/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.pointer.base.address.is.valid.at.dereference ASSERTandASSUME --cacsl2boogietranslator.pointer.to.allocated.memory.at.dereference ASSERTandASSUME --cacsl2boogietranslator.check.array.bounds.for.arrays.that.are.off.heap ASSERTandASSUME --cacsl2boogietranslator.check.if.freed.pointer.was.valid true --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true -i ../../../trunk/examples/svcomp/pthread-wmm/mix014_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-6bf5761-m [2023-12-05 21:06:52,127 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-05 21:06:52,187 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-12-05 21:06:52,215 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-05 21:06:52,216 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-05 21:06:52,216 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-05 21:06:52,217 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-05 21:06:52,217 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-05 21:06:52,218 INFO L153 SettingsManager]: * Use SBE=true [2023-12-05 21:06:52,221 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-05 21:06:52,221 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-05 21:06:52,222 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-05 21:06:52,222 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-05 21:06:52,223 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-05 21:06:52,223 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-05 21:06:52,223 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-05 21:06:52,223 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-05 21:06:52,223 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-05 21:06:52,223 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-05 21:06:52,224 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-05 21:06:52,224 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-05 21:06:52,225 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-05 21:06:52,225 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-05 21:06:52,225 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-05 21:06:52,225 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-05 21:06:52,225 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-05 21:06:52,225 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-05 21:06:52,225 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-05 21:06:52,226 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-05 21:06:52,226 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-05 21:06:52,227 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-05 21:06:52,227 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-05 21:06:52,227 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-05 21:06:52,227 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer base address is valid at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer to allocated memory at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check array bounds for arrays that are off heap -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check if freed pointer was valid -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2023-12-05 21:06:52,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-05 21:06:52,441 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-05 21:06:52,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-05 21:06:52,443 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-05 21:06:52,443 INFO L274 PluginConnector]: CDTParser initialized [2023-12-05 21:06:52,444 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix014_tso.oepc.i [2023-12-05 21:06:53,553 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-05 21:06:53,803 INFO L384 CDTParser]: Found 1 translation units. [2023-12-05 21:06:53,804 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix014_tso.oepc.i [2023-12-05 21:06:53,827 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e78f632ef/8a602f8be94d44fcb29fde3f2c70a2ad/FLAG9e897dda6 [2023-12-05 21:06:53,837 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e78f632ef/8a602f8be94d44fcb29fde3f2c70a2ad [2023-12-05 21:06:53,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-05 21:06:53,839 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-05 21:06:53,840 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-05 21:06:53,840 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-05 21:06:53,843 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-05 21:06:53,844 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:06:53" (1/1) ... [2023-12-05 21:06:53,845 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f30a19b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:06:53, skipping insertion in model container [2023-12-05 21:06:53,846 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:06:53" (1/1) ... [2023-12-05 21:06:53,891 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-05 21:06:54,213 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-05 21:06:54,232 INFO L202 MainTranslator]: Completed pre-run [2023-12-05 21:06:54,276 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-05 21:06:54,310 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-05 21:06:54,310 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-05 21:06:54,315 INFO L206 MainTranslator]: Completed translation [2023-12-05 21:06:54,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:06:54 WrapperNode [2023-12-05 21:06:54,315 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-05 21:06:54,316 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-05 21:06:54,316 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-05 21:06:54,317 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-05 21:06:54,322 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:06:54" (1/1) ... [2023-12-05 21:06:54,341 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:06:54" (1/1) ... [2023-12-05 21:06:54,377 INFO L138 Inliner]: procedures = 177, calls = 73, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 271 [2023-12-05 21:06:54,377 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-05 21:06:54,378 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-05 21:06:54,378 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-05 21:06:54,378 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-05 21:06:54,384 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:06:54" (1/1) ... [2023-12-05 21:06:54,385 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:06:54" (1/1) ... [2023-12-05 21:06:54,388 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:06:54" (1/1) ... [2023-12-05 21:06:54,388 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:06:54" (1/1) ... [2023-12-05 21:06:54,395 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:06:54" (1/1) ... [2023-12-05 21:06:54,397 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:06:54" (1/1) ... [2023-12-05 21:06:54,399 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:06:54" (1/1) ... [2023-12-05 21:06:54,400 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:06:54" (1/1) ... [2023-12-05 21:06:54,404 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-05 21:06:54,404 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-05 21:06:54,404 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-05 21:06:54,404 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-05 21:06:54,405 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:06:54" (1/1) ... [2023-12-05 21:06:54,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-05 21:06:54,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-05 21:06:54,457 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-05 21:06:54,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-05 21:06:54,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-05 21:06:54,484 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-05 21:06:54,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-05 21:06:54,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-05 21:06:54,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-05 21:06:54,485 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-12-05 21:06:54,485 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-12-05 21:06:54,485 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-12-05 21:06:54,486 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-12-05 21:06:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-12-05 21:06:54,486 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-12-05 21:06:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-12-05 21:06:54,486 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-12-05 21:06:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-05 21:06:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-05 21:06:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-05 21:06:54,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-05 21:06:54,487 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-05 21:06:54,588 INFO L241 CfgBuilder]: Building ICFG [2023-12-05 21:06:54,590 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-05 21:06:55,078 INFO L282 CfgBuilder]: Performing block encoding [2023-12-05 21:06:55,235 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-05 21:06:55,235 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-05 21:06:55,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:06:55 BoogieIcfgContainer [2023-12-05 21:06:55,237 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-05 21:06:55,239 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-05 21:06:55,239 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-05 21:06:55,241 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-05 21:06:55,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 09:06:53" (1/3) ... [2023-12-05 21:06:55,242 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@294d3613 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:06:55, skipping insertion in model container [2023-12-05 21:06:55,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:06:54" (2/3) ... [2023-12-05 21:06:55,243 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@294d3613 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:06:55, skipping insertion in model container [2023-12-05 21:06:55,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:06:55" (3/3) ... [2023-12-05 21:06:55,244 INFO L112 eAbstractionObserver]: Analyzing ICFG mix014_tso.oepc.i [2023-12-05 21:06:55,257 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-05 21:06:55,257 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-12-05 21:06:55,258 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-05 21:06:55,325 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-05 21:06:55,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 175 places, 165 transitions, 346 flow [2023-12-05 21:06:55,427 INFO L124 PetriNetUnfolderBase]: 3/161 cut-off events. [2023-12-05 21:06:55,429 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-05 21:06:55,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 161 events. 3/161 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 119 event pairs, 0 based on Foata normal form. 0/150 useless extension candidates. Maximal degree in co-relation 102. Up to 2 conditions per place. [2023-12-05 21:06:55,433 INFO L82 GeneralOperation]: Start removeDead. Operand has 175 places, 165 transitions, 346 flow [2023-12-05 21:06:55,440 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 112 transitions, 233 flow [2023-12-05 21:06:55,453 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-05 21:06:55,462 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;@6fcbb8d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-05 21:06:55,462 INFO L363 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-12-05 21:06:55,474 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-05 21:06:55,474 INFO L124 PetriNetUnfolderBase]: 0/62 cut-off events. [2023-12-05 21:06:55,474 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-05 21:06:55,475 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:06:55,475 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:06:55,475 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-12-05 21:06:55,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:06:55,479 INFO L85 PathProgramCache]: Analyzing trace with hash 391053360, now seen corresponding path program 1 times [2023-12-05 21:06:55,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:06:55,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420289464] [2023-12-05 21:06:55,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:06:55,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:06:55,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:06:55,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:06:55,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:06:55,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420289464] [2023-12-05 21:06:55,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420289464] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:06:55,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:06:55,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:06:55,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572240477] [2023-12-05 21:06:55,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:06:55,809 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:06:55,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:06:55,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:06:55,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:06:55,837 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 165 [2023-12-05 21:06:55,841 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 112 transitions, 233 flow. Second operand has 3 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:55,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:06:55,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 165 [2023-12-05 21:06:55,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:06:56,071 INFO L124 PetriNetUnfolderBase]: 204/635 cut-off events. [2023-12-05 21:06:56,072 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-12-05 21:06:56,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1015 conditions, 635 events. 204/635 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 3557 event pairs, 204 based on Foata normal form. 0/600 useless extension candidates. Maximal degree in co-relation 936. Up to 345 conditions per place. [2023-12-05 21:06:56,081 INFO L140 encePairwiseOnDemand]: 163/165 looper letters, 24 selfloop transitions, 1 changer transitions 0/111 dead transitions. [2023-12-05 21:06:56,081 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 111 transitions, 281 flow [2023-12-05 21:06:56,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:06:56,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:06:56,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 398 transitions. [2023-12-05 21:06:56,095 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.804040404040404 [2023-12-05 21:06:56,096 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 398 transitions. [2023-12-05 21:06:56,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 398 transitions. [2023-12-05 21:06:56,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:06:56,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 398 transitions. [2023-12-05 21:06:56,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:56,109 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:56,110 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:56,113 INFO L308 CegarLoopForPetriNet]: 122 programPoint places, 1 predicate places. [2023-12-05 21:06:56,113 INFO L500 AbstractCegarLoop]: Abstraction has has 123 places, 111 transitions, 281 flow [2023-12-05 21:06:56,113 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:56,113 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:06:56,114 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:06:56,114 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-05 21:06:56,114 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-12-05 21:06:56,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:06:56,115 INFO L85 PathProgramCache]: Analyzing trace with hash 391053361, now seen corresponding path program 1 times [2023-12-05 21:06:56,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:06:56,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071489021] [2023-12-05 21:06:56,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:06:56,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:06:56,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:06:56,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:06:56,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:06:56,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071489021] [2023-12-05 21:06:56,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071489021] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:06:56,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:06:56,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:06:56,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483422678] [2023-12-05 21:06:56,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:06:56,297 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:06:56,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:06:56,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:06:56,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:06:56,298 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 165 [2023-12-05 21:06:56,298 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 111 transitions, 281 flow. Second operand has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:56,298 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:06:56,298 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 165 [2023-12-05 21:06:56,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:06:56,443 INFO L124 PetriNetUnfolderBase]: 277/781 cut-off events. [2023-12-05 21:06:56,443 INFO L125 PetriNetUnfolderBase]: For 148/172 co-relation queries the response was YES. [2023-12-05 21:06:56,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1654 conditions, 781 events. 277/781 cut-off events. For 148/172 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 4655 event pairs, 277 based on Foata normal form. 0/745 useless extension candidates. Maximal degree in co-relation 1570. Up to 417 conditions per place. [2023-12-05 21:06:56,449 INFO L140 encePairwiseOnDemand]: 163/165 looper letters, 22 selfloop transitions, 1 changer transitions 0/110 dead transitions. [2023-12-05 21:06:56,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 110 transitions, 323 flow [2023-12-05 21:06:56,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:06:56,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:06:56,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 408 transitions. [2023-12-05 21:06:56,451 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8242424242424242 [2023-12-05 21:06:56,451 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 408 transitions. [2023-12-05 21:06:56,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 408 transitions. [2023-12-05 21:06:56,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:06:56,452 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 408 transitions. [2023-12-05 21:06:56,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:56,454 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:56,454 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:56,455 INFO L308 CegarLoopForPetriNet]: 122 programPoint places, 2 predicate places. [2023-12-05 21:06:56,455 INFO L500 AbstractCegarLoop]: Abstraction has has 124 places, 110 transitions, 323 flow [2023-12-05 21:06:56,456 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:56,456 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:06:56,456 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:06:56,456 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-05 21:06:56,456 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)] === [2023-12-05 21:06:56,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:06:56,457 INFO L85 PathProgramCache]: Analyzing trace with hash 2146525381, now seen corresponding path program 1 times [2023-12-05 21:06:56,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:06:56,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394695986] [2023-12-05 21:06:56,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:06:56,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:06:56,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:06:56,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:06:56,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:06:56,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394695986] [2023-12-05 21:06:56,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394695986] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:06:56,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:06:56,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:06:56,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602191031] [2023-12-05 21:06:56,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:06:56,579 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:06:56,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:06:56,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:06:56,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:06:56,582 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 165 [2023-12-05 21:06:56,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 110 transitions, 323 flow. Second operand has 3 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:56,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:06:56,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 165 [2023-12-05 21:06:56,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:06:56,780 INFO L124 PetriNetUnfolderBase]: 276/778 cut-off events. [2023-12-05 21:06:56,780 INFO L125 PetriNetUnfolderBase]: For 399/471 co-relation queries the response was YES. [2023-12-05 21:06:56,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2067 conditions, 778 events. 276/778 cut-off events. For 399/471 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 4649 event pairs, 188 based on Foata normal form. 2/744 useless extension candidates. Maximal degree in co-relation 1976. Up to 416 conditions per place. [2023-12-05 21:06:56,787 INFO L140 encePairwiseOnDemand]: 163/165 looper letters, 23 selfloop transitions, 1 changer transitions 0/110 dead transitions. [2023-12-05 21:06:56,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 110 transitions, 373 flow [2023-12-05 21:06:56,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:06:56,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:06:56,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 409 transitions. [2023-12-05 21:06:56,790 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8262626262626263 [2023-12-05 21:06:56,790 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 409 transitions. [2023-12-05 21:06:56,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 409 transitions. [2023-12-05 21:06:56,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:06:56,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 409 transitions. [2023-12-05 21:06:56,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:56,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:56,792 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:56,794 INFO L308 CegarLoopForPetriNet]: 122 programPoint places, 3 predicate places. [2023-12-05 21:06:56,794 INFO L500 AbstractCegarLoop]: Abstraction has has 125 places, 110 transitions, 373 flow [2023-12-05 21:06:56,794 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:56,794 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:06:56,794 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:06:56,795 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-05 21:06:56,796 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)] === [2023-12-05 21:06:56,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:06:56,796 INFO L85 PathProgramCache]: Analyzing trace with hash 2146525380, now seen corresponding path program 1 times [2023-12-05 21:06:56,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:06:56,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549605534] [2023-12-05 21:06:56,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:06:56,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:06:56,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:06:56,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:06:56,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:06:56,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549605534] [2023-12-05 21:06:56,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549605534] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:06:56,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:06:56,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:06:56,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966406593] [2023-12-05 21:06:56,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:06:56,870 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:06:56,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:06:56,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:06:56,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:06:56,875 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 165 [2023-12-05 21:06:56,875 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 110 transitions, 373 flow. Second operand has 3 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:56,875 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:06:56,875 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 165 [2023-12-05 21:06:56,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:06:57,069 INFO L124 PetriNetUnfolderBase]: 275/775 cut-off events. [2023-12-05 21:06:57,070 INFO L125 PetriNetUnfolderBase]: For 734/854 co-relation queries the response was YES. [2023-12-05 21:06:57,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2475 conditions, 775 events. 275/775 cut-off events. For 734/854 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 4611 event pairs, 188 based on Foata normal form. 2/741 useless extension candidates. Maximal degree in co-relation 2376. Up to 413 conditions per place. [2023-12-05 21:06:57,076 INFO L140 encePairwiseOnDemand]: 163/165 looper letters, 23 selfloop transitions, 1 changer transitions 0/109 dead transitions. [2023-12-05 21:06:57,076 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 109 transitions, 415 flow [2023-12-05 21:06:57,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:06:57,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:06:57,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2023-12-05 21:06:57,078 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.802020202020202 [2023-12-05 21:06:57,078 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 397 transitions. [2023-12-05 21:06:57,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 397 transitions. [2023-12-05 21:06:57,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:06:57,078 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 397 transitions. [2023-12-05 21:06:57,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:57,080 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:57,080 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:57,082 INFO L308 CegarLoopForPetriNet]: 122 programPoint places, 4 predicate places. [2023-12-05 21:06:57,082 INFO L500 AbstractCegarLoop]: Abstraction has has 126 places, 109 transitions, 415 flow [2023-12-05 21:06:57,082 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:57,082 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:06:57,082 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:06:57,082 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-05 21:06:57,083 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-12-05 21:06:57,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:06:57,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1112478199, now seen corresponding path program 1 times [2023-12-05 21:06:57,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:06:57,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611477327] [2023-12-05 21:06:57,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:06:57,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:06:57,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:06:57,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:06:57,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:06:57,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611477327] [2023-12-05 21:06:57,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611477327] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:06:57,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:06:57,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:06:57,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178193549] [2023-12-05 21:06:57,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:06:57,152 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:06:57,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:06:57,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:06:57,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:06:57,153 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 165 [2023-12-05 21:06:57,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 109 transitions, 415 flow. Second operand has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:57,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:06:57,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 165 [2023-12-05 21:06:57,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:06:57,301 INFO L124 PetriNetUnfolderBase]: 262/744 cut-off events. [2023-12-05 21:06:57,302 INFO L125 PetriNetUnfolderBase]: For 1306/1446 co-relation queries the response was YES. [2023-12-05 21:06:57,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2777 conditions, 744 events. 262/744 cut-off events. For 1306/1446 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4246 event pairs, 60 based on Foata normal form. 10/724 useless extension candidates. Maximal degree in co-relation 2670. Up to 400 conditions per place. [2023-12-05 21:06:57,308 INFO L140 encePairwiseOnDemand]: 163/165 looper letters, 28 selfloop transitions, 1 changer transitions 0/113 dead transitions. [2023-12-05 21:06:57,308 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 113 transitions, 517 flow [2023-12-05 21:06:57,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:06:57,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:06:57,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 401 transitions. [2023-12-05 21:06:57,310 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8101010101010101 [2023-12-05 21:06:57,310 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 401 transitions. [2023-12-05 21:06:57,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 401 transitions. [2023-12-05 21:06:57,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:06:57,310 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 401 transitions. [2023-12-05 21:06:57,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 133.66666666666666) internal successors, (401), 3 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:57,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:57,312 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:57,313 INFO L308 CegarLoopForPetriNet]: 122 programPoint places, 5 predicate places. [2023-12-05 21:06:57,314 INFO L500 AbstractCegarLoop]: Abstraction has has 127 places, 113 transitions, 517 flow [2023-12-05 21:06:57,314 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:57,314 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:06:57,314 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:06:57,315 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-05 21:06:57,317 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-12-05 21:06:57,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:06:57,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1112478200, now seen corresponding path program 1 times [2023-12-05 21:06:57,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:06:57,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076298685] [2023-12-05 21:06:57,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:06:57,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:06:57,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:06:57,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:06:57,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:06:57,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076298685] [2023-12-05 21:06:57,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076298685] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:06:57,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:06:57,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:06:57,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072214875] [2023-12-05 21:06:57,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:06:57,391 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:06:57,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:06:57,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:06:57,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:06:57,392 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 165 [2023-12-05 21:06:57,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 113 transitions, 517 flow. Second operand has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:57,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:06:57,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 165 [2023-12-05 21:06:57,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:06:57,514 INFO L124 PetriNetUnfolderBase]: 249/721 cut-off events. [2023-12-05 21:06:57,514 INFO L125 PetriNetUnfolderBase]: For 1836/2016 co-relation queries the response was YES. [2023-12-05 21:06:57,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3040 conditions, 721 events. 249/721 cut-off events. For 1836/2016 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4094 event pairs, 60 based on Foata normal form. 10/701 useless extension candidates. Maximal degree in co-relation 2926. Up to 377 conditions per place. [2023-12-05 21:06:57,521 INFO L140 encePairwiseOnDemand]: 163/165 looper letters, 26 selfloop transitions, 1 changer transitions 0/112 dead transitions. [2023-12-05 21:06:57,521 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 112 transitions, 563 flow [2023-12-05 21:06:57,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:06:57,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:06:57,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 411 transitions. [2023-12-05 21:06:57,522 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8303030303030303 [2023-12-05 21:06:57,522 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 411 transitions. [2023-12-05 21:06:57,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 411 transitions. [2023-12-05 21:06:57,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:06:57,523 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 411 transitions. [2023-12-05 21:06:57,523 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:57,524 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:57,524 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:57,525 INFO L308 CegarLoopForPetriNet]: 122 programPoint places, 6 predicate places. [2023-12-05 21:06:57,525 INFO L500 AbstractCegarLoop]: Abstraction has has 128 places, 112 transitions, 563 flow [2023-12-05 21:06:57,525 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:57,525 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:06:57,526 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:06:57,526 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-05 21:06:57,526 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-12-05 21:06:57,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:06:57,526 INFO L85 PathProgramCache]: Analyzing trace with hash -407369304, now seen corresponding path program 1 times [2023-12-05 21:06:57,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:06:57,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279268303] [2023-12-05 21:06:57,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:06:57,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:06:57,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:06:57,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:06:57,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:06:57,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279268303] [2023-12-05 21:06:57,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279268303] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:06:57,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:06:57,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:06:57,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776761601] [2023-12-05 21:06:57,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:06:57,603 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:06:57,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:06:57,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:06:57,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:06:57,604 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 165 [2023-12-05 21:06:57,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 112 transitions, 563 flow. Second operand has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:57,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:06:57,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 165 [2023-12-05 21:06:57,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:06:57,699 INFO L124 PetriNetUnfolderBase]: 190/552 cut-off events. [2023-12-05 21:06:57,699 INFO L125 PetriNetUnfolderBase]: For 2016/2136 co-relation queries the response was YES. [2023-12-05 21:06:57,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2749 conditions, 552 events. 190/552 cut-off events. For 2016/2136 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2803 event pairs, 0 based on Foata normal form. 30/572 useless extension candidates. Maximal degree in co-relation 2628. Up to 318 conditions per place. [2023-12-05 21:06:57,703 INFO L140 encePairwiseOnDemand]: 163/165 looper letters, 33 selfloop transitions, 1 changer transitions 0/118 dead transitions. [2023-12-05 21:06:57,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 118 transitions, 721 flow [2023-12-05 21:06:57,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:06:57,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:06:57,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 413 transitions. [2023-12-05 21:06:57,705 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8343434343434344 [2023-12-05 21:06:57,705 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 413 transitions. [2023-12-05 21:06:57,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 413 transitions. [2023-12-05 21:06:57,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:06:57,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 413 transitions. [2023-12-05 21:06:57,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:57,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:57,707 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:57,707 INFO L308 CegarLoopForPetriNet]: 122 programPoint places, 7 predicate places. [2023-12-05 21:06:57,707 INFO L500 AbstractCegarLoop]: Abstraction has has 129 places, 118 transitions, 721 flow [2023-12-05 21:06:57,708 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:57,708 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:06:57,708 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:06:57,708 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-05 21:06:57,708 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-12-05 21:06:57,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:06:57,708 INFO L85 PathProgramCache]: Analyzing trace with hash -407369305, now seen corresponding path program 1 times [2023-12-05 21:06:57,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:06:57,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818432313] [2023-12-05 21:06:57,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:06:57,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:06:57,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:06:57,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:06:57,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:06:57,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818432313] [2023-12-05 21:06:57,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818432313] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:06:57,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:06:57,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:06:57,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500407499] [2023-12-05 21:06:57,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:06:57,746 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:06:57,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:06:57,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:06:57,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:06:57,747 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 165 [2023-12-05 21:06:57,747 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 118 transitions, 721 flow. Second operand has 3 states, 3 states have (on average 129.0) internal successors, (387), 3 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:57,747 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:06:57,747 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 165 [2023-12-05 21:06:57,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:06:57,831 INFO L124 PetriNetUnfolderBase]: 131/463 cut-off events. [2023-12-05 21:06:57,831 INFO L125 PetriNetUnfolderBase]: For 2036/2176 co-relation queries the response was YES. [2023-12-05 21:06:57,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2361 conditions, 463 events. 131/463 cut-off events. For 2036/2176 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2286 event pairs, 0 based on Foata normal form. 30/483 useless extension candidates. Maximal degree in co-relation 2232. Up to 229 conditions per place. [2023-12-05 21:06:57,833 INFO L140 encePairwiseOnDemand]: 163/165 looper letters, 0 selfloop transitions, 0 changer transitions 117/117 dead transitions. [2023-12-05 21:06:57,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 117 transitions, 779 flow [2023-12-05 21:06:57,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:06:57,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:06:57,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 401 transitions. [2023-12-05 21:06:57,834 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8101010101010101 [2023-12-05 21:06:57,834 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 401 transitions. [2023-12-05 21:06:57,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 401 transitions. [2023-12-05 21:06:57,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:06:57,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 401 transitions. [2023-12-05 21:06:57,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 133.66666666666666) internal successors, (401), 3 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:57,836 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:57,836 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:57,837 INFO L308 CegarLoopForPetriNet]: 122 programPoint places, 8 predicate places. [2023-12-05 21:06:57,837 INFO L500 AbstractCegarLoop]: Abstraction has has 130 places, 117 transitions, 779 flow [2023-12-05 21:06:57,837 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.0) internal successors, (387), 3 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:06:57,843 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mix014_tso.oepc.i_BEv2_AllErrorsAtOnce [2023-12-05 21:06:57,861 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 12 remaining) [2023-12-05 21:06:57,861 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 12 remaining) [2023-12-05 21:06:57,861 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 12 remaining) [2023-12-05 21:06:57,861 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 12 remaining) [2023-12-05 21:06:57,861 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 12 remaining) [2023-12-05 21:06:57,861 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 12 remaining) [2023-12-05 21:06:57,861 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 12 remaining) [2023-12-05 21:06:57,862 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 12 remaining) [2023-12-05 21:06:57,862 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 12 remaining) [2023-12-05 21:06:57,862 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 12 remaining) [2023-12-05 21:06:57,862 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 12 remaining) [2023-12-05 21:06:57,862 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2023-12-05 21:06:57,862 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-05 21:06:57,862 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:06:57,864 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-05 21:06:57,864 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-05 21:06:57,873 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 09:06:57 BasicIcfg [2023-12-05 21:06:57,874 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-05 21:06:57,874 INFO L158 Benchmark]: Toolchain (without parser) took 4034.77ms. Allocated memory was 278.9MB in the beginning and 359.7MB in the end (delta: 80.7MB). Free memory was 223.0MB in the beginning and 150.3MB in the end (delta: 72.8MB). Peak memory consumption was 153.8MB. Max. memory is 8.0GB. [2023-12-05 21:06:57,874 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 183.5MB. Free memory is still 133.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-05 21:06:57,874 INFO L158 Benchmark]: CACSL2BoogieTranslator took 475.68ms. Allocated memory is still 278.9MB. Free memory was 222.8MB in the beginning and 194.6MB in the end (delta: 28.2MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2023-12-05 21:06:57,875 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.15ms. Allocated memory is still 278.9MB. Free memory was 194.6MB in the beginning and 242.0MB in the end (delta: -47.4MB). Peak memory consumption was 6.5MB. Max. memory is 8.0GB. [2023-12-05 21:06:57,875 INFO L158 Benchmark]: Boogie Preprocessor took 25.82ms. Allocated memory is still 278.9MB. Free memory was 242.0MB in the beginning and 239.3MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-05 21:06:57,875 INFO L158 Benchmark]: RCFGBuilder took 832.40ms. Allocated memory is still 278.9MB. Free memory was 239.3MB in the beginning and 164.9MB in the end (delta: 74.4MB). Peak memory consumption was 74.4MB. Max. memory is 8.0GB. [2023-12-05 21:06:57,875 INFO L158 Benchmark]: TraceAbstraction took 2634.86ms. Allocated memory was 278.9MB in the beginning and 359.7MB in the end (delta: 80.7MB). Free memory was 164.4MB in the beginning and 150.3MB in the end (delta: 14.1MB). Peak memory consumption was 94.9MB. Max. memory is 8.0GB. [2023-12-05 21:06:57,876 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 183.5MB. Free memory is still 133.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 475.68ms. Allocated memory is still 278.9MB. Free memory was 222.8MB in the beginning and 194.6MB in the end (delta: 28.2MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 61.15ms. Allocated memory is still 278.9MB. Free memory was 194.6MB in the beginning and 242.0MB in the end (delta: -47.4MB). Peak memory consumption was 6.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.82ms. Allocated memory is still 278.9MB. Free memory was 242.0MB in the beginning and 239.3MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 832.40ms. Allocated memory is still 278.9MB. Free memory was 239.3MB in the beginning and 164.9MB in the end (delta: 74.4MB). Peak memory consumption was 74.4MB. Max. memory is 8.0GB. * TraceAbstraction took 2634.86ms. Allocated memory was 278.9MB in the beginning and 359.7MB in the end (delta: 80.7MB). Free memory was 164.4MB in the beginning and 150.3MB in the end (delta: 14.1MB). Peak memory consumption was 94.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 201 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: 2.5s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 96 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 96 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 236 IncrementalHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 60 mSDtfsCounter, 236 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=779occurred in iteration=8, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 580 NumberOfCodeBlocks, 580 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 572 ConstructedInterpolants, 0 QuantifiedInterpolants, 716 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-12-05 21:06:57,895 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...