 04:46:55,862 INFO L140 encePairwiseOnDemand]: 174/177 looper letters, 108 selfloop transitions, 12 changer transitions 0/232 dead transitions. [2023-11-30 04:46:55,862 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 232 transitions, 3241 flow [2023-11-30 04:46:55,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 04:46:55,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 04:46:55,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 484 transitions. [2023-11-30 04:46:55,863 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6836158192090396 [2023-11-30 04:46:55,863 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 484 transitions. [2023-11-30 04:46:55,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 484 transitions. [2023-11-30 04:46:55,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:46:55,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 484 transitions. [2023-11-30 04:46:55,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 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 04:46:55,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 177.0) internal successors, (885), 5 states have internal predecessors, (885), 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 04:46:55,868 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 177.0) internal successors, (885), 5 states have internal predecessors, (885), 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 04:46:55,868 INFO L307 CegarLoopForPetriNet]: 181 programPoint places, -14 predicate places. [2023-11-30 04:46:55,868 INFO L500 AbstractCegarLoop]: Abstraction has has 167 places, 232 transitions, 3241 flow [2023-11-30 04:46:55,869 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 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 04:46:55,869 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:46:55,869 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, 1, 1, 1, 1, 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 04:46:55,869 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-30 04:46:55,869 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2023-11-30 04:46:55,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:46:55,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1244406294, now seen corresponding path program 1 times [2023-11-30 04:46:55,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:46:55,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377826703] [2023-11-30 04:46:55,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:46:55,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:46:55,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:46:56,004 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 04:46:56,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:46:56,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377826703] [2023-11-30 04:46:56,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377826703] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:46:56,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:46:56,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-30 04:46:56,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32507980] [2023-11-30 04:46:56,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:46:56,006 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-30 04:46:56,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:46:56,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-30 04:46:56,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-30 04:46:56,006 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 177 [2023-11-30 04:46:56,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 232 transitions, 3241 flow. Second operand has 7 states, 7 states have (on average 106.85714285714286) internal successors, (748), 7 states have internal predecessors, (748), 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 04:46:56,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:46:56,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 177 [2023-11-30 04:46:56,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:46:56,461 INFO L124 PetriNetUnfolderBase]: 670/1871 cut-off events. [2023-11-30 04:46:56,461 INFO L125 PetriNetUnfolderBase]: For 16350/16614 co-relation queries the response was YES. [2023-11-30 04:46:56,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13135 conditions, 1871 events. 670/1871 cut-off events. For 16350/16614 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 14372 event pairs, 31 based on Foata normal form. 0/1607 useless extension candidates. Maximal degree in co-relation 12965. Up to 946 conditions per place. [2023-11-30 04:46:56,474 INFO L140 encePairwiseOnDemand]: 164/177 looper letters, 116 selfloop transitions, 26 changer transitions 0/239 dead transitions. [2023-11-30 04:46:56,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 239 transitions, 3693 flow [2023-11-30 04:46:56,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 04:46:56,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 04:46:56,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 677 transitions. [2023-11-30 04:46:56,476 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6374764595103578 [2023-11-30 04:46:56,476 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 677 transitions. [2023-11-30 04:46:56,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 677 transitions. [2023-11-30 04:46:56,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:46:56,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 677 transitions. [2023-11-30 04:46:56,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 112.83333333333333) internal successors, (677), 6 states have internal predecessors, (677), 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 04:46:56,479 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 177.0) internal successors, (1239), 7 states have internal predecessors, (1239), 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 04:46:56,479 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 177.0) internal successors, (1239), 7 states have internal predecessors, (1239), 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 04:46:56,479 INFO L307 CegarLoopForPetriNet]: 181 programPoint places, -9 predicate places. [2023-11-30 04:46:56,479 INFO L500 AbstractCegarLoop]: Abstraction has has 172 places, 239 transitions, 3693 flow [2023-11-30 04:46:56,480 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 106.85714285714286) internal successors, (748), 7 states have internal predecessors, (748), 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 04:46:56,480 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:46:56,480 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, 1, 1, 1, 1, 1, 1, 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 04:46:56,480 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-30 04:46:56,480 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2023-11-30 04:46:56,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:46:56,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1941749707, now seen corresponding path program 1 times [2023-11-30 04:46:56,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:46:56,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888949735] [2023-11-30 04:46:56,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:46:56,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:46:56,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:46:56,820 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 04:46:56,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:46:56,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888949735] [2023-11-30 04:46:56,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888949735] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:46:56,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:46:56,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-30 04:46:56,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119141817] [2023-11-30 04:46:56,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:46:56,821 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-30 04:46:56,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:46:56,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-30 04:46:56,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-30 04:46:56,823 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 177 [2023-11-30 04:46:56,823 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 239 transitions, 3693 flow. Second operand has 9 states, 9 states have (on average 104.44444444444444) internal successors, (940), 9 states have internal predecessors, (940), 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 04:46:56,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:46:56,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 177 [2023-11-30 04:46:56,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:46:57,214 INFO L124 PetriNetUnfolderBase]: 498/1518 cut-off events. [2023-11-30 04:46:57,214 INFO L125 PetriNetUnfolderBase]: For 14907/15195 co-relation queries the response was YES. [2023-11-30 04:46:57,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11048 conditions, 1518 events. 498/1518 cut-off events. For 14907/15195 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 10963 event pairs, 31 based on Foata normal form. 0/1350 useless extension candidates. Maximal degree in co-relation 10867. Up to 722 conditions per place. [2023-11-30 04:46:57,227 INFO L140 encePairwiseOnDemand]: 163/177 looper letters, 128 selfloop transitions, 22 changer transitions 0/246 dead transitions. [2023-11-30 04:46:57,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 246 transitions, 4175 flow [2023-11-30 04:46:57,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-30 04:46:57,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-30 04:46:57,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 874 transitions. [2023-11-30 04:46:57,232 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.617231638418079 [2023-11-30 04:46:57,232 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 874 transitions. [2023-11-30 04:46:57,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 874 transitions. [2023-11-30 04:46:57,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:46:57,232 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 874 transitions. [2023-11-30 04:46:57,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 109.25) internal successors, (874), 8 states have internal predecessors, (874), 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 04:46:57,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 177.0) internal successors, (1593), 9 states have internal predecessors, (1593), 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 04:46:57,237 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 177.0) internal successors, (1593), 9 states have internal predecessors, (1593), 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 04:46:57,238 INFO L307 CegarLoopForPetriNet]: 181 programPoint places, -2 predicate places. [2023-11-30 04:46:57,238 INFO L500 AbstractCegarLoop]: Abstraction has has 179 places, 246 transitions, 4175 flow [2023-11-30 04:46:57,239 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 104.44444444444444) internal successors, (940), 9 states have internal predecessors, (940), 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 04:46:57,239 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:46:57,239 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:46:57,239 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-30 04:46:57,239 INFO L425 AbstractCegarLoop]: === Iteration 14 === Targeting P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2023-11-30 04:46:57,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:46:57,239 INFO L85 PathProgramCache]: Analyzing trace with hash -2007372188, now seen corresponding path program 1 times [2023-11-30 04:46:57,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:46:57,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246041221] [2023-11-30 04:46:57,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:46:57,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:46:57,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:46:57,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 04:46:57,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:46:57,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246041221] [2023-11-30 04:46:57,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246041221] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:46:57,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:46:57,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-30 04:46:57,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108645833] [2023-11-30 04:46:57,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:46:57,621 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-30 04:46:57,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:46:57,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-30 04:46:57,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-11-30 04:46:57,622 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 177 [2023-11-30 04:46:57,623 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 246 transitions, 4175 flow. Second operand has 11 states, 11 states have (on average 102.18181818181819) internal successors, (1124), 11 states have internal predecessors, (1124), 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 04:46:57,623 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:46:57,623 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 177 [2023-11-30 04:46:57,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:46:57,920 INFO L124 PetriNetUnfolderBase]: 292/983 cut-off events. [2023-11-30 04:46:57,920 INFO L125 PetriNetUnfolderBase]: For 10697/11009 co-relation queries the response was YES. [2023-11-30 04:46:57,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7097 conditions, 983 events. 292/983 cut-off events. For 10697/11009 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 5871 event pairs, 16 based on Foata normal form. 0/959 useless extension candidates. Maximal degree in co-relation 6905. Up to 360 conditions per place. [2023-11-30 04:46:57,925 INFO L140 encePairwiseOnDemand]: 165/177 looper letters, 0 selfloop transitions, 0 changer transitions 232/232 dead transitions. [2023-11-30 04:46:57,925 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 232 transitions, 4057 flow [2023-11-30 04:46:57,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-30 04:46:57,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-30 04:46:57,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 952 transitions. [2023-11-30 04:46:57,927 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5976145637162587 [2023-11-30 04:46:57,927 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 952 transitions. [2023-11-30 04:46:57,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 952 transitions. [2023-11-30 04:46:57,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:46:57,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 952 transitions. [2023-11-30 04:46:57,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 105.77777777777777) internal successors, (952), 9 states have internal predecessors, (952), 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 04:46:57,931 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 177.0) internal successors, (1770), 10 states have internal predecessors, (1770), 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 04:46:57,931 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 177.0) internal successors, (1770), 10 states have internal predecessors, (1770), 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 04:46:57,931 INFO L307 CegarLoopForPetriNet]: 181 programPoint places, 2 predicate places. [2023-11-30 04:46:57,932 INFO L500 AbstractCegarLoop]: Abstraction has has 183 places, 232 transitions, 4057 flow [2023-11-30 04:46:57,932 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 102.18181818181819) internal successors, (1124), 11 states have internal predecessors, (1124), 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 04:46:57,941 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/rfi006_power.opt.i_BEv2_AllErrorsAtOnce [2023-11-30 04:46:57,985 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (78 of 79 remaining) [2023-11-30 04:46:57,986 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (77 of 79 remaining) [2023-11-30 04:46:57,986 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (76 of 79 remaining) [2023-11-30 04:46:57,986 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (75 of 79 remaining) [2023-11-30 04:46:57,986 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (74 of 79 remaining) [2023-11-30 04:46:57,987 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (73 of 79 remaining) [2023-11-30 04:46:57,987 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (72 of 79 remaining) [2023-11-30 04:46:57,987 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (71 of 79 remaining) [2023-11-30 04:46:57,987 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (70 of 79 remaining) [2023-11-30 04:46:57,987 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (69 of 79 remaining) [2023-11-30 04:46:57,987 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (68 of 79 remaining) [2023-11-30 04:46:57,987 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (67 of 79 remaining) [2023-11-30 04:46:57,987 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (66 of 79 remaining) [2023-11-30 04:46:57,987 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (65 of 79 remaining) [2023-11-30 04:46:57,987 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (64 of 79 remaining) [2023-11-30 04:46:57,987 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (63 of 79 remaining) [2023-11-30 04:46:57,987 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (62 of 79 remaining) [2023-11-30 04:46:57,987 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (61 of 79 remaining) [2023-11-30 04:46:57,987 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (60 of 79 remaining) [2023-11-30 04:46:57,988 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (59 of 79 remaining) [2023-11-30 04:46:57,988 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 79 remaining) [2023-11-30 04:46:57,988 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 79 remaining) [2023-11-30 04:46:57,988 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (56 of 79 remaining) [2023-11-30 04:46:57,988 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (55 of 79 remaining) [2023-11-30 04:46:57,988 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (54 of 79 remaining) [2023-11-30 04:46:57,988 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 79 remaining) [2023-11-30 04:46:57,988 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 79 remaining) [2023-11-30 04:46:57,988 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 79 remaining) [2023-11-30 04:46:57,988 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 79 remaining) [2023-11-30 04:46:57,988 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 79 remaining) [2023-11-30 04:46:57,988 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 79 remaining) [2023-11-30 04:46:57,988 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 79 remaining) [2023-11-30 04:46:57,988 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 79 remaining) [2023-11-30 04:46:57,989 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 79 remaining) [2023-11-30 04:46:57,989 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 79 remaining) [2023-11-30 04:46:57,989 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 79 remaining) [2023-11-30 04:46:57,989 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 79 remaining) [2023-11-30 04:46:57,989 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 79 remaining) [2023-11-30 04:46:57,989 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 79 remaining) [2023-11-30 04:46:57,989 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 79 remaining) [2023-11-30 04:46:57,989 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 79 remaining) [2023-11-30 04:46:57,989 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 79 remaining) [2023-11-30 04:46:57,989 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 79 remaining) [2023-11-30 04:46:57,989 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 79 remaining) [2023-11-30 04:46:57,989 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 79 remaining) [2023-11-30 04:46:57,989 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 79 remaining) [2023-11-30 04:46:57,990 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 79 remaining) [2023-11-30 04:46:57,990 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 79 remaining) [2023-11-30 04:46:57,990 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 79 remaining) [2023-11-30 04:46:57,990 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 79 remaining) [2023-11-30 04:46:57,990 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 79 remaining) [2023-11-30 04:46:57,990 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 79 remaining) [2023-11-30 04:46:57,990 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 79 remaining) [2023-11-30 04:46:57,990 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 79 remaining) [2023-11-30 04:46:57,990 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 79 remaining) [2023-11-30 04:46:57,990 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 79 remaining) [2023-11-30 04:46:57,990 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 79 remaining) [2023-11-30 04:46:57,990 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 79 remaining) [2023-11-30 04:46:57,990 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 79 remaining) [2023-11-30 04:46:57,990 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 79 remaining) [2023-11-30 04:46:57,991 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 79 remaining) [2023-11-30 04:46:57,991 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 79 remaining) [2023-11-30 04:46:57,991 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 79 remaining) [2023-11-30 04:46:57,991 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 79 remaining) [2023-11-30 04:46:57,991 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 79 remaining) [2023-11-30 04:46:57,991 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 79 remaining) [2023-11-30 04:46:57,991 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 79 remaining) [2023-11-30 04:46:57,991 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 79 remaining) [2023-11-30 04:46:57,991 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 79 remaining) [2023-11-30 04:46:57,991 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 79 remaining) [2023-11-30 04:46:57,991 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 79 remaining) [2023-11-30 04:46:57,991 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 79 remaining) [2023-11-30 04:46:57,991 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 79 remaining) [2023-11-30 04:46:57,991 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 79 remaining) [2023-11-30 04:46:57,992 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 79 remaining) [2023-11-30 04:46:57,992 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 79 remaining) [2023-11-30 04:46:57,992 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 79 remaining) [2023-11-30 04:46:57,992 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 79 remaining) [2023-11-30 04:46:57,992 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 79 remaining) [2023-11-30 04:46:57,992 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-30 04:46:57,992 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 04:46:57,996 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 04:46:57,996 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 04:46:58,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 04:46:58 BasicIcfg [2023-11-30 04:46:58,002 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 04:46:58,003 INFO L158 Benchmark]: Toolchain (without parser) took 12349.67ms. Allocated memory was 488.6MB in the beginning and 2.3GB in the end (delta: 1.8GB). Free memory was 446.9MB in the beginning and 1.4GB in the end (delta: -906.1MB). Peak memory consumption was 898.5MB. Max. memory is 16.0GB. [2023-11-30 04:46:58,003 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 339.7MB. Free memory is still 295.8MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 04:46:58,003 INFO L158 Benchmark]: CACSL2BoogieTranslator took 508.08ms. Allocated memory is still 488.6MB. Free memory was 446.9MB in the beginning and 421.7MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-11-30 04:46:58,003 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.93ms. Allocated memory is still 488.6MB. Free memory was 421.7MB in the beginning and 419.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-11-30 04:46:58,003 INFO L158 Benchmark]: Boogie Preprocessor took 44.52ms. Allocated memory is still 488.6MB. Free memory was 419.0MB in the beginning and 416.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 04:46:58,004 INFO L158 Benchmark]: RCFGBuilder took 954.69ms. Allocated memory is still 488.6MB. Free memory was 416.9MB in the beginning and 372.5MB in the end (delta: 44.4MB). Peak memory consumption was 75.5MB. Max. memory is 16.0GB. [2023-11-30 04:46:58,004 INFO L158 Benchmark]: TraceAbstraction took 10772.89ms. Allocated memory was 488.6MB in the beginning and 2.3GB in the end (delta: 1.8GB). Free memory was 371.4MB in the beginning and 1.4GB in the end (delta: -981.6MB). Peak memory consumption was 820.9MB. Max. memory is 16.0GB. [2023-11-30 04:46:58,005 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 339.7MB. Free memory is still 295.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 508.08ms. Allocated memory is still 488.6MB. Free memory was 446.9MB in the beginning and 421.7MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 64.93ms. Allocated memory is still 488.6MB. Free memory was 421.7MB in the beginning and 419.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 44.52ms. Allocated memory is still 488.6MB. Free memory was 419.0MB in the beginning and 416.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 954.69ms. Allocated memory is still 488.6MB. Free memory was 416.9MB in the beginning and 372.5MB in the end (delta: 44.4MB). Peak memory consumption was 75.5MB. Max. memory is 16.0GB. * TraceAbstraction took 10772.89ms. Allocated memory was 488.6MB in the beginning and 2.3GB in the end (delta: 1.8GB). Free memory was 371.4MB in the beginning and 1.4GB in the end (delta: -981.6MB). Peak memory consumption was 820.9MB. 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 - 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 - 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 - 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 - 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 - 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 7 procedures, 234 locations, 79 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: 10.6s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 513 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 513 mSDsluCounter, 182 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 44 mSDsCounter, 135 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 935 IncrementalHoareTripleChecker+Invalid, 1070 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 135 mSolverCounterUnsat, 138 mSDtfsCounter, 935 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4175occurred in iteration=13, InterpolantAutomatonStates: 63, 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, 1.7s InterpolantComputationTime, 1042 NumberOfCodeBlocks, 1042 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1028 ConstructedInterpolants, 0 QuantifiedInterpolants, 4323 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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 44 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-30 04:46:58,024 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...