/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-2_3-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.fix-rcfgbuilder-lbe-0ccecc1-m [2023-11-10 11:48:42,785 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-10 11:48:42,862 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-11-10 11:48:42,894 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-10 11:48:42,895 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-10 11:48:42,895 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-10 11:48:42,896 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-10 11:48:42,896 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-10 11:48:42,896 INFO L153 SettingsManager]: * Use SBE=true [2023-11-10 11:48:42,900 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-10 11:48:42,900 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-10 11:48:42,900 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-10 11:48:42,900 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-10 11:48:42,902 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-10 11:48:42,902 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-10 11:48:42,902 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-10 11:48:42,902 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-10 11:48:42,902 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-10 11:48:42,903 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-10 11:48:42,903 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-10 11:48:42,903 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-10 11:48:42,904 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-10 11:48:42,904 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-10 11:48:42,904 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-10 11:48:42,904 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-10 11:48:42,906 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:48:42,906 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-10 11:48:42,906 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-10 11:48:42,906 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-10 11:48:42,906 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-10 11:48:42,907 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-10 11:48:42,907 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-10 11:48:42,908 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-10 11:48:42,908 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-10 11:48:43,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-10 11:48:43,166 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-10 11:48:43,168 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-10 11:48:43,169 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-10 11:48:43,170 INFO L274 PluginConnector]: CDTParser initialized [2023-11-10 11:48:43,171 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_3-container_of.i [2023-11-10 11:48:44,361 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-10 11:48:44,667 INFO L384 CDTParser]: Found 1 translation units. [2023-11-10 11:48:44,667 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_3-container_of.i [2023-11-10 11:48:44,695 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e046100e9/f06d10005cc645e086650f7394fad1ef/FLAG1207ae6ad [2023-11-10 11:48:44,712 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e046100e9/f06d10005cc645e086650f7394fad1ef [2023-11-10 11:48:44,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-10 11:48:44,715 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-10 11:48:44,718 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-10 11:48:44,718 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-10 11:48:44,722 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-10 11:48:44,723 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:48:44" (1/1) ... [2023-11-10 11:48:44,724 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4699a542 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:44, skipping insertion in model container [2023-11-10 11:48:44,725 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:48:44" (1/1) ... [2023-11-10 11:48:44,789 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-10 11:48:44,902 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-10 11:48:45,306 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_3-container_of.i[75002,75015] [2023-11-10 11:48:45,350 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:48:45,364 INFO L202 MainTranslator]: Completed pre-run [2023-11-10 11:48:45,374 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-10 11:48:45,402 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_3-container_of.i[75002,75015] [2023-11-10 11:48:45,432 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:48:45,552 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:48:45,553 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:48:45,553 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:48:45,559 INFO L206 MainTranslator]: Completed translation [2023-11-10 11:48:45,559 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:45 WrapperNode [2023-11-10 11:48:45,559 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-10 11:48:45,560 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-10 11:48:45,560 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-10 11:48:45,560 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-10 11:48:45,565 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:45" (1/1) ... [2023-11-10 11:48:45,586 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:45" (1/1) ... [2023-11-10 11:48:45,609 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 144 [2023-11-10 11:48:45,610 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-10 11:48:45,610 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-10 11:48:45,611 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-10 11:48:45,611 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-10 11:48:45,618 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:45" (1/1) ... [2023-11-10 11:48:45,618 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:45" (1/1) ... [2023-11-10 11:48:45,625 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:45" (1/1) ... [2023-11-10 11:48:45,626 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:45" (1/1) ... [2023-11-10 11:48:45,636 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:45" (1/1) ... [2023-11-10 11:48:45,638 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:45" (1/1) ... [2023-11-10 11:48:45,641 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:45" (1/1) ... [2023-11-10 11:48:45,643 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:45" (1/1) ... [2023-11-10 11:48:45,650 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-10 11:48:45,650 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-10 11:48:45,650 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-10 11:48:45,650 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-10 11:48:45,651 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:45" (1/1) ... [2023-11-10 11:48:45,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:48:45,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:48:45,729 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-10 11:48:45,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-10 11:48:45,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-10 11:48:45,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-10 11:48:45,754 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-10 11:48:45,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-10 11:48:45,754 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-10 11:48:45,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-10 11:48:45,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-10 11:48:45,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-10 11:48:45,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-10 11:48:45,754 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-11-10 11:48:45,754 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-11-10 11:48:45,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-10 11:48:45,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-10 11:48:45,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-10 11:48:45,756 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-10 11:48:45,976 INFO L236 CfgBuilder]: Building ICFG [2023-11-10 11:48:45,978 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-10 11:48:46,216 INFO L277 CfgBuilder]: Performing block encoding [2023-11-10 11:48:46,269 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-10 11:48:46,270 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-10 11:48:46,273 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:48:46 BoogieIcfgContainer [2023-11-10 11:48:46,273 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-10 11:48:46,275 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-10 11:48:46,275 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-10 11:48:46,278 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-10 11:48:46,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 11:48:44" (1/3) ... [2023-11-10 11:48:46,279 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@226ea3db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:48:46, skipping insertion in model container [2023-11-10 11:48:46,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:45" (2/3) ... [2023-11-10 11:48:46,279 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@226ea3db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:48:46, skipping insertion in model container [2023-11-10 11:48:46,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:48:46" (3/3) ... [2023-11-10 11:48:46,280 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of.i [2023-11-10 11:48:46,297 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-10 11:48:46,297 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-10 11:48:46,298 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-10 11:48:46,373 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-10 11:48:46,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 177 places, 179 transitions, 372 flow [2023-11-10 11:48:46,485 INFO L124 PetriNetUnfolderBase]: 10/225 cut-off events. [2023-11-10 11:48:46,486 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-10 11:48:46,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 234 conditions, 225 events. 10/225 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 410 event pairs, 0 based on Foata normal form. 0/205 useless extension candidates. Maximal degree in co-relation 114. Up to 4 conditions per place. [2023-11-10 11:48:46,490 INFO L82 GeneralOperation]: Start removeDead. Operand has 177 places, 179 transitions, 372 flow [2023-11-10 11:48:46,494 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 163 places, 163 transitions, 338 flow [2023-11-10 11:48:46,502 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-10 11:48:46,508 INFO L357 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=false, 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;@388c6c52, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-10 11:48:46,508 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-10 11:48:46,526 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-10 11:48:46,526 INFO L124 PetriNetUnfolderBase]: 2/89 cut-off events. [2023-11-10 11:48:46,527 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-10 11:48:46,527 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:48:46,528 INFO L208 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] [2023-11-10 11:48:46,528 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-11-10 11:48:46,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:48:46,533 INFO L85 PathProgramCache]: Analyzing trace with hash -415383716, now seen corresponding path program 1 times [2023-11-10 11:48:46,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:48:46,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977590063] [2023-11-10 11:48:46,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:48:46,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:48:46,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:48:47,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:48:47,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:48:47,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977590063] [2023-11-10 11:48:47,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977590063] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:48:47,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:48:47,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-10 11:48:47,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059191232] [2023-11-10 11:48:47,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:48:47,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-10 11:48:47,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:48:47,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-10 11:48:47,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-10 11:48:47,364 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 179 [2023-11-10 11:48:47,369 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 163 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:48:47,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:48:47,369 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 179 [2023-11-10 11:48:47,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:48:47,692 INFO L124 PetriNetUnfolderBase]: 421/1231 cut-off events. [2023-11-10 11:48:47,692 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2023-11-10 11:48:47,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1993 conditions, 1231 events. 421/1231 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 7674 event pairs, 202 based on Foata normal form. 8/1127 useless extension candidates. Maximal degree in co-relation 1804. Up to 609 conditions per place. [2023-11-10 11:48:47,708 INFO L140 encePairwiseOnDemand]: 166/179 looper letters, 43 selfloop transitions, 7 changer transitions 0/166 dead transitions. [2023-11-10 11:48:47,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 166 transitions, 444 flow [2023-11-10 11:48:47,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-10 11:48:47,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-10 11:48:47,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 448 transitions. [2023-11-10 11:48:47,727 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8342644320297952 [2023-11-10 11:48:47,728 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 448 transitions. [2023-11-10 11:48:47,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 448 transitions. [2023-11-10 11:48:47,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:48:47,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 448 transitions. [2023-11-10 11:48:47,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 149.33333333333334) internal successors, (448), 3 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:48:47,744 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:48:47,744 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:48:47,746 INFO L175 Difference]: Start difference. First operand has 163 places, 163 transitions, 338 flow. Second operand 3 states and 448 transitions. [2023-11-10 11:48:47,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 166 transitions, 444 flow [2023-11-10 11:48:47,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 166 transitions, 436 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-10 11:48:47,758 INFO L231 Difference]: Finished difference. Result has 160 places, 161 transitions, 368 flow [2023-11-10 11:48:47,760 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=368, PETRI_PLACES=160, PETRI_TRANSITIONS=161} [2023-11-10 11:48:47,764 INFO L281 CegarLoopForPetriNet]: 163 programPoint places, -3 predicate places. [2023-11-10 11:48:47,764 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 161 transitions, 368 flow [2023-11-10 11:48:47,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:48:47,765 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:48:47,766 INFO L208 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] [2023-11-10 11:48:47,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-10 11:48:47,766 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-11-10 11:48:47,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:48:47,767 INFO L85 PathProgramCache]: Analyzing trace with hash 8007015, now seen corresponding path program 1 times [2023-11-10 11:48:47,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:48:47,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487277646] [2023-11-10 11:48:47,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:48:47,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:48:47,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:48:48,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:48:48,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:48:48,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487277646] [2023-11-10 11:48:48,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487277646] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:48:48,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:48:48,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-10 11:48:48,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941917954] [2023-11-10 11:48:48,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:48:48,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-10 11:48:48,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:48:48,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-10 11:48:48,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-10 11:48:48,047 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 179 [2023-11-10 11:48:48,048 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 161 transitions, 368 flow. Second operand has 3 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) [2023-11-10 11:48:48,048 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:48:48,048 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 179 [2023-11-10 11:48:48,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:48:48,313 INFO L124 PetriNetUnfolderBase]: 507/1408 cut-off events. [2023-11-10 11:48:48,313 INFO L125 PetriNetUnfolderBase]: For 460/850 co-relation queries the response was YES. [2023-11-10 11:48:48,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2938 conditions, 1408 events. 507/1408 cut-off events. For 460/850 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 8984 event pairs, 221 based on Foata normal form. 3/1303 useless extension candidates. Maximal degree in co-relation 513. Up to 718 conditions per place. [2023-11-10 11:48:48,326 INFO L140 encePairwiseOnDemand]: 171/179 looper letters, 47 selfloop transitions, 12 changer transitions 0/175 dead transitions. [2023-11-10 11:48:48,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 175 transitions, 546 flow [2023-11-10 11:48:48,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-10 11:48:48,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-10 11:48:48,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 440 transitions. [2023-11-10 11:48:48,328 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.819366852886406 [2023-11-10 11:48:48,328 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 440 transitions. [2023-11-10 11:48:48,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 440 transitions. [2023-11-10 11:48:48,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:48:48,329 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 440 transitions. [2023-11-10 11:48:48,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:48:48,332 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:48:48,333 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:48:48,333 INFO L175 Difference]: Start difference. First operand has 160 places, 161 transitions, 368 flow. Second operand 3 states and 440 transitions. [2023-11-10 11:48:48,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 175 transitions, 546 flow [2023-11-10 11:48:48,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 175 transitions, 522 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-10 11:48:48,344 INFO L231 Difference]: Finished difference. Result has 162 places, 171 transitions, 462 flow [2023-11-10 11:48:48,345 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=462, PETRI_PLACES=162, PETRI_TRANSITIONS=171} [2023-11-10 11:48:48,345 INFO L281 CegarLoopForPetriNet]: 163 programPoint places, -1 predicate places. [2023-11-10 11:48:48,345 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 171 transitions, 462 flow [2023-11-10 11:48:48,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2023-11-10 11:48:48,346 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:48:48,346 INFO L208 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] [2023-11-10 11:48:48,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-10 11:48:48,346 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-11-10 11:48:48,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:48:48,349 INFO L85 PathProgramCache]: Analyzing trace with hash -204916001, now seen corresponding path program 1 times [2023-11-10 11:48:48,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:48:48,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513190508] [2023-11-10 11:48:48,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:48:48,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:48:48,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:48:48,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:48:48,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:48:48,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513190508] [2023-11-10 11:48:48,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513190508] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:48:48,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:48:48,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-10 11:48:48,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046746275] [2023-11-10 11:48:48,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:48:48,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-10 11:48:48,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:48:48,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-10 11:48:48,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-10 11:48:48,716 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 179 [2023-11-10 11:48:48,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 171 transitions, 462 flow. Second operand has 6 states, 6 states have (on average 100.66666666666667) internal successors, (604), 6 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:48:48,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:48:48,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 179 [2023-11-10 11:48:48,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:48:49,446 INFO L124 PetriNetUnfolderBase]: 1289/2967 cut-off events. [2023-11-10 11:48:49,446 INFO L125 PetriNetUnfolderBase]: For 2064/2206 co-relation queries the response was YES. [2023-11-10 11:48:49,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7352 conditions, 2967 events. 1289/2967 cut-off events. For 2064/2206 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 20636 event pairs, 301 based on Foata normal form. 3/2870 useless extension candidates. Maximal degree in co-relation 1387. Up to 1418 conditions per place. [2023-11-10 11:48:49,472 INFO L140 encePairwiseOnDemand]: 162/179 looper letters, 113 selfloop transitions, 34 changer transitions 0/240 dead transitions. [2023-11-10 11:48:49,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 240 transitions, 1022 flow [2023-11-10 11:48:49,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-10 11:48:49,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-10 11:48:49,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1115 transitions. [2023-11-10 11:48:49,476 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6229050279329609 [2023-11-10 11:48:49,476 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1115 transitions. [2023-11-10 11:48:49,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1115 transitions. [2023-11-10 11:48:49,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:48:49,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1115 transitions. [2023-11-10 11:48:49,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 111.5) internal successors, (1115), 10 states have internal predecessors, (1115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:48:49,482 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 179.0) internal successors, (1969), 11 states have internal predecessors, (1969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:48:49,483 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 179.0) internal successors, (1969), 11 states have internal predecessors, (1969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:48:49,483 INFO L175 Difference]: Start difference. First operand has 162 places, 171 transitions, 462 flow. Second operand 10 states and 1115 transitions. [2023-11-10 11:48:49,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 240 transitions, 1022 flow [2023-11-10 11:48:49,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 240 transitions, 998 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-10 11:48:49,493 INFO L231 Difference]: Finished difference. Result has 175 places, 199 transitions, 721 flow [2023-11-10 11:48:49,494 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=438, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=721, PETRI_PLACES=175, PETRI_TRANSITIONS=199} [2023-11-10 11:48:49,495 INFO L281 CegarLoopForPetriNet]: 163 programPoint places, 12 predicate places. [2023-11-10 11:48:49,495 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 199 transitions, 721 flow [2023-11-10 11:48:49,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 100.66666666666667) internal successors, (604), 6 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:48:49,496 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:48:49,496 INFO L208 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] [2023-11-10 11:48:49,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-10 11:48:49,496 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-11-10 11:48:49,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:48:49,497 INFO L85 PathProgramCache]: Analyzing trace with hash 680880505, now seen corresponding path program 1 times [2023-11-10 11:48:49,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:48:49,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648198055] [2023-11-10 11:48:49,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:48:49,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:48:49,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:48:49,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:48:49,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:48:49,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648198055] [2023-11-10 11:48:49,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648198055] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:48:49,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:48:49,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-10 11:48:49,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438770421] [2023-11-10 11:48:49,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:48:49,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-10 11:48:49,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:48:49,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-10 11:48:49,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-10 11:48:49,804 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 179 [2023-11-10 11:48:49,806 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 199 transitions, 721 flow. Second operand has 6 states, 6 states have (on average 101.83333333333333) internal successors, (611), 6 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:48:49,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:48:49,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 179 [2023-11-10 11:48:49,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:48:50,567 INFO L124 PetriNetUnfolderBase]: 1591/3539 cut-off events. [2023-11-10 11:48:50,567 INFO L125 PetriNetUnfolderBase]: For 14462/15692 co-relation queries the response was YES. [2023-11-10 11:48:50,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12704 conditions, 3539 events. 1591/3539 cut-off events. For 14462/15692 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 25226 event pairs, 367 based on Foata normal form. 49/3461 useless extension candidates. Maximal degree in co-relation 11644. Up to 1742 conditions per place. [2023-11-10 11:48:50,596 INFO L140 encePairwiseOnDemand]: 164/179 looper letters, 96 selfloop transitions, 39 changer transitions 61/289 dead transitions. [2023-11-10 11:48:50,596 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 289 transitions, 1899 flow [2023-11-10 11:48:50,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-10 11:48:50,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-10 11:48:50,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1212 transitions. [2023-11-10 11:48:50,600 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6155408836973083 [2023-11-10 11:48:50,600 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1212 transitions. [2023-11-10 11:48:50,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1212 transitions. [2023-11-10 11:48:50,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:48:50,601 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1212 transitions. [2023-11-10 11:48:50,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 110.18181818181819) internal successors, (1212), 11 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:48:50,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 179.0) internal successors, (2148), 12 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:48:50,607 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 179.0) internal successors, (2148), 12 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:48:50,607 INFO L175 Difference]: Start difference. First operand has 175 places, 199 transitions, 721 flow. Second operand 11 states and 1212 transitions. [2023-11-10 11:48:50,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 289 transitions, 1899 flow [2023-11-10 11:48:50,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 289 transitions, 1755 flow, removed 72 selfloop flow, removed 0 redundant places. [2023-11-10 11:48:50,627 INFO L231 Difference]: Finished difference. Result has 193 places, 212 transitions, 1014 flow [2023-11-10 11:48:50,627 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=657, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1014, PETRI_PLACES=193, PETRI_TRANSITIONS=212} [2023-11-10 11:48:50,628 INFO L281 CegarLoopForPetriNet]: 163 programPoint places, 30 predicate places. [2023-11-10 11:48:50,628 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 212 transitions, 1014 flow [2023-11-10 11:48:50,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 101.83333333333333) internal successors, (611), 6 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:48:50,629 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:48:50,629 INFO L208 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] [2023-11-10 11:48:50,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-10 11:48:50,629 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-11-10 11:48:50,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:48:50,630 INFO L85 PathProgramCache]: Analyzing trace with hash -208135210, now seen corresponding path program 1 times [2023-11-10 11:48:50,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:48:50,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41374668] [2023-11-10 11:48:50,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:48:50,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:48:50,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-10 11:48:50,675 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-10 11:48:50,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-10 11:48:50,724 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-10 11:48:50,724 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-10 11:48:50,725 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2023-11-10 11:48:50,727 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2023-11-10 11:48:50,727 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2023-11-10 11:48:50,727 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2023-11-10 11:48:50,727 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2023-11-10 11:48:50,727 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2023-11-10 11:48:50,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2023-11-10 11:48:50,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2023-11-10 11:48:50,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-10 11:48:50,728 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-10 11:48:50,733 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-10 11:48:50,733 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-10 11:48:50,771 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret21 could not be translated [2023-11-10 11:48:50,773 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated [2023-11-10 11:48:50,773 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated [2023-11-10 11:48:50,773 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre13 could not be translated [2023-11-10 11:48:50,774 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet7 [2023-11-10 11:48:50,775 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet7 [2023-11-10 11:48:50,775 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet7 [2023-11-10 11:48:50,783 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 11:48:50 BasicIcfg [2023-11-10 11:48:50,783 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-10 11:48:50,784 INFO L158 Benchmark]: Toolchain (without parser) took 6068.39ms. Allocated memory was 265.3MB in the beginning and 320.9MB in the end (delta: 55.6MB). Free memory was 217.0MB in the beginning and 172.7MB in the end (delta: 44.3MB). Peak memory consumption was 101.1MB. Max. memory is 8.0GB. [2023-11-10 11:48:50,784 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 177.2MB. Free memory was 133.1MB in the beginning and 133.0MB in the end (delta: 125.9kB). There was no memory consumed. Max. memory is 8.0GB. [2023-11-10 11:48:50,784 INFO L158 Benchmark]: CACSL2BoogieTranslator took 842.06ms. Allocated memory is still 265.3MB. Free memory was 216.7MB in the beginning and 224.6MB in the end (delta: -7.9MB). Peak memory consumption was 56.5MB. Max. memory is 8.0GB. [2023-11-10 11:48:50,786 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.60ms. Allocated memory is still 265.3MB. Free memory was 224.6MB in the beginning and 221.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-11-10 11:48:50,788 INFO L158 Benchmark]: Boogie Preprocessor took 39.26ms. Allocated memory is still 265.3MB. Free memory was 221.5MB in the beginning and 218.4MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-11-10 11:48:50,792 INFO L158 Benchmark]: RCFGBuilder took 622.86ms. Allocated memory is still 265.3MB. Free memory was 218.4MB in the beginning and 189.0MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2023-11-10 11:48:50,792 INFO L158 Benchmark]: TraceAbstraction took 4508.27ms. Allocated memory was 265.3MB in the beginning and 320.9MB in the end (delta: 55.6MB). Free memory was 188.5MB in the beginning and 172.7MB in the end (delta: 15.8MB). Peak memory consumption was 71.9MB. Max. memory is 8.0GB. [2023-11-10 11:48:50,796 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 177.2MB. Free memory was 133.1MB in the beginning and 133.0MB in the end (delta: 125.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 842.06ms. Allocated memory is still 265.3MB. Free memory was 216.7MB in the beginning and 224.6MB in the end (delta: -7.9MB). Peak memory consumption was 56.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.60ms. Allocated memory is still 265.3MB. Free memory was 224.6MB in the beginning and 221.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 39.26ms. Allocated memory is still 265.3MB. Free memory was 221.5MB in the beginning and 218.4MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 622.86ms. Allocated memory is still 265.3MB. Free memory was 218.4MB in the beginning and 189.0MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * TraceAbstraction took 4508.27ms. Allocated memory was 265.3MB in the beginning and 320.9MB in the end (delta: 55.6MB). Free memory was 188.5MB in the beginning and 172.7MB in the end (delta: 15.8MB). Peak memory consumption was 71.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret21 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet7 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet7 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet7 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1675]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1676] 0 pthread_t t1,t2; VAL [t1={3:0}, t2={4:0}] [L1745] CALL, EXPR 0 my_drv_init() [L1739] 0 return 0; VAL [\result=0, t1={3:0}, t2={4:0}] [L1745] RET, EXPR 0 my_drv_init() [L1745] 0 int ret = my_drv_init(); VAL [ret=0, t1={3:0}, t2={4:0}] [L1746] COND TRUE 0 ret==0 VAL [ret=0, t1={3:0}, t2={4:0}] [L1747] 0 int probe_ret; VAL [ret=0, t1={3:0}, t2={4:0}] [L1748] 0 struct my_data data; VAL [data={5:0}, ret=0, t1={3:0}, t2={4:0}] [L1749] CALL 0 my_drv_probe(&data) [L1706] 0 struct device *d = &data->dev; VAL [d={5:24}, data={5:0}, data={5:0}, t1={3:0}, t2={4:0}] [L1708] 0 data->shared.a = 0 VAL [d={5:24}, data={5:0}, data={5:0}, t1={3:0}, t2={4:0}] [L1709] 0 data->shared.b = 0 VAL [d={5:24}, data={5:0}, data={5:0}, t1={3:0}, t2={4:0}] [L1710] 0 int res = __VERIFIER_nondet_int(); VAL [d={5:24}, data={5:0}, data={5:0}, res=0, t1={3:0}, t2={4:0}] [L1711] COND FALSE 0 !(\read(res)) VAL [d={5:24}, data={5:0}, data={5:0}, res=0, t1={3:0}, t2={4:0}] [L1713] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [arg={5:24}, d={5:24}, data={5:0}, data={5:0}, res=0, t1={3:0}, t2={4:0}] [L1714] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [arg={5:24}, d={5:24}, data={5:0}, data={5:0}, res=0, t1={3:0}, t2={4:0}] [L1716] 0 data->shared.a = 3 VAL [arg={5:24}, d={5:24}, data={5:0}, data={5:0}, res=0, t1={3:0}, t2={4:0}] [L1689] 1 struct device *dev = (struct device*)arg; VAL [arg={5:24}, arg={5:24}, dev={5:24}, t1={3:0}, t2={4:0}] [L1690] 1 struct my_data *data; VAL [arg={5:24}, arg={5:24}, dev={5:24}, t1={3:0}, t2={4:0}] [L1691] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, dev={5:24}, t1={3:0}, t2={4:0}] [L1691] 1 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );} VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, dev={5:24}, t1={3:0}, t2={4:0}] [L1691] 1 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );} VAL [arg={5:24}, arg={5:24}, dev={5:24}, t1={3:0}, t2={4:0}] [L1691] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) VAL [arg={5:24}, arg={5:24}, data={5:0}, dev={5:24}, t1={3:0}, t2={4:0}] [L1694] 1 data->shared.a = 1 VAL [arg={5:24}, arg={5:24}, data={5:0}, dev={5:24}, t1={3:0}, t2={4:0}] [L1719] 0 data->shared.b = 3 VAL [arg={5:24}, arg={5:24}, d={5:24}, data={5:0}, data={5:0}, data={5:0}, dev={5:24}, res=0, t1={3:0}, t2={4:0}] [L1722] EXPR 0 data->shared.a [L1722] CALL 0 ldv_assert(data->shared.a==3) [L1675] COND TRUE 0 !expression [L1675] 0 reach_error() VAL [\old(expression)=0, arg={5:24}, arg={5:24}, data={5:0}, dev={5:24}, expression=0, t1={3:0}, t2={4:0}] - UnprovableResult [Line: 1675]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1714]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1713]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 190 locations, 8 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: 4.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 137 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 137 mSDsluCounter, 384 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 251 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 615 IncrementalHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 133 mSDtfsCounter, 615 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1014occurred in iteration=4, InterpolantAutomatonStates: 27, 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, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 281 NumberOfCodeBlocks, 281 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 215 ConstructedInterpolants, 0 QuantifiedInterpolants, 383 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 RESULT: Ultimate proved your program to be incorrect! [2023-11-10 11:48:50,816 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...