/usr/bin/java -Xmx7000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.prune.known.deadend.states.from.previous.iterations false -s ../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/test-hard1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dynamic-abstractions-e2ee32c-m [2023-09-07 07:41:35,999 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-09-07 07:41:36,076 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2023-09-07 07:41:36,082 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-09-07 07:41:36,083 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-09-07 07:41:36,083 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-09-07 07:41:36,101 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-07 07:41:36,101 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-07 07:41:36,102 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-07 07:41:36,102 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-07 07:41:36,103 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-07 07:41:36,103 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-07 07:41:36,103 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-09-07 07:41:36,104 INFO L153 SettingsManager]: * Use SBE=true [2023-09-07 07:41:36,104 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-07 07:41:36,104 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-07 07:41:36,105 INFO L153 SettingsManager]: * sizeof long=4 [2023-09-07 07:41:36,105 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-07 07:41:36,105 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-09-07 07:41:36,106 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-09-07 07:41:36,106 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-07 07:41:36,115 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-07 07:41:36,115 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-07 07:41:36,116 INFO L153 SettingsManager]: * sizeof long double=12 [2023-09-07 07:41:36,116 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-09-07 07:41:36,116 INFO L153 SettingsManager]: * Use constant arrays=true [2023-09-07 07:41:36,117 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-07 07:41:36,117 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-07 07:41:36,117 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-09-07 07:41:36,118 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-07 07:41:36,118 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-07 07:41:36,118 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-07 07:41:36,119 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-07 07:41:36,119 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2023-09-07 07:41:36,119 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-07 07:41:36,119 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-07 07:41:36,120 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-07 07:41:36,120 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-09-07 07:41:36,120 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-09-07 07:41:36,121 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-07 07:41:36,121 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2023-09-07 07:41:36,128 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2023-09-07 07:41:36,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-07 07:41:36,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-07 07:41:36,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-07 07:41:36,359 INFO L270 PluginConnector]: Initializing CDTParser... [2023-09-07 07:41:36,359 INFO L274 PluginConnector]: CDTParser initialized [2023-09-07 07:41:36,360 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-hard1.wvr.c [2023-09-07 07:41:37,564 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-09-07 07:41:37,737 INFO L384 CDTParser]: Found 1 translation units. [2023-09-07 07:41:37,737 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-hard1.wvr.c [2023-09-07 07:41:37,744 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4eefcad17/760fbea4f825477891971bef6a9964d4/FLAG8c88bf03a [2023-09-07 07:41:38,132 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4eefcad17/760fbea4f825477891971bef6a9964d4 [2023-09-07 07:41:38,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-07 07:41:38,136 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-09-07 07:41:38,137 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-07 07:41:38,137 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-07 07:41:38,143 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-07 07:41:38,143 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 07:41:38" (1/1) ... [2023-09-07 07:41:38,144 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b743872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:41:38, skipping insertion in model container [2023-09-07 07:41:38,144 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 07:41:38" (1/1) ... [2023-09-07 07:41:38,169 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-09-07 07:41:38,298 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-hard1.wvr.c[3373,3386] [2023-09-07 07:41:38,302 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-07 07:41:38,309 INFO L202 MainTranslator]: Completed pre-run [2023-09-07 07:41:38,331 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-hard1.wvr.c[3373,3386] [2023-09-07 07:41:38,332 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-07 07:41:38,338 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-07 07:41:38,339 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-07 07:41:38,345 INFO L206 MainTranslator]: Completed translation [2023-09-07 07:41:38,345 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:41:38 WrapperNode [2023-09-07 07:41:38,345 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-07 07:41:38,346 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-07 07:41:38,346 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-07 07:41:38,346 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-07 07:41:38,352 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:41:38" (1/1) ... [2023-09-07 07:41:38,359 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:41:38" (1/1) ... [2023-09-07 07:41:38,376 INFO L138 Inliner]: procedures = 24, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 98 [2023-09-07 07:41:38,376 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-07 07:41:38,377 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-07 07:41:38,377 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-07 07:41:38,377 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-09-07 07:41:38,385 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:41:38" (1/1) ... [2023-09-07 07:41:38,385 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:41:38" (1/1) ... [2023-09-07 07:41:38,388 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:41:38" (1/1) ... [2023-09-07 07:41:38,388 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:41:38" (1/1) ... [2023-09-07 07:41:38,393 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:41:38" (1/1) ... [2023-09-07 07:41:38,397 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:41:38" (1/1) ... [2023-09-07 07:41:38,398 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:41:38" (1/1) ... [2023-09-07 07:41:38,399 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:41:38" (1/1) ... [2023-09-07 07:41:38,401 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-07 07:41:38,402 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-07 07:41:38,402 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-09-07 07:41:38,402 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-09-07 07:41:38,403 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:41:38" (1/1) ... [2023-09-07 07:41:38,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-07 07:41:38,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 07:41:38,430 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) [2023-09-07 07:41:38,437 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 [2023-09-07 07:41:38,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-07 07:41:38,459 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-09-07 07:41:38,459 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-09-07 07:41:38,459 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-09-07 07:41:38,459 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-09-07 07:41:38,459 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-09-07 07:41:38,459 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-09-07 07:41:38,460 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-09-07 07:41:38,460 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-09-07 07:41:38,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-07 07:41:38,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-07 07:41:38,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-07 07:41:38,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-07 07:41:38,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-07 07:41:38,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-07 07:41:38,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-07 07:41:38,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-07 07:41:38,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-07 07:41:38,464 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-07 07:41:38,549 INFO L236 CfgBuilder]: Building ICFG [2023-09-07 07:41:38,551 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-07 07:41:38,854 INFO L277 CfgBuilder]: Performing block encoding [2023-09-07 07:41:38,901 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-07 07:41:38,901 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-09-07 07:41:38,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 07:41:38 BoogieIcfgContainer [2023-09-07 07:41:38,906 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-07 07:41:38,907 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-07 07:41:38,907 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-09-07 07:41:38,909 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-09-07 07:41:38,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 07:41:38" (1/3) ... [2023-09-07 07:41:38,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d269482 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 07:41:38, skipping insertion in model container [2023-09-07 07:41:38,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:41:38" (2/3) ... [2023-09-07 07:41:38,911 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d269482 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 07:41:38, skipping insertion in model container [2023-09-07 07:41:38,911 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 07:41:38" (3/3) ... [2023-09-07 07:41:38,912 INFO L112 eAbstractionObserver]: Analyzing ICFG test-hard1.wvr.c [2023-09-07 07:41:38,919 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-07 07:41:38,927 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-07 07:41:38,927 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-09-07 07:41:38,927 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-07 07:41:39,012 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-09-07 07:41:39,067 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 07:41:39,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-09-07 07:41:39,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 07:41:39,073 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-09-07 07:41:39,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-09-07 07:41:39,132 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-09-07 07:41:39,138 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2023-09-07 07:41:39,143 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=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@7d4d527a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 07:41:39,143 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. Found a loop, use abstraction hammer [2023-09-07 07:41:40,229 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 07:41:40,235 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 07:41:40,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1849679986, now seen corresponding path program 1 times [2023-09-07 07:41:40,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 07:41:40,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773353849] [2023-09-07 07:41:40,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 07:41:40,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 07:41:40,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 07:41:40,488 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-09-07 07:41:40,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 07:41:40,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773353849] [2023-09-07 07:41:40,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773353849] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 07:41:40,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 07:41:40,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-07 07:41:40,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946080277] [2023-09-07 07:41:40,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 07:41:40,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-09-07 07:41:40,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 07:41:40,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-09-07 07:41:40,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-09-07 07:41:40,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:41:40,518 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 07:41:40,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 55.5) internal successors, (111), 2 states have internal predecessors, (111), 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) [2023-09-07 07:41:40,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2023-09-07 07:41:41,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:41:41,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-07 07:41:41,292 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 07:41:41,292 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 07:41:41,292 INFO L85 PathProgramCache]: Analyzing trace with hash 286628904, now seen corresponding path program 1 times [2023-09-07 07:41:41,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 07:41:41,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715942094] [2023-09-07 07:41:41,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 07:41:41,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 07:41:41,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 07:41:42,892 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 07:41:42,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 07:41:42,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715942094] [2023-09-07 07:41:42,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715942094] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 07:41:42,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877314664] [2023-09-07 07:41:42,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 07:41:42,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 07:41:42,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 07:41:42,935 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 07:41:42,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-09-07 07:41:43,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 07:41:43,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 24 conjunts are in the unsatisfiable core [2023-09-07 07:41:43,049 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 07:41:44,204 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 07:41:44,205 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 07:41:45,112 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 07:41:45,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877314664] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 07:41:45,113 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 07:41:45,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16, 17] total 45 [2023-09-07 07:41:45,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767275090] [2023-09-07 07:41:45,115 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 07:41:45,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2023-09-07 07:41:45,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 07:41:45,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2023-09-07 07:41:45,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=261, Invalid=1719, Unknown=0, NotChecked=0, Total=1980 [2023-09-07 07:41:45,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:41:45,121 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 07:41:45,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 5.444444444444445) internal successors, (245), 45 states have internal predecessors, (245), 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) [2023-09-07 07:41:45,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:41:45,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2023-09-07 07:42:09,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:42:09,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-09-07 07:42:09,527 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-09-07 07:42:09,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-09-07 07:42:09,723 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 07:42:09,723 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 07:42:09,723 INFO L85 PathProgramCache]: Analyzing trace with hash -2134179398, now seen corresponding path program 1 times [2023-09-07 07:42:09,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 07:42:09,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750524986] [2023-09-07 07:42:09,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 07:42:09,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 07:42:09,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 07:42:10,113 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 28 proven. 1 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-09-07 07:42:10,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 07:42:10,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750524986] [2023-09-07 07:42:10,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750524986] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 07:42:10,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292666203] [2023-09-07 07:42:10,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 07:42:10,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 07:42:10,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 07:42:10,115 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 07:42:10,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-09-07 07:42:10,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 07:42:10,216 INFO L262 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 6 conjunts are in the unsatisfiable core [2023-09-07 07:42:10,218 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 07:42:10,254 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 28 proven. 1 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-09-07 07:42:10,254 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 07:42:10,295 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 28 proven. 1 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-09-07 07:42:10,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [292666203] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 07:42:10,295 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 07:42:10,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2023-09-07 07:42:10,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141826405] [2023-09-07 07:42:10,296 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 07:42:10,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-09-07 07:42:10,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 07:42:10,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-09-07 07:42:10,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-09-07 07:42:10,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:42:10,298 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 07:42:10,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 9 states have internal predecessors, (132), 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) [2023-09-07 07:42:10,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:42:10,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2023-09-07 07:42:10,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2023-09-07 07:42:28,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:42:28,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-09-07 07:42:28,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 07:42:28,521 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-09-07 07:42:28,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 07:42:28,716 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 07:42:28,717 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 07:42:28,717 INFO L85 PathProgramCache]: Analyzing trace with hash 2073807243, now seen corresponding path program 2 times [2023-09-07 07:42:28,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 07:42:28,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308213340] [2023-09-07 07:42:28,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 07:42:28,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 07:42:28,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 07:42:30,553 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 15 proven. 65 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-09-07 07:42:30,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 07:42:30,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308213340] [2023-09-07 07:42:30,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308213340] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 07:42:30,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507599371] [2023-09-07 07:42:30,554 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-09-07 07:42:30,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 07:42:30,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 07:42:30,557 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 07:42:30,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-09-07 07:42:30,687 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-09-07 07:42:30,687 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-07 07:42:30,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 24 conjunts are in the unsatisfiable core [2023-09-07 07:42:30,692 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 07:42:31,332 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-09-07 07:42:31,332 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 07:42:32,089 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 45 proven. 8 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-09-07 07:42:32,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507599371] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 07:42:32,090 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 07:42:32,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 13, 17] total 48 [2023-09-07 07:42:32,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907092268] [2023-09-07 07:42:32,090 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 07:42:32,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-09-07 07:42:32,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 07:42:32,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-09-07 07:42:32,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=402, Invalid=1854, Unknown=0, NotChecked=0, Total=2256 [2023-09-07 07:42:32,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:42:32,093 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 07:42:32,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 5.6875) internal successors, (273), 48 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) [2023-09-07 07:42:32,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:42:32,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2023-09-07 07:42:32,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 07:42:32,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Received shutdown request... [2023-09-07 07:56:10,689 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-09-07 07:56:10,689 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-09-07 07:56:10,689 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-09-07 07:56:10,868 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-09-07 07:56:11,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 07:56:11,064 WARN L619 AbstractCegarLoop]: Verification canceled: while executing DynamicStratifiedReduction. [2023-09-07 07:56:11,066 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-09-07 07:56:11,113 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2023-09-07 07:56:11,114 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was TIMEOUT (1/5) [2023-09-07 07:56:11,115 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-07 07:56:11,116 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-07 07:56:11,118 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.09 07:56:11 BasicIcfg [2023-09-07 07:56:11,118 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-07 07:56:11,119 INFO L158 Benchmark]: Toolchain (without parser) took 872983.03ms. Allocated memory was 216.0MB in the beginning and 524.3MB in the end (delta: 308.3MB). Free memory was 170.8MB in the beginning and 299.2MB in the end (delta: -128.3MB). Peak memory consumption was 474.6MB. Max. memory is 7.0GB. [2023-09-07 07:56:11,119 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 155.2MB. Free memory is still 108.9MB. There was no memory consumed. Max. memory is 7.0GB. [2023-09-07 07:56:11,119 INFO L158 Benchmark]: CACSL2BoogieTranslator took 208.68ms. Allocated memory is still 216.0MB. Free memory was 170.3MB in the beginning and 158.7MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 7.0GB. [2023-09-07 07:56:11,120 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.38ms. Allocated memory is still 216.0MB. Free memory was 158.7MB in the beginning and 157.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 7.0GB. [2023-09-07 07:56:11,120 INFO L158 Benchmark]: Boogie Preprocessor took 24.43ms. Allocated memory is still 216.0MB. Free memory was 157.2MB in the beginning and 155.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 7.0GB. [2023-09-07 07:56:11,121 INFO L158 Benchmark]: RCFGBuilder took 503.50ms. Allocated memory is still 216.0MB. Free memory was 155.6MB in the beginning and 135.7MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 7.0GB. [2023-09-07 07:56:11,121 INFO L158 Benchmark]: TraceAbstraction took 872211.14ms. Allocated memory was 216.0MB in the beginning and 524.3MB in the end (delta: 308.3MB). Free memory was 134.7MB in the beginning and 299.2MB in the end (delta: -164.5MB). Peak memory consumption was 437.9MB. Max. memory is 7.0GB. [2023-09-07 07:56:11,123 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 155.2MB. Free memory is still 108.9MB. There was no memory consumed. Max. memory is 7.0GB. * CACSL2BoogieTranslator took 208.68ms. Allocated memory is still 216.0MB. Free memory was 170.3MB in the beginning and 158.7MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 7.0GB. * Boogie Procedure Inliner took 30.38ms. Allocated memory is still 216.0MB. Free memory was 158.7MB in the beginning and 157.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 7.0GB. * Boogie Preprocessor took 24.43ms. Allocated memory is still 216.0MB. Free memory was 157.2MB in the beginning and 155.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 7.0GB. * RCFGBuilder took 503.50ms. Allocated memory is still 216.0MB. Free memory was 155.6MB in the beginning and 135.7MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 7.0GB. * TraceAbstraction took 872211.14ms. Allocated memory was 216.0MB in the beginning and 524.3MB in the end (delta: 308.3MB). Free memory was 134.7MB in the beginning and 299.2MB in the end (delta: -164.5MB). Peak memory consumption was 437.9MB. Max. memory is 7.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 45368, independent: 40887, independent conditional: 40887, independent unconditional: 0, dependent: 4474, dependent conditional: 4474, dependent unconditional: 0, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 41498, independent: 40887, independent conditional: 40887, independent unconditional: 0, dependent: 604, dependent conditional: 604, dependent unconditional: 0, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 41498, independent: 40887, independent conditional: 40887, independent unconditional: 0, dependent: 604, dependent conditional: 604, dependent unconditional: 0, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 43405, independent: 40887, independent conditional: 0, independent unconditional: 40887, dependent: 2487, dependent conditional: 1883, dependent unconditional: 604, unknown: 31, unknown conditional: 24, unknown unconditional: 7] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 43405, independent: 40887, independent conditional: 0, independent unconditional: 40887, dependent: 2487, dependent conditional: 0, dependent unconditional: 2487, unknown: 31, unknown conditional: 0, unknown unconditional: 31] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 43405, independent: 40887, independent conditional: 0, independent unconditional: 40887, dependent: 2487, dependent conditional: 0, dependent unconditional: 2487, unknown: 31, unknown conditional: 0, unknown unconditional: 31] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 41498, independent: 40887, independent conditional: 0, independent unconditional: 40887, dependent: 604, dependent conditional: 0, dependent unconditional: 604, unknown: 7, unknown conditional: 0, unknown unconditional: 7] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 41498, independent: 40887, independent conditional: 0, independent unconditional: 40887, dependent: 611, dependent conditional: 0, dependent unconditional: 611, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 611, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 604, dependent conditional: 0, dependent unconditional: 604, unknown: 7, unknown conditional: 0, unknown unconditional: 7] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 611, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 604, dependent conditional: 0, dependent unconditional: 604, unknown: 7, unknown conditional: 0, unknown unconditional: 7] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 611, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 604, dependent conditional: 0, dependent unconditional: 604, unknown: 7, unknown conditional: 0, unknown unconditional: 7] , SemanticIndependenceRelation.Query Time [ms]: [ total: 17005, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 10662, dependent conditional: 0, dependent unconditional: 10662, unknown: 6344, unknown conditional: 0, unknown unconditional: 6344] , Protected Queries: 0 ], Cache Queries: [ total: 43405, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1883, dependent conditional: 0, dependent unconditional: 1883, unknown: 41522, unknown conditional: 0, unknown unconditional: 41522] , Statistics on independence cache: Total cache size (in pairs): 41491, Positive cache size: 40887, Positive conditional cache size: 0, Positive unconditional cache size: 40887, Negative cache size: 604, Negative conditional cache size: 0, Negative unconditional cache size: 604, Unknown cache size: 7, Unknown conditional cache size: 0, Unknown unconditional cache size: 7, Eliminated conditions: 1907, Maximal queried relation: 4, Independence queries for same thread: 3870 - StatisticsResult: Proof manager benchmarks IrresponsibleProofs: 4, RedundantProofs: 2, ProvenStates: 4324 - TimeoutResultAtElement [Line: 139]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing DynamicStratifiedReduction. - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION with 1 thread instances CFG has 9 procedures, 156 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 872.0s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 863.2s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 151, 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: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 7.0s InterpolantComputationTime, 861 NumberOfCodeBlocks, 861 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1226 ConstructedInterpolants, 0 QuantifiedInterpolants, 4656 SizeOfPredicates, 22 NumberOfNonLiveVariables, 901 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 469/619 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 could not prove your program: Timeout Completed graceful shutdown