/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/mix021_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 04:44:39,794 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 04:44:39,870 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 04:44:39,909 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 04:44:39,910 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 04:44:39,910 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 04:44:39,911 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 04:44:39,911 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 04:44:39,912 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 04:44:39,912 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 04:44:39,912 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 04:44:39,913 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 04:44:39,913 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 04:44:39,913 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 04:44:39,913 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 04:44:39,914 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 04:44:39,914 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 04:44:39,914 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 04:44:39,915 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 04:44:39,915 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 04:44:39,915 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 04:44:39,916 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 04:44:39,916 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 04:44:39,916 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 04:44:39,916 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 04:44:39,917 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 04:44:39,917 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 04:44:39,917 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 04:44:39,917 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 04:44:39,917 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 04:44:39,918 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 04:44:39,918 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 04:44:39,918 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 04:44:39,918 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer base address is valid at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer to allocated memory at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check array bounds for arrays that are off heap -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check if freed pointer was valid -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2023-11-30 04:44:40,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 04:44:40,109 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 04:44:40,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 04:44:40,112 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 04:44:40,113 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 04:44:40,114 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix021_tso.oepc.i [2023-11-30 04:44:41,264 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 04:44:41,529 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 04:44:41,529 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix021_tso.oepc.i [2023-11-30 04:44:41,545 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cf61bc8c/4a8e2929bfca4249a014fcefc286813a/FLAG66ad3a225 [2023-11-30 04:44:41,557 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cf61bc8c/4a8e2929bfca4249a014fcefc286813a [2023-11-30 04:44:41,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 04:44:41,561 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 04:44:41,562 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 04:44:41,562 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 04:44:41,565 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 04:44:41,565 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 04:44:41" (1/1) ... [2023-11-30 04:44:41,566 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3157680f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:44:41, skipping insertion in model container [2023-11-30 04:44:41,566 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 04:44:41" (1/1) ... [2023-11-30 04:44:41,612 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 04:44:41,943 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 04:44:41,956 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 04:44:42,022 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 04:44:42,047 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 04:44:42,047 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 04:44:42,053 INFO L206 MainTranslator]: Completed translation [2023-11-30 04:44:42,053 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:44:42 WrapperNode [2023-11-30 04:44:42,054 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 04:44:42,054 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 04:44:42,055 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 04:44:42,055 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 04:44:42,062 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:44:42" (1/1) ... [2023-11-30 04:44:42,089 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:44:42" (1/1) ... [2023-11-30 04:44:42,133 INFO L138 Inliner]: procedures = 177, calls = 70, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 166 [2023-11-30 04:44:42,133 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 04:44:42,134 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 04:44:42,134 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 04:44:42,134 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 04:44:42,142 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:44:42" (1/1) ... [2023-11-30 04:44:42,142 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:44:42" (1/1) ... [2023-11-30 04:44:42,155 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:44:42" (1/1) ... [2023-11-30 04:44:42,156 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:44:42" (1/1) ... [2023-11-30 04:44:42,165 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:44:42" (1/1) ... [2023-11-30 04:44:42,167 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:44:42" (1/1) ... [2023-11-30 04:44:42,169 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:44:42" (1/1) ... [2023-11-30 04:44:42,170 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:44:42" (1/1) ... [2023-11-30 04:44:42,186 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 04:44:42,187 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 04:44:42,187 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 04:44:42,187 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 04:44:42,188 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:44:42" (1/1) ... [2023-11-30 04:44:42,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 04:44:42,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 04:44:42,217 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 04:44:42,234 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 04:44:42,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 04:44:42,258 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-30 04:44:42,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 04:44:42,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 04:44:42,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 04:44:42,258 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-30 04:44:42,258 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-30 04:44:42,258 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-30 04:44:42,259 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-30 04:44:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-30 04:44:42,259 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-30 04:44:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-30 04:44:42,259 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-30 04:44:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 04:44:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-30 04:44:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 04:44:42,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 04:44:42,261 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 04:44:42,393 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 04:44:42,395 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 04:44:42,698 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 04:44:42,825 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 04:44:42,825 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-30 04:44:42,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 04:44:42 BoogieIcfgContainer [2023-11-30 04:44:42,827 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 04:44:42,829 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 04:44:42,829 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 04:44:42,832 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 04:44:42,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 04:44:41" (1/3) ... [2023-11-30 04:44:42,833 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ef0297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 04:44:42, skipping insertion in model container [2023-11-30 04:44:42,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:44:42" (2/3) ... [2023-11-30 04:44:42,834 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ef0297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 04:44:42, skipping insertion in model container [2023-11-30 04:44:42,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 04:44:42" (3/3) ... [2023-11-30 04:44:42,835 INFO L112 eAbstractionObserver]: Analyzing ICFG mix021_tso.oepc.i [2023-11-30 04:44:42,851 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 04:44:42,851 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-30 04:44:42,852 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 04:44:42,927 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-30 04:44:42,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 154 places, 144 transitions, 304 flow [2023-11-30 04:44:43,051 INFO L124 PetriNetUnfolderBase]: 3/140 cut-off events. [2023-11-30 04:44:43,053 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 04:44:43,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 140 events. 3/140 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 112 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 101. Up to 2 conditions per place. [2023-11-30 04:44:43,059 INFO L82 GeneralOperation]: Start removeDead. Operand has 154 places, 144 transitions, 304 flow [2023-11-30 04:44:43,065 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 91 transitions, 191 flow [2023-11-30 04:44:43,081 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 04:44:43,087 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;@76e28a37, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 04:44:43,087 INFO L363 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-11-30 04:44:43,099 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 04:44:43,099 INFO L124 PetriNetUnfolderBase]: 0/42 cut-off events. [2023-11-30 04:44:43,099 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 04:44:43,099 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:44:43,104 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] [2023-11-30 04:44:43,104 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-30 04:44:43,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:44:43,108 INFO L85 PathProgramCache]: Analyzing trace with hash -2082732934, now seen corresponding path program 1 times [2023-11-30 04:44:43,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:44:43,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189831621] [2023-11-30 04:44:43,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:44:43,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:44:43,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:44:43,402 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 04:44:43,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:44:43,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189831621] [2023-11-30 04:44:43,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189831621] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:44:43,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:44:43,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:44:43,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940138766] [2023-11-30 04:44:43,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:44:43,412 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:44:43,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:44:43,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:44:43,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:44:43,442 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 144 [2023-11-30 04:44:43,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 91 transitions, 191 flow. Second operand has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:44:43,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:44:43,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 144 [2023-11-30 04:44:43,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:44:43,552 INFO L124 PetriNetUnfolderBase]: 20/155 cut-off events. [2023-11-30 04:44:43,552 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 04:44:43,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 155 events. 20/155 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 383 event pairs, 20 based on Foata normal form. 0/148 useless extension candidates. Maximal degree in co-relation 166. Up to 53 conditions per place. [2023-11-30 04:44:43,555 INFO L140 encePairwiseOnDemand]: 142/144 looper letters, 20 selfloop transitions, 1 changer transitions 0/90 dead transitions. [2023-11-30 04:44:43,555 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 90 transitions, 231 flow [2023-11-30 04:44:43,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:44:43,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:44:43,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 343 transitions. [2023-11-30 04:44:43,572 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7939814814814815 [2023-11-30 04:44:43,573 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 343 transitions. [2023-11-30 04:44:43,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 343 transitions. [2023-11-30 04:44:43,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:44:43,578 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 343 transitions. [2023-11-30 04:44:43,583 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:44:43,587 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 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 04:44:43,587 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 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 04:44:43,592 INFO L307 CegarLoopForPetriNet]: 101 programPoint places, 1 predicate places. [2023-11-30 04:44:43,592 INFO L500 AbstractCegarLoop]: Abstraction has has 102 places, 90 transitions, 231 flow [2023-11-30 04:44:43,593 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:44:43,593 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:44:43,593 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] [2023-11-30 04:44:43,594 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 04:44:43,594 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-30 04:44:43,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:44:43,594 INFO L85 PathProgramCache]: Analyzing trace with hash -2082732933, now seen corresponding path program 1 times [2023-11-30 04:44:43,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:44:43,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759582445] [2023-11-30 04:44:43,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:44:43,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:44:43,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:44:43,699 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 04:44:43,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:44:43,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759582445] [2023-11-30 04:44:43,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759582445] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:44:43,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:44:43,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:44:43,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877559335] [2023-11-30 04:44:43,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:44:43,701 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:44:43,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:44:43,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:44:43,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:44:43,703 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 144 [2023-11-30 04:44:43,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 90 transitions, 231 flow. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:44:43,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:44:43,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 144 [2023-11-30 04:44:43,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:44:43,759 INFO L124 PetriNetUnfolderBase]: 28/174 cut-off events. [2023-11-30 04:44:43,759 INFO L125 PetriNetUnfolderBase]: For 31/33 co-relation queries the response was YES. [2023-11-30 04:44:43,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 315 conditions, 174 events. 28/174 cut-off events. For 31/33 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 495 event pairs, 28 based on Foata normal form. 0/169 useless extension candidates. Maximal degree in co-relation 251. Up to 60 conditions per place. [2023-11-30 04:44:43,761 INFO L140 encePairwiseOnDemand]: 142/144 looper letters, 18 selfloop transitions, 1 changer transitions 0/89 dead transitions. [2023-11-30 04:44:43,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 89 transitions, 265 flow [2023-11-30 04:44:43,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:44:43,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:44:43,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 353 transitions. [2023-11-30 04:44:43,763 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8171296296296297 [2023-11-30 04:44:43,763 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 353 transitions. [2023-11-30 04:44:43,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 353 transitions. [2023-11-30 04:44:43,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:44:43,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 353 transitions. [2023-11-30 04:44:43,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:44:43,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 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 04:44:43,766 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 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 04:44:43,766 INFO L307 CegarLoopForPetriNet]: 101 programPoint places, 2 predicate places. [2023-11-30 04:44:43,767 INFO L500 AbstractCegarLoop]: Abstraction has has 103 places, 89 transitions, 265 flow [2023-11-30 04:44:43,767 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:44:43,767 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:44:43,767 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] [2023-11-30 04:44:43,767 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 04:44:43,768 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-30 04:44:43,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:44:43,768 INFO L85 PathProgramCache]: Analyzing trace with hash -699409447, now seen corresponding path program 1 times [2023-11-30 04:44:43,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:44:43,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548154578] [2023-11-30 04:44:43,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:44:43,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:44:43,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:44:43,880 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 04:44:43,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:44:43,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548154578] [2023-11-30 04:44:43,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548154578] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:44:43,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:44:43,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:44:43,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303598167] [2023-11-30 04:44:43,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:44:43,886 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:44:43,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:44:43,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:44:43,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:44:43,889 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 144 [2023-11-30 04:44:43,890 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 89 transitions, 265 flow. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:44:43,892 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:44:43,892 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 144 [2023-11-30 04:44:43,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:44:43,957 INFO L124 PetriNetUnfolderBase]: 28/173 cut-off events. [2023-11-30 04:44:43,958 INFO L125 PetriNetUnfolderBase]: For 93/101 co-relation queries the response was YES. [2023-11-30 04:44:43,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 378 conditions, 173 events. 28/173 cut-off events. For 93/101 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 482 event pairs, 28 based on Foata normal form. 1/169 useless extension candidates. Maximal degree in co-relation 306. Up to 60 conditions per place. [2023-11-30 04:44:43,962 INFO L140 encePairwiseOnDemand]: 142/144 looper letters, 19 selfloop transitions, 1 changer transitions 0/88 dead transitions. [2023-11-30 04:44:43,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 88 transitions, 301 flow [2023-11-30 04:44:43,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:44:43,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:44:43,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 342 transitions. [2023-11-30 04:44:43,964 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7916666666666666 [2023-11-30 04:44:43,964 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 342 transitions. [2023-11-30 04:44:43,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 342 transitions. [2023-11-30 04:44:43,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:44:43,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 342 transitions. [2023-11-30 04:44:43,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:44:43,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 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 04:44:43,967 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 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 04:44:43,968 INFO L307 CegarLoopForPetriNet]: 101 programPoint places, 3 predicate places. [2023-11-30 04:44:43,968 INFO L500 AbstractCegarLoop]: Abstraction has has 104 places, 88 transitions, 301 flow [2023-11-30 04:44:43,969 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:44:43,969 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:44:43,969 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] [2023-11-30 04:44:43,969 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 04:44:43,969 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-30 04:44:43,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:44:43,970 INFO L85 PathProgramCache]: Analyzing trace with hash -699409446, now seen corresponding path program 1 times [2023-11-30 04:44:43,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:44:43,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756606722] [2023-11-30 04:44:43,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:44:43,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:44:43,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:44:44,042 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 04:44:44,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:44:44,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756606722] [2023-11-30 04:44:44,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756606722] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:44:44,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:44:44,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:44:44,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676785497] [2023-11-30 04:44:44,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:44:44,044 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:44:44,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:44:44,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:44:44,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:44:44,045 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 144 [2023-11-30 04:44:44,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 88 transitions, 301 flow. Second operand has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:44:44,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:44:44,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 144 [2023-11-30 04:44:44,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:44:44,098 INFO L124 PetriNetUnfolderBase]: 28/172 cut-off events. [2023-11-30 04:44:44,098 INFO L125 PetriNetUnfolderBase]: For 177/191 co-relation queries the response was YES. [2023-11-30 04:44:44,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 172 events. 28/172 cut-off events. For 177/191 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 480 event pairs, 28 based on Foata normal form. 1/168 useless extension candidates. Maximal degree in co-relation 359. Up to 59 conditions per place. [2023-11-30 04:44:44,100 INFO L140 encePairwiseOnDemand]: 142/144 looper letters, 17 selfloop transitions, 1 changer transitions 0/87 dead transitions. [2023-11-30 04:44:44,100 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 87 transitions, 331 flow [2023-11-30 04:44:44,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:44:44,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:44:44,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 352 transitions. [2023-11-30 04:44:44,101 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8148148148148148 [2023-11-30 04:44:44,101 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 352 transitions. [2023-11-30 04:44:44,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 352 transitions. [2023-11-30 04:44:44,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:44:44,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 352 transitions. [2023-11-30 04:44:44,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:44:44,104 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 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 04:44:44,104 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 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 04:44:44,105 INFO L307 CegarLoopForPetriNet]: 101 programPoint places, 4 predicate places. [2023-11-30 04:44:44,105 INFO L500 AbstractCegarLoop]: Abstraction has has 105 places, 87 transitions, 331 flow [2023-11-30 04:44:44,106 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:44:44,106 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:44:44,106 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] [2023-11-30 04:44:44,106 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 04:44:44,106 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-30 04:44:44,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:44:44,107 INFO L85 PathProgramCache]: Analyzing trace with hash 300638280, now seen corresponding path program 1 times [2023-11-30 04:44:44,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:44:44,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844733382] [2023-11-30 04:44:44,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:44:44,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:44:44,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:44:44,223 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 04:44:44,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:44:44,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844733382] [2023-11-30 04:44:44,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844733382] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:44:44,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:44:44,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:44:44,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314454916] [2023-11-30 04:44:44,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:44:44,225 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:44:44,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:44:44,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:44:44,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:44:44,227 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 144 [2023-11-30 04:44:44,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 87 transitions, 331 flow. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:44:44,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:44:44,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 144 [2023-11-30 04:44:44,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:44:44,289 INFO L124 PetriNetUnfolderBase]: 27/176 cut-off events. [2023-11-30 04:44:44,289 INFO L125 PetriNetUnfolderBase]: For 273/293 co-relation queries the response was YES. [2023-11-30 04:44:44,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 496 conditions, 176 events. 27/176 cut-off events. For 273/293 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 495 event pairs, 26 based on Foata normal form. 2/174 useless extension candidates. Maximal degree in co-relation 410. Up to 58 conditions per place. [2023-11-30 04:44:44,291 INFO L140 encePairwiseOnDemand]: 142/144 looper letters, 18 selfloop transitions, 1 changer transitions 0/87 dead transitions. [2023-11-30 04:44:44,291 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 87 transitions, 373 flow [2023-11-30 04:44:44,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:44:44,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:44:44,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 353 transitions. [2023-11-30 04:44:44,292 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8171296296296297 [2023-11-30 04:44:44,292 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 353 transitions. [2023-11-30 04:44:44,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 353 transitions. [2023-11-30 04:44:44,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:44:44,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 353 transitions. [2023-11-30 04:44:44,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:44:44,295 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 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 04:44:44,295 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 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 04:44:44,298 INFO L307 CegarLoopForPetriNet]: 101 programPoint places, 5 predicate places. [2023-11-30 04:44:44,298 INFO L500 AbstractCegarLoop]: Abstraction has has 106 places, 87 transitions, 373 flow [2023-11-30 04:44:44,298 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:44:44,298 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:44:44,299 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] [2023-11-30 04:44:44,299 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-30 04:44:44,302 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-30 04:44:44,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:44:44,303 INFO L85 PathProgramCache]: Analyzing trace with hash 300638279, now seen corresponding path program 1 times [2023-11-30 04:44:44,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:44:44,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316993921] [2023-11-30 04:44:44,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:44:44,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:44:44,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:44:44,381 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 04:44:44,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:44:44,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316993921] [2023-11-30 04:44:44,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316993921] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:44:44,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:44:44,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:44:44,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368667162] [2023-11-30 04:44:44,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:44:44,385 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:44:44,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:44:44,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:44:44,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:44:44,387 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 144 [2023-11-30 04:44:44,388 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 87 transitions, 373 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 04:44:44,388 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:44:44,388 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 144 [2023-11-30 04:44:44,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:44:44,438 INFO L124 PetriNetUnfolderBase]: 26/170 cut-off events. [2023-11-30 04:44:44,439 INFO L125 PetriNetUnfolderBase]: For 397/423 co-relation queries the response was YES. [2023-11-30 04:44:44,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 539 conditions, 170 events. 26/170 cut-off events. For 397/423 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 471 event pairs, 25 based on Foata normal form. 4/170 useless extension candidates. Maximal degree in co-relation 445. Up to 55 conditions per place. [2023-11-30 04:44:44,440 INFO L140 encePairwiseOnDemand]: 142/144 looper letters, 18 selfloop transitions, 1 changer transitions 0/86 dead transitions. [2023-11-30 04:44:44,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 86 transitions, 403 flow [2023-11-30 04:44:44,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:44:44,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:44:44,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 341 transitions. [2023-11-30 04:44:44,442 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7893518518518519 [2023-11-30 04:44:44,442 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 341 transitions. [2023-11-30 04:44:44,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 341 transitions. [2023-11-30 04:44:44,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:44:44,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 341 transitions. [2023-11-30 04:44:44,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:44:44,444 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 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 04:44:44,445 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 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 04:44:44,447 INFO L307 CegarLoopForPetriNet]: 101 programPoint places, 6 predicate places. [2023-11-30 04:44:44,447 INFO L500 AbstractCegarLoop]: Abstraction has has 107 places, 86 transitions, 403 flow [2023-11-30 04:44:44,447 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 04:44:44,448 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:44:44,448 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] [2023-11-30 04:44:44,448 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-30 04:44:44,448 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-30 04:44:44,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:44:44,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1630688084, now seen corresponding path program 1 times [2023-11-30 04:44:44,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:44:44,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479198434] [2023-11-30 04:44:44,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:44:44,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:44:44,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:44:44,523 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 04:44:44,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:44:44,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479198434] [2023-11-30 04:44:44,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479198434] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:44:44,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:44:44,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:44:44,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069977191] [2023-11-30 04:44:44,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:44:44,528 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:44:44,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:44:44,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:44:44,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:44:44,530 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 144 [2023-11-30 04:44:44,531 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 86 transitions, 403 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 04:44:44,531 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:44:44,531 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 144 [2023-11-30 04:44:44,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:44:44,585 INFO L124 PetriNetUnfolderBase]: 19/137 cut-off events. [2023-11-30 04:44:44,586 INFO L125 PetriNetUnfolderBase]: For 471/481 co-relation queries the response was YES. [2023-11-30 04:44:44,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 499 conditions, 137 events. 19/137 cut-off events. For 471/481 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 290 event pairs, 0 based on Foata normal form. 6/143 useless extension candidates. Maximal degree in co-relation 397. Up to 48 conditions per place. [2023-11-30 04:44:44,587 INFO L140 encePairwiseOnDemand]: 142/144 looper letters, 21 selfloop transitions, 1 changer transitions 0/88 dead transitions. [2023-11-30 04:44:44,587 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 88 transitions, 481 flow [2023-11-30 04:44:44,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:44:44,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:44:44,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 343 transitions. [2023-11-30 04:44:44,589 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7939814814814815 [2023-11-30 04:44:44,589 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 343 transitions. [2023-11-30 04:44:44,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 343 transitions. [2023-11-30 04:44:44,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:44:44,589 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 343 transitions. [2023-11-30 04:44:44,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:44:44,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 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 04:44:44,591 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 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 04:44:44,592 INFO L307 CegarLoopForPetriNet]: 101 programPoint places, 7 predicate places. [2023-11-30 04:44:44,592 INFO L500 AbstractCegarLoop]: Abstraction has has 108 places, 88 transitions, 481 flow [2023-11-30 04:44:44,593 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 04:44:44,593 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:44:44,593 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] [2023-11-30 04:44:44,593 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-30 04:44:44,593 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-30 04:44:44,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:44:44,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1630688083, now seen corresponding path program 1 times [2023-11-30 04:44:44,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:44:44,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372786078] [2023-11-30 04:44:44,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:44:44,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:44:44,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:44:44,698 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 04:44:44,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:44:44,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372786078] [2023-11-30 04:44:44,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372786078] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:44:44,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:44:44,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:44:44,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119579879] [2023-11-30 04:44:44,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:44:44,699 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:44:44,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:44:44,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:44:44,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:44:44,701 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 144 [2023-11-30 04:44:44,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 88 transitions, 481 flow. Second operand has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:44:44,702 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:44:44,702 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 144 [2023-11-30 04:44:44,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:44:44,744 INFO L124 PetriNetUnfolderBase]: 12/124 cut-off events. [2023-11-30 04:44:44,744 INFO L125 PetriNetUnfolderBase]: For 538/552 co-relation queries the response was YES. [2023-11-30 04:44:44,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 452 conditions, 124 events. 12/124 cut-off events. For 538/552 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 230 event pairs, 0 based on Foata normal form. 6/130 useless extension candidates. Maximal degree in co-relation 343. Up to 35 conditions per place. [2023-11-30 04:44:44,745 INFO L140 encePairwiseOnDemand]: 142/144 looper letters, 0 selfloop transitions, 0 changer transitions 87/87 dead transitions. [2023-11-30 04:44:44,745 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 87 transitions, 511 flow [2023-11-30 04:44:44,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:44:44,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:44:44,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 353 transitions. [2023-11-30 04:44:44,746 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8171296296296297 [2023-11-30 04:44:44,746 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 353 transitions. [2023-11-30 04:44:44,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 353 transitions. [2023-11-30 04:44:44,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:44:44,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 353 transitions. [2023-11-30 04:44:44,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:44:44,750 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 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 04:44:44,750 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 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 04:44:44,752 INFO L307 CegarLoopForPetriNet]: 101 programPoint places, 8 predicate places. [2023-11-30 04:44:44,752 INFO L500 AbstractCegarLoop]: Abstraction has has 109 places, 87 transitions, 511 flow [2023-11-30 04:44:44,753 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:44:44,760 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mix021_tso.oepc.i_BEv2_AllErrorsAtOnce [2023-11-30 04:44:44,794 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 12 remaining) [2023-11-30 04:44:44,794 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 12 remaining) [2023-11-30 04:44:44,794 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 12 remaining) [2023-11-30 04:44:44,795 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 12 remaining) [2023-11-30 04:44:44,795 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 12 remaining) [2023-11-30 04:44:44,795 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 12 remaining) [2023-11-30 04:44:44,795 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 12 remaining) [2023-11-30 04:44:44,795 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 12 remaining) [2023-11-30 04:44:44,795 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 12 remaining) [2023-11-30 04:44:44,796 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 12 remaining) [2023-11-30 04:44:44,796 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 12 remaining) [2023-11-30 04:44:44,796 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2023-11-30 04:44:44,796 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-30 04:44:44,797 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 04:44:44,799 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 04:44:44,799 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 04:44:44,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 04:44:44 BasicIcfg [2023-11-30 04:44:44,805 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 04:44:44,806 INFO L158 Benchmark]: Toolchain (without parser) took 3245.19ms. Allocated memory was 335.5MB in the beginning and 568.3MB in the end (delta: 232.8MB). Free memory was 283.4MB in the beginning and 402.4MB in the end (delta: -119.1MB). Peak memory consumption was 114.4MB. Max. memory is 16.0GB. [2023-11-30 04:44:44,806 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 335.5MB. Free memory is still 288.9MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 04:44:44,806 INFO L158 Benchmark]: CACSL2BoogieTranslator took 492.29ms. Allocated memory is still 335.5MB. Free memory was 283.0MB in the beginning and 259.2MB in the end (delta: 23.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-11-30 04:44:44,807 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.68ms. Allocated memory is still 335.5MB. Free memory was 259.2MB in the beginning and 256.4MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-11-30 04:44:44,807 INFO L158 Benchmark]: Boogie Preprocessor took 52.72ms. Allocated memory is still 335.5MB. Free memory was 256.4MB in the beginning and 254.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 04:44:44,807 INFO L158 Benchmark]: RCFGBuilder took 639.95ms. Allocated memory was 335.5MB in the beginning and 568.3MB in the end (delta: 232.8MB). Free memory was 254.3MB in the beginning and 504.3MB in the end (delta: -250.0MB). Peak memory consumption was 15.9MB. Max. memory is 16.0GB. [2023-11-30 04:44:44,808 INFO L158 Benchmark]: TraceAbstraction took 1976.04ms. Allocated memory is still 568.3MB. Free memory was 503.6MB in the beginning and 402.4MB in the end (delta: 101.1MB). Peak memory consumption was 100.6MB. Max. memory is 16.0GB. [2023-11-30 04:44:44,812 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 335.5MB. Free memory is still 288.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 492.29ms. Allocated memory is still 335.5MB. Free memory was 283.0MB in the beginning and 259.2MB in the end (delta: 23.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 78.68ms. Allocated memory is still 335.5MB. Free memory was 259.2MB in the beginning and 256.4MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 52.72ms. Allocated memory is still 335.5MB. Free memory was 256.4MB in the beginning and 254.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 639.95ms. Allocated memory was 335.5MB in the beginning and 568.3MB in the end (delta: 232.8MB). Free memory was 254.3MB in the beginning and 504.3MB in the end (delta: -250.0MB). Peak memory consumption was 15.9MB. Max. memory is 16.0GB. * TraceAbstraction took 1976.04ms. Allocated memory is still 568.3MB. Free memory was 503.6MB in the beginning and 402.4MB in the end (delta: 101.1MB). Peak memory consumption was 100.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 179 locations, 12 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.8s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 64 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 64 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 166 IncrementalHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 60 mSDtfsCounter, 166 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=511occurred in iteration=8, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 420 NumberOfCodeBlocks, 420 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 412 ConstructedInterpolants, 0 QuantifiedInterpolants, 556 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-30 04:44:44,833 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...