/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/unroll-cond-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.dynamic-abstractions-a4a1cd3-m [2024-05-30 17:08:26,409 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-30 17:08:26,469 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2024-05-30 17:08:26,473 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-30 17:08:26,474 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-30 17:08:26,474 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-05-30 17:08:26,499 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-30 17:08:26,499 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-30 17:08:26,500 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-30 17:08:26,504 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-30 17:08:26,504 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-30 17:08:26,505 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-30 17:08:26,505 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-30 17:08:26,506 INFO L153 SettingsManager]: * Use SBE=true [2024-05-30 17:08:26,506 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-30 17:08:26,507 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-30 17:08:26,507 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-30 17:08:26,507 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-30 17:08:26,507 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-30 17:08:26,508 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-30 17:08:26,508 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-30 17:08:26,508 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-30 17:08:26,508 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-30 17:08:26,508 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-30 17:08:26,508 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-30 17:08:26,509 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-30 17:08:26,509 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-30 17:08:26,509 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-30 17:08:26,509 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-05-30 17:08:26,509 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-30 17:08:26,510 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-30 17:08:26,510 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-30 17:08:26,511 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-30 17:08:26,511 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2024-05-30 17:08:26,511 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-30 17:08:26,511 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-30 17:08:26,511 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2024-05-30 17:08:26,511 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2024-05-30 17:08:26,511 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-30 17:08:26,511 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-05-30 17:08:26,511 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-30 17:08:26,512 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2024-05-30 17:08:26,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-30 17:08:26,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-30 17:08:26,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-30 17:08:26,775 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-30 17:08:26,775 INFO L274 PluginConnector]: CDTParser initialized [2024-05-30 17:08:26,777 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/unroll-cond-3.wvr.c [2024-05-30 17:08:27,849 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-30 17:08:28,012 INFO L384 CDTParser]: Found 1 translation units. [2024-05-30 17:08:28,012 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-cond-3.wvr.c [2024-05-30 17:08:28,018 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/d5799e85a/fe8aeaa311b34bf58bc39dabfd12abb0/FLAG2746787b2 [2024-05-30 17:08:28,037 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/d5799e85a/fe8aeaa311b34bf58bc39dabfd12abb0 [2024-05-30 17:08:28,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-30 17:08:28,040 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-30 17:08:28,041 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-30 17:08:28,041 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-30 17:08:28,044 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-30 17:08:28,045 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.05 05:08:28" (1/1) ... [2024-05-30 17:08:28,045 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@561f4491 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 05:08:28, skipping insertion in model container [2024-05-30 17:08:28,046 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.05 05:08:28" (1/1) ... [2024-05-30 17:08:28,069 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-30 17:08:28,205 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/unroll-cond-3.wvr.c[2641,2654] [2024-05-30 17:08:28,212 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-30 17:08:28,219 INFO L202 MainTranslator]: Completed pre-run [2024-05-30 17:08:28,234 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/unroll-cond-3.wvr.c[2641,2654] [2024-05-30 17:08:28,236 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-30 17:08:28,250 INFO L206 MainTranslator]: Completed translation [2024-05-30 17:08:28,250 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 05:08:28 WrapperNode [2024-05-30 17:08:28,251 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-30 17:08:28,251 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-30 17:08:28,252 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-30 17:08:28,252 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-30 17:08:28,257 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 05:08:28" (1/1) ... [2024-05-30 17:08:28,263 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 05:08:28" (1/1) ... [2024-05-30 17:08:28,282 INFO L138 Inliner]: procedures = 24, calls = 37, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 165 [2024-05-30 17:08:28,282 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-30 17:08:28,282 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-30 17:08:28,282 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-30 17:08:28,283 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-30 17:08:28,290 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 05:08:28" (1/1) ... [2024-05-30 17:08:28,290 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 05:08:28" (1/1) ... [2024-05-30 17:08:28,292 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 05:08:28" (1/1) ... [2024-05-30 17:08:28,292 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 05:08:28" (1/1) ... [2024-05-30 17:08:28,304 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 05:08:28" (1/1) ... [2024-05-30 17:08:28,307 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 05:08:28" (1/1) ... [2024-05-30 17:08:28,308 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 05:08:28" (1/1) ... [2024-05-30 17:08:28,309 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 05:08:28" (1/1) ... [2024-05-30 17:08:28,311 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-30 17:08:28,311 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-30 17:08:28,311 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-30 17:08:28,312 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-30 17:08:28,312 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 05:08:28" (1/1) ... [2024-05-30 17:08:28,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-30 17:08:28,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 17:08:28,345 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) [2024-05-30 17:08:28,350 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 [2024-05-30 17:08:28,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-30 17:08:28,384 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-05-30 17:08:28,384 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-05-30 17:08:28,384 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-05-30 17:08:28,384 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-05-30 17:08:28,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-05-30 17:08:28,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-30 17:08:28,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-05-30 17:08:28,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-05-30 17:08:28,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-30 17:08:28,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-30 17:08:28,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-05-30 17:08:28,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-30 17:08:28,387 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-05-30 17:08:28,467 INFO L241 CfgBuilder]: Building ICFG [2024-05-30 17:08:28,469 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-30 17:08:28,666 INFO L282 CfgBuilder]: Performing block encoding [2024-05-30 17:08:28,676 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-30 17:08:28,676 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2024-05-30 17:08:28,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.05 05:08:28 BoogieIcfgContainer [2024-05-30 17:08:28,677 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-30 17:08:28,679 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-30 17:08:28,679 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-30 17:08:28,681 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-30 17:08:28,681 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.05 05:08:28" (1/3) ... [2024-05-30 17:08:28,682 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b515c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.05 05:08:28, skipping insertion in model container [2024-05-30 17:08:28,682 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 05:08:28" (2/3) ... [2024-05-30 17:08:28,682 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b515c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.05 05:08:28, skipping insertion in model container [2024-05-30 17:08:28,682 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.05 05:08:28" (3/3) ... [2024-05-30 17:08:28,683 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-cond-3.wvr.c [2024-05-30 17:08:28,691 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-05-30 17:08:28,698 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-30 17:08:28,699 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-05-30 17:08:28,699 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-30 17:08:28,819 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-05-30 17:08:28,863 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 17:08:28,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-30 17:08:28,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 17:08:28,866 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) [2024-05-30 17:08:28,872 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 [2024-05-30 17:08:28,916 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-30 17:08:28,923 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2024-05-30 17:08:28,928 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;@5c05b55d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 17:08:28,929 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-05-30 17:08:28,936 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 17:08:29,185 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:29,186 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:29,186 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:29,305 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:29,305 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:29,305 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:29,374 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:29,374 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:29,374 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:29,425 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:29,426 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:29,426 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:29,478 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:29,478 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:29,478 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:29,550 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:29,551 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:29,551 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:29,586 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:29,586 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:29,586 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:29,620 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:29,620 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:29,620 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:29,667 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:29,667 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:29,667 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:29,705 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:29,706 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:29,706 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:29,733 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:29,733 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:29,733 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:29,755 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:29,755 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:29,755 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:29,863 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:29,864 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:29,864 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:29,868 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 1122 states. [2024-05-30 17:08:29,868 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-30 17:08:29,871 INFO L78 Accepts]: Start accepts. Automaton has currently 1193 states, but on-demand construction may add more states Word has length 121 [2024-05-30 17:08:29,873 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 17:08:29,874 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 17:08:29,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 17:08:29,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1856813485, now seen corresponding path program 1 times [2024-05-30 17:08:29,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 17:08:29,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429883183] [2024-05-30 17:08:29,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 17:08:29,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 17:08:30,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 17:08:30,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-30 17:08:30,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 17:08:30,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429883183] [2024-05-30 17:08:30,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429883183] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 17:08:30,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 17:08:30,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-30 17:08:30,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800647524] [2024-05-30 17:08:30,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 17:08:30,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-30 17:08:30,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 17:08:30,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-30 17:08:30,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-30 17:08:30,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:08:30,224 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 17:08:30,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 60.5) internal successors, (121), 2 states have internal predecessors, (121), 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) [2024-05-30 17:08:30,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:08:30,226 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 17:08:30,272 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:30,272 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:30,272 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:30,294 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:30,294 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:30,294 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:30,317 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:30,318 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:30,318 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:30,340 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:30,340 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:30,340 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:30,359 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:30,359 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:30,359 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:30,381 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:30,381 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:30,381 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:30,406 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:30,407 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:30,407 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:30,423 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:30,424 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:30,424 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:30,443 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:30,444 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:30,444 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:30,474 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:30,475 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:30,475 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:30,557 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:30,558 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:30,558 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:30,597 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:30,598 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:30,598 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:30,714 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:30,714 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:30,714 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:30,721 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 1213 states. [2024-05-30 17:08:30,721 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-30 17:08:30,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:08:30,724 INFO L78 Accepts]: Start accepts. Automaton has currently 1349 states, but on-demand construction may add more states Word has length 115 [2024-05-30 17:08:30,725 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 17:08:30,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-30 17:08:30,727 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 17:08:30,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 17:08:30,731 INFO L85 PathProgramCache]: Analyzing trace with hash 864862503, now seen corresponding path program 1 times [2024-05-30 17:08:30,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 17:08:30,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571709823] [2024-05-30 17:08:30,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 17:08:30,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 17:08:30,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 17:08:31,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-30 17:08:31,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 17:08:31,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571709823] [2024-05-30 17:08:31,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571709823] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 17:08:31,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 17:08:31,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-05-30 17:08:31,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144668611] [2024-05-30 17:08:31,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 17:08:31,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-05-30 17:08:31,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 17:08:31,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-05-30 17:08:31,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-05-30 17:08:31,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:08:31,118 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 17:08:31,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 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) [2024-05-30 17:08:31,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:08:31,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:08:31,119 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 17:08:31,234 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:31,234 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:31,234 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:31,257 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:31,258 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:31,258 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:31,311 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:31,311 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:31,311 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:31,332 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:31,333 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:31,333 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:31,348 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:31,349 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:31,349 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:31,369 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:31,370 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:31,370 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:31,395 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:31,395 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:31,395 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:31,411 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:31,411 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:31,411 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:31,427 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:31,427 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:31,427 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:31,457 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:31,457 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:31,457 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:31,478 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:31,479 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:31,479 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:31,495 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:31,496 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:31,496 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:31,577 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:31,577 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:31,577 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:31,588 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 1234 states. [2024-05-30 17:08:31,588 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-30 17:08:31,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:08:31,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-30 17:08:31,589 INFO L78 Accepts]: Start accepts. Automaton has currently 1370 states, but on-demand construction may add more states Word has length 128 [2024-05-30 17:08:31,590 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 17:08:31,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-05-30 17:08:31,590 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 17:08:31,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 17:08:31,590 INFO L85 PathProgramCache]: Analyzing trace with hash -162564536, now seen corresponding path program 1 times [2024-05-30 17:08:31,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 17:08:31,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031453560] [2024-05-30 17:08:31,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 17:08:31,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 17:08:31,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 17:08:31,933 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-30 17:08:31,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 17:08:31,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031453560] [2024-05-30 17:08:31,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031453560] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 17:08:31,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1234450990] [2024-05-30 17:08:31,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 17:08:31,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 17:08:31,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 17:08:31,994 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) [2024-05-30 17:08:32,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-05-30 17:08:32,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 17:08:32,091 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 14 conjunts are in the unsatisfiable core [2024-05-30 17:08:32,100 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 17:08:32,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-30 17:08:32,218 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-30 17:08:32,441 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-30 17:08:32,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1234450990] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-30 17:08:32,442 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-30 17:08:32,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 15 [2024-05-30 17:08:32,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47260177] [2024-05-30 17:08:32,442 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-30 17:08:32,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-05-30 17:08:32,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 17:08:32,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-05-30 17:08:32,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-05-30 17:08:32,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:08:32,445 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 17:08:32,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 10.666666666666666) internal successors, (160), 15 states have internal predecessors, (160), 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) [2024-05-30 17:08:32,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:08:32,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-30 17:08:32,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:08:32,445 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 17:08:32,610 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:32,610 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:32,610 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:32,735 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:32,736 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:32,736 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:32,763 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:32,763 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:32,763 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:32,790 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:32,790 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:32,790 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:32,814 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:32,815 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:32,815 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:32,832 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:32,833 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:32,833 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:32,855 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:32,855 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:32,855 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:32,882 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:32,883 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:32,883 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:32,899 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:32,900 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:32,900 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:32,917 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:32,917 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:32,917 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:32,947 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:32,947 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:32,948 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:32,971 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:32,971 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:32,971 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:32,988 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:32,989 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:32,989 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:33,122 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:33,123 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:33,123 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:33,137 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 1376 states. [2024-05-30 17:08:33,137 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-30 17:08:33,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:08:33,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-30 17:08:33,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-05-30 17:08:33,138 INFO L78 Accepts]: Start accepts. Automaton has currently 1515 states, but on-demand construction may add more states Word has length 141 [2024-05-30 17:08:33,138 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 17:08:33,146 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-05-30 17:08:33,344 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 [2024-05-30 17:08:33,344 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 17:08:33,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 17:08:33,345 INFO L85 PathProgramCache]: Analyzing trace with hash 737271495, now seen corresponding path program 2 times [2024-05-30 17:08:33,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 17:08:33,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156129129] [2024-05-30 17:08:33,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 17:08:33,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 17:08:33,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 17:08:33,517 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-05-30 17:08:33,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 17:08:33,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156129129] [2024-05-30 17:08:33,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156129129] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 17:08:33,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 17:08:33,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-05-30 17:08:33,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579832496] [2024-05-30 17:08:33,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 17:08:33,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-05-30 17:08:33,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 17:08:33,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-05-30 17:08:33,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-05-30 17:08:33,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:08:33,519 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 17:08:33,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.0) internal successors, (128), 8 states have internal predecessors, (128), 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) [2024-05-30 17:08:33,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:08:33,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-30 17:08:33,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-05-30 17:08:33,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:08:33,519 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 17:08:33,598 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:33,599 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:33,599 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:33,614 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:33,614 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:33,614 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:33,629 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:33,629 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:33,629 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:33,653 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:33,653 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:33,653 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:33,675 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:33,675 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:33,675 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:33,692 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:33,692 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:33,692 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:33,715 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:33,715 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:33,715 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:33,745 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:33,746 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:33,746 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:33,805 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:33,806 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:33,806 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:33,822 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:33,822 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:33,822 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:33,853 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:33,854 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:33,854 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:33,877 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:33,877 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:33,877 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:33,894 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:33,894 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:33,894 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:33,979 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:33,980 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:33,980 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:33,987 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 1384 states. [2024-05-30 17:08:33,987 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-30 17:08:33,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:08:33,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-30 17:08:33,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-05-30 17:08:33,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-30 17:08:33,988 INFO L78 Accepts]: Start accepts. Automaton has currently 1523 states, but on-demand construction may add more states Word has length 149 [2024-05-30 17:08:33,988 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 17:08:33,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-05-30 17:08:33,989 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 17:08:33,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 17:08:33,989 INFO L85 PathProgramCache]: Analyzing trace with hash -822429454, now seen corresponding path program 1 times [2024-05-30 17:08:33,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 17:08:33,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828301510] [2024-05-30 17:08:33,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 17:08:33,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 17:08:34,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 17:08:35,084 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-30 17:08:35,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 17:08:35,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828301510] [2024-05-30 17:08:35,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828301510] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 17:08:35,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1237510079] [2024-05-30 17:08:35,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 17:08:35,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 17:08:35,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 17:08:35,102 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) [2024-05-30 17:08:35,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-05-30 17:08:35,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 17:08:35,212 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 47 conjunts are in the unsatisfiable core [2024-05-30 17:08:35,215 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 17:08:36,119 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-30 17:08:36,119 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-30 17:08:36,544 INFO L349 Elim1Store]: treesize reduction 10, result has 84.6 percent of original size [2024-05-30 17:08:36,544 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 6 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 82 [2024-05-30 17:08:37,137 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-30 17:08:37,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1237510079] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-30 17:08:37,137 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-30 17:08:37,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 25, 22] total 51 [2024-05-30 17:08:37,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055318016] [2024-05-30 17:08:37,138 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-30 17:08:37,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-05-30 17:08:37,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 17:08:37,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-05-30 17:08:37,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=322, Invalid=2228, Unknown=0, NotChecked=0, Total=2550 [2024-05-30 17:08:37,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:08:37,140 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 17:08:37,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 6.450980392156863) internal successors, (329), 51 states have internal predecessors, (329), 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) [2024-05-30 17:08:37,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:08:37,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-30 17:08:37,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-05-30 17:08:37,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-30 17:08:37,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:08:37,141 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 17:08:38,047 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:38,048 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:38,048 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:38,333 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:38,333 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:38,333 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:38,558 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:38,558 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:38,558 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:38,793 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:38,793 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:38,793 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:38,815 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:38,815 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:38,815 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:38,829 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:38,829 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:38,829 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:38,843 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:38,844 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:38,844 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:38,868 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:38,868 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:38,868 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:38,887 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:38,887 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:38,887 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:38,901 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:38,901 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:38,901 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:38,963 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:38,963 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:38,963 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:39,011 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 1334 states. [2024-05-30 17:08:39,011 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-30 17:08:39,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:08:39,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-30 17:08:39,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-05-30 17:08:39,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-30 17:08:39,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-05-30 17:08:39,012 INFO L78 Accepts]: Start accepts. Automaton has currently 1514 states, but on-demand construction may add more states Word has length 170 [2024-05-30 17:08:39,013 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 17:08:39,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-05-30 17:08:39,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 17:08:39,219 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 17:08:39,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 17:08:39,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1211924718, now seen corresponding path program 2 times [2024-05-30 17:08:39,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 17:08:39,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455085401] [2024-05-30 17:08:39,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 17:08:39,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 17:08:39,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 17:08:39,692 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 40 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-05-30 17:08:39,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 17:08:39,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455085401] [2024-05-30 17:08:39,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455085401] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 17:08:39,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476645225] [2024-05-30 17:08:39,693 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-05-30 17:08:39,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 17:08:39,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 17:08:39,695 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) [2024-05-30 17:08:39,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-05-30 17:08:39,849 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-05-30 17:08:39,849 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-30 17:08:39,851 INFO L262 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 20 conjunts are in the unsatisfiable core [2024-05-30 17:08:39,853 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 17:08:40,128 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-05-30 17:08:40,128 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-30 17:08:40,705 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 39 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-05-30 17:08:40,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476645225] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-30 17:08:40,705 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-30 17:08:40,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13, 12] total 31 [2024-05-30 17:08:40,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656864215] [2024-05-30 17:08:40,705 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-30 17:08:40,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-05-30 17:08:40,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 17:08:40,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-05-30 17:08:40,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=723, Unknown=0, NotChecked=0, Total=930 [2024-05-30 17:08:40,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:08:40,707 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 17:08:40,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 8.290322580645162) internal successors, (257), 31 states have internal predecessors, (257), 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) [2024-05-30 17:08:40,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:08:40,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-30 17:08:40,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-05-30 17:08:40,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-30 17:08:40,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2024-05-30 17:08:40,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:08:40,708 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 17:08:40,858 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:40,858 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:40,858 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:41,026 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:41,027 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:41,027 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:41,197 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:41,197 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:41,197 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:08:41,367 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:41,367 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:41,368 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:41,381 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:41,382 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:41,382 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:41,577 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:41,577 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:41,577 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:41,589 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:41,590 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:41,590 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:41,782 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:41,782 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:41,782 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:41,802 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:41,802 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:41,802 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:41,824 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:41,824 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:41,825 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:41,845 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:41,845 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:41,845 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:41,869 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:41,869 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:41,870 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:41,896 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:41,896 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:41,896 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:41,915 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:41,915 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:41,915 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:41,934 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:41,934 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:41,934 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:41,969 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:41,969 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:41,969 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:41,993 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:41,994 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:41,994 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:42,013 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:42,013 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:42,013 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:42,088 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:42,088 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:42,088 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:42,142 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 2179 states. [2024-05-30 17:08:42,142 INFO L212 cStratifiedReduction]: Copied states 219 times. [2024-05-30 17:08:42,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:08:42,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-30 17:08:42,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-05-30 17:08:42,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-30 17:08:42,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-05-30 17:08:42,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-05-30 17:08:42,143 INFO L78 Accepts]: Start accepts. Automaton has currently 2189 states, but on-demand construction may add more states Word has length 220 [2024-05-30 17:08:42,144 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 17:08:42,166 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-05-30 17:08:42,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 17:08:42,349 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 17:08:42,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 17:08:42,350 INFO L85 PathProgramCache]: Analyzing trace with hash 16020516, now seen corresponding path program 1 times [2024-05-30 17:08:42,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 17:08:42,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581309760] [2024-05-30 17:08:42,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 17:08:42,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 17:08:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 17:08:43,142 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-05-30 17:08:43,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 17:08:43,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581309760] [2024-05-30 17:08:43,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581309760] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 17:08:43,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320617210] [2024-05-30 17:08:43,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 17:08:43,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 17:08:43,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 17:08:43,144 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) [2024-05-30 17:08:43,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-05-30 17:08:43,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 17:08:43,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 52 conjunts are in the unsatisfiable core [2024-05-30 17:08:43,269 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 17:08:43,729 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-05-30 17:08:43,730 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-30 17:08:44,378 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-05-30 17:08:44,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320617210] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-30 17:08:44,378 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-30 17:08:44,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 23, 21] total 41 [2024-05-30 17:08:44,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167415127] [2024-05-30 17:08:44,378 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-30 17:08:44,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-05-30 17:08:44,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 17:08:44,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-05-30 17:08:44,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=1508, Unknown=0, NotChecked=0, Total=1640 [2024-05-30 17:08:44,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:08:44,381 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 17:08:44,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 8.0) internal successors, (328), 41 states have internal predecessors, (328), 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) [2024-05-30 17:08:44,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:08:44,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-30 17:08:44,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-05-30 17:08:44,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-30 17:08:44,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2024-05-30 17:08:44,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2024-05-30 17:08:44,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:08:44,381 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 17:08:45,372 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:45,373 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:45,373 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:45,387 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:45,387 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:45,387 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:45,614 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:45,614 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:45,615 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:45,628 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:45,628 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:45,628 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:45,858 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:45,859 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:45,859 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:45,870 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:45,870 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:45,870 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:46,097 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:46,098 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:46,098 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:46,109 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:46,109 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:46,109 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:46,340 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:46,340 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:46,340 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:46,351 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:46,352 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:46,352 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:46,390 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:46,390 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:46,391 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:46,403 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:46,403 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:46,403 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:46,430 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:46,431 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:46,431 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:46,449 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:46,449 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:46,449 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:46,469 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:46,469 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:46,469 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:46,485 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:46,485 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:46,486 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:46,505 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:46,505 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:46,505 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:46,529 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:46,529 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:46,530 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:46,546 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:46,546 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:46,546 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:46,563 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:46,563 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:46,563 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:46,591 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:46,591 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:46,592 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:46,619 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:46,619 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:46,619 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:46,637 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:46,637 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:46,637 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:46,702 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:46,703 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:46,703 INFO L395 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:46,731 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 2628 states. [2024-05-30 17:08:46,732 INFO L212 cStratifiedReduction]: Copied states 551 times. [2024-05-30 17:08:46,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:08:46,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-30 17:08:46,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-05-30 17:08:46,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-30 17:08:46,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-05-30 17:08:46,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-05-30 17:08:46,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-05-30 17:08:46,732 INFO L78 Accepts]: Start accepts. Automaton has currently 2306 states, but on-demand construction may add more states Word has length 233 [2024-05-30 17:08:46,734 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 17:08:46,752 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-05-30 17:08:46,953 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,SelfDestructingSolverStorable6 [2024-05-30 17:08:46,953 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 17:08:46,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 17:08:46,954 INFO L85 PathProgramCache]: Analyzing trace with hash -809426289, now seen corresponding path program 2 times [2024-05-30 17:08:46,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 17:08:46,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089356700] [2024-05-30 17:08:46,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 17:08:46,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 17:08:47,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 17:08:54,915 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 6 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-30 17:08:54,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 17:08:54,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089356700] [2024-05-30 17:08:54,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089356700] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 17:08:54,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2090789366] [2024-05-30 17:08:54,915 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-05-30 17:08:54,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 17:08:54,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 17:08:54,916 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) [2024-05-30 17:08:54,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-05-30 17:08:55,054 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-05-30 17:08:55,055 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-30 17:08:55,057 INFO L262 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 110 conjunts are in the unsatisfiable core [2024-05-30 17:08:55,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 17:08:55,842 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 15 treesize of output 1 [2024-05-30 17:08:56,362 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 [2024-05-30 17:08:56,464 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 [2024-05-30 17:09:01,351 INFO L349 Elim1Store]: treesize reduction 63, result has 22.2 percent of original size [2024-05-30 17:09:01,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 91 treesize of output 56 [2024-05-30 17:09:01,523 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-30 17:09:01,523 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-30 17:09:17,397 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-30 17:09:17,398 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 1032 treesize of output 588 [2024-05-30 17:09:18,352 INFO L349 Elim1Store]: treesize reduction 5, result has 98.8 percent of original size [2024-05-30 17:09:18,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 18 new quantified variables, introduced 45 case distinctions, treesize of input 1480 treesize of output 1659 [2024-05-30 17:09:19,739 INFO L349 Elim1Store]: treesize reduction 8, result has 98.1 percent of original size [2024-05-30 17:09:19,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 18 new quantified variables, introduced 45 case distinctions, treesize of input 1176 treesize of output 1200 [2024-05-30 17:09:21,389 INFO L349 Elim1Store]: treesize reduction 8, result has 98.1 percent of original size [2024-05-30 17:09:21,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 18 new quantified variables, introduced 45 case distinctions, treesize of input 469 treesize of output 721 [2024-05-30 17:10:03,082 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-05-30 17:10:04,163 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-05-30 17:12:59,087 WARN L249 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-05-30 17:12:59,088 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-05-30 17:12:59,095 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 101 [2024-05-30 17:12:59,097 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-05-30 17:12:59,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 17:12:59,290 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:268) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:410) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:394) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:500) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:252) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:324) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:731) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:338) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:341) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:110) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:416) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 69 more [2024-05-30 17:12:59,293 INFO L158 Benchmark]: Toolchain (without parser) took 271253.54ms. Allocated memory was 155.2MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 82.9MB in the beginning and 659.2MB in the end (delta: -576.3MB). Peak memory consumption was 983.2MB. Max. memory is 8.0GB. [2024-05-30 17:12:59,293 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 155.2MB. Free memory is still 86.6MB. There was no memory consumed. Max. memory is 8.0GB. [2024-05-30 17:12:59,294 INFO L158 Benchmark]: CACSL2BoogieTranslator took 210.23ms. Allocated memory was 155.2MB in the beginning and 237.0MB in the end (delta: 81.8MB). Free memory was 82.7MB in the beginning and 202.3MB in the end (delta: -119.6MB). Peak memory consumption was 15.8MB. Max. memory is 8.0GB. [2024-05-30 17:12:59,294 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.63ms. Allocated memory is still 237.0MB. Free memory was 202.3MB in the beginning and 200.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-05-30 17:12:59,294 INFO L158 Benchmark]: Boogie Preprocessor took 28.52ms. Allocated memory is still 237.0MB. Free memory was 200.1MB in the beginning and 205.5MB in the end (delta: -5.4MB). Peak memory consumption was 4.3MB. Max. memory is 8.0GB. [2024-05-30 17:12:59,294 INFO L158 Benchmark]: RCFGBuilder took 365.58ms. Allocated memory is still 237.0MB. Free memory was 205.5MB in the beginning and 186.1MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2024-05-30 17:12:59,294 INFO L158 Benchmark]: TraceAbstraction took 270613.98ms. Allocated memory was 237.0MB in the beginning and 1.6GB in the end (delta: 1.3GB). Free memory was 185.1MB in the beginning and 659.2MB in the end (delta: -474.1MB). Peak memory consumption was 1.0GB. Max. memory is 8.0GB. [2024-05-30 17:12:59,295 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 155.2MB. Free memory is still 86.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 210.23ms. Allocated memory was 155.2MB in the beginning and 237.0MB in the end (delta: 81.8MB). Free memory was 82.7MB in the beginning and 202.3MB in the end (delta: -119.6MB). Peak memory consumption was 15.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 30.63ms. Allocated memory is still 237.0MB. Free memory was 202.3MB in the beginning and 200.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.52ms. Allocated memory is still 237.0MB. Free memory was 200.1MB in the beginning and 205.5MB in the end (delta: -5.4MB). Peak memory consumption was 4.3MB. Max. memory is 8.0GB. * RCFGBuilder took 365.58ms. Allocated memory is still 237.0MB. Free memory was 205.5MB in the beginning and 186.1MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * TraceAbstraction took 270613.98ms. Allocated memory was 237.0MB in the beginning and 1.6GB in the end (delta: 1.3GB). Free memory was 185.1MB in the beginning and 659.2MB in the end (delta: -474.1MB). Peak memory consumption was 1.0GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-05-30 17:12:59,313 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 Received shutdown request...