/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/chl-poker-hand-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.dynamic-abstractions-a4a1cd3-m [2024-05-30 15:55:46,742 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-30 15:55:46,777 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2024-05-30 15:55:46,781 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-30 15:55:46,781 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-30 15:55:46,781 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-05-30 15:55:46,795 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-30 15:55:46,796 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-30 15:55:46,796 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-30 15:55:46,796 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-30 15:55:46,797 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-30 15:55:46,797 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-30 15:55:46,797 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-30 15:55:46,797 INFO L153 SettingsManager]: * Use SBE=true [2024-05-30 15:55:46,798 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-30 15:55:46,798 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-30 15:55:46,798 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-30 15:55:46,798 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-30 15:55:46,798 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-30 15:55:46,799 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-30 15:55:46,799 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-30 15:55:46,799 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-30 15:55:46,799 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-30 15:55:46,800 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-30 15:55:46,800 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-30 15:55:46,800 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-30 15:55:46,800 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-30 15:55:46,800 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-30 15:55:46,801 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-05-30 15:55:46,801 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-30 15:55:46,801 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-30 15:55:46,801 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-30 15:55:46,801 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-30 15:55:46,801 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2024-05-30 15:55:46,802 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-30 15:55:46,802 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-30 15:55:46,802 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2024-05-30 15:55:46,802 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2024-05-30 15:55:46,802 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-30 15:55:46,802 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-05-30 15:55:46,802 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-30 15:55:46,803 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2024-05-30 15:55:46,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-30 15:55:47,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-30 15:55:47,029 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-30 15:55:47,030 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-30 15:55:47,032 INFO L274 PluginConnector]: CDTParser initialized [2024-05-30 15:55:47,034 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/chl-poker-hand-symm.wvr.c [2024-05-30 15:55:48,110 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-30 15:55:48,284 INFO L384 CDTParser]: Found 1 translation units. [2024-05-30 15:55:48,285 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-poker-hand-symm.wvr.c [2024-05-30 15:55:48,292 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/b8b812cfb/72f7d50fb37e46ecaf058130bcbdc19b/FLAGafbf24b0a [2024-05-30 15:55:48,307 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/b8b812cfb/72f7d50fb37e46ecaf058130bcbdc19b [2024-05-30 15:55:48,309 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-30 15:55:48,310 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-30 15:55:48,312 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-30 15:55:48,313 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-30 15:55:48,316 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-30 15:55:48,317 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.05 03:55:48" (1/1) ... [2024-05-30 15:55:48,318 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f7f5b1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:55:48, skipping insertion in model container [2024-05-30 15:55:48,318 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.05 03:55:48" (1/1) ... [2024-05-30 15:55:48,352 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-30 15:55:48,591 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/chl-poker-hand-symm.wvr.c[12821,12834] [2024-05-30 15:55:48,613 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-30 15:55:48,622 INFO L202 MainTranslator]: Completed pre-run [2024-05-30 15:55:48,680 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/chl-poker-hand-symm.wvr.c[12821,12834] [2024-05-30 15:55:48,683 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-30 15:55:48,701 INFO L206 MainTranslator]: Completed translation [2024-05-30 15:55:48,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:55:48 WrapperNode [2024-05-30 15:55:48,703 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-30 15:55:48,722 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-30 15:55:48,723 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-30 15:55:48,723 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-30 15:55:48,728 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:55:48" (1/1) ... [2024-05-30 15:55:48,754 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:55:48" (1/1) ... [2024-05-30 15:55:48,815 INFO L138 Inliner]: procedures = 25, calls = 307, calls flagged for inlining = 69, calls inlined = 97, statements flattened = 1553 [2024-05-30 15:55:48,815 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-30 15:55:48,816 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-30 15:55:48,816 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-30 15:55:48,816 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-30 15:55:48,842 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:55:48" (1/1) ... [2024-05-30 15:55:48,843 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:55:48" (1/1) ... [2024-05-30 15:55:48,862 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:55:48" (1/1) ... [2024-05-30 15:55:48,862 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:55:48" (1/1) ... [2024-05-30 15:55:48,894 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:55:48" (1/1) ... [2024-05-30 15:55:48,910 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:55:48" (1/1) ... [2024-05-30 15:55:48,931 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:55:48" (1/1) ... [2024-05-30 15:55:48,936 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:55:48" (1/1) ... [2024-05-30 15:55:48,951 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-30 15:55:48,951 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-30 15:55:48,951 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-30 15:55:48,952 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-30 15:55:48,952 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:55:48" (1/1) ... [2024-05-30 15:55:48,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-30 15:55:48,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 15:55:49,002 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-05-30 15:55:49,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-05-30 15:55:49,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-30 15:55:49,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-30 15:55:49,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-05-30 15:55:49,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-05-30 15:55:49,043 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-05-30 15:55:49,043 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-05-30 15:55:49,043 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-05-30 15:55:49,043 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-05-30 15:55:49,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-05-30 15:55:49,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-05-30 15:55:49,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-05-30 15:55:49,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-05-30 15:55:49,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-30 15:55:49,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-30 15:55:49,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-30 15:55:49,047 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-05-30 15:55:49,214 INFO L241 CfgBuilder]: Building ICFG [2024-05-30 15:55:49,215 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-30 15:55:50,437 INFO L282 CfgBuilder]: Performing block encoding [2024-05-30 15:55:51,551 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-30 15:55:51,551 INFO L309 CfgBuilder]: Removed 12 assume(true) statements. [2024-05-30 15:55:51,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.05 03:55:51 BoogieIcfgContainer [2024-05-30 15:55:51,551 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-30 15:55:51,553 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-30 15:55:51,553 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-30 15:55:51,555 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-30 15:55:51,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.05 03:55:48" (1/3) ... [2024-05-30 15:55:51,556 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60bdb9c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.05 03:55:51, skipping insertion in model container [2024-05-30 15:55:51,556 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:55:48" (2/3) ... [2024-05-30 15:55:51,556 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60bdb9c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.05 03:55:51, skipping insertion in model container [2024-05-30 15:55:51,556 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.05 03:55:51" (3/3) ... [2024-05-30 15:55:51,557 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-poker-hand-symm.wvr.c [2024-05-30 15:55:51,565 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-05-30 15:55:51,572 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-30 15:55:51,572 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-05-30 15:55:51,572 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-30 15:55:51,852 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-05-30 15:55:51,903 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 15:55:51,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-30 15:55:51,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 15:55:51,919 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-30 15:55:51,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-05-30 15:55:51,974 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-30 15:55:51,980 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2024-05-30 15:55:51,985 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;@2a2288a8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 15:55:51,985 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-05-30 15:55:51,990 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 15:55:52,051 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 399 states. [2024-05-30 15:55:52,051 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-30 15:55:52,054 INFO L78 Accepts]: Start accepts. Automaton has currently 400 states, but on-demand construction may add more states Word has length 314 [2024-05-30 15:55:52,057 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 15:55:52,058 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 15:55:52,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 15:55:52,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1757109360, now seen corresponding path program 1 times [2024-05-30 15:55:52,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 15:55:52,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571629694] [2024-05-30 15:55:52,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 15:55:52,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 15:55:52,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 15:55:52,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-30 15:55:52,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 15:55:52,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571629694] [2024-05-30 15:55:52,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571629694] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 15:55:52,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 15:55:52,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-30 15:55:52,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928876872] [2024-05-30 15:55:52,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 15:55:52,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-30 15:55:52,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 15:55:52,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-30 15:55:52,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-30 15:55:52,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:55:52,688 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 15:55:52,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 157.0) internal successors, (314), 2 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-30 15:55:52,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:55:52,692 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 15:55:52,763 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 426 states. [2024-05-30 15:55:52,763 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-30 15:55:52,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:55:52,763 INFO L78 Accepts]: Start accepts. Automaton has currently 427 states, but on-demand construction may add more states Word has length 297 [2024-05-30 15:55:52,768 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 15:55:52,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-30 15:55:52,769 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 15:55:52,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 15:55:52,769 INFO L85 PathProgramCache]: Analyzing trace with hash -293345519, now seen corresponding path program 1 times [2024-05-30 15:55:52,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 15:55:52,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026398891] [2024-05-30 15:55:52,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 15:55:52,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 15:55:52,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 15:55:53,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-30 15:55:53,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 15:55:53,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026398891] [2024-05-30 15:55:53,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026398891] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 15:55:53,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 15:55:53,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-05-30 15:55:53,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61436379] [2024-05-30 15:55:53,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 15:55:53,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-05-30 15:55:53,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 15:55:53,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-05-30 15:55:53,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-05-30 15:55:53,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:55:53,173 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 15:55:53,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.4) internal successors, (297), 5 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-30 15:55:53,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:55:53,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:55:53,174 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 15:55:53,418 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 458 states. [2024-05-30 15:55:53,418 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-30 15:55:53,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:55:53,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-30 15:55:53,419 INFO L78 Accepts]: Start accepts. Automaton has currently 459 states, but on-demand construction may add more states Word has length 329 [2024-05-30 15:55:53,420 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 15:55:53,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-05-30 15:55:53,420 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 15:55:53,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 15:55:53,420 INFO L85 PathProgramCache]: Analyzing trace with hash 2024858364, now seen corresponding path program 1 times [2024-05-30 15:55:53,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 15:55:53,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763046815] [2024-05-30 15:55:53,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 15:55:53,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 15:55:53,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 15:55:53,793 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-05-30 15:55:53,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 15:55:53,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763046815] [2024-05-30 15:55:53,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763046815] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 15:55:53,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [743375453] [2024-05-30 15:55:53,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 15:55:53,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 15:55:53,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 15:55:53,868 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-30 15:55:53,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-05-30 15:55:54,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 15:55:54,345 INFO L262 TraceCheckSpWp]: Trace formula consists of 716 conjuncts, 4 conjunts are in the unsatisfiable core [2024-05-30 15:55:54,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 15:55:54,430 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-05-30 15:55:54,430 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-05-30 15:55:54,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [743375453] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 15:55:54,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-05-30 15:55:54,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2024-05-30 15:55:54,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145075927] [2024-05-30 15:55:54,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 15:55:54,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-05-30 15:55:54,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 15:55:54,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-05-30 15:55:54,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-05-30 15:55:54,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:55:54,432 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 15:55:54,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.8) internal successors, (329), 5 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-30 15:55:54,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:55:54,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-30 15:55:54,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:55:54,433 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 15:55:54,597 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 490 states. [2024-05-30 15:55:54,597 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-30 15:55:54,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:55:54,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-30 15:55:54,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-30 15:55:54,598 INFO L78 Accepts]: Start accepts. Automaton has currently 491 states, but on-demand construction may add more states Word has length 361 [2024-05-30 15:55:54,599 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 15:55:54,606 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-05-30 15:55:54,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-05-30 15:55:54,806 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 15:55:54,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 15:55:54,806 INFO L85 PathProgramCache]: Analyzing trace with hash -335468515, now seen corresponding path program 1 times [2024-05-30 15:55:54,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 15:55:54,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460852703] [2024-05-30 15:55:54,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 15:55:54,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 15:55:54,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 15:55:55,091 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-05-30 15:55:55,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 15:55:55,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460852703] [2024-05-30 15:55:55,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460852703] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 15:55:55,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61185856] [2024-05-30 15:55:55,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 15:55:55,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 15:55:55,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 15:55:55,093 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-30 15:55:55,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-05-30 15:55:55,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 15:55:55,633 INFO L262 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 6 conjunts are in the unsatisfiable core [2024-05-30 15:55:55,638 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 15:55:55,716 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-05-30 15:55:55,716 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-30 15:55:55,792 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-05-30 15:55:55,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61185856] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-30 15:55:55,792 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-30 15:55:55,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2024-05-30 15:55:55,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032178780] [2024-05-30 15:55:55,793 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-30 15:55:55,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-05-30 15:55:55,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 15:55:55,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-05-30 15:55:55,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2024-05-30 15:55:55,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:55:55,795 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 15:55:55,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 28.88235294117647) internal successors, (491), 17 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-30 15:55:55,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:55:55,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-30 15:55:55,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-30 15:55:55,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:55:55,796 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 15:55:56,311 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 578 states. [2024-05-30 15:55:56,312 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-30 15:55:56,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:55:56,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-30 15:55:56,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-30 15:55:56,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-05-30 15:55:56,312 INFO L78 Accepts]: Start accepts. Automaton has currently 579 states, but on-demand construction may add more states Word has length 489 [2024-05-30 15:55:56,314 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 15:55:56,324 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-05-30 15:55:56,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 15:55:56,522 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 15:55:56,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 15:55:56,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1958904373, now seen corresponding path program 2 times [2024-05-30 15:55:56,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 15:55:56,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167278459] [2024-05-30 15:55:56,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 15:55:56,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 15:55:56,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 15:55:56,999 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2024-05-30 15:55:56,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 15:55:57,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167278459] [2024-05-30 15:55:57,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167278459] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 15:55:57,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394007921] [2024-05-30 15:55:57,002 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-05-30 15:55:57,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 15:55:57,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 15:55:57,003 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-30 15:55:57,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-05-30 15:55:57,463 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-05-30 15:55:57,464 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-30 15:55:57,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 15 conjunts are in the unsatisfiable core [2024-05-30 15:55:57,474 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 15:55:58,424 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-05-30 15:55:58,424 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-05-30 15:55:58,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1394007921] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 15:55:58,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-05-30 15:55:58,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2024-05-30 15:55:58,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382985401] [2024-05-30 15:55:58,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 15:55:58,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-05-30 15:55:58,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 15:55:58,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-05-30 15:55:58,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2024-05-30 15:55:58,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:55:58,427 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 15:55:58,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 45.125) internal successors, (361), 8 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-30 15:55:58,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:55:58,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-30 15:55:58,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-30 15:55:58,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-05-30 15:55:58,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:55:58,427 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 15:55:58,617 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 594 states. [2024-05-30 15:55:58,617 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-30 15:55:58,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:55:58,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-30 15:55:58,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-30 15:55:58,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-05-30 15:55:58,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-30 15:55:58,618 INFO L78 Accepts]: Start accepts. Automaton has currently 595 states, but on-demand construction may add more states Word has length 493 [2024-05-30 15:55:58,620 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 15:55:58,627 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-05-30 15:55:58,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 15:55:58,827 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 15:55:58,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 15:55:58,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1916210060, now seen corresponding path program 1 times [2024-05-30 15:55:58,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 15:55:58,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791115230] [2024-05-30 15:55:58,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 15:55:58,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 15:55:58,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 15:55:59,370 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2024-05-30 15:55:59,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 15:55:59,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791115230] [2024-05-30 15:55:59,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791115230] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 15:55:59,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825761217] [2024-05-30 15:55:59,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 15:55:59,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 15:55:59,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 15:55:59,390 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-30 15:55:59,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-05-30 15:55:59,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 15:55:59,845 INFO L262 TraceCheckSpWp]: Trace formula consists of 1011 conjuncts, 10 conjunts are in the unsatisfiable core [2024-05-30 15:55:59,849 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 15:55:59,991 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2024-05-30 15:55:59,991 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-30 15:56:00,102 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2024-05-30 15:56:00,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825761217] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-30 15:56:00,102 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-30 15:56:00,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2024-05-30 15:56:00,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943614938] [2024-05-30 15:56:00,103 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-30 15:56:00,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-05-30 15:56:00,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 15:56:00,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-05-30 15:56:00,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2024-05-30 15:56:00,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:56:00,105 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 15:56:00,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 19.772727272727273) internal successors, (435), 22 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-30 15:56:00,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:56:00,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-30 15:56:00,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-30 15:56:00,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-05-30 15:56:00,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-05-30 15:56:00,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:56:00,106 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 15:56:00,810 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 698 states. [2024-05-30 15:56:00,810 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-30 15:56:00,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:56:00,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-30 15:56:00,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-30 15:56:00,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-05-30 15:56:00,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-30 15:56:00,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-05-30 15:56:00,811 INFO L78 Accepts]: Start accepts. Automaton has currently 699 states, but on-demand construction may add more states Word has length 589 [2024-05-30 15:56:00,815 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 15:56:00,824 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-05-30 15:56:01,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-05-30 15:56:01,023 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 15:56:01,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 15:56:01,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1577560377, now seen corresponding path program 2 times [2024-05-30 15:56:01,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 15:56:01,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026638143] [2024-05-30 15:56:01,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 15:56:01,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 15:56:01,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 15:56:01,682 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2024-05-30 15:56:01,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 15:56:01,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026638143] [2024-05-30 15:56:01,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026638143] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 15:56:01,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098578885] [2024-05-30 15:56:01,683 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-05-30 15:56:01,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 15:56:01,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 15:56:01,684 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-30 15:56:01,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-05-30 15:56:02,117 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-05-30 15:56:02,118 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-30 15:56:02,121 INFO L262 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 4 conjunts are in the unsatisfiable core [2024-05-30 15:56:02,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 15:56:02,152 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2024-05-30 15:56:02,153 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-05-30 15:56:02,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098578885] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 15:56:02,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-05-30 15:56:02,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [15] total 16 [2024-05-30 15:56:02,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706418312] [2024-05-30 15:56:02,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 15:56:02,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-30 15:56:02,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 15:56:02,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-30 15:56:02,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2024-05-30 15:56:02,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:56:02,155 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 15:56:02,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-30 15:56:02,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:56:02,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-30 15:56:02,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-30 15:56:02,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-05-30 15:56:02,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-05-30 15:56:02,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-05-30 15:56:02,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:56:02,156 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 15:56:02,618 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 15:56:02,618 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 15:56:02,618 INFO L395 cStratifiedReduction]: Actual level: [~i1_9~0, ~break_10~0] [2024-05-30 15:56:02,876 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 15:56:02,876 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~i1_9~0, ~break_10~0] [2024-05-30 15:56:02,876 INFO L395 cStratifiedReduction]: Actual level: [~i1_9~0, ~break_10~0] [2024-05-30 15:56:03,585 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 15:56:03,585 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 15:56:03,585 INFO L395 cStratifiedReduction]: Actual level: [~i1_9~0, ~break_10~0] [2024-05-30 15:56:03,785 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 15:56:03,785 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~i1_9~0, ~break_10~0] [2024-05-30 15:56:03,786 INFO L395 cStratifiedReduction]: Actual level: [~i1_9~0, ~break_10~0] [2024-05-30 15:56:04,289 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 15:56:04,289 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~i1_9~0, ~break_10~0] [2024-05-30 15:56:04,289 INFO L395 cStratifiedReduction]: Actual level: [~i1_9~0, ~break_10~0] [2024-05-30 15:56:04,652 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 15:56:04,652 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~i1_9~0, ~break_10~0] [2024-05-30 15:56:04,652 INFO L395 cStratifiedReduction]: Actual level: [~i1_9~0, ~break_10~0] [2024-05-30 15:56:04,763 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 830 states. [2024-05-30 15:56:04,763 INFO L212 cStratifiedReduction]: Copied states 13 times. [2024-05-30 15:56:04,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:56:04,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-30 15:56:04,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-30 15:56:04,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-05-30 15:56:04,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-05-30 15:56:04,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-05-30 15:56:04,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 15:56:04,764 INFO L78 Accepts]: Start accepts. Automaton has currently 878 states, but on-demand construction may add more states Word has length 589 [2024-05-30 15:56:04,766 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 15:56:04,773 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-05-30 15:56:04,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 15:56:04,974 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 15:56:04,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 15:56:04,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1495152555, now seen corresponding path program 1 times [2024-05-30 15:56:04,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 15:56:04,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831959341] [2024-05-30 15:56:04,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 15:56:04,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 15:56:05,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 15:56:05,618 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2024-05-30 15:56:05,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 15:56:05,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831959341] [2024-05-30 15:56:05,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831959341] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 15:56:05,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119661090] [2024-05-30 15:56:05,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 15:56:05,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 15:56:05,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 15:56:05,621 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-30 15:56:05,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-05-30 15:56:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 15:56:06,137 INFO L262 TraceCheckSpWp]: Trace formula consists of 1179 conjuncts, 14 conjunts are in the unsatisfiable core [2024-05-30 15:56:06,143 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 15:56:06,356 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2024-05-30 15:56:06,356 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-30 15:56:06,550 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2024-05-30 15:56:06,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2119661090] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-30 15:56:06,550 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-30 15:56:06,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 39 [2024-05-30 15:56:06,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531277311] [2024-05-30 15:56:06,551 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-30 15:56:06,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-05-30 15:56:06,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 15:56:06,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-05-30 15:56:06,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=345, Invalid=1137, Unknown=0, NotChecked=0, Total=1482 [2024-05-30 15:56:06,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:56:06,554 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 15:56:06,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 12.794871794871796) internal successors, (499), 39 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-30 15:56:06,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:56:06,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-30 15:56:06,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-30 15:56:06,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-05-30 15:56:06,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-05-30 15:56:06,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-05-30 15:56:06,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 15:56:06,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:56:06,555 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 15:56:07,923 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 15:56:07,924 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 15:56:07,924 INFO L395 cStratifiedReduction]: Actual level: [~i1_9~0, ~break_10~0] [2024-05-30 15:56:08,065 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 15:56:08,065 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~i1_9~0, ~break_10~0] [2024-05-30 15:56:08,065 INFO L395 cStratifiedReduction]: Actual level: [~i1_9~0, ~break_10~0] [2024-05-30 15:56:08,660 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 15:56:08,660 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 15:56:08,660 INFO L395 cStratifiedReduction]: Actual level: [~i1_9~0, ~break_10~0] [2024-05-30 15:56:08,863 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 15:56:08,863 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~i1_9~0, ~break_10~0] [2024-05-30 15:56:08,863 INFO L395 cStratifiedReduction]: Actual level: [~i1_9~0, ~break_10~0] [2024-05-30 15:56:09,298 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 15:56:09,298 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~i1_9~0, ~break_10~0] [2024-05-30 15:56:09,298 INFO L395 cStratifiedReduction]: Actual level: [~i1_9~0, ~break_10~0] [2024-05-30 15:56:09,680 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 15:56:09,681 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~i1_9~0, ~break_10~0] [2024-05-30 15:56:09,681 INFO L395 cStratifiedReduction]: Actual level: [~i1_9~0, ~break_10~0] [2024-05-30 15:56:09,768 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 928 states. [2024-05-30 15:56:09,768 INFO L212 cStratifiedReduction]: Copied states 13 times. [2024-05-30 15:56:09,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:56:09,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-30 15:56:09,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-30 15:56:09,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-05-30 15:56:09,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-05-30 15:56:09,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-05-30 15:56:09,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 15:56:09,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-05-30 15:56:09,769 INFO L78 Accepts]: Start accepts. Automaton has currently 976 states, but on-demand construction may add more states Word has length 685 [2024-05-30 15:56:09,780 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 15:56:09,787 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-05-30 15:56:09,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-05-30 15:56:09,988 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 15:56:09,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 15:56:09,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1056741771, now seen corresponding path program 2 times [2024-05-30 15:56:09,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 15:56:09,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44934077] [2024-05-30 15:56:09,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 15:56:09,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 15:56:10,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 15:56:11,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1282 backedges. 0 proven. 451 refuted. 0 times theorem prover too weak. 831 trivial. 0 not checked. [2024-05-30 15:56:11,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 15:56:11,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44934077] [2024-05-30 15:56:11,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44934077] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 15:56:11,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [339304514] [2024-05-30 15:56:11,107 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-05-30 15:56:11,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 15:56:11,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 15:56:11,108 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-30 15:56:11,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-05-30 15:56:11,588 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-05-30 15:56:11,588 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-30 15:56:11,591 INFO L262 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 4 conjunts are in the unsatisfiable core [2024-05-30 15:56:11,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 15:56:11,632 INFO L134 CoverageAnalysis]: Checked inductivity of 1282 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1282 trivial. 0 not checked. [2024-05-30 15:56:11,632 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-05-30 15:56:11,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [339304514] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 15:56:11,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-05-30 15:56:11,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [27] total 28 [2024-05-30 15:56:11,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484741335] [2024-05-30 15:56:11,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 15:56:11,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-30 15:56:11,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 15:56:11,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-30 15:56:11,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=580, Unknown=0, NotChecked=0, Total=756 [2024-05-30 15:56:11,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:56:11,635 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 15:56:11,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-30 15:56:11,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:56:11,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-30 15:56:11,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-30 15:56:11,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-05-30 15:56:11,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-05-30 15:56:11,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-05-30 15:56:11,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 15:56:11,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2024-05-30 15:56:11,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:56:11,636 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 15:56:12,005 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 15:56:12,006 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 15:56:12,006 INFO L395 cStratifiedReduction]: Actual level: [~break_15~0, ~i1_14~0] [2024-05-30 15:56:12,152 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 15:56:12,152 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~break_15~0, ~i1_14~0] [2024-05-30 15:56:12,152 INFO L395 cStratifiedReduction]: Actual level: [~break_15~0, ~i1_14~0] [2024-05-30 15:56:12,721 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 15:56:12,721 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 15:56:12,721 INFO L395 cStratifiedReduction]: Actual level: [~break_15~0, ~i1_14~0] [2024-05-30 15:56:12,920 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 15:56:12,921 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~break_15~0, ~i1_14~0] [2024-05-30 15:56:12,921 INFO L395 cStratifiedReduction]: Actual level: [~break_15~0, ~i1_14~0] [2024-05-30 15:56:13,366 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 15:56:13,366 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~i1_9~0, ~break_10~0, ~break_15~0, ~i1_14~0] [2024-05-30 15:56:13,366 INFO L395 cStratifiedReduction]: Actual level: [~i1_9~0, ~break_10~0, ~break_15~0, ~i1_14~0] [2024-05-30 15:56:13,711 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 15:56:13,711 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~i1_9~0, ~break_10~0, ~break_15~0, ~i1_14~0] [2024-05-30 15:56:13,711 INFO L395 cStratifiedReduction]: Actual level: [~i1_9~0, ~break_10~0, ~break_15~0, ~i1_14~0] [2024-05-30 15:56:13,789 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 937 states. [2024-05-30 15:56:13,789 INFO L212 cStratifiedReduction]: Copied states 13 times. [2024-05-30 15:56:13,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:56:13,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-30 15:56:13,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-30 15:56:13,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-05-30 15:56:13,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-05-30 15:56:13,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-05-30 15:56:13,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 15:56:13,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-05-30 15:56:13,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 15:56:13,790 INFO L78 Accepts]: Start accepts. Automaton has currently 985 states, but on-demand construction may add more states Word has length 689 [2024-05-30 15:56:13,793 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 15:56:13,802 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-05-30 15:56:14,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 15:56:14,000 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 15:56:14,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 15:56:14,001 INFO L85 PathProgramCache]: Analyzing trace with hash -666269726, now seen corresponding path program 1 times [2024-05-30 15:56:14,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 15:56:14,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453295077] [2024-05-30 15:56:14,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 15:56:14,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 15:56:14,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 15:56:15,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1284 backedges. 0 proven. 451 refuted. 0 times theorem prover too weak. 833 trivial. 0 not checked. [2024-05-30 15:56:15,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 15:56:15,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453295077] [2024-05-30 15:56:15,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453295077] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 15:56:15,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893148518] [2024-05-30 15:56:15,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 15:56:15,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 15:56:15,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 15:56:15,141 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-30 15:56:15,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-05-30 15:56:15,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 15:56:15,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 1362 conjuncts, 26 conjunts are in the unsatisfiable core [2024-05-30 15:56:15,744 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 15:56:16,260 INFO L134 CoverageAnalysis]: Checked inductivity of 1284 backedges. 0 proven. 451 refuted. 0 times theorem prover too weak. 833 trivial. 0 not checked. [2024-05-30 15:56:16,260 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-30 15:56:16,616 INFO L134 CoverageAnalysis]: Checked inductivity of 1284 backedges. 0 proven. 451 refuted. 0 times theorem prover too weak. 833 trivial. 0 not checked. [2024-05-30 15:56:16,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893148518] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-30 15:56:16,616 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-30 15:56:16,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 54 [2024-05-30 15:56:16,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851603037] [2024-05-30 15:56:16,617 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-30 15:56:16,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2024-05-30 15:56:16,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 15:56:16,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2024-05-30 15:56:16,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=610, Invalid=2252, Unknown=0, NotChecked=0, Total=2862 [2024-05-30 15:56:16,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:56:16,620 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 15:56:16,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 10.481481481481481) internal successors, (566), 54 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-30 15:56:16,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:56:16,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-30 15:56:16,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-30 15:56:16,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-05-30 15:56:16,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-05-30 15:56:16,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-05-30 15:56:16,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 15:56:16,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2024-05-30 15:56:16,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 15:56:16,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:56:16,621 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 15:56:18,232 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 15:56:18,232 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 15:56:18,232 INFO L395 cStratifiedReduction]: Actual level: [~break_15~0, ~i1_14~0] [2024-05-30 15:56:18,367 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 15:56:18,367 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~break_15~0, ~i1_14~0] [2024-05-30 15:56:18,367 INFO L395 cStratifiedReduction]: Actual level: [~break_15~0, ~i1_14~0] [2024-05-30 15:56:18,931 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 15:56:18,931 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 15:56:18,931 INFO L395 cStratifiedReduction]: Actual level: [~break_15~0, ~i1_14~0] [2024-05-30 15:56:19,125 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 15:56:19,126 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~break_15~0, ~i1_14~0] [2024-05-30 15:56:19,126 INFO L395 cStratifiedReduction]: Actual level: [~break_15~0, ~i1_14~0] [2024-05-30 15:56:19,586 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 15:56:19,586 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~i1_9~0, ~break_10~0, ~break_15~0, ~i1_14~0] [2024-05-30 15:56:19,586 INFO L395 cStratifiedReduction]: Actual level: [~i1_9~0, ~break_10~0, ~break_15~0, ~i1_14~0] [2024-05-30 15:56:19,936 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 15:56:19,936 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~i1_9~0, ~break_10~0, ~break_15~0, ~i1_14~0] [2024-05-30 15:56:19,936 INFO L395 cStratifiedReduction]: Actual level: [~i1_9~0, ~break_10~0, ~break_15~0, ~i1_14~0] [2024-05-30 15:56:20,018 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 971 states. [2024-05-30 15:56:20,019 INFO L212 cStratifiedReduction]: Copied states 13 times. [2024-05-30 15:56:20,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:56:20,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-30 15:56:20,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-30 15:56:20,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-05-30 15:56:20,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-05-30 15:56:20,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-05-30 15:56:20,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 15:56:20,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-05-30 15:56:20,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 15:56:20,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-05-30 15:56:20,019 INFO L78 Accepts]: Start accepts. Automaton has currently 1019 states, but on-demand construction may add more states Word has length 721 [2024-05-30 15:56:20,023 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 15:56:20,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-05-30 15:56:20,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-05-30 15:56:20,231 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 15:56:20,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 15:56:20,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1910667394, now seen corresponding path program 2 times [2024-05-30 15:56:20,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 15:56:20,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845926805] [2024-05-30 15:56:20,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 15:56:20,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 15:56:21,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 15:56:37,383 INFO L134 CoverageAnalysis]: Checked inductivity of 1656 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1652 trivial. 0 not checked. [2024-05-30 15:56:37,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 15:56:37,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845926805] [2024-05-30 15:56:37,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845926805] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 15:56:37,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263075039] [2024-05-30 15:56:37,384 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-05-30 15:56:37,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 15:56:37,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 15:56:37,389 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-30 15:56:37,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-05-30 15:56:38,046 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-05-30 15:56:38,046 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-30 15:56:38,054 INFO L262 TraceCheckSpWp]: Trace formula consists of 1418 conjuncts, 46 conjunts are in the unsatisfiable core [2024-05-30 15:56:38,066 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 15:56:40,882 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-30 15:56:40,882 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 60 [2024-05-30 15:56:40,908 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-30 15:56:40,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 56 [2024-05-30 15:56:41,030 INFO L134 CoverageAnalysis]: Checked inductivity of 1656 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1652 trivial. 0 not checked. [2024-05-30 15:56:41,030 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-30 15:57:01,215 WARN L293 SmtUtils]: Spent 16.49s on a formula simplification. DAG size of input: 991 DAG size of output: 985 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-05-30 15:57:01,215 INFO L349 Elim1Store]: treesize reduction 13, result has 99.4 percent of original size [2024-05-30 15:57:01,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 20 select indices, 20 select index equivalence classes, 0 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 190 case distinctions, treesize of input 1157 treesize of output 3048 [2024-05-30 16:07:09,459 WARN L249 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-05-30 16:07:09,463 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-05-30 16:07:09,474 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-05-30 16:07:09,474 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2024-05-30 16:07:09,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-05-30 16:07:09,672 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.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.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.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) ... 86 more [2024-05-30 16:07:09,676 INFO L158 Benchmark]: Toolchain (without parser) took 681366.08ms. Allocated memory was 260.0MB in the beginning and 2.3GB in the end (delta: 2.0GB). Free memory was 190.3MB in the beginning and 2.0GB in the end (delta: -1.8GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2024-05-30 16:07:09,677 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 165.7MB. Free memory is still 132.9MB. There was no memory consumed. Max. memory is 8.0GB. [2024-05-30 16:07:09,677 INFO L158 Benchmark]: CACSL2BoogieTranslator took 409.27ms. Allocated memory is still 260.0MB. Free memory was 190.0MB in the beginning and 228.8MB in the end (delta: -38.8MB). Peak memory consumption was 26.9MB. Max. memory is 8.0GB. [2024-05-30 16:07:09,677 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.95ms. Allocated memory is still 260.0MB. Free memory was 228.8MB in the beginning and 221.0MB in the end (delta: 7.9MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2024-05-30 16:07:09,677 INFO L158 Benchmark]: Boogie Preprocessor took 135.01ms. Allocated memory is still 260.0MB. Free memory was 221.0MB in the beginning and 213.1MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2024-05-30 16:07:09,677 INFO L158 Benchmark]: RCFGBuilder took 2600.04ms. Allocated memory was 260.0MB in the beginning and 445.6MB in the end (delta: 185.6MB). Free memory was 213.1MB in the beginning and 200.8MB in the end (delta: 12.3MB). Peak memory consumption was 196.3MB. Max. memory is 8.0GB. [2024-05-30 16:07:09,677 INFO L158 Benchmark]: TraceAbstraction took 678123.19ms. Allocated memory was 445.6MB in the beginning and 2.3GB in the end (delta: 1.8GB). Free memory was 199.8MB in the beginning and 2.0GB in the end (delta: -1.8GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2024-05-30 16:07:09,678 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 165.7MB. Free memory is still 132.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 409.27ms. Allocated memory is still 260.0MB. Free memory was 190.0MB in the beginning and 228.8MB in the end (delta: -38.8MB). Peak memory consumption was 26.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 92.95ms. Allocated memory is still 260.0MB. Free memory was 228.8MB in the beginning and 221.0MB in the end (delta: 7.9MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 135.01ms. Allocated memory is still 260.0MB. Free memory was 221.0MB in the beginning and 213.1MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * RCFGBuilder took 2600.04ms. Allocated memory was 260.0MB in the beginning and 445.6MB in the end (delta: 185.6MB). Free memory was 213.1MB in the beginning and 200.8MB in the end (delta: 12.3MB). Peak memory consumption was 196.3MB. Max. memory is 8.0GB. * TraceAbstraction took 678123.19ms. Allocated memory was 445.6MB in the beginning and 2.3GB in the end (delta: 1.8GB). Free memory was 199.8MB in the beginning and 2.0GB in the end (delta: -1.8GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-05-30 16:07:09,692 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...