/root/.sdkman/candidates/java/current/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.prune.known.deadend.states.from.previous.iterations false -s ../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-inc-subseq.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.dynamic-abstractions-a4a1cd3-m [2024-05-30 16:35:13,778 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-30 16:35:13,836 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2024-05-30 16:35:13,839 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-30 16:35:13,839 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-30 16:35:13,839 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-05-30 16:35:13,853 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-30 16:35:13,853 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-30 16:35:13,853 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-30 16:35:13,854 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-30 16:35:13,854 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-30 16:35:13,854 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-30 16:35:13,855 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-30 16:35:13,855 INFO L153 SettingsManager]: * Use SBE=true [2024-05-30 16:35:13,855 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-30 16:35:13,855 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-30 16:35:13,856 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-30 16:35:13,856 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-30 16:35:13,856 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-30 16:35:13,856 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-30 16:35:13,856 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-30 16:35:13,859 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-30 16:35:13,859 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-30 16:35:13,859 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-30 16:35:13,862 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-30 16:35:13,862 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-30 16:35:13,862 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-30 16:35:13,862 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-30 16:35:13,863 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-05-30 16:35:13,863 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-30 16:35:13,863 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-30 16:35:13,863 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-30 16:35:13,863 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-30 16:35:13,863 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2024-05-30 16:35:13,863 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-30 16:35:13,864 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-30 16:35:13,864 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2024-05-30 16:35:13,864 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2024-05-30 16:35:13,864 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-30 16:35:13,864 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-05-30 16:35:13,864 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-30 16:35:13,866 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2024-05-30 16:35:14,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-30 16:35:14,098 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-30 16:35:14,100 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-30 16:35:14,101 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-30 16:35:14,101 INFO L274 PluginConnector]: CDTParser initialized [2024-05-30 16:35:14,103 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-more-inc-subseq.wvr.c [2024-05-30 16:35:15,053 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-30 16:35:15,229 INFO L384 CDTParser]: Found 1 translation units. [2024-05-30 16:35:15,229 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-inc-subseq.wvr.c [2024-05-30 16:35:15,235 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/91be29da6/3e5ac51c497844e9a03661cd1edde276/FLAG22d15b5c2 [2024-05-30 16:35:15,246 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/91be29da6/3e5ac51c497844e9a03661cd1edde276 [2024-05-30 16:35:15,248 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-30 16:35:15,249 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-30 16:35:15,252 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-30 16:35:15,253 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-30 16:35:15,256 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-30 16:35:15,257 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.05 04:35:15" (1/1) ... [2024-05-30 16:35:15,257 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c7cfcbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:35:15, skipping insertion in model container [2024-05-30 16:35:15,258 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.05 04:35:15" (1/1) ... [2024-05-30 16:35:15,280 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-30 16:35:15,441 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-inc-subseq.wvr.c[2924,2937] [2024-05-30 16:35:15,452 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-30 16:35:15,465 INFO L202 MainTranslator]: Completed pre-run [2024-05-30 16:35:15,479 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-inc-subseq.wvr.c[2924,2937] [2024-05-30 16:35:15,481 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-30 16:35:15,491 INFO L206 MainTranslator]: Completed translation [2024-05-30 16:35:15,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:35:15 WrapperNode [2024-05-30 16:35:15,491 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-30 16:35:15,492 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-30 16:35:15,492 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-30 16:35:15,492 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-30 16:35:15,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:35:15" (1/1) ... [2024-05-30 16:35:15,512 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:35:15" (1/1) ... [2024-05-30 16:35:15,532 INFO L138 Inliner]: procedures = 24, calls = 45, calls flagged for inlining = 11, calls inlined = 13, statements flattened = 197 [2024-05-30 16:35:15,532 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-30 16:35:15,533 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-30 16:35:15,533 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-30 16:35:15,533 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-30 16:35:15,574 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:35:15" (1/1) ... [2024-05-30 16:35:15,574 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:35:15" (1/1) ... [2024-05-30 16:35:15,576 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:35:15" (1/1) ... [2024-05-30 16:35:15,576 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:35:15" (1/1) ... [2024-05-30 16:35:15,590 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:35:15" (1/1) ... [2024-05-30 16:35:15,593 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:35:15" (1/1) ... [2024-05-30 16:35:15,594 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:35:15" (1/1) ... [2024-05-30 16:35:15,594 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:35:15" (1/1) ... [2024-05-30 16:35:15,612 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-30 16:35:15,613 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-30 16:35:15,613 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-30 16:35:15,613 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-30 16:35:15,614 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:35:15" (1/1) ... [2024-05-30 16:35:15,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-30 16:35:15,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 16:35:15,656 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 16:35:15,668 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 16:35:15,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-30 16:35:15,693 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-05-30 16:35:15,693 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-05-30 16:35:15,693 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-05-30 16:35:15,693 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-05-30 16:35:15,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-05-30 16:35:15,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-30 16:35:15,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-05-30 16:35:15,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-05-30 16:35:15,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-05-30 16:35:15,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-05-30 16:35:15,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-30 16:35:15,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-30 16:35:15,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-05-30 16:35:15,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-30 16:35:15,697 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 16:35:15,799 INFO L241 CfgBuilder]: Building ICFG [2024-05-30 16:35:15,801 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-30 16:35:16,122 INFO L282 CfgBuilder]: Performing block encoding [2024-05-30 16:35:16,182 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-30 16:35:16,182 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2024-05-30 16:35:16,196 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.05 04:35:16 BoogieIcfgContainer [2024-05-30 16:35:16,196 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-30 16:35:16,198 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-30 16:35:16,198 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-30 16:35:16,201 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-30 16:35:16,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.05 04:35:15" (1/3) ... [2024-05-30 16:35:16,201 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@553a1f5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.05 04:35:16, skipping insertion in model container [2024-05-30 16:35:16,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:35:15" (2/3) ... [2024-05-30 16:35:16,202 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@553a1f5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.05 04:35:16, skipping insertion in model container [2024-05-30 16:35:16,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.05 04:35:16" (3/3) ... [2024-05-30 16:35:16,203 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-inc-subseq.wvr.c [2024-05-30 16:35:16,211 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-05-30 16:35:16,219 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-30 16:35:16,219 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-05-30 16:35:16,219 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-30 16:35:16,272 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-05-30 16:35:16,314 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 16:35:16,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-30 16:35:16,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 16:35:16,316 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 16:35:16,324 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 16:35:16,350 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-30 16:35:16,356 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2024-05-30 16:35:16,361 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;@4b56afa8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 16:35:16,361 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-05-30 16:35:16,367 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 16:35:16,469 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:16,469 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:16,469 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:16,490 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:16,490 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:16,490 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:16,510 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:16,511 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:16,511 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:16,531 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:16,532 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:16,532 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:16,600 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:16,600 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:16,600 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:16,616 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:16,616 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:16,616 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:16,653 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:16,654 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:16,654 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:16,675 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:16,675 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:16,675 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:16,678 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 272 states. [2024-05-30 16:35:16,678 INFO L212 cStratifiedReduction]: Copied states 8 times. [2024-05-30 16:35:16,681 INFO L78 Accepts]: Start accepts. Automaton has currently 273 states, but on-demand construction may add more states Word has length 153 [2024-05-30 16:35:16,683 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 16:35:16,684 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 16:35:16,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 16:35:16,687 INFO L85 PathProgramCache]: Analyzing trace with hash -551626075, now seen corresponding path program 1 times [2024-05-30 16:35:16,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 16:35:16,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27088445] [2024-05-30 16:35:16,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 16:35:16,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 16:35:16,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 16:35:17,009 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-05-30 16:35:17,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 16:35:17,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27088445] [2024-05-30 16:35:17,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27088445] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 16:35:17,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 16:35:17,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-30 16:35:17,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417975438] [2024-05-30 16:35:17,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 16:35:17,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-30 16:35:17,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 16:35:17,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-30 16:35:17,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-30 16:35:17,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:17,037 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 16:35:17,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 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 16:35:17,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:17,040 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 16:35:17,104 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:17,104 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:17,104 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:17,113 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:17,113 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:17,113 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:17,136 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:17,136 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:17,136 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:17,150 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:17,151 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:17,151 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:17,176 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:17,176 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:17,176 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:17,197 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:17,197 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:17,197 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:17,224 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:17,225 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:17,225 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:17,241 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:17,241 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:17,241 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:17,247 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 301 states. [2024-05-30 16:35:17,248 INFO L212 cStratifiedReduction]: Copied states 8 times. [2024-05-30 16:35:17,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:17,248 INFO L78 Accepts]: Start accepts. Automaton has currently 302 states, but on-demand construction may add more states Word has length 147 [2024-05-30 16:35:17,250 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 16:35:17,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-30 16:35:17,251 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 16:35:17,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 16:35:17,251 INFO L85 PathProgramCache]: Analyzing trace with hash 320954938, now seen corresponding path program 1 times [2024-05-30 16:35:17,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 16:35:17,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539375594] [2024-05-30 16:35:17,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 16:35:17,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 16:35:17,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 16:35:17,515 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-30 16:35:17,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 16:35:17,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539375594] [2024-05-30 16:35:17,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539375594] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 16:35:17,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 16:35:17,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-30 16:35:17,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989475095] [2024-05-30 16:35:17,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 16:35:17,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-30 16:35:17,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 16:35:17,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-30 16:35:17,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-30 16:35:17,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:17,519 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 16:35:17,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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 16:35:17,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:17,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:17,520 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 16:35:17,592 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:17,594 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:17,594 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:17,620 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:17,621 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:17,621 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:17,642 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:17,643 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:17,643 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:17,659 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:17,659 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:17,660 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:17,667 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 285 states. [2024-05-30 16:35:17,667 INFO L212 cStratifiedReduction]: Copied states 4 times. [2024-05-30 16:35:17,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:17,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:35:17,668 INFO L78 Accepts]: Start accepts. Automaton has currently 291 states, but on-demand construction may add more states Word has length 156 [2024-05-30 16:35:17,669 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 16:35:17,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-05-30 16:35:17,670 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 16:35:17,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 16:35:17,671 INFO L85 PathProgramCache]: Analyzing trace with hash -577275411, now seen corresponding path program 2 times [2024-05-30 16:35:17,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 16:35:17,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389829872] [2024-05-30 16:35:17,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 16:35:17,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 16:35:17,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 16:35:17,945 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-05-30 16:35:17,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 16:35:17,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389829872] [2024-05-30 16:35:17,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389829872] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 16:35:17,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 16:35:17,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-30 16:35:17,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68851131] [2024-05-30 16:35:17,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 16:35:17,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-30 16:35:17,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 16:35:17,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-30 16:35:17,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-05-30 16:35:17,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:17,947 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 16:35:17,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 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 16:35:17,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:17,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:35:17,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:17,948 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 16:35:18,061 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:18,061 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:18,061 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:18,071 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:18,071 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:18,072 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:18,091 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:18,092 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:18,092 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:18,103 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:18,103 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:18,103 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:18,110 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 293 states. [2024-05-30 16:35:18,110 INFO L212 cStratifiedReduction]: Copied states 4 times. [2024-05-30 16:35:18,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:18,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:35:18,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-30 16:35:18,112 INFO L78 Accepts]: Start accepts. Automaton has currently 299 states, but on-demand construction may add more states Word has length 164 [2024-05-30 16:35:18,112 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 16:35:18,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-05-30 16:35:18,113 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 16:35:18,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 16:35:18,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1486367162, now seen corresponding path program 1 times [2024-05-30 16:35:18,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 16:35:18,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16344637] [2024-05-30 16:35:18,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 16:35:18,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 16:35:18,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 16:35:18,288 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-05-30 16:35:18,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 16:35:18,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16344637] [2024-05-30 16:35:18,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16344637] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 16:35:18,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 16:35:18,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-05-30 16:35:18,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665090932] [2024-05-30 16:35:18,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 16:35:18,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-05-30 16:35:18,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 16:35:18,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-05-30 16:35:18,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-05-30 16:35:18,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:18,292 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 16:35:18,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 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 16:35:18,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:18,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:35:18,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-30 16:35:18,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:18,292 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 16:35:18,421 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:18,421 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:18,421 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:18,428 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:18,428 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:18,428 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:18,441 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:18,442 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:18,442 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:18,450 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:18,450 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:18,451 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:18,474 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:18,474 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:18,475 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:18,483 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:18,483 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:18,484 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:18,497 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:18,498 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:18,498 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:18,507 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:18,507 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:18,507 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:18,514 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 337 states. [2024-05-30 16:35:18,514 INFO L212 cStratifiedReduction]: Copied states 8 times. [2024-05-30 16:35:18,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:18,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:35:18,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-30 16:35:18,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-30 16:35:18,515 INFO L78 Accepts]: Start accepts. Automaton has currently 338 states, but on-demand construction may add more states Word has length 172 [2024-05-30 16:35:18,516 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 16:35:18,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-05-30 16:35:18,517 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 16:35:18,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 16:35:18,520 INFO L85 PathProgramCache]: Analyzing trace with hash -330422142, now seen corresponding path program 1 times [2024-05-30 16:35:18,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 16:35:18,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225997382] [2024-05-30 16:35:18,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 16:35:18,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 16:35:18,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 16:35:18,759 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-05-30 16:35:18,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 16:35:18,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225997382] [2024-05-30 16:35:18,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225997382] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 16:35:18,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1107564084] [2024-05-30 16:35:18,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 16:35:18,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 16:35:18,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 16:35:18,806 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 16:35:18,833 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 16:35:18,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 16:35:18,913 INFO L262 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 9 conjunts are in the unsatisfiable core [2024-05-30 16:35:18,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 16:35:19,264 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-05-30 16:35:19,264 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-30 16:35:19,497 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-05-30 16:35:19,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1107564084] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-30 16:35:19,498 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-30 16:35:19,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 24 [2024-05-30 16:35:19,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305059706] [2024-05-30 16:35:19,498 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-30 16:35:19,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-05-30 16:35:19,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 16:35:19,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-05-30 16:35:19,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=423, Unknown=0, NotChecked=0, Total=552 [2024-05-30 16:35:19,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:19,501 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 16:35:19,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 15.5) internal successors, (372), 24 states have internal predecessors, (372), 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 16:35:19,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:19,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:35:19,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-30 16:35:19,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-30 16:35:19,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:19,502 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 16:35:19,829 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:19,829 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:19,829 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:19,835 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:19,836 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:19,836 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:19,842 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:19,843 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:19,843 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:19,851 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:19,851 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:19,852 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:19,867 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:19,868 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:19,868 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:19,875 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:19,875 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:19,875 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:19,888 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:19,889 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:19,889 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:19,897 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:19,897 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:19,897 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:19,922 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 346 states. [2024-05-30 16:35:19,922 INFO L212 cStratifiedReduction]: Copied states 8 times. [2024-05-30 16:35:19,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:19,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:35:19,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-30 16:35:19,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-30 16:35:19,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-05-30 16:35:19,923 INFO L78 Accepts]: Start accepts. Automaton has currently 347 states, but on-demand construction may add more states Word has length 180 [2024-05-30 16:35:19,924 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 16:35:19,949 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-05-30 16:35:20,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 16:35:20,133 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 16:35:20,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 16:35:20,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1764983106, now seen corresponding path program 2 times [2024-05-30 16:35:20,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 16:35:20,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767069085] [2024-05-30 16:35:20,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 16:35:20,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 16:35:20,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 16:35:20,344 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-05-30 16:35:20,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 16:35:20,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767069085] [2024-05-30 16:35:20,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767069085] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 16:35:20,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386858486] [2024-05-30 16:35:20,345 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-05-30 16:35:20,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 16:35:20,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 16:35:20,346 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 16:35:20,368 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 16:35:20,505 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-05-30 16:35:20,505 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-30 16:35:20,507 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 7 conjunts are in the unsatisfiable core [2024-05-30 16:35:20,510 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 16:35:20,637 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-05-30 16:35:20,637 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-30 16:35:20,785 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-05-30 16:35:20,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1386858486] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-30 16:35:20,785 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-30 16:35:20,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 13 [2024-05-30 16:35:20,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576247378] [2024-05-30 16:35:20,786 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-30 16:35:20,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-05-30 16:35:20,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 16:35:20,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-05-30 16:35:20,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-05-30 16:35:20,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:20,787 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 16:35:20,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 22.76923076923077) internal successors, (296), 13 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-30 16:35:20,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:20,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:35:20,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-30 16:35:20,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-30 16:35:20,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-05-30 16:35:20,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:20,788 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 16:35:21,016 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:21,017 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:21,017 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:21,035 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:21,036 INFO L394 cStratifiedReduction]: Guessed abstraction level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:21,036 INFO L395 cStratifiedReduction]: Actual level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:21,045 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:21,045 INFO L394 cStratifiedReduction]: Guessed abstraction level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:21,045 INFO L395 cStratifiedReduction]: Actual level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:21,053 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:21,053 INFO L394 cStratifiedReduction]: Guessed abstraction level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:21,054 INFO L395 cStratifiedReduction]: Actual level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:21,100 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:21,101 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:21,101 INFO L395 cStratifiedReduction]: Actual level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:21,105 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:21,105 INFO L394 cStratifiedReduction]: Guessed abstraction level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:21,107 INFO L395 cStratifiedReduction]: Actual level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:21,115 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:21,123 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:21,123 INFO L395 cStratifiedReduction]: Actual level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:21,133 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:21,133 INFO L394 cStratifiedReduction]: Guessed abstraction level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:21,133 INFO L395 cStratifiedReduction]: Actual level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:21,143 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:21,144 INFO L394 cStratifiedReduction]: Guessed abstraction level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:21,144 INFO L395 cStratifiedReduction]: Actual level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:21,151 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:21,151 INFO L394 cStratifiedReduction]: Guessed abstraction level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:21,152 INFO L395 cStratifiedReduction]: Actual level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:21,163 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 428 states. [2024-05-30 16:35:21,163 INFO L212 cStratifiedReduction]: Copied states 18 times. [2024-05-30 16:35:21,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:21,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:35:21,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-30 16:35:21,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-30 16:35:21,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-05-30 16:35:21,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-05-30 16:35:21,164 INFO L78 Accepts]: Start accepts. Automaton has currently 433 states, but on-demand construction may add more states Word has length 188 [2024-05-30 16:35:21,165 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 16:35:21,179 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-05-30 16:35:21,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 16:35:21,371 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 16:35:21,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 16:35:21,371 INFO L85 PathProgramCache]: Analyzing trace with hash 893004209, now seen corresponding path program 3 times [2024-05-30 16:35:21,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 16:35:21,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919394068] [2024-05-30 16:35:21,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 16:35:21,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 16:35:21,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 16:35:21,633 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-05-30 16:35:21,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 16:35:21,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919394068] [2024-05-30 16:35:21,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919394068] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 16:35:21,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385286590] [2024-05-30 16:35:21,634 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-05-30 16:35:21,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 16:35:21,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 16:35:21,635 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 16:35:21,665 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 16:35:21,949 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-05-30 16:35:21,949 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-30 16:35:21,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 15 conjunts are in the unsatisfiable core [2024-05-30 16:35:21,954 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 16:35:22,182 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-05-30 16:35:22,183 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-30 16:35:22,445 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-05-30 16:35:22,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [385286590] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-30 16:35:22,445 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-30 16:35:22,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 10] total 18 [2024-05-30 16:35:22,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161235777] [2024-05-30 16:35:22,446 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-30 16:35:22,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-05-30 16:35:22,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 16:35:22,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-05-30 16:35:22,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2024-05-30 16:35:22,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:22,447 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 16:35:22,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 11.444444444444445) internal successors, (206), 18 states have internal predecessors, (206), 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 16:35:22,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:22,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:35:22,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-30 16:35:22,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-30 16:35:22,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-05-30 16:35:22,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-05-30 16:35:22,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:22,448 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 16:35:22,629 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:22,630 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:22,630 INFO L395 cStratifiedReduction]: Actual level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:22,634 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:22,634 INFO L394 cStratifiedReduction]: Guessed abstraction level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:22,634 INFO L395 cStratifiedReduction]: Actual level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:22,677 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:22,677 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:22,677 INFO L395 cStratifiedReduction]: Actual level: [~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~N~0, ~i~0, ~start~0] [2024-05-30 16:35:22,681 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:22,681 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~N~0, ~i~0, ~start~0] [2024-05-30 16:35:22,681 INFO L395 cStratifiedReduction]: Actual level: [~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~N~0, ~i~0, ~start~0] [2024-05-30 16:35:22,698 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:22,699 INFO L394 cStratifiedReduction]: Guessed abstraction level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~N~0, ~i~0, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:22,699 INFO L395 cStratifiedReduction]: Actual level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~N~0, ~i~0, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:22,713 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:22,713 INFO L394 cStratifiedReduction]: Guessed abstraction level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~N~0, ~i~0, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:22,713 INFO L395 cStratifiedReduction]: Actual level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~N~0, ~i~0, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:22,734 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 427 states. [2024-05-30 16:35:22,735 INFO L212 cStratifiedReduction]: Copied states 14 times. [2024-05-30 16:35:22,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:22,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:35:22,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-30 16:35:22,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-30 16:35:22,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-05-30 16:35:22,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-05-30 16:35:22,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-05-30 16:35:22,735 INFO L78 Accepts]: Start accepts. Automaton has currently 448 states, but on-demand construction may add more states Word has length 207 [2024-05-30 16:35:22,736 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 16:35:22,743 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 16:35:22,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 16:35:22,947 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 16:35:22,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 16:35:22,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1599387920, now seen corresponding path program 4 times [2024-05-30 16:35:22,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 16:35:22,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260679027] [2024-05-30 16:35:22,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 16:35:22,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 16:35:22,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 16:35:23,277 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 33 proven. 12 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-05-30 16:35:23,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 16:35:23,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260679027] [2024-05-30 16:35:23,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260679027] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 16:35:23,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019839941] [2024-05-30 16:35:23,278 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-05-30 16:35:23,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 16:35:23,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 16:35:23,279 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 16:35:23,281 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 16:35:23,376 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-05-30 16:35:23,376 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-30 16:35:23,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 12 conjunts are in the unsatisfiable core [2024-05-30 16:35:23,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 16:35:23,717 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-05-30 16:35:23,717 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-30 16:35:24,066 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-05-30 16:35:24,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2019839941] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-30 16:35:24,067 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-30 16:35:24,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 13] total 35 [2024-05-30 16:35:24,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175521296] [2024-05-30 16:35:24,067 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-30 16:35:24,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-05-30 16:35:24,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 16:35:24,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-05-30 16:35:24,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=1021, Unknown=0, NotChecked=0, Total=1190 [2024-05-30 16:35:24,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:24,069 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 16:35:24,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 12.314285714285715) internal successors, (431), 35 states have internal predecessors, (431), 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 16:35:24,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:24,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:35:24,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-30 16:35:24,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-30 16:35:24,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-05-30 16:35:24,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-05-30 16:35:24,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-05-30 16:35:24,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:24,070 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 16:35:24,962 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:24,963 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:24,963 INFO L395 cStratifiedReduction]: Actual level: [~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~N~0, ~i~0, ~start~0] [2024-05-30 16:35:24,966 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:24,967 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~N~0, ~i~0, ~start~0] [2024-05-30 16:35:24,967 INFO L395 cStratifiedReduction]: Actual level: [~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~N~0, ~i~0, ~start~0] [2024-05-30 16:35:24,979 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:24,979 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:24,979 INFO L395 cStratifiedReduction]: Actual level: [~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~N~0, ~i~0, ~start~0] [2024-05-30 16:35:24,982 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:24,983 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~N~0, ~i~0, ~start~0] [2024-05-30 16:35:24,983 INFO L395 cStratifiedReduction]: Actual level: [~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~N~0, ~i~0, ~start~0] [2024-05-30 16:35:24,998 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:24,998 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~N~0, ~i~0, ~start~0] [2024-05-30 16:35:24,998 INFO L395 cStratifiedReduction]: Actual level: [~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~N~0, ~i~0, ~start~0] [2024-05-30 16:35:25,008 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:25,008 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~N~0, ~i~0, ~start~0] [2024-05-30 16:35:25,008 INFO L395 cStratifiedReduction]: Actual level: [~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~N~0, ~i~0, ~start~0] [2024-05-30 16:35:25,034 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 445 states. [2024-05-30 16:35:25,034 INFO L212 cStratifiedReduction]: Copied states 14 times. [2024-05-30 16:35:25,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:25,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:35:25,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-30 16:35:25,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-30 16:35:25,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-05-30 16:35:25,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-05-30 16:35:25,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-05-30 16:35:25,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-05-30 16:35:25,035 INFO L78 Accepts]: Start accepts. Automaton has currently 466 states, but on-demand construction may add more states Word has length 223 [2024-05-30 16:35:25,036 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 16:35:25,060 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-05-30 16:35:25,241 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,SelfDestructingSolverStorable7 [2024-05-30 16:35:25,241 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 16:35:25,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 16:35:25,241 INFO L85 PathProgramCache]: Analyzing trace with hash 657837115, now seen corresponding path program 5 times [2024-05-30 16:35:25,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 16:35:25,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239953003] [2024-05-30 16:35:25,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 16:35:25,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 16:35:25,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 16:35:28,985 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 9 proven. 66 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-05-30 16:35:28,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 16:35:28,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239953003] [2024-05-30 16:35:28,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239953003] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 16:35:28,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17202751] [2024-05-30 16:35:28,985 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-05-30 16:35:28,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 16:35:28,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 16:35:28,987 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 16:35:28,989 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 16:35:29,122 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-05-30 16:35:29,122 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-30 16:35:29,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 49 conjunts are in the unsatisfiable core [2024-05-30 16:35:29,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 16:35:42,648 INFO L349 Elim1Store]: treesize reduction 62, result has 70.6 percent of original size [2024-05-30 16:35:42,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 121 treesize of output 170 [2024-05-30 16:35:42,814 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 2 proven. 43 refuted. 3 times theorem prover too weak. 54 trivial. 0 not checked. [2024-05-30 16:35:42,814 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-30 16:36:14,468 WARN L293 SmtUtils]: Spent 27.94s on a formula simplification. DAG size of input: 1302 DAG size of output: 1280 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-05-30 16:36:14,469 INFO L349 Elim1Store]: treesize reduction 60, result has 98.8 percent of original size [2024-05-30 16:36:14,471 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 26 select indices, 26 select index equivalence classes, 0 disjoint index pairs (out of 325 index pairs), introduced 26 new quantified variables, introduced 325 case distinctions, treesize of input 481 treesize of output 5127 [2024-05-30 16:39:43,034 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 16:39:43,040 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 16:39:43,041 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-05-30 16:39:43,049 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 16:39:43,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 16:39:43,243 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 16:39:43,247 INFO L158 Benchmark]: Toolchain (without parser) took 267997.68ms. Allocated memory was 190.8MB in the beginning and 985.7MB in the end (delta: 794.8MB). Free memory was 121.1MB in the beginning and 640.9MB in the end (delta: -519.9MB). Peak memory consumption was 589.9MB. Max. memory is 8.0GB. [2024-05-30 16:39:43,247 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 190.8MB. Free memory is still 122.9MB. There was no memory consumed. Max. memory is 8.0GB. [2024-05-30 16:39:43,247 INFO L158 Benchmark]: CACSL2BoogieTranslator took 239.26ms. Allocated memory is still 190.8MB. Free memory was 120.8MB in the beginning and 108.6MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2024-05-30 16:39:43,248 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.98ms. Allocated memory is still 190.8MB. Free memory was 108.6MB in the beginning and 106.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-05-30 16:39:43,248 INFO L158 Benchmark]: Boogie Preprocessor took 79.79ms. Allocated memory was 190.8MB in the beginning and 317.7MB in the end (delta: 126.9MB). Free memory was 106.3MB in the beginning and 287.8MB in the end (delta: -181.6MB). Peak memory consumption was 7.9MB. Max. memory is 8.0GB. [2024-05-30 16:39:43,248 INFO L158 Benchmark]: RCFGBuilder took 583.54ms. Allocated memory is still 317.7MB. Free memory was 287.8MB in the beginning and 261.6MB in the end (delta: 26.2MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2024-05-30 16:39:43,248 INFO L158 Benchmark]: TraceAbstraction took 267047.79ms. Allocated memory was 317.7MB in the beginning and 985.7MB in the end (delta: 667.9MB). Free memory was 260.6MB in the beginning and 640.9MB in the end (delta: -380.3MB). Peak memory consumption was 601.9MB. Max. memory is 8.0GB. [2024-05-30 16:39:43,249 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 190.8MB. Free memory is still 122.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 239.26ms. Allocated memory is still 190.8MB. Free memory was 120.8MB in the beginning and 108.6MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 39.98ms. Allocated memory is still 190.8MB. Free memory was 108.6MB in the beginning and 106.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 79.79ms. Allocated memory was 190.8MB in the beginning and 317.7MB in the end (delta: 126.9MB). Free memory was 106.3MB in the beginning and 287.8MB in the end (delta: -181.6MB). Peak memory consumption was 7.9MB. Max. memory is 8.0GB. * RCFGBuilder took 583.54ms. Allocated memory is still 317.7MB. Free memory was 287.8MB in the beginning and 261.6MB in the end (delta: 26.2MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * TraceAbstraction took 267047.79ms. Allocated memory was 317.7MB in the beginning and 985.7MB in the end (delta: 667.9MB). Free memory was 260.6MB in the beginning and 640.9MB in the end (delta: -380.3MB). Peak memory consumption was 601.9MB. 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 16:39:43,265 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...