/root/.sdkman/candidates/java/current/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.prune.known.deadend.states.from.previous.iterations false -s ../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/unroll-5.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.dynamic-abstractions-e23131f-m [2024-05-03 05:37:39,038 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-03 05:37:39,103 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2024-05-03 05:37:39,108 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-03 05:37:39,108 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-03 05:37:39,109 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-05-03 05:37:39,142 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-03 05:37:39,143 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-03 05:37:39,143 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-03 05:37:39,144 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-03 05:37:39,144 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-03 05:37:39,144 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-03 05:37:39,145 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-03 05:37:39,145 INFO L153 SettingsManager]: * Use SBE=true [2024-05-03 05:37:39,145 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-03 05:37:39,145 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-03 05:37:39,146 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-03 05:37:39,146 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-03 05:37:39,146 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-03 05:37:39,146 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-03 05:37:39,146 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-03 05:37:39,160 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-03 05:37:39,160 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-03 05:37:39,160 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-03 05:37:39,161 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-03 05:37:39,161 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-03 05:37:39,161 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-03 05:37:39,161 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-03 05:37:39,161 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-05-03 05:37:39,162 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-03 05:37:39,162 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-03 05:37:39,162 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-03 05:37:39,162 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-03 05:37:39,162 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2024-05-03 05:37:39,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-03 05:37:39,163 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-03 05:37:39,163 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2024-05-03 05:37:39,163 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2024-05-03 05:37:39,163 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-03 05:37:39,163 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-05-03 05:37:39,164 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-03 05:37:39,164 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2024-05-03 05:37:39,430 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-03 05:37:39,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-03 05:37:39,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-03 05:37:39,453 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-03 05:37:39,454 INFO L274 PluginConnector]: CDTParser initialized [2024-05-03 05:37:39,455 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/unroll-5.wvr.c [2024-05-03 05:37:40,511 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-03 05:37:40,668 INFO L384 CDTParser]: Found 1 translation units. [2024-05-03 05:37:40,669 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-5.wvr.c [2024-05-03 05:37:40,677 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/b3e03c0eb/cccc5fb0362a4bf7a20c2133b5594f1a/FLAG2cf86e577 [2024-05-03 05:37:40,693 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/b3e03c0eb/cccc5fb0362a4bf7a20c2133b5594f1a [2024-05-03 05:37:40,695 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-03 05:37:40,696 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-03 05:37:40,697 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-03 05:37:40,697 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-03 05:37:40,702 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-03 05:37:40,702 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.05 05:37:40" (1/1) ... [2024-05-03 05:37:40,703 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40753a14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:37:40, skipping insertion in model container [2024-05-03 05:37:40,703 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.05 05:37:40" (1/1) ... [2024-05-03 05:37:40,721 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-03 05:37:40,847 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-5.wvr.c[2644,2657] [2024-05-03 05:37:40,853 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-03 05:37:40,859 INFO L202 MainTranslator]: Completed pre-run [2024-05-03 05:37:40,873 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-5.wvr.c[2644,2657] [2024-05-03 05:37:40,875 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-03 05:37:40,885 INFO L206 MainTranslator]: Completed translation [2024-05-03 05:37:40,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:37:40 WrapperNode [2024-05-03 05:37:40,886 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-03 05:37:40,887 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-03 05:37:40,887 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-03 05:37:40,887 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-03 05:37:40,895 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:37:40" (1/1) ... [2024-05-03 05:37:40,918 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:37:40" (1/1) ... [2024-05-03 05:37:40,965 INFO L138 Inliner]: procedures = 24, calls = 38, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 167 [2024-05-03 05:37:40,965 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-03 05:37:40,966 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-03 05:37:40,966 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-03 05:37:40,966 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-03 05:37:40,977 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:37:40" (1/1) ... [2024-05-03 05:37:40,977 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:37:40" (1/1) ... [2024-05-03 05:37:40,988 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:37:40" (1/1) ... [2024-05-03 05:37:40,989 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:37:40" (1/1) ... [2024-05-03 05:37:40,993 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:37:40" (1/1) ... [2024-05-03 05:37:40,996 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:37:40" (1/1) ... [2024-05-03 05:37:40,997 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:37:40" (1/1) ... [2024-05-03 05:37:40,998 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:37:40" (1/1) ... [2024-05-03 05:37:41,000 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-03 05:37:41,000 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-03 05:37:41,001 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-03 05:37:41,001 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-03 05:37:41,001 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:37:40" (1/1) ... [2024-05-03 05:37:41,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-03 05:37:41,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 05:37:41,077 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-05-03 05:37:41,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-05-03 05:37:41,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-03 05:37:41,133 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-05-03 05:37:41,133 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-05-03 05:37:41,134 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-05-03 05:37:41,134 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-05-03 05:37:41,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-05-03 05:37:41,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-03 05:37:41,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-05-03 05:37:41,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-05-03 05:37:41,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-03 05:37:41,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-03 05:37:41,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-05-03 05:37:41,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-03 05:37:41,137 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-05-03 05:37:41,235 INFO L241 CfgBuilder]: Building ICFG [2024-05-03 05:37:41,236 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-03 05:37:41,465 INFO L282 CfgBuilder]: Performing block encoding [2024-05-03 05:37:41,475 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-03 05:37:41,475 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2024-05-03 05:37:41,476 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 05:37:41 BoogieIcfgContainer [2024-05-03 05:37:41,476 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-03 05:37:41,479 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-03 05:37:41,479 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-03 05:37:41,481 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-03 05:37:41,481 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.05 05:37:40" (1/3) ... [2024-05-03 05:37:41,482 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc80fa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 05:37:41, skipping insertion in model container [2024-05-03 05:37:41,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:37:40" (2/3) ... [2024-05-03 05:37:41,482 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc80fa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 05:37:41, skipping insertion in model container [2024-05-03 05:37:41,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 05:37:41" (3/3) ... [2024-05-03 05:37:41,483 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-5.wvr.c [2024-05-03 05:37:41,490 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-05-03 05:37:41,496 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-03 05:37:41,497 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-05-03 05:37:41,497 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-03 05:37:41,566 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-05-03 05:37:41,608 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-03 05:37:41,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-03 05:37:41,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 05:37:41,626 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-03 05:37:41,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-05-03 05:37:41,690 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-03 05:37:41,696 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2024-05-03 05:37:41,701 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;@7c652aec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-03 05:37:41,701 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-05-03 05:37:41,706 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 05:37:41,862 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:41,862 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:41,862 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:41,937 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:41,937 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:41,938 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:41,998 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:41,998 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:41,999 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:42,043 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:42,044 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:42,044 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:42,083 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:42,083 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:42,083 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:42,124 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:42,125 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:42,125 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:42,152 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:42,152 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:42,152 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:42,202 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:42,202 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:42,202 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:42,221 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:42,221 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:42,221 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:42,273 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:42,273 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:42,273 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:42,303 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:42,303 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:42,303 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:42,323 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:42,323 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:42,324 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:42,462 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:42,463 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:42,463 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:42,468 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 1101 states. [2024-05-03 05:37:42,468 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-03 05:37:42,471 INFO L78 Accepts]: Start accepts. Automaton has currently 1170 states, but on-demand construction may add more states Word has length 100 [2024-05-03 05:37:42,476 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 05:37:42,476 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 05:37:42,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 05:37:42,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1959970304, now seen corresponding path program 1 times [2024-05-03 05:37:42,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 05:37:42,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458871730] [2024-05-03 05:37:42,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 05:37:42,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 05:37:42,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:37:42,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 05:37:42,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 05:37:42,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458871730] [2024-05-03 05:37:42,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458871730] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-03 05:37:42,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-03 05:37:42,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-03 05:37:42,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727505378] [2024-05-03 05:37:42,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-03 05:37:42,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-03 05:37:42,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 05:37:42,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-03 05:37:42,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-03 05:37:42,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:37:42,809 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 05:37:42,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 50.0) internal successors, (100), 2 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-03 05:37:42,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:37:42,811 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 05:37:42,851 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:42,851 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:42,852 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:42,867 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:42,868 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:42,868 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:42,888 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:42,888 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:42,888 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:42,909 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:42,910 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:42,910 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:42,924 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:42,925 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:42,925 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:42,981 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:42,981 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:42,981 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:43,007 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:43,007 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:43,007 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:43,024 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:43,024 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:43,025 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:43,045 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:43,046 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:43,046 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:43,077 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:43,077 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:43,077 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:43,100 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:43,100 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:43,101 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:43,119 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:43,120 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:43,120 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:43,216 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:43,216 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:43,216 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:43,222 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 1193 states. [2024-05-03 05:37:43,223 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-03 05:37:43,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:37:43,224 INFO L78 Accepts]: Start accepts. Automaton has currently 1325 states, but on-demand construction may add more states Word has length 95 [2024-05-03 05:37:43,225 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 05:37:43,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-03 05:37:43,227 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 05:37:43,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 05:37:43,232 INFO L85 PathProgramCache]: Analyzing trace with hash -163319715, now seen corresponding path program 1 times [2024-05-03 05:37:43,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 05:37:43,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922293554] [2024-05-03 05:37:43,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 05:37:43,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 05:37:43,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:37:43,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 05:37:43,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 05:37:43,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922293554] [2024-05-03 05:37:43,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922293554] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-03 05:37:43,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-03 05:37:43,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-05-03 05:37:43,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860091209] [2024-05-03 05:37:43,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-03 05:37:43,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-05-03 05:37:43,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 05:37:43,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-05-03 05:37:43,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-05-03 05:37:43,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:37:43,572 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 05:37:43,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-03 05:37:43,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:37:43,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:37:43,573 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 05:37:43,691 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:43,691 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:43,692 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:43,705 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:43,705 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:43,705 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:43,721 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:43,721 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:43,722 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:43,737 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:43,737 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:43,737 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:43,767 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:43,769 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:43,769 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:43,800 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:43,800 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:43,800 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:43,822 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:43,822 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:43,823 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:43,834 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:43,834 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:43,834 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:43,846 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:43,846 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:43,846 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:43,868 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:43,868 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:43,868 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:43,885 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:43,885 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:43,885 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:43,897 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:43,897 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:43,898 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:43,955 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:43,956 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:43,956 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:43,968 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 1201 states. [2024-05-03 05:37:43,968 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-03 05:37:43,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:37:43,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-03 05:37:43,969 INFO L78 Accepts]: Start accepts. Automaton has currently 1333 states, but on-demand construction may add more states Word has length 103 [2024-05-03 05:37:43,971 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 05:37:43,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-05-03 05:37:43,971 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 05:37:43,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 05:37:43,973 INFO L85 PathProgramCache]: Analyzing trace with hash -907715393, now seen corresponding path program 1 times [2024-05-03 05:37:43,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 05:37:43,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884858737] [2024-05-03 05:37:43,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 05:37:43,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 05:37:44,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:37:44,206 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-05-03 05:37:44,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 05:37:44,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884858737] [2024-05-03 05:37:44,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884858737] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-03 05:37:44,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-03 05:37:44,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-03 05:37:44,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859564644] [2024-05-03 05:37:44,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-03 05:37:44,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-03 05:37:44,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 05:37:44,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-03 05:37:44,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-05-03 05:37:44,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:37:44,208 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 05:37:44,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-03 05:37:44,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:37:44,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-03 05:37:44,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:37:44,208 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 05:37:44,283 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:44,283 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:44,283 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:44,300 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:44,300 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:44,300 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:44,324 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:44,324 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:44,324 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:44,340 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:44,340 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:44,340 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:44,351 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:44,351 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:44,351 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:44,361 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:44,362 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:44,362 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:44,382 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:44,382 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:44,382 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:44,396 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:44,396 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:44,396 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:44,407 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:44,407 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:44,408 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:44,497 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:44,498 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:44,498 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:44,513 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 1007 states. [2024-05-03 05:37:44,514 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-03 05:37:44,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:37:44,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-03 05:37:44,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:37:44,514 INFO L78 Accepts]: Start accepts. Automaton has currently 1139 states, but on-demand construction may add more states Word has length 116 [2024-05-03 05:37:44,516 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 05:37:44,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-05-03 05:37:44,516 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 05:37:44,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 05:37:44,517 INFO L85 PathProgramCache]: Analyzing trace with hash -2145559636, now seen corresponding path program 1 times [2024-05-03 05:37:44,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 05:37:44,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004542417] [2024-05-03 05:37:44,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 05:37:44,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 05:37:44,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:37:44,724 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-05-03 05:37:44,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 05:37:44,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004542417] [2024-05-03 05:37:44,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004542417] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-03 05:37:44,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923946344] [2024-05-03 05:37:44,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 05:37:44,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 05:37:44,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 05:37:44,761 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-03 05:37:44,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-05-03 05:37:44,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:37:44,845 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 6 conjunts are in the unsatisfiable core [2024-05-03 05:37:44,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 05:37:44,923 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-05-03 05:37:44,923 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 05:37:44,992 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-05-03 05:37:44,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1923946344] provided 1 perfect and 1 imperfect interpolant sequences [2024-05-03 05:37:44,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-05-03 05:37:44,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 7 [2024-05-03 05:37:44,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219444821] [2024-05-03 05:37:44,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-03 05:37:44,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-05-03 05:37:44,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 05:37:44,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-05-03 05:37:44,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-05-03 05:37:44,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:37:44,998 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 05:37:44,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-03 05:37:44,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:37:44,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-03 05:37:44,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:37:44,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:37:44,998 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 05:37:45,041 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:45,041 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:45,041 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:37:45,057 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:45,057 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:45,057 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:45,072 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:45,074 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:45,074 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:45,093 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:45,093 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:45,094 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:45,110 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:45,111 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:45,111 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:45,132 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:45,132 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:45,132 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:45,146 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:45,146 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:45,146 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:45,160 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:45,160 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:45,160 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:45,229 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:45,229 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:45,230 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:45,256 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:45,256 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:45,256 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:45,270 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:45,270 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:45,270 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:45,326 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:45,327 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:45,327 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:45,333 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 1161 states. [2024-05-03 05:37:45,333 INFO L212 cStratifiedReduction]: Copied states 136 times. [2024-05-03 05:37:45,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:37:45,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-03 05:37:45,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:37:45,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-03 05:37:45,334 INFO L78 Accepts]: Start accepts. Automaton has currently 1158 states, but on-demand construction may add more states Word has length 177 [2024-05-03 05:37:45,334 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 05:37:45,341 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-05-03 05:37:45,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 05:37:45,541 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 05:37:45,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 05:37:45,542 INFO L85 PathProgramCache]: Analyzing trace with hash -31921271, now seen corresponding path program 1 times [2024-05-03 05:37:45,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 05:37:45,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096062249] [2024-05-03 05:37:45,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 05:37:45,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 05:37:45,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:37:45,922 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-05-03 05:37:45,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 05:37:45,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096062249] [2024-05-03 05:37:45,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096062249] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-03 05:37:45,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962639860] [2024-05-03 05:37:45,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 05:37:45,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 05:37:45,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 05:37:45,924 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-03 05:37:45,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-05-03 05:37:46,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:37:46,050 INFO L262 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 37 conjunts are in the unsatisfiable core [2024-05-03 05:37:46,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 05:37:46,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-05-03 05:37:46,972 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 05:37:46,972 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 05:37:47,539 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-05-03 05:37:47,540 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2024-05-03 05:37:48,163 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 05:37:48,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962639860] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-03 05:37:48,163 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-03 05:37:48,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 23, 18] total 41 [2024-05-03 05:37:48,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14334722] [2024-05-03 05:37:48,164 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-03 05:37:48,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-05-03 05:37:48,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 05:37:48,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-05-03 05:37:48,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1485, Unknown=0, NotChecked=0, Total=1640 [2024-05-03 05:37:48,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:37:48,167 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 05:37:48,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 11.609756097560975) internal successors, (476), 41 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-03 05:37:48,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:37:48,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-03 05:37:48,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:37:48,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-03 05:37:48,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:37:48,168 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 05:37:49,496 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:49,496 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:49,496 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:49,510 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:49,510 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:49,510 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:49,773 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:49,773 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:49,773 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:49,785 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:49,785 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:49,785 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:49,840 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:49,840 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:49,840 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:49,850 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:49,850 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:49,850 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:49,871 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:49,871 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:49,871 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:49,886 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:49,886 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:49,886 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:49,928 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:49,928 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:49,928 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:49,942 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:49,942 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:49,942 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:49,961 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:49,962 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:49,962 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:49,986 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:49,986 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:49,986 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:49,996 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:49,996 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:49,996 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:50,007 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:50,007 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:50,007 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:50,026 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:50,026 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:50,026 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:50,040 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:50,041 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:50,041 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:50,051 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:50,051 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:50,051 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:50,108 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:50,108 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:50,108 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:50,161 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 1639 states. [2024-05-03 05:37:50,161 INFO L212 cStratifiedReduction]: Copied states 272 times. [2024-05-03 05:37:50,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:37:50,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-03 05:37:50,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:37:50,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-03 05:37:50,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-05-03 05:37:50,161 INFO L78 Accepts]: Start accepts. Automaton has currently 1505 states, but on-demand construction may add more states Word has length 198 [2024-05-03 05:37:50,162 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 05:37:50,170 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-05-03 05:37:50,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 05:37:50,370 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 05:37:50,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 05:37:50,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1014535572, now seen corresponding path program 2 times [2024-05-03 05:37:50,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 05:37:50,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085207629] [2024-05-03 05:37:50,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 05:37:50,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 05:37:50,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:37:51,037 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-05-03 05:37:51,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 05:37:51,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085207629] [2024-05-03 05:37:51,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085207629] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-03 05:37:51,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222337958] [2024-05-03 05:37:51,038 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-05-03 05:37:51,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 05:37:51,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 05:37:51,039 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-03 05:37:51,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-05-03 05:37:51,266 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-05-03 05:37:51,267 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-03 05:37:51,269 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 17 conjunts are in the unsatisfiable core [2024-05-03 05:37:51,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 05:37:52,659 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-05-03 05:37:52,660 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 05:37:58,585 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-05-03 05:37:58,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222337958] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-03 05:37:58,585 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-03 05:37:58,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 28 [2024-05-03 05:37:58,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178574186] [2024-05-03 05:37:58,585 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-03 05:37:58,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-05-03 05:37:58,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 05:37:58,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-05-03 05:37:58,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=580, Unknown=1, NotChecked=0, Total=756 [2024-05-03 05:37:58,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:37:58,587 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 05:37:58,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 9.571428571428571) internal successors, (268), 28 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-03 05:37:58,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:37:58,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-03 05:37:58,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:37:58,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-03 05:37:58,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2024-05-03 05:37:58,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:37:58,587 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 05:37:59,212 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:59,224 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:59,224 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:59,233 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:59,233 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:59,233 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:59,320 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:59,321 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:37:59,321 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:59,330 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:37:59,330 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:37:59,330 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:38:02,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 05:38:02,204 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:38:02,204 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:38:02,204 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:38:02,213 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:38:02,213 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:38:02,213 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:38:02,722 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:38:02,723 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:38:02,723 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:38:02,731 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:38:02,731 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:38:02,732 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:38:02,925 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:38:02,925 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:38:02,925 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:38:02,934 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:38:02,934 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:38:02,934 INFO L370 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-03 05:38:03,688 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 1072 states. [2024-05-03 05:38:03,688 INFO L212 cStratifiedReduction]: Copied states 340 times. [2024-05-03 05:38:03,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:38:03,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-03 05:38:03,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:38:03,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-03 05:38:03,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-05-03 05:38:03,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-05-03 05:38:03,689 INFO L78 Accepts]: Start accepts. Automaton has currently 802 states, but on-demand construction may add more states Word has length 237 [2024-05-03 05:38:03,691 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 05:38:03,696 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-05-03 05:38:03,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 05:38:03,897 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 05:38:03,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 05:38:03,898 INFO L85 PathProgramCache]: Analyzing trace with hash -2059681621, now seen corresponding path program 3 times [2024-05-03 05:38:03,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 05:38:03,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951639072] [2024-05-03 05:38:03,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 05:38:03,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 05:38:04,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:38:16,013 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 1 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 05:38:16,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 05:38:16,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951639072] [2024-05-03 05:38:16,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951639072] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-03 05:38:16,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1655803788] [2024-05-03 05:38:16,014 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-05-03 05:38:16,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 05:38:16,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 05:38:16,015 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-03 05:38:16,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-05-03 05:38:16,416 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-05-03 05:38:16,416 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-03 05:38:16,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 121 conjunts are in the unsatisfiable core [2024-05-03 05:38:16,424 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 05:38:17,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-05-03 05:38:18,185 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-05-03 05:38:18,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-05-03 05:38:24,269 INFO L349 Elim1Store]: treesize reduction 63, result has 22.2 percent of original size [2024-05-03 05:38:24,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 91 treesize of output 56 [2024-05-03 05:38:24,504 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 05:38:24,504 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 05:38:43,850 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-03 05:38:43,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 1196 treesize of output 680 [2024-05-03 05:38:44,697 INFO L349 Elim1Store]: treesize reduction 5, result has 98.8 percent of original size [2024-05-03 05:38:44,698 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 18 new quantified variables, introduced 45 case distinctions, treesize of input 3594 treesize of output 3373 [2024-05-03 05:38:46,092 INFO L349 Elim1Store]: treesize reduction 8, result has 98.1 percent of original size [2024-05-03 05:38:46,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 18 new quantified variables, introduced 45 case distinctions, treesize of input 562 treesize of output 778 [2024-05-03 05:42:28,045 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-05-03 05:42:29,938 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-05-03 05:42:31,238 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-05-03 05:42:32,365 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-05-03 05:42:36,155 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-05-03 05:42:37,720 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-05-03 05:42:39,744 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-05-03 05:42:40,746 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-05-03 05:42:42,735 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-05-03 05:42:44,550 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-05-03 05:42:50,259 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-05-03 05:42:51,766 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-05-03 05:42:53,182 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-05-03 05:43:04,132 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 [2024-05-03 05:43:04,132 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") [2024-05-03 05:43:04,133 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-05-03 05:43:04,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-05-03 05:43:04,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-05-03 05:43:04,340 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:140) 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 [2024-05-03 05:43:04,353 INFO L158 Benchmark]: Toolchain (without parser) took 323657.02ms. Allocated memory was 152.0MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 88.1MB in the beginning and 598.0MB in the end (delta: -509.9MB). Peak memory consumption was 941.8MB. Max. memory is 8.0GB. [2024-05-03 05:43:04,354 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 152.0MB. Free memory is still 131.0MB. There was no memory consumed. Max. memory is 8.0GB. [2024-05-03 05:43:04,354 INFO L158 Benchmark]: CACSL2BoogieTranslator took 188.97ms. Allocated memory is still 152.0MB. Free memory was 87.9MB in the beginning and 120.7MB in the end (delta: -32.7MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2024-05-03 05:43:04,354 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.81ms. Allocated memory is still 152.0MB. Free memory was 120.7MB in the beginning and 118.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-05-03 05:43:04,354 INFO L158 Benchmark]: Boogie Preprocessor took 34.08ms. Allocated memory is still 152.0MB. Free memory was 118.6MB in the beginning and 116.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-05-03 05:43:04,354 INFO L158 Benchmark]: RCFGBuilder took 475.45ms. Allocated memory is still 152.0MB. Free memory was 116.8MB in the beginning and 98.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2024-05-03 05:43:04,354 INFO L158 Benchmark]: TraceAbstraction took 322874.38ms. Allocated memory was 152.0MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 96.9MB in the beginning and 598.0MB in the end (delta: -501.1MB). Peak memory consumption was 950.8MB. Max. memory is 8.0GB. [2024-05-03 05:43:04,355 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 152.0MB. Free memory is still 131.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 188.97ms. Allocated memory is still 152.0MB. Free memory was 87.9MB in the beginning and 120.7MB in the end (delta: -32.7MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 78.81ms. Allocated memory is still 152.0MB. Free memory was 120.7MB in the beginning and 118.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.08ms. Allocated memory is still 152.0MB. Free memory was 118.6MB in the beginning and 116.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 475.45ms. Allocated memory is still 152.0MB. Free memory was 116.8MB in the beginning and 98.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * TraceAbstraction took 322874.38ms. Allocated memory was 152.0MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 96.9MB in the beginning and 598.0MB in the end (delta: -501.1MB). Peak memory consumption was 950.8MB. 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. [2024-05-03 05:43:04,380 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...