/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/rfi009_power.opt_pso.oepc_pso.opt_rmo.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-6bf5761-m [2023-12-05 21:08:25,324 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-05 21:08:25,370 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 21:08:25,392 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-05 21:08:25,393 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-05 21:08:25,393 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-05 21:08:25,393 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-05 21:08:25,393 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-05 21:08:25,394 INFO L153 SettingsManager]: * Use SBE=true [2023-12-05 21:08:25,394 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-05 21:08:25,394 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-05 21:08:25,395 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-05 21:08:25,395 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-05 21:08:25,395 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-05 21:08:25,395 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-05 21:08:25,396 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-05 21:08:25,396 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-05 21:08:25,396 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-05 21:08:25,396 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-05 21:08:25,396 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-05 21:08:25,397 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-05 21:08:25,397 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-05 21:08:25,397 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-05 21:08:25,397 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-05 21:08:25,398 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-05 21:08:25,398 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-05 21:08:25,398 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-05 21:08:25,398 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-05 21:08:25,398 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-05 21:08:25,398 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-05 21:08:25,399 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-05 21:08:25,399 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-05 21:08:25,399 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-05 21:08:25,399 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer base address is valid at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer to allocated memory at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check array bounds for arrays that are off heap -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check if freed pointer was valid -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2023-12-05 21:08:25,601 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-05 21:08:25,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-05 21:08:25,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-05 21:08:25,635 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-05 21:08:25,635 INFO L274 PluginConnector]: CDTParser initialized [2023-12-05 21:08:25,636 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi009_power.opt_pso.oepc_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2023-12-05 21:08:26,685 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-05 21:08:26,895 INFO L384 CDTParser]: Found 1 translation units. [2023-12-05 21:08:26,896 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi009_power.opt_pso.oepc_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2023-12-05 21:08:26,912 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e09589e3b/5d5c04d5a4fe4a93bd9704393b43b39a/FLAGa0cc4a98a [2023-12-05 21:08:26,930 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e09589e3b/5d5c04d5a4fe4a93bd9704393b43b39a [2023-12-05 21:08:26,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-05 21:08:26,934 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-05 21:08:26,935 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-05 21:08:26,935 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-05 21:08:26,938 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-05 21:08:26,938 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:08:26" (1/1) ... [2023-12-05 21:08:26,939 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24a35385 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:26, skipping insertion in model container [2023-12-05 21:08:26,939 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:08:26" (1/1) ... [2023-12-05 21:08:26,967 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-05 21:08:27,238 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-05 21:08:27,247 INFO L202 MainTranslator]: Completed pre-run [2023-12-05 21:08:27,308 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-05 21:08:27,337 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-05 21:08:27,337 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-05 21:08:27,349 INFO L206 MainTranslator]: Completed translation [2023-12-05 21:08:27,350 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:27 WrapperNode [2023-12-05 21:08:27,350 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-05 21:08:27,351 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-05 21:08:27,351 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-05 21:08:27,351 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-05 21:08:27,356 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:27" (1/1) ... [2023-12-05 21:08:27,381 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:27" (1/1) ... [2023-12-05 21:08:27,411 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 154 [2023-12-05 21:08:27,412 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-05 21:08:27,413 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-05 21:08:27,413 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-05 21:08:27,413 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-05 21:08:27,421 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:27" (1/1) ... [2023-12-05 21:08:27,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:27" (1/1) ... [2023-12-05 21:08:27,430 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:27" (1/1) ... [2023-12-05 21:08:27,430 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:27" (1/1) ... [2023-12-05 21:08:27,436 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:27" (1/1) ... [2023-12-05 21:08:27,438 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:27" (1/1) ... [2023-12-05 21:08:27,439 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:27" (1/1) ... [2023-12-05 21:08:27,457 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:27" (1/1) ... [2023-12-05 21:08:27,460 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-05 21:08:27,460 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-05 21:08:27,461 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-05 21:08:27,461 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-05 21:08:27,461 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:27" (1/1) ... [2023-12-05 21:08:27,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-05 21:08:27,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-05 21:08:27,494 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 21:08:27,499 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 21:08:27,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-05 21:08:27,516 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-05 21:08:27,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-05 21:08:27,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-05 21:08:27,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-05 21:08:27,516 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-12-05 21:08:27,517 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-12-05 21:08:27,517 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-12-05 21:08:27,517 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-12-05 21:08:27,517 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-12-05 21:08:27,517 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-12-05 21:08:27,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-05 21:08:27,518 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-05 21:08:27,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-05 21:08:27,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-05 21:08:27,519 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 21:08:27,635 INFO L241 CfgBuilder]: Building ICFG [2023-12-05 21:08:27,637 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-05 21:08:27,996 INFO L282 CfgBuilder]: Performing block encoding [2023-12-05 21:08:28,111 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-05 21:08:28,112 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-05 21:08:28,114 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:08:28 BoogieIcfgContainer [2023-12-05 21:08:28,114 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-05 21:08:28,117 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-05 21:08:28,117 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-05 21:08:28,119 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-05 21:08:28,119 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 09:08:26" (1/3) ... [2023-12-05 21:08:28,120 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4764e3ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:08:28, skipping insertion in model container [2023-12-05 21:08:28,120 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:08:27" (2/3) ... [2023-12-05 21:08:28,120 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4764e3ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:08:28, skipping insertion in model container [2023-12-05 21:08:28,120 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:08:28" (3/3) ... [2023-12-05 21:08:28,121 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi009_power.opt_pso.oepc_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2023-12-05 21:08:28,133 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-05 21:08:28,133 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-12-05 21:08:28,133 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-05 21:08:28,176 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-05 21:08:28,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 121 transitions, 254 flow [2023-12-05 21:08:28,243 INFO L124 PetriNetUnfolderBase]: 3/118 cut-off events. [2023-12-05 21:08:28,243 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-05 21:08:28,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 118 events. 3/118 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 89 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 80. Up to 2 conditions per place. [2023-12-05 21:08:28,249 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 121 transitions, 254 flow [2023-12-05 21:08:28,252 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 73 transitions, 152 flow [2023-12-05 21:08:28,263 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-05 21:08:28,268 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;@33a9d766, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-05 21:08:28,268 INFO L363 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-12-05 21:08:28,284 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-05 21:08:28,284 INFO L124 PetriNetUnfolderBase]: 0/39 cut-off events. [2023-12-05 21:08:28,285 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-05 21:08:28,285 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:08:28,285 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] [2023-12-05 21:08:28,286 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] === [2023-12-05 21:08:28,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:08:28,291 INFO L85 PathProgramCache]: Analyzing trace with hash -651394856, now seen corresponding path program 1 times [2023-12-05 21:08:28,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:08:28,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235077133] [2023-12-05 21:08:28,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:08:28,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:08:28,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:08:28,531 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 21:08:28,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:08:28,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235077133] [2023-12-05 21:08:28,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235077133] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:08:28,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:08:28,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:08:28,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275608698] [2023-12-05 21:08:28,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:08:28,539 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:08:28,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:08:28,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:08:28,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:08:28,566 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 121 [2023-12-05 21:08:28,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 73 transitions, 152 flow. Second operand has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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 21:08:28,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:08:28,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 121 [2023-12-05 21:08:28,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:08:28,656 INFO L124 PetriNetUnfolderBase]: 27/158 cut-off events. [2023-12-05 21:08:28,657 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-12-05 21:08:28,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 234 conditions, 158 events. 27/158 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 482 event pairs, 27 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 179. Up to 62 conditions per place. [2023-12-05 21:08:28,660 INFO L140 encePairwiseOnDemand]: 119/121 looper letters, 17 selfloop transitions, 1 changer transitions 0/72 dead transitions. [2023-12-05 21:08:28,660 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 72 transitions, 186 flow [2023-12-05 21:08:28,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:08:28,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:08:28,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2023-12-05 21:08:28,688 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7878787878787878 [2023-12-05 21:08:28,688 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 286 transitions. [2023-12-05 21:08:28,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 286 transitions. [2023-12-05 21:08:28,692 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:08:28,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 286 transitions. [2023-12-05 21:08:28,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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 21:08:28,704 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:28,704 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:28,708 INFO L308 CegarLoopForPetriNet]: 80 programPoint places, 1 predicate places. [2023-12-05 21:08:28,709 INFO L500 AbstractCegarLoop]: Abstraction has has 81 places, 72 transitions, 186 flow [2023-12-05 21:08:28,709 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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 21:08:28,709 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:08:28,709 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] [2023-12-05 21:08:28,709 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-05 21:08:28,710 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] === [2023-12-05 21:08:28,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:08:28,711 INFO L85 PathProgramCache]: Analyzing trace with hash -651394855, now seen corresponding path program 1 times [2023-12-05 21:08:28,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:08:28,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938237324] [2023-12-05 21:08:28,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:08:28,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:08:28,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:08:28,826 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 21:08:28,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:08:28,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938237324] [2023-12-05 21:08:28,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938237324] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:08:28,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:08:28,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:08:28,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883216770] [2023-12-05 21:08:28,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:08:28,828 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:08:28,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:08:28,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:08:28,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:08:28,829 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 121 [2023-12-05 21:08:28,829 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 72 transitions, 186 flow. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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 21:08:28,829 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:08:28,829 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 121 [2023-12-05 21:08:28,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:08:28,901 INFO L124 PetriNetUnfolderBase]: 38/187 cut-off events. [2023-12-05 21:08:28,902 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2023-12-05 21:08:28,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 349 conditions, 187 events. 38/187 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 637 event pairs, 38 based on Foata normal form. 0/183 useless extension candidates. Maximal degree in co-relation 289. Up to 72 conditions per place. [2023-12-05 21:08:28,905 INFO L140 encePairwiseOnDemand]: 119/121 looper letters, 15 selfloop transitions, 1 changer transitions 0/71 dead transitions. [2023-12-05 21:08:28,905 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 71 transitions, 214 flow [2023-12-05 21:08:28,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:08:28,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:08:28,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 293 transitions. [2023-12-05 21:08:28,907 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8071625344352618 [2023-12-05 21:08:28,907 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 293 transitions. [2023-12-05 21:08:28,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 293 transitions. [2023-12-05 21:08:28,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:08:28,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 293 transitions. [2023-12-05 21:08:28,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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 21:08:28,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:28,911 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:28,911 INFO L308 CegarLoopForPetriNet]: 80 programPoint places, 2 predicate places. [2023-12-05 21:08:28,911 INFO L500 AbstractCegarLoop]: Abstraction has has 82 places, 71 transitions, 214 flow [2023-12-05 21:08:28,912 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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 21:08:28,912 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:08:28,912 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] [2023-12-05 21:08:28,912 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-05 21:08:28,912 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] === [2023-12-05 21:08:28,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:08:28,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1595696922, now seen corresponding path program 1 times [2023-12-05 21:08:28,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:08:28,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118754814] [2023-12-05 21:08:28,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:08:28,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:08:28,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:08:29,009 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 21:08:29,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:08:29,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118754814] [2023-12-05 21:08:29,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118754814] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:08:29,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:08:29,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:08:29,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131804816] [2023-12-05 21:08:29,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:08:29,015 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:08:29,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:08:29,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:08:29,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:08:29,017 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 121 [2023-12-05 21:08:29,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 71 transitions, 214 flow. Second operand has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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 21:08:29,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:08:29,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 121 [2023-12-05 21:08:29,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:08:29,078 INFO L124 PetriNetUnfolderBase]: 37/170 cut-off events. [2023-12-05 21:08:29,079 INFO L125 PetriNetUnfolderBase]: For 81/85 co-relation queries the response was YES. [2023-12-05 21:08:29,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 403 conditions, 170 events. 37/170 cut-off events. For 81/85 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 513 event pairs, 18 based on Foata normal form. 2/168 useless extension candidates. Maximal degree in co-relation 336. Up to 71 conditions per place. [2023-12-05 21:08:29,081 INFO L140 encePairwiseOnDemand]: 119/121 looper letters, 16 selfloop transitions, 1 changer transitions 0/71 dead transitions. [2023-12-05 21:08:29,082 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 71 transitions, 250 flow [2023-12-05 21:08:29,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:08:29,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:08:29,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 294 transitions. [2023-12-05 21:08:29,083 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8099173553719008 [2023-12-05 21:08:29,083 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 294 transitions. [2023-12-05 21:08:29,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 294 transitions. [2023-12-05 21:08:29,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:08:29,083 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 294 transitions. [2023-12-05 21:08:29,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 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 21:08:29,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:29,085 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:29,085 INFO L308 CegarLoopForPetriNet]: 80 programPoint places, 3 predicate places. [2023-12-05 21:08:29,085 INFO L500 AbstractCegarLoop]: Abstraction has has 83 places, 71 transitions, 250 flow [2023-12-05 21:08:29,086 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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 21:08:29,086 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:08:29,086 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] [2023-12-05 21:08:29,086 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-05 21:08:29,086 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] === [2023-12-05 21:08:29,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:08:29,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1595696921, now seen corresponding path program 1 times [2023-12-05 21:08:29,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:08:29,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092223388] [2023-12-05 21:08:29,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:08:29,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:08:29,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:08:29,120 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 21:08:29,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:08:29,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092223388] [2023-12-05 21:08:29,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092223388] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:08:29,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:08:29,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:08:29,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012153201] [2023-12-05 21:08:29,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:08:29,121 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:08:29,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:08:29,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:08:29,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:08:29,122 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 121 [2023-12-05 21:08:29,122 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 71 transitions, 250 flow. Second operand has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 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 21:08:29,122 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:08:29,122 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 121 [2023-12-05 21:08:29,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:08:29,162 INFO L124 PetriNetUnfolderBase]: 36/167 cut-off events. [2023-12-05 21:08:29,162 INFO L125 PetriNetUnfolderBase]: For 152/160 co-relation queries the response was YES. [2023-12-05 21:08:29,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 466 conditions, 167 events. 36/167 cut-off events. For 152/160 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 493 event pairs, 18 based on Foata normal form. 2/165 useless extension candidates. Maximal degree in co-relation 391. Up to 68 conditions per place. [2023-12-05 21:08:29,163 INFO L140 encePairwiseOnDemand]: 119/121 looper letters, 16 selfloop transitions, 1 changer transitions 0/70 dead transitions. [2023-12-05 21:08:29,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 70 transitions, 278 flow [2023-12-05 21:08:29,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:08:29,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:08:29,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 285 transitions. [2023-12-05 21:08:29,164 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7851239669421488 [2023-12-05 21:08:29,165 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 285 transitions. [2023-12-05 21:08:29,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 285 transitions. [2023-12-05 21:08:29,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:08:29,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 285 transitions. [2023-12-05 21:08:29,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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 21:08:29,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:29,167 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:29,167 INFO L308 CegarLoopForPetriNet]: 80 programPoint places, 4 predicate places. [2023-12-05 21:08:29,167 INFO L500 AbstractCegarLoop]: Abstraction has has 84 places, 70 transitions, 278 flow [2023-12-05 21:08:29,168 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 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 21:08:29,168 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:08:29,168 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] [2023-12-05 21:08:29,168 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-05 21:08:29,168 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] === [2023-12-05 21:08:29,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:08:29,168 INFO L85 PathProgramCache]: Analyzing trace with hash -442808959, now seen corresponding path program 1 times [2023-12-05 21:08:29,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:08:29,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072492792] [2023-12-05 21:08:29,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:08:29,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:08:29,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:08:29,290 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 21:08:29,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:08:29,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072492792] [2023-12-05 21:08:29,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072492792] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:08:29,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:08:29,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:08:29,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164506356] [2023-12-05 21:08:29,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:08:29,291 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:08:29,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:08:29,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:08:29,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:08:29,292 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 121 [2023-12-05 21:08:29,293 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 70 transitions, 278 flow. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 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 21:08:29,293 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:08:29,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 121 [2023-12-05 21:08:29,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:08:29,344 INFO L124 PetriNetUnfolderBase]: 26/137 cut-off events. [2023-12-05 21:08:29,344 INFO L125 PetriNetUnfolderBase]: For 218/218 co-relation queries the response was YES. [2023-12-05 21:08:29,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 442 conditions, 137 events. 26/137 cut-off events. For 218/218 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 333 event pairs, 0 based on Foata normal form. 8/145 useless extension candidates. Maximal degree in co-relation 360. Up to 58 conditions per place. [2023-12-05 21:08:29,345 INFO L140 encePairwiseOnDemand]: 119/121 looper letters, 19 selfloop transitions, 1 changer transitions 0/73 dead transitions. [2023-12-05 21:08:29,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 73 transitions, 352 flow [2023-12-05 21:08:29,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:08:29,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:08:29,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 296 transitions. [2023-12-05 21:08:29,347 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8154269972451791 [2023-12-05 21:08:29,347 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 296 transitions. [2023-12-05 21:08:29,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 296 transitions. [2023-12-05 21:08:29,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:08:29,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 296 transitions. [2023-12-05 21:08:29,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 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 21:08:29,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:29,349 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:29,351 INFO L308 CegarLoopForPetriNet]: 80 programPoint places, 5 predicate places. [2023-12-05 21:08:29,351 INFO L500 AbstractCegarLoop]: Abstraction has has 85 places, 73 transitions, 352 flow [2023-12-05 21:08:29,351 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 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 21:08:29,351 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:08:29,352 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] [2023-12-05 21:08:29,352 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-05 21:08:29,352 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] === [2023-12-05 21:08:29,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:08:29,360 INFO L85 PathProgramCache]: Analyzing trace with hash -442808960, now seen corresponding path program 1 times [2023-12-05 21:08:29,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:08:29,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178437849] [2023-12-05 21:08:29,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:08:29,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:08:29,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:08:29,431 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 21:08:29,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:08:29,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178437849] [2023-12-05 21:08:29,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178437849] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:08:29,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:08:29,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:08:29,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997344936] [2023-12-05 21:08:29,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:08:29,432 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:08:29,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:08:29,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:08:29,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:08:29,433 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 121 [2023-12-05 21:08:29,433 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 73 transitions, 352 flow. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 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 21:08:29,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:08:29,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 121 [2023-12-05 21:08:29,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:08:29,477 INFO L124 PetriNetUnfolderBase]: 16/119 cut-off events. [2023-12-05 21:08:29,477 INFO L125 PetriNetUnfolderBase]: For 258/258 co-relation queries the response was YES. [2023-12-05 21:08:29,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 395 conditions, 119 events. 16/119 cut-off events. For 258/258 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 254 event pairs, 0 based on Foata normal form. 8/127 useless extension candidates. Maximal degree in co-relation 305. Up to 40 conditions per place. [2023-12-05 21:08:29,478 INFO L140 encePairwiseOnDemand]: 119/121 looper letters, 0 selfloop transitions, 0 changer transitions 72/72 dead transitions. [2023-12-05 21:08:29,478 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 72 transitions, 384 flow [2023-12-05 21:08:29,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:08:29,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:08:29,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 287 transitions. [2023-12-05 21:08:29,479 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.790633608815427 [2023-12-05 21:08:29,479 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 287 transitions. [2023-12-05 21:08:29,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 287 transitions. [2023-12-05 21:08:29,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:08:29,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 287 transitions. [2023-12-05 21:08:29,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 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 21:08:29,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:29,481 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:08:29,483 INFO L308 CegarLoopForPetriNet]: 80 programPoint places, 6 predicate places. [2023-12-05 21:08:29,483 INFO L500 AbstractCegarLoop]: Abstraction has has 86 places, 72 transitions, 384 flow [2023-12-05 21:08:29,483 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 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 21:08:29,491 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/rfi009_power.opt_pso.oepc_pso.opt_rmo.opt_tso.oepc_tso.opt.i_BEv2_AllErrorsAtOnce [2023-12-05 21:08:29,526 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 9 remaining) [2023-12-05 21:08:29,527 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 9 remaining) [2023-12-05 21:08:29,528 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 9 remaining) [2023-12-05 21:08:29,528 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 9 remaining) [2023-12-05 21:08:29,528 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 9 remaining) [2023-12-05 21:08:29,528 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 9 remaining) [2023-12-05 21:08:29,528 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 9 remaining) [2023-12-05 21:08:29,528 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 9 remaining) [2023-12-05 21:08:29,528 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 9 remaining) [2023-12-05 21:08:29,529 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-05 21:08:29,529 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-05 21:08:29,531 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-05 21:08:29,532 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-05 21:08:29,537 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 09:08:29 BasicIcfg [2023-12-05 21:08:29,538 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-05 21:08:29,542 INFO L158 Benchmark]: Toolchain (without parser) took 2604.14ms. Allocated memory is still 295.7MB. Free memory was 243.5MB in the beginning and 206.4MB in the end (delta: 37.1MB). Peak memory consumption was 37.4MB. Max. memory is 8.0GB. [2023-12-05 21:08:29,542 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 231.7MB. Free memory is still 181.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-05 21:08:29,543 INFO L158 Benchmark]: CACSL2BoogieTranslator took 415.54ms. Allocated memory is still 295.7MB. Free memory was 243.5MB in the beginning and 219.1MB in the end (delta: 24.4MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-12-05 21:08:29,544 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.09ms. Allocated memory is still 295.7MB. Free memory was 219.1MB in the beginning and 216.3MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-05 21:08:29,544 INFO L158 Benchmark]: Boogie Preprocessor took 47.41ms. Allocated memory is still 295.7MB. Free memory was 216.3MB in the beginning and 214.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-05 21:08:29,544 INFO L158 Benchmark]: RCFGBuilder took 653.38ms. Allocated memory is still 295.7MB. Free memory was 214.2MB in the beginning and 226.1MB in the end (delta: -11.9MB). Peak memory consumption was 12.5MB. Max. memory is 8.0GB. [2023-12-05 21:08:29,544 INFO L158 Benchmark]: TraceAbstraction took 1421.03ms. Allocated memory is still 295.7MB. Free memory was 225.6MB in the beginning and 206.4MB in the end (delta: 19.1MB). Peak memory consumption was 18.6MB. Max. memory is 8.0GB. [2023-12-05 21:08:29,545 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 231.7MB. Free memory is still 181.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 415.54ms. Allocated memory is still 295.7MB. Free memory was 243.5MB in the beginning and 219.1MB in the end (delta: 24.4MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 61.09ms. Allocated memory is still 295.7MB. Free memory was 219.1MB in the beginning and 216.3MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 47.41ms. Allocated memory is still 295.7MB. Free memory was 216.3MB in the beginning and 214.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 653.38ms. Allocated memory is still 295.7MB. Free memory was 214.2MB in the beginning and 226.1MB in the end (delta: -11.9MB). Peak memory consumption was 12.5MB. Max. memory is 8.0GB. * TraceAbstraction took 1421.03ms. Allocated memory is still 295.7MB. Free memory was 225.6MB in the beginning and 206.4MB in the end (delta: 19.1MB). Peak memory consumption was 18.6MB. 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 146 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.3s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 45 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 45 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 116 IncrementalHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 39 mSDtfsCounter, 116 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=384occurred in iteration=6, InterpolantAutomatonStates: 18, 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, 0.5s InterpolantComputationTime, 276 NumberOfCodeBlocks, 276 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 270 ConstructedInterpolants, 0 QuantifiedInterpolants, 378 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-12-05 21:08:29,570 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...