/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/mix047_power.oepc_pso.oepc_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 04:46:07,265 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 04:46:07,342 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-11-30 04:46:07,377 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 04:46:07,378 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 04:46:07,378 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 04:46:07,379 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 04:46:07,379 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 04:46:07,380 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 04:46:07,383 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 04:46:07,384 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 04:46:07,384 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 04:46:07,384 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 04:46:07,385 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 04:46:07,385 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 04:46:07,386 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 04:46:07,386 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 04:46:07,386 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 04:46:07,386 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 04:46:07,387 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 04:46:07,387 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 04:46:07,388 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 04:46:07,388 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 04:46:07,388 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 04:46:07,389 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 04:46:07,389 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 04:46:07,389 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 04:46:07,389 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 04:46:07,389 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 04:46:07,390 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 04:46:07,390 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 04:46:07,390 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 04:46:07,390 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 04:46:07,390 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer base address is valid at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer to allocated memory at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check array bounds for arrays that are off heap -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check if freed pointer was valid -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2023-11-30 04:46:07,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 04:46:07,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 04:46:07,652 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 04:46:07,653 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 04:46:07,653 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 04:46:07,654 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix047_power.oepc_pso.oepc_rmo.oepc.i [2023-11-30 04:46:08,878 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 04:46:09,119 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 04:46:09,120 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix047_power.oepc_pso.oepc_rmo.oepc.i [2023-11-30 04:46:09,142 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b43531be3/cf81e40647a44f7eac6a31965ff97b08/FLAGd1e3f5b0b [2023-11-30 04:46:09,152 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b43531be3/cf81e40647a44f7eac6a31965ff97b08 [2023-11-30 04:46:09,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 04:46:09,155 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 04:46:09,156 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 04:46:09,157 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 04:46:09,160 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 04:46:09,160 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 04:46:09" (1/1) ... [2023-11-30 04:46:09,161 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@403f2d89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:09, skipping insertion in model container [2023-11-30 04:46:09,161 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 04:46:09" (1/1) ... [2023-11-30 04:46:09,201 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 04:46:09,590 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 04:46:09,603 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 04:46:09,643 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 04:46:09,673 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 04:46:09,674 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 04:46:09,680 INFO L206 MainTranslator]: Completed translation [2023-11-30 04:46:09,680 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:09 WrapperNode [2023-11-30 04:46:09,680 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 04:46:09,682 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 04:46:09,682 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 04:46:09,682 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 04:46:09,688 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:09" (1/1) ... [2023-11-30 04:46:09,707 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:09" (1/1) ... [2023-11-30 04:46:09,737 INFO L138 Inliner]: procedures = 177, calls = 72, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 149 [2023-11-30 04:46:09,738 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 04:46:09,738 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 04:46:09,738 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 04:46:09,739 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 04:46:09,751 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:09" (1/1) ... [2023-11-30 04:46:09,751 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:09" (1/1) ... [2023-11-30 04:46:09,762 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:09" (1/1) ... [2023-11-30 04:46:09,762 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:09" (1/1) ... [2023-11-30 04:46:09,769 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:09" (1/1) ... [2023-11-30 04:46:09,771 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:09" (1/1) ... [2023-11-30 04:46:09,789 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:09" (1/1) ... [2023-11-30 04:46:09,790 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:09" (1/1) ... [2023-11-30 04:46:09,793 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 04:46:09,794 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 04:46:09,794 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 04:46:09,794 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 04:46:09,795 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:09" (1/1) ... [2023-11-30 04:46:09,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 04:46:09,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 04:46:09,833 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-30 04:46:09,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-30 04:46:09,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 04:46:09,862 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-30 04:46:09,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 04:46:09,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 04:46:09,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 04:46:09,863 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-30 04:46:09,864 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-30 04:46:09,864 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-30 04:46:09,864 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-30 04:46:09,864 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-30 04:46:09,864 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-30 04:46:09,864 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-30 04:46:09,864 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-30 04:46:09,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 04:46:09,865 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-30 04:46:09,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 04:46:09,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 04:46:09,866 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-30 04:46:10,023 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 04:46:10,025 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 04:46:10,330 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 04:46:10,502 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 04:46:10,502 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-30 04:46:10,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 04:46:10 BoogieIcfgContainer [2023-11-30 04:46:10,504 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 04:46:10,506 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 04:46:10,506 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 04:46:10,510 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 04:46:10,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 04:46:09" (1/3) ... [2023-11-30 04:46:10,511 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fc99165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 04:46:10, skipping insertion in model container [2023-11-30 04:46:10,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:46:09" (2/3) ... [2023-11-30 04:46:10,512 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fc99165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 04:46:10, skipping insertion in model container [2023-11-30 04:46:10,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 04:46:10" (3/3) ... [2023-11-30 04:46:10,513 INFO L112 eAbstractionObserver]: Analyzing ICFG mix047_power.oepc_pso.oepc_rmo.oepc.i [2023-11-30 04:46:10,531 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 04:46:10,531 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-30 04:46:10,532 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 04:46:10,611 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-30 04:46:10,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 155 places, 145 transitions, 306 flow [2023-11-30 04:46:10,744 INFO L124 PetriNetUnfolderBase]: 3/141 cut-off events. [2023-11-30 04:46:10,744 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 04:46:10,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 141 events. 3/141 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 114 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 102. Up to 2 conditions per place. [2023-11-30 04:46:10,749 INFO L82 GeneralOperation]: Start removeDead. Operand has 155 places, 145 transitions, 306 flow [2023-11-30 04:46:10,755 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 91 transitions, 191 flow [2023-11-30 04:46:10,770 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 04:46:10,778 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;@1b9bdff2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 04:46:10,778 INFO L363 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-11-30 04:46:10,797 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 04:46:10,797 INFO L124 PetriNetUnfolderBase]: 0/42 cut-off events. [2023-11-30 04:46:10,798 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 04:46:10,798 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:46:10,799 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 04:46:10,799 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 04:46:10,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:46:10,804 INFO L85 PathProgramCache]: Analyzing trace with hash -747998190, now seen corresponding path program 1 times [2023-11-30 04:46:10,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:46:10,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061892053] [2023-11-30 04:46:10,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:46:10,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:46:10,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:46:11,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 04:46:11,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:46:11,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061892053] [2023-11-30 04:46:11,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061892053] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:46:11,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:46:11,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:46:11,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186746843] [2023-11-30 04:46:11,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:46:11,189 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:46:11,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:46:11,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:46:11,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:46:11,220 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 145 [2023-11-30 04:46:11,225 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 04:46:11,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:46:11,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 145 [2023-11-30 04:46:11,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:46:11,375 INFO L124 PetriNetUnfolderBase]: 85/348 cut-off events. [2023-11-30 04:46:11,376 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-30 04:46:11,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 537 conditions, 348 events. 85/348 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1630 event pairs, 85 based on Foata normal form. 0/328 useless extension candidates. Maximal degree in co-relation 478. Up to 160 conditions per place. [2023-11-30 04:46:11,382 INFO L140 encePairwiseOnDemand]: 143/145 looper letters, 21 selfloop transitions, 1 changer transitions 0/90 dead transitions. [2023-11-30 04:46:11,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 90 transitions, 233 flow [2023-11-30 04:46:11,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:46:11,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:46:11,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 344 transitions. [2023-11-30 04:46:11,399 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7908045977011494 [2023-11-30 04:46:11,400 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 344 transitions. [2023-11-30 04:46:11,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 344 transitions. [2023-11-30 04:46:11,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:46:11,406 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 344 transitions. [2023-11-30 04:46:11,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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 04:46:11,415 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:46:11,416 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:46:11,420 INFO L307 CegarLoopForPetriNet]: 101 programPoint places, 1 predicate places. [2023-11-30 04:46:11,421 INFO L500 AbstractCegarLoop]: Abstraction has has 102 places, 90 transitions, 233 flow [2023-11-30 04:46:11,421 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 04:46:11,421 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:46:11,422 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 04:46:11,422 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 04:46:11,423 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 04:46:11,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:46:11,423 INFO L85 PathProgramCache]: Analyzing trace with hash -747998189, now seen corresponding path program 1 times [2023-11-30 04:46:11,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:46:11,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571823240] [2023-11-30 04:46:11,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:46:11,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:46:11,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:46:11,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 04:46:11,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:46:11,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571823240] [2023-11-30 04:46:11,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571823240] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:46:11,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:46:11,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:46:11,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002143551] [2023-11-30 04:46:11,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:46:11,589 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:46:11,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:46:11,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:46:11,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:46:11,590 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 145 [2023-11-30 04:46:11,591 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 90 transitions, 233 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 04:46:11,591 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:46:11,591 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 145 [2023-11-30 04:46:11,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:46:11,697 INFO L124 PetriNetUnfolderBase]: 114/382 cut-off events. [2023-11-30 04:46:11,697 INFO L125 PetriNetUnfolderBase]: For 104/124 co-relation queries the response was YES. [2023-11-30 04:46:11,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 791 conditions, 382 events. 114/382 cut-off events. For 104/124 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1820 event pairs, 114 based on Foata normal form. 0/370 useless extension candidates. Maximal degree in co-relation 727. Up to 188 conditions per place. [2023-11-30 04:46:11,701 INFO L140 encePairwiseOnDemand]: 143/145 looper letters, 19 selfloop transitions, 1 changer transitions 0/89 dead transitions. [2023-11-30 04:46:11,701 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 89 transitions, 269 flow [2023-11-30 04:46:11,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:46:11,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:46:11,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 354 transitions. [2023-11-30 04:46:11,704 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8137931034482758 [2023-11-30 04:46:11,704 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 354 transitions. [2023-11-30 04:46:11,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 354 transitions. [2023-11-30 04:46:11,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:46:11,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 354 transitions. [2023-11-30 04:46:11,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:46:11,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:46:11,708 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:46:11,709 INFO L307 CegarLoopForPetriNet]: 101 programPoint places, 2 predicate places. [2023-11-30 04:46:11,710 INFO L500 AbstractCegarLoop]: Abstraction has has 103 places, 89 transitions, 269 flow [2023-11-30 04:46:11,710 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 04:46:11,710 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:46:11,710 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 04:46:11,711 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 04:46:11,711 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-30 04:46:11,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:46:11,712 INFO L85 PathProgramCache]: Analyzing trace with hash -448550791, now seen corresponding path program 1 times [2023-11-30 04:46:11,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:46:11,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139788990] [2023-11-30 04:46:11,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:46:11,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:46:11,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:46:11,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 04:46:11,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:46:11,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139788990] [2023-11-30 04:46:11,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139788990] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:46:11,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:46:11,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:46:11,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277480686] [2023-11-30 04:46:11,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:46:11,835 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:46:11,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:46:11,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:46:11,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:46:11,838 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 145 [2023-11-30 04:46:11,839 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 89 transitions, 269 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 04:46:11,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:46:11,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 145 [2023-11-30 04:46:11,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:46:11,946 INFO L124 PetriNetUnfolderBase]: 112/365 cut-off events. [2023-11-30 04:46:11,947 INFO L125 PetriNetUnfolderBase]: For 263/299 co-relation queries the response was YES. [2023-11-30 04:46:11,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 957 conditions, 365 events. 112/365 cut-off events. For 263/299 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1709 event pairs, 54 based on Foata normal form. 3/359 useless extension candidates. Maximal degree in co-relation 886. Up to 186 conditions per place. [2023-11-30 04:46:11,952 INFO L140 encePairwiseOnDemand]: 143/145 looper letters, 21 selfloop transitions, 1 changer transitions 0/90 dead transitions. [2023-11-30 04:46:11,952 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 90 transitions, 321 flow [2023-11-30 04:46:11,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:46:11,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:46:11,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 356 transitions. [2023-11-30 04:46:11,954 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8183908045977012 [2023-11-30 04:46:11,954 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 356 transitions. [2023-11-30 04:46:11,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 356 transitions. [2023-11-30 04:46:11,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:46:11,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 356 transitions. [2023-11-30 04:46:11,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:46:11,956 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:46:11,957 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:46:11,958 INFO L307 CegarLoopForPetriNet]: 101 programPoint places, 3 predicate places. [2023-11-30 04:46:11,958 INFO L500 AbstractCegarLoop]: Abstraction has has 104 places, 90 transitions, 321 flow [2023-11-30 04:46:11,959 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 04:46:11,959 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:46:11,959 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 04:46:11,959 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 04:46:11,959 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-30 04:46:11,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:46:11,960 INFO L85 PathProgramCache]: Analyzing trace with hash -448550792, now seen corresponding path program 1 times [2023-11-30 04:46:11,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:46:11,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867095138] [2023-11-30 04:46:11,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:46:11,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:46:11,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:46:12,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 04:46:12,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:46:12,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867095138] [2023-11-30 04:46:12,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867095138] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:46:12,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:46:12,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:46:12,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209473587] [2023-11-30 04:46:12,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:46:12,045 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:46:12,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:46:12,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:46:12,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:46:12,051 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 145 [2023-11-30 04:46:12,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 90 transitions, 321 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 04:46:12,051 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:46:12,052 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 145 [2023-11-30 04:46:12,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:46:12,192 INFO L124 PetriNetUnfolderBase]: 110/360 cut-off events. [2023-11-30 04:46:12,192 INFO L125 PetriNetUnfolderBase]: For 465/519 co-relation queries the response was YES. [2023-11-30 04:46:12,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1126 conditions, 360 events. 110/360 cut-off events. For 465/519 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1678 event pairs, 54 based on Foata normal form. 3/354 useless extension candidates. Maximal degree in co-relation 1047. Up to 181 conditions per place. [2023-11-30 04:46:12,195 INFO L140 encePairwiseOnDemand]: 143/145 looper letters, 21 selfloop transitions, 1 changer transitions 0/89 dead transitions. [2023-11-30 04:46:12,195 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 89 transitions, 359 flow [2023-11-30 04:46:12,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:46:12,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:46:12,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 344 transitions. [2023-11-30 04:46:12,197 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7908045977011494 [2023-11-30 04:46:12,197 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 344 transitions. [2023-11-30 04:46:12,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 344 transitions. [2023-11-30 04:46:12,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:46:12,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 344 transitions. [2023-11-30 04:46:12,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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 04:46:12,200 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:46:12,201 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:46:12,202 INFO L307 CegarLoopForPetriNet]: 101 programPoint places, 4 predicate places. [2023-11-30 04:46:12,202 INFO L500 AbstractCegarLoop]: Abstraction has has 105 places, 89 transitions, 359 flow [2023-11-30 04:46:12,202 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 04:46:12,203 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:46:12,203 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 04:46:12,203 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 04:46:12,203 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-30 04:46:12,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:46:12,203 INFO L85 PathProgramCache]: Analyzing trace with hash 828966067, now seen corresponding path program 1 times [2023-11-30 04:46:12,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:46:12,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588825016] [2023-11-30 04:46:12,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:46:12,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:46:12,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:46:12,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 04:46:12,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:46:12,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588825016] [2023-11-30 04:46:12,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588825016] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:46:12,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:46:12,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:46:12,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891670309] [2023-11-30 04:46:12,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:46:12,270 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:46:12,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:46:12,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:46:12,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:46:12,271 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 145 [2023-11-30 04:46:12,272 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 89 transitions, 359 flow. Second operand has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:46:12,272 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:46:12,272 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 145 [2023-11-30 04:46:12,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:46:12,365 INFO L124 PetriNetUnfolderBase]: 103/368 cut-off events. [2023-11-30 04:46:12,365 INFO L125 PetriNetUnfolderBase]: For 664/736 co-relation queries the response was YES. [2023-11-30 04:46:12,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1273 conditions, 368 events. 103/368 cut-off events. For 664/736 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1725 event pairs, 48 based on Foata normal form. 6/368 useless extension candidates. Maximal degree in co-relation 1186. Up to 174 conditions per place. [2023-11-30 04:46:12,368 INFO L140 encePairwiseOnDemand]: 143/145 looper letters, 24 selfloop transitions, 1 changer transitions 0/91 dead transitions. [2023-11-30 04:46:12,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 91 transitions, 433 flow [2023-11-30 04:46:12,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:46:12,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:46:12,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 345 transitions. [2023-11-30 04:46:12,370 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7931034482758621 [2023-11-30 04:46:12,370 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 345 transitions. [2023-11-30 04:46:12,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 345 transitions. [2023-11-30 04:46:12,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:46:12,370 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 345 transitions. [2023-11-30 04:46:12,371 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:46:12,372 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:46:12,372 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:46:12,374 INFO L307 CegarLoopForPetriNet]: 101 programPoint places, 5 predicate places. [2023-11-30 04:46:12,374 INFO L500 AbstractCegarLoop]: Abstraction has has 106 places, 91 transitions, 433 flow [2023-11-30 04:46:12,375 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:46:12,375 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:46:12,375 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 04:46:12,376 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-30 04:46:12,379 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-30 04:46:12,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:46:12,379 INFO L85 PathProgramCache]: Analyzing trace with hash 828966068, now seen corresponding path program 1 times [2023-11-30 04:46:12,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:46:12,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950540047] [2023-11-30 04:46:12,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:46:12,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:46:12,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:46:12,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 04:46:12,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:46:12,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950540047] [2023-11-30 04:46:12,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950540047] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:46:12,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:46:12,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:46:12,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843297974] [2023-11-30 04:46:12,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:46:12,499 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:46:12,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:46:12,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:46:12,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:46:12,501 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 145 [2023-11-30 04:46:12,502 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 91 transitions, 433 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 04:46:12,502 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:46:12,502 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 145 [2023-11-30 04:46:12,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:46:12,593 INFO L124 PetriNetUnfolderBase]: 96/346 cut-off events. [2023-11-30 04:46:12,593 INFO L125 PetriNetUnfolderBase]: For 933/1023 co-relation queries the response was YES. [2023-11-30 04:46:12,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1363 conditions, 346 events. 96/346 cut-off events. For 933/1023 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1559 event pairs, 45 based on Foata normal form. 12/352 useless extension candidates. Maximal degree in co-relation 1269. Up to 161 conditions per place. [2023-11-30 04:46:12,597 INFO L140 encePairwiseOnDemand]: 143/145 looper letters, 22 selfloop transitions, 1 changer transitions 0/90 dead transitions. [2023-11-30 04:46:12,597 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 90 transitions, 471 flow [2023-11-30 04:46:12,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:46:12,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:46:12,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 355 transitions. [2023-11-30 04:46:12,598 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8160919540229885 [2023-11-30 04:46:12,598 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 355 transitions. [2023-11-30 04:46:12,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 355 transitions. [2023-11-30 04:46:12,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:46:12,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 355 transitions. [2023-11-30 04:46:12,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:46:12,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:46:12,601 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:46:12,603 INFO L307 CegarLoopForPetriNet]: 101 programPoint places, 6 predicate places. [2023-11-30 04:46:12,603 INFO L500 AbstractCegarLoop]: Abstraction has has 107 places, 90 transitions, 471 flow [2023-11-30 04:46:12,603 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 04:46:12,604 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:46:12,604 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 04:46:12,604 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-30 04:46:12,604 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 04:46:12,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:46:12,604 INFO L85 PathProgramCache]: Analyzing trace with hash -2110573032, now seen corresponding path program 1 times [2023-11-30 04:46:12,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:46:12,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921456179] [2023-11-30 04:46:12,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:46:12,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:46:12,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:46:12,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 04:46:12,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:46:12,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921456179] [2023-11-30 04:46:12,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921456179] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:46:12,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:46:12,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:46:12,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751644293] [2023-11-30 04:46:12,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:46:12,672 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:46:12,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:46:12,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:46:12,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:46:12,676 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 145 [2023-11-30 04:46:12,677 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 90 transitions, 471 flow. Second operand has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:46:12,677 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:46:12,677 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 145 [2023-11-30 04:46:12,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:46:12,766 INFO L124 PetriNetUnfolderBase]: 76/314 cut-off events. [2023-11-30 04:46:12,767 INFO L125 PetriNetUnfolderBase]: For 1107/1209 co-relation queries the response was YES. [2023-11-30 04:46:12,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1321 conditions, 314 events. 76/314 cut-off events. For 1107/1209 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1368 event pairs, 9 based on Foata normal form. 12/326 useless extension candidates. Maximal degree in co-relation 1219. Up to 141 conditions per place. [2023-11-30 04:46:12,770 INFO L140 encePairwiseOnDemand]: 143/145 looper letters, 27 selfloop transitions, 1 changer transitions 0/93 dead transitions. [2023-11-30 04:46:12,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 93 transitions, 575 flow [2023-11-30 04:46:12,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:46:12,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:46:12,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 345 transitions. [2023-11-30 04:46:12,772 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7931034482758621 [2023-11-30 04:46:12,772 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 345 transitions. [2023-11-30 04:46:12,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 345 transitions. [2023-11-30 04:46:12,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:46:12,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 345 transitions. [2023-11-30 04:46:12,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:46:12,775 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:46:12,775 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:46:12,776 INFO L307 CegarLoopForPetriNet]: 101 programPoint places, 7 predicate places. [2023-11-30 04:46:12,776 INFO L500 AbstractCegarLoop]: Abstraction has has 108 places, 93 transitions, 575 flow [2023-11-30 04:46:12,777 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:46:12,777 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:46:12,777 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 04:46:12,777 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-30 04:46:12,777 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 04:46:12,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:46:12,778 INFO L85 PathProgramCache]: Analyzing trace with hash -2110573031, now seen corresponding path program 1 times [2023-11-30 04:46:12,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:46:12,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349576864] [2023-11-30 04:46:12,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:46:12,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:46:12,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:46:12,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 04:46:12,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:46:12,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349576864] [2023-11-30 04:46:12,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349576864] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:46:12,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:46:12,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:46:12,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138145847] [2023-11-30 04:46:12,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:46:12,880 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:46:12,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:46:12,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:46:12,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:46:12,882 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 145 [2023-11-30 04:46:12,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 93 transitions, 575 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 04:46:12,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:46:12,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 145 [2023-11-30 04:46:12,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:46:12,962 INFO L124 PetriNetUnfolderBase]: 56/270 cut-off events. [2023-11-30 04:46:12,963 INFO L125 PetriNetUnfolderBase]: For 1330/1456 co-relation queries the response was YES. [2023-11-30 04:46:12,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1202 conditions, 270 events. 56/270 cut-off events. For 1330/1456 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1085 event pairs, 0 based on Foata normal form. 24/294 useless extension candidates. Maximal degree in co-relation 1093. Up to 109 conditions per place. [2023-11-30 04:46:12,964 INFO L140 encePairwiseOnDemand]: 143/145 looper letters, 0 selfloop transitions, 0 changer transitions 92/92 dead transitions. [2023-11-30 04:46:12,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 92 transitions, 617 flow [2023-11-30 04:46:12,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:46:12,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:46:12,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 355 transitions. [2023-11-30 04:46:12,966 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8160919540229885 [2023-11-30 04:46:12,966 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 355 transitions. [2023-11-30 04:46:12,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 355 transitions. [2023-11-30 04:46:12,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:46:12,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 355 transitions. [2023-11-30 04:46:12,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:46:12,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:46:12,969 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 04:46:12,971 INFO L307 CegarLoopForPetriNet]: 101 programPoint places, 8 predicate places. [2023-11-30 04:46:12,972 INFO L500 AbstractCegarLoop]: Abstraction has has 109 places, 92 transitions, 617 flow [2023-11-30 04:46:12,972 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 04:46:12,979 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mix047_power.oepc_pso.oepc_rmo.oepc.i_BEv2_AllErrorsAtOnce [2023-11-30 04:46:13,017 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 12 remaining) [2023-11-30 04:46:13,018 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 12 remaining) [2023-11-30 04:46:13,020 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 12 remaining) [2023-11-30 04:46:13,021 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 12 remaining) [2023-11-30 04:46:13,021 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 12 remaining) [2023-11-30 04:46:13,021 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 12 remaining) [2023-11-30 04:46:13,021 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 12 remaining) [2023-11-30 04:46:13,021 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 12 remaining) [2023-11-30 04:46:13,021 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 12 remaining) [2023-11-30 04:46:13,022 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 12 remaining) [2023-11-30 04:46:13,022 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 12 remaining) [2023-11-30 04:46:13,022 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2023-11-30 04:46:13,022 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-30 04:46:13,023 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 04:46:13,029 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 04:46:13,029 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 04:46:13,036 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 04:46:13 BasicIcfg [2023-11-30 04:46:13,036 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 04:46:13,037 INFO L158 Benchmark]: Toolchain (without parser) took 3881.35ms. Allocated memory was 419.4MB in the beginning and 620.8MB in the end (delta: 201.3MB). Free memory was 380.8MB in the beginning and 378.1MB in the end (delta: 2.7MB). Peak memory consumption was 205.9MB. Max. memory is 16.0GB. [2023-11-30 04:46:13,037 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 419.4MB. Free memory is still 366.7MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 04:46:13,037 INFO L158 Benchmark]: CACSL2BoogieTranslator took 523.92ms. Allocated memory is still 419.4MB. Free memory was 380.4MB in the beginning and 356.1MB in the end (delta: 24.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-11-30 04:46:13,037 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.36ms. Allocated memory is still 419.4MB. Free memory was 356.1MB in the beginning and 353.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 04:46:13,037 INFO L158 Benchmark]: Boogie Preprocessor took 55.21ms. Allocated memory is still 419.4MB. Free memory was 353.6MB in the beginning and 351.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 04:46:13,038 INFO L158 Benchmark]: RCFGBuilder took 709.65ms. Allocated memory was 419.4MB in the beginning and 620.8MB in the end (delta: 201.3MB). Free memory was 351.5MB in the beginning and 577.5MB in the end (delta: -226.0MB). Peak memory consumption was 40.2MB. Max. memory is 16.0GB. [2023-11-30 04:46:13,038 INFO L158 Benchmark]: TraceAbstraction took 2530.13ms. Allocated memory is still 620.8MB. Free memory was 576.5MB in the beginning and 378.1MB in the end (delta: 198.4MB). Peak memory consumption was 199.2MB. Max. memory is 16.0GB. [2023-11-30 04:46:13,039 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 419.4MB. Free memory is still 366.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 523.92ms. Allocated memory is still 419.4MB. Free memory was 380.4MB in the beginning and 356.1MB in the end (delta: 24.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 56.36ms. Allocated memory is still 419.4MB. Free memory was 356.1MB in the beginning and 353.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 55.21ms. Allocated memory is still 419.4MB. Free memory was 353.6MB in the beginning and 351.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 709.65ms. Allocated memory was 419.4MB in the beginning and 620.8MB in the end (delta: 201.3MB). Free memory was 351.5MB in the beginning and 577.5MB in the end (delta: -226.0MB). Peak memory consumption was 40.2MB. Max. memory is 16.0GB. * TraceAbstraction took 2530.13ms. Allocated memory is still 620.8MB. Free memory was 576.5MB in the beginning and 378.1MB in the end (delta: 198.4MB). Peak memory consumption was 199.2MB. 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, 181 locations, 12 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.4s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 72 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 72 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 194 IncrementalHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 60 mSDtfsCounter, 194 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=617occurred in iteration=8, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 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 04:46:13,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...