/root/.sdkman/candidates/java/current/bin/java -Xmx8000000000 -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/popl20-more-multiply-verify.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.dynamic-abstractions-e23131f-m [2024-05-03 05:10:58,910 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-03 05:10:58,956 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2024-05-03 05:10:58,960 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-03 05:10:58,960 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-03 05:10:58,960 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-05-03 05:10:58,978 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-03 05:10:58,979 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-03 05:10:58,979 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-03 05:10:58,979 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-03 05:10:58,980 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-03 05:10:58,980 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-03 05:10:58,980 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-03 05:10:58,981 INFO L153 SettingsManager]: * Use SBE=true [2024-05-03 05:10:58,981 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-03 05:10:58,981 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-03 05:10:58,982 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-03 05:10:58,982 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-03 05:10:58,982 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-03 05:10:58,983 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-03 05:10:58,983 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-03 05:10:58,984 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-03 05:10:58,984 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-03 05:10:58,984 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-03 05:10:58,985 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-03 05:10:58,985 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-03 05:10:58,985 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-03 05:10:58,985 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-03 05:10:58,986 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-05-03 05:10:58,986 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-03 05:10:58,986 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-03 05:10:58,987 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-03 05:10:58,987 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-03 05:10:58,987 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2024-05-03 05:10:58,988 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-03 05:10:58,988 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-03 05:10:58,988 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2024-05-03 05:10:58,989 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2024-05-03 05:10:58,989 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-03 05:10:58,989 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-05-03 05:10:58,990 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-03 05:10:58,990 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/UGemCutter-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2024-05-03 05:10:59,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-03 05:10:59,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-03 05:10:59,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-03 05:10:59,267 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-03 05:10:59,267 INFO L274 PluginConnector]: CDTParser initialized [2024-05-03 05:10:59,269 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-more-multiply-verify.wvr.c [2024-05-03 05:11:00,462 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-03 05:11:00,644 INFO L384 CDTParser]: Found 1 translation units. [2024-05-03 05:11:00,644 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-multiply-verify.wvr.c [2024-05-03 05:11:00,651 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/2b8455921/de24496b19194e31ba3ecf5398e6c037/FLAG1b1211d65 [2024-05-03 05:11:00,668 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/2b8455921/de24496b19194e31ba3ecf5398e6c037 [2024-05-03 05:11:00,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-03 05:11:00,671 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-03 05:11:00,673 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-03 05:11:00,673 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-03 05:11:00,677 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-03 05:11:00,678 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.05 05:11:00" (1/1) ... [2024-05-03 05:11:00,679 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46ed957c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:11:00, skipping insertion in model container [2024-05-03 05:11:00,679 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.05 05:11:00" (1/1) ... [2024-05-03 05:11:00,702 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-03 05:11:00,847 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-multiply-verify.wvr.c[3042,3055] [2024-05-03 05:11:00,855 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-03 05:11:00,865 INFO L202 MainTranslator]: Completed pre-run [2024-05-03 05:11:00,885 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-multiply-verify.wvr.c[3042,3055] [2024-05-03 05:11:00,889 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-03 05:11:00,904 INFO L206 MainTranslator]: Completed translation [2024-05-03 05:11:00,904 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:11:00 WrapperNode [2024-05-03 05:11:00,904 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-03 05:11:00,905 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-03 05:11:00,905 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-03 05:11:00,906 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-03 05:11:00,912 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:11:00" (1/1) ... [2024-05-03 05:11:00,919 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:11:00" (1/1) ... [2024-05-03 05:11:00,950 INFO L138 Inliner]: procedures = 26, calls = 50, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 186 [2024-05-03 05:11:00,951 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-03 05:11:00,951 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-03 05:11:00,952 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-03 05:11:00,952 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-03 05:11:00,960 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:11:00" (1/1) ... [2024-05-03 05:11:00,960 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:11:00" (1/1) ... [2024-05-03 05:11:00,964 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:11:00" (1/1) ... [2024-05-03 05:11:00,965 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:11:00" (1/1) ... [2024-05-03 05:11:00,971 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:11:00" (1/1) ... [2024-05-03 05:11:00,974 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:11:00" (1/1) ... [2024-05-03 05:11:00,975 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:11:00" (1/1) ... [2024-05-03 05:11:00,976 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:11:00" (1/1) ... [2024-05-03 05:11:00,979 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-03 05:11:00,980 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-03 05:11:00,980 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-03 05:11:00,980 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-03 05:11:00,981 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:11:00" (1/1) ... [2024-05-03 05:11:00,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-03 05:11:00,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 05:11:01,013 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-05-03 05:11:01,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-05-03 05:11:01,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-03 05:11:01,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-03 05:11:01,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-05-03 05:11:01,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-05-03 05:11:01,066 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-05-03 05:11:01,066 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-05-03 05:11:01,066 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-05-03 05:11:01,066 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-05-03 05:11:01,066 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-05-03 05:11:01,066 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-05-03 05:11:01,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-05-03 05:11:01,068 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-05-03 05:11:01,069 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-05-03 05:11:01,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-05-03 05:11:01,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-03 05:11:01,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-03 05:11:01,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-03 05:11:01,072 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-05-03 05:11:01,189 INFO L241 CfgBuilder]: Building ICFG [2024-05-03 05:11:01,190 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-03 05:11:01,417 INFO L282 CfgBuilder]: Performing block encoding [2024-05-03 05:11:01,515 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-03 05:11:01,516 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2024-05-03 05:11:01,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 05:11:01 BoogieIcfgContainer [2024-05-03 05:11:01,516 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-03 05:11:01,519 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-03 05:11:01,519 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-03 05:11:01,522 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-03 05:11:01,522 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.05 05:11:00" (1/3) ... [2024-05-03 05:11:01,522 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@325bbdcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 05:11:01, skipping insertion in model container [2024-05-03 05:11:01,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:11:00" (2/3) ... [2024-05-03 05:11:01,523 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@325bbdcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 05:11:01, skipping insertion in model container [2024-05-03 05:11:01,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 05:11:01" (3/3) ... [2024-05-03 05:11:01,524 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-multiply-verify.wvr.c [2024-05-03 05:11:01,532 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-05-03 05:11:01,540 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-03 05:11:01,541 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-05-03 05:11:01,541 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-03 05:11:01,602 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-05-03 05:11:01,642 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-03 05:11:01,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-03 05:11:01,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 05:11:01,648 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-03 05:11:01,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-05-03 05:11:01,686 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-03 05:11:01,694 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2024-05-03 05:11:01,699 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;@6cbd7f2c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-03 05:11:01,699 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-05-03 05:11:01,705 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 05:11:02,182 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:11:02,183 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:11:02,183 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:11:02,456 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:11:02,457 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:11:02,457 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:11:02,591 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:11:02,591 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:11:02,591 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:11:02,718 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:11:02,718 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:11:02,718 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:11:02,755 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 652 states. [2024-05-03 05:11:02,756 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-03 05:11:02,760 INFO L78 Accepts]: Start accepts. Automaton has currently 765 states, but on-demand construction may add more states Word has length 120 [2024-05-03 05:11:02,763 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 05:11:02,763 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 05:11:02,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 05:11:02,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1529887826, now seen corresponding path program 1 times [2024-05-03 05:11:02,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 05:11:02,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339695969] [2024-05-03 05:11:02,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 05:11:02,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 05:11:03,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:11:03,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 05:11:03,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 05:11:03,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339695969] [2024-05-03 05:11:03,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339695969] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-03 05:11:03,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-03 05:11:03,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-03 05:11:03,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123070468] [2024-05-03 05:11:03,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-03 05:11:03,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-03 05:11:03,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 05:11:03,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-03 05:11:03,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-03 05:11:03,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:03,168 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 05:11:03,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 60.0) internal successors, (120), 2 states have internal predecessors, (120), 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) [2024-05-03 05:11:03,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:03,170 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 05:11:03,280 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:11:03,281 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:11:03,281 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:11:03,382 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:11:03,383 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:11:03,384 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:11:03,489 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:11:03,489 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:11:03,489 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:11:03,733 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:11:03,734 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:11:03,734 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:11:03,779 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 662 states. [2024-05-03 05:11:03,780 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-03 05:11:03,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:03,780 INFO L78 Accepts]: Start accepts. Automaton has currently 807 states, but on-demand construction may add more states Word has length 117 [2024-05-03 05:11:03,781 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 05:11:03,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-03 05:11:03,782 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 05:11:03,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 05:11:03,783 INFO L85 PathProgramCache]: Analyzing trace with hash -920234986, now seen corresponding path program 1 times [2024-05-03 05:11:03,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 05:11:03,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265354641] [2024-05-03 05:11:03,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 05:11:03,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 05:11:03,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:11:04,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 05:11:04,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 05:11:04,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265354641] [2024-05-03 05:11:04,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265354641] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-03 05:11:04,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-03 05:11:04,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-05-03 05:11:04,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338950840] [2024-05-03 05:11:04,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-03 05:11:04,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-05-03 05:11:04,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 05:11:04,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-05-03 05:11:04,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-05-03 05:11:04,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:04,297 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 05:11:04,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 7 states have internal predecessors, (117), 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) [2024-05-03 05:11:04,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:04,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:04,299 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 05:11:04,493 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:11:04,494 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:11:04,494 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:11:04,587 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:11:04,588 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:11:04,588 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:11:04,749 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:11:04,750 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:11:04,750 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:11:04,851 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:11:04,851 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:11:04,851 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:11:04,892 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 670 states. [2024-05-03 05:11:04,892 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-03 05:11:04,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:04,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-03 05:11:04,892 INFO L78 Accepts]: Start accepts. Automaton has currently 815 states, but on-demand construction may add more states Word has length 125 [2024-05-03 05:11:04,895 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 05:11:04,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-05-03 05:11:04,896 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 05:11:04,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 05:11:04,897 INFO L85 PathProgramCache]: Analyzing trace with hash -187269403, now seen corresponding path program 1 times [2024-05-03 05:11:04,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 05:11:04,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089971577] [2024-05-03 05:11:04,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 05:11:04,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 05:11:04,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:11:05,141 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 05:11:05,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 05:11:05,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089971577] [2024-05-03 05:11:05,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089971577] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-03 05:11:05,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248458742] [2024-05-03 05:11:05,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 05:11:05,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 05:11:05,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 05:11:05,148 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-03 05:11:05,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-05-03 05:11:05,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:11:05,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 9 conjunts are in the unsatisfiable core [2024-05-03 05:11:05,278 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 05:11:05,470 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 05:11:05,470 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 05:11:05,787 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 05:11:05,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248458742] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-03 05:11:05,788 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-03 05:11:05,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2024-05-03 05:11:05,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531474542] [2024-05-03 05:11:05,789 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-03 05:11:05,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-05-03 05:11:05,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 05:11:05,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-05-03 05:11:05,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2024-05-03 05:11:05,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:05,792 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 05:11:05,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 9.789473684210526) internal successors, (186), 19 states have internal predecessors, (186), 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) [2024-05-03 05:11:05,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:05,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-03 05:11:05,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:05,793 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 05:11:06,061 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:11:06,061 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:11:06,061 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:11:06,146 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:11:06,147 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:11:06,147 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:11:06,233 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:11:06,233 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:11:06,233 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:11:06,333 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:11:06,333 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:11:06,333 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:11:06,420 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 679 states. [2024-05-03 05:11:06,420 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-03 05:11:06,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:06,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-03 05:11:06,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-05-03 05:11:06,421 INFO L78 Accepts]: Start accepts. Automaton has currently 824 states, but on-demand construction may add more states Word has length 133 [2024-05-03 05:11:06,423 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 05:11:06,432 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-05-03 05:11:06,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-05-03 05:11:06,629 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 05:11:06,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 05:11:06,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1911395660, now seen corresponding path program 2 times [2024-05-03 05:11:06,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 05:11:06,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270764214] [2024-05-03 05:11:06,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 05:11:06,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 05:11:06,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:11:09,048 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 05:11:09,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 05:11:09,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270764214] [2024-05-03 05:11:09,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270764214] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-03 05:11:09,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637967475] [2024-05-03 05:11:09,050 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-05-03 05:11:09,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 05:11:09,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 05:11:09,051 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-03 05:11:09,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-05-03 05:11:09,463 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-05-03 05:11:09,463 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-03 05:11:09,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 23 conjunts are in the unsatisfiable core [2024-05-03 05:11:09,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 05:11:09,845 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-03 05:11:09,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 17 [2024-05-03 05:11:09,916 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-05-03 05:11:09,917 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-05-03 05:11:09,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1637967475] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-03 05:11:09,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-05-03 05:11:09,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [26] total 34 [2024-05-03 05:11:09,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13109807] [2024-05-03 05:11:09,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-03 05:11:09,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-05-03 05:11:09,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 05:11:09,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-05-03 05:11:09,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1022, Unknown=0, NotChecked=0, Total=1122 [2024-05-03 05:11:09,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:09,920 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 05:11:09,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.416666666666666) internal successors, (125), 12 states have internal predecessors, (125), 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) [2024-05-03 05:11:09,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:09,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-03 05:11:09,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-05-03 05:11:09,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:09,920 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 05:11:10,053 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:11:10,054 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:11:10,054 INFO L370 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_~x~0#1, ~queue~0.offset, ~end~0, ~ok~0, ULTIMATE.start_assume_abort_if_not_~cond#1, ULTIMATE.start_assume_abort_if_not_#in~cond#1, ~queue~0.base, thread3Thread1of1ForFork2_#t~mem7#1, thread3Thread1of1ForFork2_#t~mem8#1, ~start~0, thread2Thread1of1ForFork1_~x~1#1, #memory_int] [2024-05-03 05:11:10,074 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:11:10,075 INFO L369 cStratifiedReduction]: Guessed abstraction level: [thread1Thread1of1ForFork0_~x~0#1, ~queue~0.offset, ~end~0, ~ok~0, ULTIMATE.start_assume_abort_if_not_~cond#1, ULTIMATE.start_assume_abort_if_not_#in~cond#1, ~queue~0.base, thread3Thread1of1ForFork2_#t~mem7#1, thread3Thread1of1ForFork2_#t~mem8#1, ~start~0, thread2Thread1of1ForFork1_~x~1#1, #memory_int] [2024-05-03 05:11:10,075 INFO L370 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_~x~0#1, ~queue~0.offset, ~end~0, ~ok~0, ULTIMATE.start_assume_abort_if_not_~cond#1, ULTIMATE.start_assume_abort_if_not_#in~cond#1, ~queue~0.base, thread3Thread1of1ForFork2_#t~mem7#1, thread3Thread1of1ForFork2_#t~mem8#1, ~start~0, thread2Thread1of1ForFork1_~x~1#1, #memory_int] [2024-05-03 05:11:10,121 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 336 states. [2024-05-03 05:11:10,121 INFO L212 cStratifiedReduction]: Copied states 33 times. [2024-05-03 05:11:10,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:10,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-03 05:11:10,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-05-03 05:11:10,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:11:10,122 INFO L78 Accepts]: Start accepts. Automaton has currently 345 states, but on-demand construction may add more states Word has length 138 [2024-05-03 05:11:10,123 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 05:11:10,132 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-05-03 05:11:10,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 05:11:10,329 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 05:11:10,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 05:11:10,329 INFO L85 PathProgramCache]: Analyzing trace with hash 953170380, now seen corresponding path program 1 times [2024-05-03 05:11:10,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 05:11:10,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888123122] [2024-05-03 05:11:10,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 05:11:10,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 05:11:10,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:11:10,480 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-05-03 05:11:10,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 05:11:10,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888123122] [2024-05-03 05:11:10,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888123122] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-03 05:11:10,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196575353] [2024-05-03 05:11:10,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 05:11:10,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 05:11:10,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 05:11:10,487 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-03 05:11:10,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-05-03 05:11:10,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:11:10,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 6 conjunts are in the unsatisfiable core [2024-05-03 05:11:10,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 05:11:10,637 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-05-03 05:11:10,637 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 05:11:10,679 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-05-03 05:11:10,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196575353] provided 1 perfect and 1 imperfect interpolant sequences [2024-05-03 05:11:10,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-05-03 05:11:10,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 7 [2024-05-03 05:11:10,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249982599] [2024-05-03 05:11:10,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-03 05:11:10,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-05-03 05:11:10,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 05:11:10,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-05-03 05:11:10,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-05-03 05:11:10,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:10,681 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 05:11:10,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 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) [2024-05-03 05:11:10,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:10,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-03 05:11:10,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-05-03 05:11:10,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:11:10,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:10,682 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 05:11:10,742 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:11:10,742 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:11:10,742 INFO L370 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_~x~0#1, ~queue~0.offset, ~end~0, ~ok~0, ULTIMATE.start_assume_abort_if_not_~cond#1, ULTIMATE.start_assume_abort_if_not_#in~cond#1, ~queue~0.base, thread3Thread1of1ForFork2_#t~mem7#1, thread3Thread1of1ForFork2_#t~mem8#1, ~start~0, thread2Thread1of1ForFork1_~x~1#1, #memory_int] [2024-05-03 05:11:10,764 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:11:10,764 INFO L369 cStratifiedReduction]: Guessed abstraction level: [thread1Thread1of1ForFork0_~x~0#1, ~queue~0.offset, ~end~0, ~ok~0, ULTIMATE.start_assume_abort_if_not_~cond#1, ULTIMATE.start_assume_abort_if_not_#in~cond#1, ~queue~0.base, thread3Thread1of1ForFork2_#t~mem7#1, thread3Thread1of1ForFork2_#t~mem8#1, ~start~0, thread2Thread1of1ForFork1_~x~1#1, #memory_int] [2024-05-03 05:11:10,764 INFO L370 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_~x~0#1, ~queue~0.offset, ~end~0, ~ok~0, ULTIMATE.start_assume_abort_if_not_~cond#1, ULTIMATE.start_assume_abort_if_not_#in~cond#1, ~queue~0.base, thread3Thread1of1ForFork2_#t~mem7#1, thread3Thread1of1ForFork2_#t~mem8#1, ~start~0, thread2Thread1of1ForFork1_~x~1#1, #memory_int] [2024-05-03 05:11:10,774 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 315 states. [2024-05-03 05:11:10,775 INFO L212 cStratifiedReduction]: Copied states 33 times. [2024-05-03 05:11:10,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:10,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-03 05:11:10,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-05-03 05:11:10,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:11:10,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-03 05:11:10,776 INFO L78 Accepts]: Start accepts. Automaton has currently 318 states, but on-demand construction may add more states Word has length 143 [2024-05-03 05:11:10,776 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 05:11:10,788 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-05-03 05:11:10,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 05:11:10,983 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 05:11:10,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 05:11:10,984 INFO L85 PathProgramCache]: Analyzing trace with hash -491991515, now seen corresponding path program 1 times [2024-05-03 05:11:10,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 05:11:10,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253053306] [2024-05-03 05:11:10,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 05:11:10,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 05:11:11,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:11:12,683 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 05:11:12,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 05:11:12,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253053306] [2024-05-03 05:11:12,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253053306] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-03 05:11:12,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696190941] [2024-05-03 05:11:12,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 05:11:12,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 05:11:12,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 05:11:12,687 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-03 05:11:12,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-05-03 05:11:12,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:11:12,802 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 41 conjunts are in the unsatisfiable core [2024-05-03 05:11:12,809 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 05:11:13,996 INFO L349 Elim1Store]: treesize reduction 34, result has 17.1 percent of original size [2024-05-03 05:11:13,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 40 treesize of output 20 [2024-05-03 05:11:14,071 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 05:11:14,072 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 05:11:14,999 INFO L349 Elim1Store]: treesize reduction 8, result has 82.2 percent of original size [2024-05-03 05:11:14,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 68 [2024-05-03 05:11:17,136 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 05:11:17,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696190941] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-03 05:11:17,137 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-03 05:11:17,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 23, 23] total 61 [2024-05-03 05:11:17,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363282093] [2024-05-03 05:11:17,137 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-03 05:11:17,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2024-05-03 05:11:17,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 05:11:17,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2024-05-03 05:11:17,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=413, Invalid=3247, Unknown=0, NotChecked=0, Total=3660 [2024-05-03 05:11:17,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:17,141 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 05:11:17,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 5.508196721311475) internal successors, (336), 61 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-03 05:11:17,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:17,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-03 05:11:17,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-05-03 05:11:17,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:11:17,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-03 05:11:17,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:17,142 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 05:11:18,601 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:11:18,601 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:11:18,601 INFO L370 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_~x~0#1, ~queue~0.offset, ~end~0, ~ok~0, ULTIMATE.start_assume_abort_if_not_~cond#1, ULTIMATE.start_assume_abort_if_not_#in~cond#1, ~queue~0.base, thread3Thread1of1ForFork2_#t~mem7#1, thread3Thread1of1ForFork2_#t~mem8#1, ~start~0, thread2Thread1of1ForFork1_~x~1#1, #memory_int] [2024-05-03 05:11:18,618 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:11:18,619 INFO L369 cStratifiedReduction]: Guessed abstraction level: [thread1Thread1of1ForFork0_~x~0#1, ~queue~0.offset, ~end~0, ~ok~0, ULTIMATE.start_assume_abort_if_not_~cond#1, ULTIMATE.start_assume_abort_if_not_#in~cond#1, ~queue~0.base, thread3Thread1of1ForFork2_#t~mem7#1, thread3Thread1of1ForFork2_#t~mem8#1, ~start~0, thread2Thread1of1ForFork1_~x~1#1, #memory_int] [2024-05-03 05:11:18,619 INFO L370 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_~x~0#1, ~queue~0.offset, ~end~0, ~ok~0, ULTIMATE.start_assume_abort_if_not_~cond#1, ULTIMATE.start_assume_abort_if_not_#in~cond#1, ~queue~0.base, thread3Thread1of1ForFork2_#t~mem7#1, thread3Thread1of1ForFork2_#t~mem8#1, ~start~0, thread2Thread1of1ForFork1_~x~1#1, #memory_int] [2024-05-03 05:11:18,720 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 324 states. [2024-05-03 05:11:18,720 INFO L212 cStratifiedReduction]: Copied states 33 times. [2024-05-03 05:11:18,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:18,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-03 05:11:18,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-05-03 05:11:18,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:11:18,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-03 05:11:18,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-05-03 05:11:18,721 INFO L78 Accepts]: Start accepts. Automaton has currently 327 states, but on-demand construction may add more states Word has length 151 [2024-05-03 05:11:18,722 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 05:11:18,728 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-05-03 05:11:18,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-05-03 05:11:18,923 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 05:11:18,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 05:11:18,923 INFO L85 PathProgramCache]: Analyzing trace with hash 2007565364, now seen corresponding path program 2 times [2024-05-03 05:11:18,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 05:11:18,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280879145] [2024-05-03 05:11:18,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 05:11:18,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 05:11:19,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:11:22,154 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 05:11:22,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 05:11:22,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280879145] [2024-05-03 05:11:22,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280879145] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-03 05:11:22,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151978068] [2024-05-03 05:11:22,155 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-05-03 05:11:22,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 05:11:22,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 05:11:22,161 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-03 05:11:22,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-05-03 05:11:22,299 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-05-03 05:11:22,299 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-03 05:11:22,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 65 conjunts are in the unsatisfiable core [2024-05-03 05:11:22,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 05:11:23,318 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-05-03 05:11:23,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-05-03 05:11:23,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-05-03 05:11:23,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-05-03 05:11:24,551 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-03 05:11:24,552 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 14 [2024-05-03 05:11:24,646 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 05:11:24,646 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 05:11:30,323 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-03 05:11:30,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 201 treesize of output 141 [2024-05-03 05:11:30,382 INFO L349 Elim1Store]: treesize reduction 13, result has 64.9 percent of original size [2024-05-03 05:11:30,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 2652 treesize of output 2471 [2024-05-03 05:11:30,411 INFO L173 IndexEqualityManager]: detected equality via solver [2024-05-03 05:11:30,414 INFO L173 IndexEqualityManager]: detected equality via solver [2024-05-03 05:11:30,436 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-03 05:11:30,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 399 treesize of output 341 [2024-05-03 05:11:30,451 INFO L173 IndexEqualityManager]: detected equality via solver [2024-05-03 05:11:30,454 INFO L173 IndexEqualityManager]: detected equality via solver [2024-05-03 05:11:30,478 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-03 05:11:30,478 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 321 treesize of output 302 [2024-05-03 05:11:30,548 INFO L349 Elim1Store]: treesize reduction 16, result has 56.8 percent of original size [2024-05-03 05:11:30,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 385 treesize of output 249 [2024-05-03 05:11:32,430 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 05:11:32,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [151978068] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-03 05:11:32,430 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-03 05:11:32,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 36, 32] total 88 [2024-05-03 05:11:32,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438556859] [2024-05-03 05:11:32,431 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-03 05:11:32,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2024-05-03 05:11:32,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 05:11:32,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2024-05-03 05:11:32,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=818, Invalid=6777, Unknown=61, NotChecked=0, Total=7656 [2024-05-03 05:11:32,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:32,435 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 05:11:32,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 88 states have (on average 4.4772727272727275) internal successors, (394), 88 states have internal predecessors, (394), 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) [2024-05-03 05:11:32,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:32,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-03 05:11:32,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-05-03 05:11:32,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:11:32,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-03 05:11:32,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-05-03 05:11:32,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:32,436 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 05:11:35,493 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:11:35,493 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:11:35,493 INFO L370 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_~x~0#1, ~queue~0.offset, ~end~0, ~ok~0, ULTIMATE.start_assume_abort_if_not_~cond#1, ULTIMATE.start_assume_abort_if_not_#in~cond#1, ~queue~0.base, thread3Thread1of1ForFork2_#t~mem7#1, thread3Thread1of1ForFork2_#t~mem8#1, ~start~0, thread2Thread1of1ForFork1_~x~1#1, #memory_int] [2024-05-03 05:11:35,509 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:11:35,509 INFO L369 cStratifiedReduction]: Guessed abstraction level: [thread1Thread1of1ForFork0_~x~0#1, ~queue~0.offset, ~end~0, ~ok~0, ULTIMATE.start_assume_abort_if_not_~cond#1, ULTIMATE.start_assume_abort_if_not_#in~cond#1, ~queue~0.base, thread3Thread1of1ForFork2_#t~mem7#1, thread3Thread1of1ForFork2_#t~mem8#1, ~start~0, thread2Thread1of1ForFork1_~x~1#1, #memory_int] [2024-05-03 05:11:35,509 INFO L370 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_~x~0#1, ~queue~0.offset, ~end~0, ~ok~0, ULTIMATE.start_assume_abort_if_not_~cond#1, ULTIMATE.start_assume_abort_if_not_#in~cond#1, ~queue~0.base, thread3Thread1of1ForFork2_#t~mem7#1, thread3Thread1of1ForFork2_#t~mem8#1, ~start~0, thread2Thread1of1ForFork1_~x~1#1, #memory_int] [2024-05-03 05:11:36,114 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 344 states. [2024-05-03 05:11:36,114 INFO L212 cStratifiedReduction]: Copied states 33 times. [2024-05-03 05:11:36,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:36,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-03 05:11:36,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-05-03 05:11:36,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:11:36,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-03 05:11:36,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-05-03 05:11:36,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-05-03 05:11:36,115 INFO L78 Accepts]: Start accepts. Automaton has currently 347 states, but on-demand construction may add more states Word has length 164 [2024-05-03 05:11:36,117 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 05:11:36,124 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-05-03 05:11:36,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 05:11:36,324 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 05:11:36,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 05:11:36,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1208142625, now seen corresponding path program 3 times [2024-05-03 05:11:36,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 05:11:36,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791504426] [2024-05-03 05:11:36,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 05:11:36,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 05:11:36,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:11:36,634 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-05-03 05:11:36,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 05:11:36,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791504426] [2024-05-03 05:11:36,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791504426] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-03 05:11:36,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838830016] [2024-05-03 05:11:36,636 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-05-03 05:11:36,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 05:11:36,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 05:11:36,637 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-03 05:11:36,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-05-03 05:11:36,829 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-05-03 05:11:36,829 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-03 05:11:36,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 14 conjunts are in the unsatisfiable core [2024-05-03 05:11:36,834 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 05:11:36,912 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-05-03 05:11:36,912 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 05:11:37,042 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-05-03 05:11:37,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [838830016] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-03 05:11:37,042 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-03 05:11:37,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-05-03 05:11:37,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099192439] [2024-05-03 05:11:37,043 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-03 05:11:37,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-05-03 05:11:37,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 05:11:37,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-05-03 05:11:37,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-05-03 05:11:37,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:37,044 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 05:11:37,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.875) internal successors, (158), 16 states have internal predecessors, (158), 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) [2024-05-03 05:11:37,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:37,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-03 05:11:37,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-05-03 05:11:37,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:11:37,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-03 05:11:37,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-05-03 05:11:37,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2024-05-03 05:11:37,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:37,045 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 05:11:37,645 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:11:37,645 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:11:37,645 INFO L370 cStratifiedReduction]: Actual level: [ULTIMATE.start_create_fresh_uint_array_~arr~0#1.offset, thread1Thread1of1ForFork0_~x~0#1, ~queue~0.offset, ULTIMATE.start_create_fresh_uint_array_#t~malloc23#1.offset, ULTIMATE.start_create_fresh_uint_array_#t~malloc23#1.base, ~end~0, ~ok~0, ULTIMATE.start_create_fresh_uint_array_#in~size#1, ULTIMATE.start_create_fresh_uint_array_~arr~0#1.base, ULTIMATE.start_create_fresh_uint_array_~size#1, ULTIMATE.start_assume_abort_if_not_~cond#1, ~B~0, ~n~0, ULTIMATE.start_create_fresh_uint_array_#res#1.offset, ULTIMATE.start_main_#t~ret13#1.base, ULTIMATE.start_create_fresh_uint_array_#t~post24#1, ULTIMATE.start_assume_abort_if_not_#in~cond#1, ULTIMATE.start_create_fresh_uint_array_~i~2#1, ULTIMATE.start_main_~#t1~0#1.base, ~queue~0.base, ULTIMATE.start_main_~#t2~0#1.base, thread3Thread1of1ForFork2_#t~mem7#1, thread3Thread1of1ForFork2_#t~mem8#1, ULTIMATE.start_main_~#t3~0#1.base, #StackHeapBarrier, ~start~0, thread2Thread1of1ForFork1_~x~1#1, #memory_int, ULTIMATE.start_main_#t~ret13#1.offset, ULTIMATE.start_create_fresh_uint_array_#res#1.base] [2024-05-03 05:11:37,659 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:11:37,659 INFO L369 cStratifiedReduction]: Guessed abstraction level: [ULTIMATE.start_create_fresh_uint_array_~arr~0#1.offset, thread1Thread1of1ForFork0_~x~0#1, ~queue~0.offset, ULTIMATE.start_create_fresh_uint_array_#t~malloc23#1.offset, ULTIMATE.start_create_fresh_uint_array_#t~malloc23#1.base, ~end~0, ~ok~0, ULTIMATE.start_create_fresh_uint_array_#in~size#1, ULTIMATE.start_create_fresh_uint_array_~arr~0#1.base, ULTIMATE.start_create_fresh_uint_array_~size#1, ULTIMATE.start_assume_abort_if_not_~cond#1, ~B~0, ~n~0, ULTIMATE.start_create_fresh_uint_array_#res#1.offset, ULTIMATE.start_main_#t~ret13#1.base, ULTIMATE.start_create_fresh_uint_array_#t~post24#1, ULTIMATE.start_assume_abort_if_not_#in~cond#1, ULTIMATE.start_create_fresh_uint_array_~i~2#1, ULTIMATE.start_main_~#t1~0#1.base, ~queue~0.base, ULTIMATE.start_main_~#t2~0#1.base, thread3Thread1of1ForFork2_#t~mem7#1, thread3Thread1of1ForFork2_#t~mem8#1, ULTIMATE.start_main_~#t3~0#1.base, #StackHeapBarrier, ~start~0, thread2Thread1of1ForFork1_~x~1#1, #memory_int, ULTIMATE.start_main_#t~ret13#1.offset, ULTIMATE.start_create_fresh_uint_array_#res#1.base] [2024-05-03 05:11:37,659 INFO L370 cStratifiedReduction]: Actual level: [ULTIMATE.start_create_fresh_uint_array_~arr~0#1.offset, thread1Thread1of1ForFork0_~x~0#1, ~queue~0.offset, ULTIMATE.start_create_fresh_uint_array_#t~malloc23#1.offset, ULTIMATE.start_create_fresh_uint_array_#t~malloc23#1.base, ~end~0, ~ok~0, ULTIMATE.start_create_fresh_uint_array_#in~size#1, ULTIMATE.start_create_fresh_uint_array_~arr~0#1.base, ULTIMATE.start_create_fresh_uint_array_~size#1, ULTIMATE.start_assume_abort_if_not_~cond#1, ~B~0, ~n~0, ULTIMATE.start_create_fresh_uint_array_#res#1.offset, ULTIMATE.start_main_#t~ret13#1.base, ULTIMATE.start_create_fresh_uint_array_#t~post24#1, ULTIMATE.start_assume_abort_if_not_#in~cond#1, ULTIMATE.start_create_fresh_uint_array_~i~2#1, ULTIMATE.start_main_~#t1~0#1.base, ~queue~0.base, ULTIMATE.start_main_~#t2~0#1.base, thread3Thread1of1ForFork2_#t~mem7#1, thread3Thread1of1ForFork2_#t~mem8#1, ULTIMATE.start_main_~#t3~0#1.base, #StackHeapBarrier, ~start~0, thread2Thread1of1ForFork1_~x~1#1, #memory_int, ULTIMATE.start_main_#t~ret13#1.offset, ULTIMATE.start_create_fresh_uint_array_#res#1.base] [2024-05-03 05:11:37,834 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:11:37,834 INFO L369 cStratifiedReduction]: Guessed abstraction level: [ULTIMATE.start_create_fresh_uint_array_~arr~0#1.offset, thread1Thread1of1ForFork0_~x~0#1, ~queue~0.offset, ULTIMATE.start_create_fresh_uint_array_#t~malloc23#1.offset, ULTIMATE.start_create_fresh_uint_array_#t~malloc23#1.base, ~end~0, thread2Thread1of1ForFork1_#t~post4#1, ~ok~0, ULTIMATE.start_create_fresh_uint_array_#in~size#1, ULTIMATE.start_create_fresh_uint_array_~arr~0#1.base, ULTIMATE.start_create_fresh_uint_array_~size#1, ULTIMATE.start_assume_abort_if_not_~cond#1, thread1Thread1of1ForFork0_#t~post1#1, ~A~0, ~B~0, ~n~0, ULTIMATE.start_create_fresh_uint_array_#res#1.offset, ULTIMATE.start_main_#t~ret13#1.base, ULTIMATE.start_create_fresh_uint_array_#t~post24#1, ULTIMATE.start_assume_abort_if_not_#in~cond#1, ULTIMATE.start_create_fresh_uint_array_~i~2#1, ULTIMATE.start_main_~#t1~0#1.base, ~queue~0.base, ULTIMATE.start_main_~#t2~0#1.base, thread3Thread1of1ForFork2_#t~mem7#1, thread3Thread1of1ForFork2_#t~mem8#1, ULTIMATE.start_main_~#t3~0#1.base, thread2Thread1of1ForFork1_~i~1#1, #StackHeapBarrier, ~start~0, thread2Thread1of1ForFork1_~x~1#1, #memory_int, ULTIMATE.start_main_#t~ret13#1.offset, thread1Thread1of1ForFork0_~i~0#1, ULTIMATE.start_create_fresh_uint_array_#res#1.base] [2024-05-03 05:11:37,834 INFO L370 cStratifiedReduction]: Actual level: [ULTIMATE.start_create_fresh_uint_array_~arr~0#1.offset, thread1Thread1of1ForFork0_~x~0#1, ~queue~0.offset, ULTIMATE.start_create_fresh_uint_array_#t~malloc23#1.offset, ULTIMATE.start_create_fresh_uint_array_#t~malloc23#1.base, ~end~0, thread2Thread1of1ForFork1_#t~post4#1, ~ok~0, ULTIMATE.start_create_fresh_uint_array_#in~size#1, ULTIMATE.start_create_fresh_uint_array_~arr~0#1.base, ULTIMATE.start_create_fresh_uint_array_~size#1, ULTIMATE.start_assume_abort_if_not_~cond#1, thread1Thread1of1ForFork0_#t~post1#1, ~A~0, ~B~0, ~n~0, ULTIMATE.start_create_fresh_uint_array_#res#1.offset, ULTIMATE.start_main_#t~ret13#1.base, ULTIMATE.start_create_fresh_uint_array_#t~post24#1, ULTIMATE.start_assume_abort_if_not_#in~cond#1, ULTIMATE.start_create_fresh_uint_array_~i~2#1, ULTIMATE.start_main_~#t1~0#1.base, ~queue~0.base, ULTIMATE.start_main_~#t2~0#1.base, thread3Thread1of1ForFork2_#t~mem7#1, thread3Thread1of1ForFork2_#t~mem8#1, ULTIMATE.start_main_~#t3~0#1.base, thread2Thread1of1ForFork1_~i~1#1, #StackHeapBarrier, ~start~0, thread2Thread1of1ForFork1_~x~1#1, #memory_int, ULTIMATE.start_main_#t~ret13#1.offset, thread1Thread1of1ForFork0_~i~0#1, ULTIMATE.start_create_fresh_uint_array_#res#1.base] [2024-05-03 05:11:37,846 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:11:37,846 INFO L369 cStratifiedReduction]: Guessed abstraction level: [ULTIMATE.start_create_fresh_uint_array_~arr~0#1.offset, thread1Thread1of1ForFork0_~x~0#1, ~queue~0.offset, ULTIMATE.start_create_fresh_uint_array_#t~malloc23#1.offset, ULTIMATE.start_create_fresh_uint_array_#t~malloc23#1.base, ~end~0, thread2Thread1of1ForFork1_#t~post4#1, ~ok~0, ULTIMATE.start_create_fresh_uint_array_#in~size#1, ULTIMATE.start_create_fresh_uint_array_~arr~0#1.base, ULTIMATE.start_create_fresh_uint_array_~size#1, ULTIMATE.start_assume_abort_if_not_~cond#1, thread1Thread1of1ForFork0_#t~post1#1, ~A~0, ~B~0, ~n~0, ULTIMATE.start_create_fresh_uint_array_#res#1.offset, ULTIMATE.start_main_#t~ret13#1.base, ULTIMATE.start_create_fresh_uint_array_#t~post24#1, ULTIMATE.start_assume_abort_if_not_#in~cond#1, ULTIMATE.start_create_fresh_uint_array_~i~2#1, ULTIMATE.start_main_~#t1~0#1.base, ~queue~0.base, ULTIMATE.start_main_~#t2~0#1.base, thread3Thread1of1ForFork2_#t~mem7#1, thread3Thread1of1ForFork2_#t~mem8#1, ULTIMATE.start_main_~#t3~0#1.base, thread2Thread1of1ForFork1_~i~1#1, #StackHeapBarrier, ~start~0, thread2Thread1of1ForFork1_~x~1#1, #memory_int, ULTIMATE.start_main_#t~ret13#1.offset, thread1Thread1of1ForFork0_~i~0#1, ULTIMATE.start_create_fresh_uint_array_#res#1.base] [2024-05-03 05:11:37,846 INFO L370 cStratifiedReduction]: Actual level: [ULTIMATE.start_create_fresh_uint_array_~arr~0#1.offset, thread1Thread1of1ForFork0_~x~0#1, ~queue~0.offset, ULTIMATE.start_create_fresh_uint_array_#t~malloc23#1.offset, ULTIMATE.start_create_fresh_uint_array_#t~malloc23#1.base, ~end~0, thread2Thread1of1ForFork1_#t~post4#1, ~ok~0, ULTIMATE.start_create_fresh_uint_array_#in~size#1, ULTIMATE.start_create_fresh_uint_array_~arr~0#1.base, ULTIMATE.start_create_fresh_uint_array_~size#1, ULTIMATE.start_assume_abort_if_not_~cond#1, thread1Thread1of1ForFork0_#t~post1#1, ~A~0, ~B~0, ~n~0, ULTIMATE.start_create_fresh_uint_array_#res#1.offset, ULTIMATE.start_main_#t~ret13#1.base, ULTIMATE.start_create_fresh_uint_array_#t~post24#1, ULTIMATE.start_assume_abort_if_not_#in~cond#1, ULTIMATE.start_create_fresh_uint_array_~i~2#1, ULTIMATE.start_main_~#t1~0#1.base, ~queue~0.base, ULTIMATE.start_main_~#t2~0#1.base, thread3Thread1of1ForFork2_#t~mem7#1, thread3Thread1of1ForFork2_#t~mem8#1, ULTIMATE.start_main_~#t3~0#1.base, thread2Thread1of1ForFork1_~i~1#1, #StackHeapBarrier, ~start~0, thread2Thread1of1ForFork1_~x~1#1, #memory_int, ULTIMATE.start_main_#t~ret13#1.offset, thread1Thread1of1ForFork0_~i~0#1, ULTIMATE.start_create_fresh_uint_array_#res#1.base] [2024-05-03 05:11:38,080 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 537 states. [2024-05-03 05:11:38,081 INFO L212 cStratifiedReduction]: Copied states 33 times. [2024-05-03 05:11:38,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:38,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-03 05:11:38,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-05-03 05:11:38,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:11:38,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-03 05:11:38,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-05-03 05:11:38,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-05-03 05:11:38,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-05-03 05:11:38,082 INFO L78 Accepts]: Start accepts. Automaton has currently 555 states, but on-demand construction may add more states Word has length 169 [2024-05-03 05:11:38,083 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 05:11:38,090 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-05-03 05:11:38,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-05-03 05:11:38,284 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 05:11:38,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 05:11:38,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1875953394, now seen corresponding path program 4 times [2024-05-03 05:11:38,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 05:11:38,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533371636] [2024-05-03 05:11:38,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 05:11:38,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 05:11:38,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:11:42,804 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 05:11:42,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 05:11:42,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533371636] [2024-05-03 05:11:42,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533371636] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-03 05:11:42,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578235283] [2024-05-03 05:11:42,804 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-05-03 05:11:42,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 05:11:42,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 05:11:42,805 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-03 05:11:42,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-05-03 05:11:42,946 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-05-03 05:11:42,947 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-03 05:11:42,949 INFO L262 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 47 conjunts are in the unsatisfiable core [2024-05-03 05:11:42,952 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 05:11:44,168 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-03 05:11:44,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 25 [2024-05-03 05:11:44,319 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-05-03 05:11:44,320 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 05:11:45,048 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-03 05:11:45,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 85 treesize of output 70 [2024-05-03 05:11:45,948 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-05-03 05:11:45,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578235283] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-03 05:11:45,949 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-03 05:11:45,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 23, 16] total 62 [2024-05-03 05:11:45,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083884953] [2024-05-03 05:11:45,949 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-03 05:11:45,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2024-05-03 05:11:45,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 05:11:45,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2024-05-03 05:11:45,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=206, Invalid=3576, Unknown=0, NotChecked=0, Total=3782 [2024-05-03 05:11:45,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:45,952 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 05:11:45,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 5.564516129032258) internal successors, (345), 62 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-03 05:11:45,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:45,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-03 05:11:45,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-05-03 05:11:45,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:11:45,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-03 05:11:45,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-05-03 05:11:45,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2024-05-03 05:11:45,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2024-05-03 05:11:45,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:45,953 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 05:11:48,246 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:11:48,247 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:11:48,247 INFO L370 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_~x~0#1, ~queue~0.offset, ~end~0, ~ok~0, ULTIMATE.start_assume_abort_if_not_~cond#1, ULTIMATE.start_assume_abort_if_not_#in~cond#1, ~queue~0.base, thread3Thread1of1ForFork2_#t~mem7#1, thread3Thread1of1ForFork2_#t~mem8#1, ~start~0, thread2Thread1of1ForFork1_~x~1#1, #memory_int] [2024-05-03 05:11:48,262 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:11:48,262 INFO L369 cStratifiedReduction]: Guessed abstraction level: [thread1Thread1of1ForFork0_~x~0#1, ~queue~0.offset, ~end~0, ~ok~0, ULTIMATE.start_assume_abort_if_not_~cond#1, ULTIMATE.start_assume_abort_if_not_#in~cond#1, ~queue~0.base, thread3Thread1of1ForFork2_#t~mem7#1, thread3Thread1of1ForFork2_#t~mem8#1, ~start~0, thread2Thread1of1ForFork1_~x~1#1, #memory_int] [2024-05-03 05:11:48,262 INFO L370 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_~x~0#1, ~queue~0.offset, ~end~0, ~ok~0, ULTIMATE.start_assume_abort_if_not_~cond#1, ULTIMATE.start_assume_abort_if_not_#in~cond#1, ~queue~0.base, thread3Thread1of1ForFork2_#t~mem7#1, thread3Thread1of1ForFork2_#t~mem8#1, ~start~0, thread2Thread1of1ForFork1_~x~1#1, #memory_int] [2024-05-03 05:11:48,401 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 427 states. [2024-05-03 05:11:48,401 INFO L212 cStratifiedReduction]: Copied states 33 times. [2024-05-03 05:11:48,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:48,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-03 05:11:48,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-05-03 05:11:48,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:11:48,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-03 05:11:48,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-05-03 05:11:48,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-05-03 05:11:48,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-05-03 05:11:48,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-05-03 05:11:48,402 INFO L78 Accepts]: Start accepts. Automaton has currently 445 states, but on-demand construction may add more states Word has length 182 [2024-05-03 05:11:48,404 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 05:11:48,412 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-05-03 05:11:48,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 05:11:48,604 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 05:11:48,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 05:11:48,605 INFO L85 PathProgramCache]: Analyzing trace with hash -710494817, now seen corresponding path program 5 times [2024-05-03 05:11:48,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 05:11:48,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371045939] [2024-05-03 05:11:48,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 05:11:48,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 05:11:48,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:11:48,991 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-05-03 05:11:48,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 05:11:48,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371045939] [2024-05-03 05:11:48,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371045939] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-03 05:11:48,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [455758716] [2024-05-03 05:11:48,991 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-05-03 05:11:48,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 05:11:48,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 05:11:48,993 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-03 05:11:49,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-05-03 05:11:49,151 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-05-03 05:11:49,152 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-03 05:11:49,154 INFO L262 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 22 conjunts are in the unsatisfiable core [2024-05-03 05:11:49,156 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 05:11:49,293 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-05-03 05:11:49,293 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 05:11:49,554 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-05-03 05:11:49,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [455758716] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-03 05:11:49,555 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-03 05:11:49,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 13] total 24 [2024-05-03 05:11:49,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458666426] [2024-05-03 05:11:49,555 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-03 05:11:49,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-05-03 05:11:49,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 05:11:49,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-05-03 05:11:49,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2024-05-03 05:11:49,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:49,557 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 05:11:49,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.416666666666667) internal successors, (178), 24 states have internal predecessors, (178), 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) [2024-05-03 05:11:49,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:49,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-03 05:11:49,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-05-03 05:11:49,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:11:49,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-03 05:11:49,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-05-03 05:11:49,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2024-05-03 05:11:49,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2024-05-03 05:11:49,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2024-05-03 05:11:49,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:49,558 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 05:11:50,303 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 358 states. [2024-05-03 05:11:50,303 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-03 05:11:50,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:50,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-03 05:11:50,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-05-03 05:11:50,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:11:50,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-03 05:11:50,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-05-03 05:11:50,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-05-03 05:11:50,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-05-03 05:11:50,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-05-03 05:11:50,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-05-03 05:11:50,304 INFO L78 Accepts]: Start accepts. Automaton has currently 366 states, but on-demand construction may add more states Word has length 192 [2024-05-03 05:11:50,305 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 05:11:50,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-05-03 05:11:50,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-05-03 05:11:50,506 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 05:11:50,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 05:11:50,507 INFO L85 PathProgramCache]: Analyzing trace with hash -274964976, now seen corresponding path program 6 times [2024-05-03 05:11:50,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 05:11:50,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221448858] [2024-05-03 05:11:50,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 05:11:50,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 05:11:50,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:11:51,005 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-05-03 05:11:51,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 05:11:51,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221448858] [2024-05-03 05:11:51,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221448858] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-03 05:11:51,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725810044] [2024-05-03 05:11:51,006 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-05-03 05:11:51,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 05:11:51,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 05:11:51,009 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-03 05:11:51,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-05-03 05:11:51,376 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2024-05-03 05:11:51,376 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-03 05:11:51,379 INFO L262 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 32 conjunts are in the unsatisfiable core [2024-05-03 05:11:51,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 05:11:51,623 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-05-03 05:11:51,623 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 05:11:52,066 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-05-03 05:11:52,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725810044] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-03 05:11:52,066 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-03 05:11:52,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 17] total 33 [2024-05-03 05:11:52,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301022122] [2024-05-03 05:11:52,067 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-03 05:11:52,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-05-03 05:11:52,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 05:11:52,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-05-03 05:11:52,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=946, Unknown=0, NotChecked=0, Total=1056 [2024-05-03 05:11:52,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:52,069 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 05:11:52,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 6.0606060606060606) internal successors, (200), 33 states have internal predecessors, (200), 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) [2024-05-03 05:11:52,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:52,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-03 05:11:52,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-05-03 05:11:52,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:11:52,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-03 05:11:52,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-05-03 05:11:52,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2024-05-03 05:11:52,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2024-05-03 05:11:52,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2024-05-03 05:11:52,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-05-03 05:11:52,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:52,070 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 05:11:53,289 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 401 states. [2024-05-03 05:11:53,289 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-03 05:11:53,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:53,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-03 05:11:53,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-05-03 05:11:53,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:11:53,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-03 05:11:53,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-05-03 05:11:53,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-05-03 05:11:53,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-05-03 05:11:53,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-05-03 05:11:53,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-05-03 05:11:53,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-05-03 05:11:53,290 INFO L78 Accepts]: Start accepts. Automaton has currently 409 states, but on-demand construction may add more states Word has length 207 [2024-05-03 05:11:53,291 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 05:11:53,298 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-05-03 05:11:53,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-05-03 05:11:53,498 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 05:11:53,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 05:11:53,499 INFO L85 PathProgramCache]: Analyzing trace with hash -641368287, now seen corresponding path program 7 times [2024-05-03 05:11:53,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 05:11:53,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209108626] [2024-05-03 05:11:53,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 05:11:53,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 05:11:53,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:11:54,190 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 115 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-05-03 05:11:54,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 05:11:54,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209108626] [2024-05-03 05:11:54,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209108626] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-03 05:11:54,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [97937529] [2024-05-03 05:11:54,191 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-05-03 05:11:54,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 05:11:54,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 05:11:54,192 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-03 05:11:54,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-05-03 05:11:54,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:11:54,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 56 conjunts are in the unsatisfiable core [2024-05-03 05:11:54,328 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 05:11:54,982 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 193 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-05-03 05:11:54,982 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 05:11:55,790 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-05-03 05:11:55,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [97937529] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-03 05:11:55,790 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-03 05:11:55,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 29, 21] total 60 [2024-05-03 05:11:55,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724422389] [2024-05-03 05:11:55,790 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-03 05:11:55,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2024-05-03 05:11:55,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 05:11:55,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2024-05-03 05:11:55,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=246, Invalid=3294, Unknown=0, NotChecked=0, Total=3540 [2024-05-03 05:11:55,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:55,793 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 05:11:55,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 4.8) internal successors, (288), 60 states have internal predecessors, (288), 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) [2024-05-03 05:11:55,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:55,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-03 05:11:55,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-05-03 05:11:55,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:11:55,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-03 05:11:55,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-05-03 05:11:55,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2024-05-03 05:11:55,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2024-05-03 05:11:55,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2024-05-03 05:11:55,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-05-03 05:11:55,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2024-05-03 05:11:55,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:55,795 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 05:11:59,732 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 443 states. [2024-05-03 05:11:59,732 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-03 05:11:59,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:11:59,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-03 05:11:59,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-05-03 05:11:59,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:11:59,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-03 05:11:59,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-05-03 05:11:59,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-05-03 05:11:59,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-05-03 05:11:59,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-05-03 05:11:59,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-05-03 05:11:59,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-05-03 05:11:59,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-05-03 05:11:59,733 INFO L78 Accepts]: Start accepts. Automaton has currently 444 states, but on-demand construction may add more states Word has length 232 [2024-05-03 05:11:59,735 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 05:11:59,744 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-05-03 05:11:59,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 05:11:59,944 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 05:11:59,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 05:11:59,945 INFO L85 PathProgramCache]: Analyzing trace with hash -804307681, now seen corresponding path program 8 times [2024-05-03 05:11:59,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 05:11:59,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311355036] [2024-05-03 05:11:59,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 05:11:59,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 05:11:59,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:12:01,119 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 270 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-05-03 05:12:01,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 05:12:01,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311355036] [2024-05-03 05:12:01,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311355036] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-03 05:12:01,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825150333] [2024-05-03 05:12:01,119 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-05-03 05:12:01,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 05:12:01,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 05:12:01,120 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-03 05:12:01,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-05-03 05:12:01,278 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-05-03 05:12:01,279 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-03 05:12:01,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 54 conjunts are in the unsatisfiable core [2024-05-03 05:12:01,285 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 05:12:01,858 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-05-03 05:12:01,858 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 05:12:03,088 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-05-03 05:12:03,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825150333] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-03 05:12:03,089 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-03 05:12:03,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 29, 29] total 74 [2024-05-03 05:12:03,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936633702] [2024-05-03 05:12:03,089 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-03 05:12:03,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2024-05-03 05:12:03,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 05:12:03,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2024-05-03 05:12:03,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=391, Invalid=5011, Unknown=0, NotChecked=0, Total=5402 [2024-05-03 05:12:03,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:12:03,092 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 05:12:03,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 74 states have (on average 4.202702702702703) internal successors, (311), 74 states have internal predecessors, (311), 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) [2024-05-03 05:12:03,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:12:03,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-03 05:12:03,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-05-03 05:12:03,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:12:03,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-03 05:12:03,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-05-03 05:12:03,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2024-05-03 05:12:03,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2024-05-03 05:12:03,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2024-05-03 05:12:03,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-05-03 05:12:03,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2024-05-03 05:12:03,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2024-05-03 05:12:03,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:12:03,094 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 05:12:15,465 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 554 states. [2024-05-03 05:12:15,466 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-03 05:12:15,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:12:15,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-03 05:12:15,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-05-03 05:12:15,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:12:15,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-03 05:12:15,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-05-03 05:12:15,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-05-03 05:12:15,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-05-03 05:12:15,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-05-03 05:12:15,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-05-03 05:12:15,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-05-03 05:12:15,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-05-03 05:12:15,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2024-05-03 05:12:15,468 INFO L78 Accepts]: Start accepts. Automaton has currently 555 states, but on-demand construction may add more states Word has length 272 [2024-05-03 05:12:15,470 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 05:12:15,476 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-05-03 05:12:15,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-05-03 05:12:15,672 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 05:12:15,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 05:12:15,673 INFO L85 PathProgramCache]: Analyzing trace with hash -52213712, now seen corresponding path program 9 times [2024-05-03 05:12:15,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 05:12:15,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327903811] [2024-05-03 05:12:15,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 05:12:15,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 05:12:15,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:12:17,765 INFO L134 CoverageAnalysis]: Checked inductivity of 743 backedges. 0 proven. 658 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-05-03 05:12:17,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 05:12:17,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327903811] [2024-05-03 05:12:17,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327903811] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-03 05:12:17,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808607782] [2024-05-03 05:12:17,765 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-05-03 05:12:17,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 05:12:17,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 05:12:17,767 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-03 05:12:17,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-05-03 05:12:19,871 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2024-05-03 05:12:19,872 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-03 05:12:19,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 80 conjunts are in the unsatisfiable core [2024-05-03 05:12:19,881 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 05:12:23,926 INFO L134 CoverageAnalysis]: Checked inductivity of 743 backedges. 215 proven. 409 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-05-03 05:12:23,926 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 05:12:29,520 INFO L134 CoverageAnalysis]: Checked inductivity of 743 backedges. 295 proven. 329 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-05-03 05:12:29,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1808607782] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-03 05:12:29,521 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-03 05:12:29,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 42, 44] total 132 [2024-05-03 05:12:29,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608343807] [2024-05-03 05:12:29,521 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-03 05:12:29,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 132 states [2024-05-03 05:12:29,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 05:12:29,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 132 interpolants. [2024-05-03 05:12:29,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1820, Invalid=15472, Unknown=0, NotChecked=0, Total=17292 [2024-05-03 05:12:29,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:12:29,528 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 05:12:29,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 132 states, 132 states have (on average 3.4696969696969697) internal successors, (458), 132 states have internal predecessors, (458), 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) [2024-05-03 05:12:29,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:12:29,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-03 05:12:29,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-05-03 05:12:29,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:12:29,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-03 05:12:29,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-05-03 05:12:29,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2024-05-03 05:12:29,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2024-05-03 05:12:29,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2024-05-03 05:12:29,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-05-03 05:12:29,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2024-05-03 05:12:29,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2024-05-03 05:12:29,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2024-05-03 05:12:29,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:12:29,530 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 05:14:05,002 WARN L293 SmtUtils]: Spent 46.72s on a formula simplification. DAG size of input: 122 DAG size of output: 122 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-05-03 05:14:12,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-05-03 05:16:09,948 WARN L293 SmtUtils]: Spent 1.24m on a formula simplification. DAG size of input: 125 DAG size of output: 125 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-05-03 05:16:53,073 WARN L293 SmtUtils]: Spent 24.11s on a formula simplification. DAG size of input: 121 DAG size of output: 117 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-05-03 05:17:36,573 WARN L293 SmtUtils]: Spent 20.08s on a formula simplification. DAG size of input: 126 DAG size of output: 117 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-05-03 05:17:58,368 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (mod c_~A~0 4294967296))) (and (<= (+ (mod (+ |c_thread1Thread1of1ForFork0_#t~post1#1| 4294967293) 4294967296) 1) .cse0) (<= (+ (mod (+ 4294967288 |c_thread1Thread1of1ForFork0_#t~post1#1|) 4294967296) 1) .cse0) (<= (+ (mod (+ 4294967295 |c_thread1Thread1of1ForFork0_~i~0#1|) 4294967296) 1) .cse0) (<= (+ (mod (+ 4294967294 |c_thread1Thread1of1ForFork0_~i~0#1|) 4294967296) 1) .cse0) (<= (+ (mod (+ 4294967292 |c_thread1Thread1of1ForFork0_#t~post1#1|) 4294967296) 1) .cse0) (<= (+ (mod (+ |c_thread1Thread1of1ForFork0_#t~post1#1| 4294967295) 4294967296) 1) .cse0) (<= (+ (mod (+ |c_thread1Thread1of1ForFork0_#t~post1#1| 4294967289) 4294967296) 1) .cse0) (<= (+ (mod (+ |c_thread1Thread1of1ForFork0_~i~0#1| 4294967287) 4294967296) 1) .cse0) (<= (+ (mod (+ |c_thread1Thread1of1ForFork0_~i~0#1| 4294967289) 4294967296) 1) .cse0) (<= (+ (mod (+ 4294967291 |c_thread1Thread1of1ForFork0_~i~0#1|) 4294967296) 1) .cse0) (<= (+ (mod (+ 4294967288 |c_thread1Thread1of1ForFork0_~i~0#1|) 4294967296) 1) .cse0) (<= (+ (mod (+ 4294967291 |c_thread1Thread1of1ForFork0_#t~post1#1|) 4294967296) 1) .cse0) (<= (+ (mod (+ |c_thread1Thread1of1ForFork0_~i~0#1| 4294967293) 4294967296) 1) .cse0) (<= (+ (mod (+ 4294967292 |c_thread1Thread1of1ForFork0_~i~0#1|) 4294967296) 1) .cse0) (<= (+ (mod (+ 4294967290 |c_thread1Thread1of1ForFork0_~i~0#1|) 4294967296) 1) .cse0) (<= (+ (mod |c_thread1Thread1of1ForFork0_#t~post1#1| 4294967296) 1) .cse0) (<= (+ 14 (* (div c_~A~0 4294967296) 4294967296)) c_~A~0) (<= (+ (mod (+ |c_thread1Thread1of1ForFork0_#t~post1#1| 4294967294) 4294967296) 1) .cse0) (<= (+ (mod (+ 4294967290 |c_thread1Thread1of1ForFork0_#t~post1#1|) 4294967296) 1) .cse0))) is different from false [2024-05-03 05:18:12,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 05:18:35,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 05:21:06,895 WARN L293 SmtUtils]: Spent 50.45s on a formula simplification that was a NOOP. DAG size: 95 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-05-03 05:21:10,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 05:21:12,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 05:23:19,468 WARN L293 SmtUtils]: Spent 46.21s on a formula simplification that was a NOOP. DAG size: 98 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-05-03 05:23:21,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 05:23:25,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 05:23:27,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 05:23:29,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 05:23:30,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 05:23:33,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 05:23:34,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 05:23:36,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 05:23:38,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 05:23:40,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 05:23:42,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 05:23:46,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 05:23:48,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 05:23:50,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 05:23:52,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 05:23:53,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 05:23:55,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 05:23:56,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 05:23:58,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 05:24:00,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 05:24:02,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 05:24:04,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 05:24:06,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 05:24:08,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 05:24:11,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 05:24:13,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 05:24:16,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 05:24:18,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 05:24:20,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 05:24:22,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 05:24:24,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 05:24:26,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] Received shutdown request... [2024-05-03 05:25:07,109 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2024-05-03 05:25:07,109 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 [2024-05-03 05:25:07,109 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2024-05-03 05:25:08,122 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2024-05-03 05:25:08,126 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-05-03 05:25:08,198 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 408 states. [2024-05-03 05:25:08,198 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-03 05:25:08,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-05-03 05:25:08,199 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2024-05-03 05:25:08,201 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-05-03 05:25:08,222 INFO L445 BasicCegarLoop]: Path program histogram: [9, 2, 1, 1, 1] [2024-05-03 05:25:08,225 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was TIMEOUT (1/4) [2024-05-03 05:25:08,226 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-05-03 05:25:08,226 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-05-03 05:25:08,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2024-05-03 05:25:08,231 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.05 05:25:08 BasicIcfg [2024-05-03 05:25:08,231 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-05-03 05:25:08,232 INFO L158 Benchmark]: Toolchain (without parser) took 847560.48ms. Allocated memory was 289.4MB in the beginning and 928.0MB in the end (delta: 638.6MB). Free memory was 221.2MB in the beginning and 735.8MB in the end (delta: -514.6MB). Peak memory consumption was 124.9MB. Max. memory is 8.0GB. [2024-05-03 05:25:08,232 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 170.9MB. Free memory is still 143.9MB. There was no memory consumed. Max. memory is 8.0GB. [2024-05-03 05:25:08,232 INFO L158 Benchmark]: CACSL2BoogieTranslator took 231.85ms. Allocated memory is still 289.4MB. Free memory was 220.9MB in the beginning and 208.6MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2024-05-03 05:25:08,232 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.60ms. Allocated memory is still 289.4MB. Free memory was 208.4MB in the beginning and 206.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-05-03 05:25:08,233 INFO L158 Benchmark]: Boogie Preprocessor took 27.66ms. Allocated memory is still 289.4MB. Free memory was 206.3MB in the beginning and 204.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-05-03 05:25:08,233 INFO L158 Benchmark]: RCFGBuilder took 536.48ms. Allocated memory is still 289.4MB. Free memory was 204.6MB in the beginning and 237.3MB in the end (delta: -32.7MB). Peak memory consumption was 11.0MB. Max. memory is 8.0GB. [2024-05-03 05:25:08,233 INFO L158 Benchmark]: TraceAbstraction took 846712.68ms. Allocated memory was 289.4MB in the beginning and 928.0MB in the end (delta: 638.6MB). Free memory was 235.8MB in the beginning and 735.8MB in the end (delta: -500.0MB). Peak memory consumption was 139.1MB. Max. memory is 8.0GB. [2024-05-03 05:25:08,234 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 170.9MB. Free memory is still 143.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 231.85ms. Allocated memory is still 289.4MB. Free memory was 220.9MB in the beginning and 208.6MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.60ms. Allocated memory is still 289.4MB. Free memory was 208.4MB in the beginning and 206.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.66ms. Allocated memory is still 289.4MB. Free memory was 206.3MB in the beginning and 204.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 536.48ms. Allocated memory is still 289.4MB. Free memory was 204.6MB in the beginning and 237.3MB in the end (delta: -32.7MB). Peak memory consumption was 11.0MB. Max. memory is 8.0GB. * TraceAbstraction took 846712.68ms. Allocated memory was 289.4MB in the beginning and 928.0MB in the end (delta: 638.6MB). Free memory was 235.8MB in the beginning and 735.8MB in the end (delta: -500.0MB). Peak memory consumption was 139.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 4489, independent: 4359, independent conditional: 4359, independent unconditional: 0, dependent: 130, dependent conditional: 130, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4375, independent: 4359, independent conditional: 4359, independent unconditional: 0, dependent: 16, dependent conditional: 16, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 4375, independent: 4359, independent conditional: 4359, independent unconditional: 0, dependent: 16, dependent conditional: 16, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4399, independent: 4359, independent conditional: 0, independent unconditional: 4359, dependent: 40, dependent conditional: 24, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 4399, independent: 4359, independent conditional: 0, independent unconditional: 4359, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4399, independent: 4359, independent conditional: 0, independent unconditional: 4359, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4375, independent: 4359, independent conditional: 0, independent unconditional: 4359, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4375, independent: 4359, independent conditional: 0, independent unconditional: 4359, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 16, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 16, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 77, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 77, dependent conditional: 0, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 4399, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 4375, unknown conditional: 0, unknown unconditional: 4375] , Statistics on independence cache: Total cache size (in pairs): 4375, Positive cache size: 4359, Positive conditional cache size: 0, Positive unconditional cache size: 4359, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 24, Maximal queried relation: 3, Independence queries for same thread: 114 - StatisticsResult: Reduction benchmarks 19.7ms Time before loop, 1029.9ms Time in loop, 1.0s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 7, Reduction States: 652, Duplicate States: 0, Protected Variables: 0 - StatisticsResult: Reduction benchmarks 9.9ms Time before loop, 598.8ms Time in loop, 0.6s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 7, Reduction States: 662, Duplicate States: 0, Protected Variables: 0 - StatisticsResult: Reduction benchmarks 82.2ms Time before loop, 510.4ms Time in loop, 0.6s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 7, Reduction States: 670, Duplicate States: 0, Protected Variables: 0 - StatisticsResult: Reduction benchmarks 162.1ms Time before loop, 464.6ms Time in loop, 0.6s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 7, Reduction States: 679, Duplicate States: 0, Protected Variables: 0 - StatisticsResult: Reduction benchmarks 50.6ms Time before loop, 149.9ms Time in loop, 0.2s Time in total, Has Loop: 1, wrong guesses: 1, overall guesses: 5, Reduction States: 336, Duplicate States: 33, Protected Variables: 12 - StatisticsResult: Reduction benchmarks 6.6ms Time before loop, 85.6ms Time in loop, 0.1s Time in total, Has Loop: 1, wrong guesses: 1, overall guesses: 5, Reduction States: 315, Duplicate States: 33, Protected Variables: 12 - StatisticsResult: Reduction benchmarks 1250.5ms Time before loop, 327.6ms Time in loop, 1.6s Time in total, Has Loop: 1, wrong guesses: 1, overall guesses: 5, Reduction States: 324, Duplicate States: 33, Protected Variables: 12 - StatisticsResult: Reduction benchmarks 2313.0ms Time before loop, 1364.9ms Time in loop, 3.7s Time in total, Has Loop: 1, wrong guesses: 1, overall guesses: 5, Reduction States: 344, Duplicate States: 33, Protected Variables: 30 - StatisticsResult: Reduction benchmarks 11.8ms Time before loop, 1023.1ms Time in loop, 1.0s Time in total, Has Loop: 1, wrong guesses: 1, overall guesses: 7, Reduction States: 537, Duplicate States: 33, Protected Variables: 12 - StatisticsResult: Reduction benchmarks 1914.5ms Time before loop, 533.0ms Time in loop, 2.4s Time in total, Has Loop: 1, wrong guesses: 1, overall guesses: 5, Reduction States: 427, Duplicate States: 33, Protected Variables: 30 - StatisticsResult: Reduction benchmarks 21.3ms Time before loop, 723.4ms Time in loop, 0.7s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 3, Reduction States: 358, Duplicate States: 0, Protected Variables: 30 - StatisticsResult: Reduction benchmarks 22.3ms Time before loop, 1196.2ms Time in loop, 1.2s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 3, Reduction States: 401, Duplicate States: 0, Protected Variables: 30 - StatisticsResult: Reduction benchmarks 518.3ms Time before loop, 3418.9ms Time in loop, 3.9s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 3, Reduction States: 443, Duplicate States: 0, Protected Variables: 30 - StatisticsResult: Reduction benchmarks 31.9ms Time before loop, 12339.5ms Time in loop, 12.4s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 3, Reduction States: 554, Duplicate States: 0, Protected Variables: 30 - StatisticsResult: Reduction benchmarks 109248.8ms Time before loop, 649419.5ms Time in loop, 758.7s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 2, Reduction States: 408, Duplicate States: 0, Protected Variables: 0 - StatisticsResult: Visitor Statistics States: 596, Transitions: 610, Traversal time: 1.0s - StatisticsResult: Visitor Statistics States: 596, Transitions: 613, Traversal time: 0.6s - StatisticsResult: Visitor Statistics States: 603, Transitions: 620, Traversal time: 0.6s - StatisticsResult: Visitor Statistics States: 611, Transitions: 628, Traversal time: 0.6s - StatisticsResult: Visitor Statistics States: 253, Transitions: 278, Traversal time: 0.2s - StatisticsResult: Visitor Statistics States: 223, Transitions: 251, Traversal time: 0.1s - StatisticsResult: Visitor Statistics States: 231, Transitions: 259, Traversal time: 1.6s - StatisticsResult: Visitor Statistics States: 244, Transitions: 272, Traversal time: 3.7s - StatisticsResult: Visitor Statistics States: 374, Transitions: 460, Traversal time: 1.0s - StatisticsResult: Visitor Statistics States: 297, Transitions: 335, Traversal time: 2.4s - StatisticsResult: Visitor Statistics States: 229, Transitions: 234, Traversal time: 0.7s - StatisticsResult: Visitor Statistics States: 244, Transitions: 249, Traversal time: 1.2s - StatisticsResult: Visitor Statistics States: 242, Transitions: 247, Traversal time: 3.9s - StatisticsResult: Visitor Statistics States: 282, Transitions: 287, Traversal time: 12.4s - StatisticsResult: Visitor Statistics States: 205, Transitions: 209, Traversal time: 758.7s - StatisticsResult: Proof manager benchmarks IrresponsibleProofs: 79, RedundantProofs: 13, ProvenStates: 242, Times there's more than one choice: 178, Avg number of choices: 3.3016528925619837 - TimeoutResultAtElement [Line: 110]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION with 1 thread instances CFG has 7 procedures, 186 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 846.6s, OverallIterations: 14, TraceHistogramMax: 0, PathProgramHistogramMax: 9, EmptinessCheckTime: 788.9s, 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: 429, 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: 0.3s SsaConstructionTime, 4.0s SatisfiabilityAnalysisTime, 49.9s InterpolantComputationTime, 4453 NumberOfCodeBlocks, 4416 NumberOfCodeBlocksAsserted, 54 NumberOfCheckSat, 6391 ConstructedInterpolants, 53 QuantifiedInterpolants, 53512 SizeOfPredicates, 238 NumberOfNonLiveVariables, 4474 ConjunctsInSsa, 449 ConjunctsInUnsatCore, 37 InterpolantComputations, 4 PerfectInterpolantSequences, 2061/5192 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