/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/goblint-regression/36-apron_21-traces-cluster-based_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.dynamic-abstractions-a4a1cd3-m [2024-05-30 15:26:15,559 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-30 15:26:15,641 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2024-05-30 15:26:15,647 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-30 15:26:15,647 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-30 15:26:15,648 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-05-30 15:26:15,672 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-30 15:26:15,673 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-30 15:26:15,673 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-30 15:26:15,677 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-30 15:26:15,677 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-30 15:26:15,677 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-30 15:26:15,677 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-30 15:26:15,679 INFO L153 SettingsManager]: * Use SBE=true [2024-05-30 15:26:15,679 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-30 15:26:15,679 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-30 15:26:15,679 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-30 15:26:15,680 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-30 15:26:15,680 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-30 15:26:15,680 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-30 15:26:15,680 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-30 15:26:15,681 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-30 15:26:15,681 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-30 15:26:15,682 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-30 15:26:15,682 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-30 15:26:15,682 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-30 15:26:15,682 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-30 15:26:15,682 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-30 15:26:15,683 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-05-30 15:26:15,683 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-30 15:26:15,683 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-30 15:26:15,684 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-30 15:26:15,684 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-30 15:26:15,684 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2024-05-30 15:26:15,684 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-30 15:26:15,684 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-30 15:26:15,685 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2024-05-30 15:26:15,685 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2024-05-30 15:26:15,685 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-30 15:26:15,685 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-05-30 15:26:15,685 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-30 15:26:15,685 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2024-05-30 15:26:15,947 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-30 15:26:15,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-30 15:26:15,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-30 15:26:15,966 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-30 15:26:15,967 INFO L274 PluginConnector]: CDTParser initialized [2024-05-30 15:26:15,968 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_21-traces-cluster-based_true.i [2024-05-30 15:26:17,062 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-30 15:26:17,304 INFO L384 CDTParser]: Found 1 translation units. [2024-05-30 15:26:17,305 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_21-traces-cluster-based_true.i [2024-05-30 15:26:17,319 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/69af09ead/4686ee4e024941c585ff9470983f68de/FLAG5f6c5029a [2024-05-30 15:26:17,332 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/69af09ead/4686ee4e024941c585ff9470983f68de [2024-05-30 15:26:17,334 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-30 15:26:17,335 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-30 15:26:17,336 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-30 15:26:17,336 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-30 15:26:17,340 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-30 15:26:17,340 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.05 03:26:17" (1/1) ... [2024-05-30 15:26:17,341 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f5516d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:26:17, skipping insertion in model container [2024-05-30 15:26:17,341 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.05 03:26:17" (1/1) ... [2024-05-30 15:26:17,368 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-30 15:26:17,477 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_21-traces-cluster-based_true.i[1092,1105] [2024-05-30 15:26:17,560 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-30 15:26:17,572 INFO L202 MainTranslator]: Completed pre-run [2024-05-30 15:26:17,585 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_21-traces-cluster-based_true.i[1092,1105] [2024-05-30 15:26:17,629 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-30 15:26:17,708 INFO L206 MainTranslator]: Completed translation [2024-05-30 15:26:17,708 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:26:17 WrapperNode [2024-05-30 15:26:17,708 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-30 15:26:17,709 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-30 15:26:17,709 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-30 15:26:17,709 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-30 15:26:17,721 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:26:17" (1/1) ... [2024-05-30 15:26:17,739 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:26:17" (1/1) ... [2024-05-30 15:26:17,773 INFO L138 Inliner]: procedures = 166, calls = 53, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 149 [2024-05-30 15:26:17,774 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-30 15:26:17,774 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-30 15:26:17,774 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-30 15:26:17,774 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-30 15:26:17,781 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:26:17" (1/1) ... [2024-05-30 15:26:17,781 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:26:17" (1/1) ... [2024-05-30 15:26:17,794 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:26:17" (1/1) ... [2024-05-30 15:26:17,795 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:26:17" (1/1) ... [2024-05-30 15:26:17,798 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:26:17" (1/1) ... [2024-05-30 15:26:17,799 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:26:17" (1/1) ... [2024-05-30 15:26:17,801 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:26:17" (1/1) ... [2024-05-30 15:26:17,801 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:26:17" (1/1) ... [2024-05-30 15:26:17,803 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-30 15:26:17,819 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-30 15:26:17,819 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-30 15:26:17,819 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-30 15:26:17,820 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:26:17" (1/1) ... [2024-05-30 15:26:17,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-30 15:26:17,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 15:26:17,863 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 15:26:17,888 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 15:26:17,929 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-05-30 15:26:17,929 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-05-30 15:26:17,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-05-30 15:26:17,929 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-05-30 15:26:17,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-30 15:26:17,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-30 15:26:17,930 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2024-05-30 15:26:17,930 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2024-05-30 15:26:17,930 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-05-30 15:26:17,930 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-05-30 15:26:17,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-30 15:26:17,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-05-30 15:26:17,932 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-05-30 15:26:17,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-30 15:26:17,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-30 15:26:17,933 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 15:26:18,056 INFO L241 CfgBuilder]: Building ICFG [2024-05-30 15:26:18,058 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-30 15:26:18,237 INFO L282 CfgBuilder]: Performing block encoding [2024-05-30 15:26:18,279 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-30 15:26:18,279 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2024-05-30 15:26:18,279 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.05 03:26:18 BoogieIcfgContainer [2024-05-30 15:26:18,279 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-30 15:26:18,281 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-30 15:26:18,281 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-30 15:26:18,284 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-30 15:26:18,284 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.05 03:26:17" (1/3) ... [2024-05-30 15:26:18,284 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@991f043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.05 03:26:18, skipping insertion in model container [2024-05-30 15:26:18,284 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:26:17" (2/3) ... [2024-05-30 15:26:18,284 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@991f043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.05 03:26:18, skipping insertion in model container [2024-05-30 15:26:18,284 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.05 03:26:18" (3/3) ... [2024-05-30 15:26:18,285 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_21-traces-cluster-based_true.i [2024-05-30 15:26:18,295 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-05-30 15:26:18,303 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-30 15:26:18,303 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-05-30 15:26:18,303 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-30 15:26:18,378 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-05-30 15:26:18,420 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 15:26:18,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-30 15:26:18,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 15:26:18,423 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 15:26:18,426 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 15:26:18,486 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-30 15:26:18,496 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2024-05-30 15:26:18,501 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;@22f91a9d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 15:26:18,502 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-05-30 15:26:18,506 WARN L438 OrderReductionFacade]: DynamicStratifiedReduction did not find any initial state. Returning directly. [2024-05-30 15:26:18,508 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-05-30 15:26:18,514 INFO L445 BasicCegarLoop]: Path program histogram: [] [2024-05-30 15:26:18,515 INFO L308 ceAbstractionStarter]: Result for error location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION was SAFE (1/9) [2024-05-30 15:26:18,532 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 15:26:18,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-30 15:26:18,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 15:26:18,535 INFO L229 MonitoredProcess]: Starting monitored process 3 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 15:26:18,558 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-30 15:26:18,558 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2024-05-30 15:26:18,559 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;@22f91a9d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 15:26:18,559 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-05-30 15:26:18,559 WARN L438 OrderReductionFacade]: DynamicStratifiedReduction did not find any initial state. Returning directly. [2024-05-30 15:26:18,560 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-05-30 15:26:18,561 INFO L445 BasicCegarLoop]: Path program histogram: [] [2024-05-30 15:26:18,561 INFO L308 ceAbstractionStarter]: Result for error location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION was SAFE (2/9) [2024-05-30 15:26:18,565 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 15:26:18,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-30 15:26:18,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 15:26:18,568 INFO L229 MonitoredProcess]: Starting monitored process 4 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 15:26:18,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2024-05-30 15:26:18,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2024-05-30 15:26:18,582 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-30 15:26:18,582 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2024-05-30 15:26:18,583 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;@22f91a9d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 15:26:18,583 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-05-30 15:26:18,586 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 15:26:18,614 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 124 states. [2024-05-30 15:26:18,614 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-30 15:26:18,617 INFO L78 Accepts]: Start accepts. Automaton has currently 126 states, but on-demand construction may add more states Word has length 64 [2024-05-30 15:26:18,620 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 15:26:18,620 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 15:26:18,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 15:26:18,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1659537627, now seen corresponding path program 1 times [2024-05-30 15:26:18,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 15:26:18,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124528235] [2024-05-30 15:26:18,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 15:26:18,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 15:26:18,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 15:26:19,248 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 15:26:19,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 15:26:19,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124528235] [2024-05-30 15:26:19,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124528235] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 15:26:19,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 15:26:19,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-05-30 15:26:19,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595855100] [2024-05-30 15:26:19,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 15:26:19,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-05-30 15:26:19,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 15:26:19,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-05-30 15:26:19,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-05-30 15:26:19,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:26:19,275 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 15:26:19,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 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 15:26:19,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:26:19,276 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 15:35:36,337 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 126754 states. [2024-05-30 15:35:36,337 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-30 15:35:36,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-05-30 15:35:36,338 INFO L78 Accepts]: Start accepts. Automaton has currently 153376 states, but on-demand construction may add more states Word has length 120 [2024-05-30 15:35:36,346 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 15:35:36,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-30 15:35:36,347 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 15:35:36,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 15:35:36,348 INFO L85 PathProgramCache]: Analyzing trace with hash -424957094, now seen corresponding path program 1 times [2024-05-30 15:35:36,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 15:35:36,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052093641] [2024-05-30 15:35:36,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 15:35:36,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 15:35:36,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 15:35:36,509 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 15:35:36,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 15:35:36,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052093641] [2024-05-30 15:35:36,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052093641] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 15:35:36,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 15:35:36,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-30 15:35:36,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194517850] [2024-05-30 15:35:36,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 15:35:36,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-30 15:35:36,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 15:35:36,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-30 15:35:36,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-30 15:35:36,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:35:36,514 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 15:35:36,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-30 15:35:36,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-05-30 15:35:36,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:35:36,515 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 15:35:55,819 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 33735 states. [2024-05-30 15:35:55,820 INFO L212 cStratifiedReduction]: Copied states 250 times. [2024-05-30 15:35:55,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-05-30 15:35:55,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 15:35:55,828 INFO L78 Accepts]: Start accepts. Automaton has currently 41815 states, but on-demand construction may add more states Word has length 120 [2024-05-30 15:35:55,831 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 15:35:55,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-05-30 15:35:55,832 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 15:35:55,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 15:35:55,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1178548180, now seen corresponding path program 2 times [2024-05-30 15:35:55,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 15:35:55,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930490222] [2024-05-30 15:35:55,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 15:35:55,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 15:35:55,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 15:35:56,269 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 15:35:56,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 15:35:56,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930490222] [2024-05-30 15:35:56,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930490222] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 15:35:56,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 15:35:56,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-05-30 15:35:56,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268231277] [2024-05-30 15:35:56,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 15:35:56,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-05-30 15:35:56,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 15:35:56,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-05-30 15:35:56,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-05-30 15:35:56,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:35:56,281 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 15:35:56,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.0) internal successors, (120), 8 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-30 15:35:56,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-05-30 15:35:56,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 15:35:56,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:35:56,281 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 15:36:12,330 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 30917 states. [2024-05-30 15:36:12,330 INFO L212 cStratifiedReduction]: Copied states 250 times. [2024-05-30 15:36:12,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-05-30 15:36:12,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 15:36:12,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-30 15:36:12,331 INFO L78 Accepts]: Start accepts. Automaton has currently 38547 states, but on-demand construction may add more states Word has length 123 [2024-05-30 15:36:12,337 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 15:36:12,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-05-30 15:36:12,337 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 15:36:12,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 15:36:12,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1552093208, now seen corresponding path program 1 times [2024-05-30 15:36:12,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 15:36:12,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607752896] [2024-05-30 15:36:12,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 15:36:12,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 15:36:12,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 15:36:12,565 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 15:36:12,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 15:36:12,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607752896] [2024-05-30 15:36:12,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607752896] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 15:36:12,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 15:36:12,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-05-30 15:36:12,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259658477] [2024-05-30 15:36:12,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 15:36:12,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-05-30 15:36:12,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 15:36:12,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-05-30 15:36:12,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-05-30 15:36:12,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:36:12,571 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 15:36:12,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.375) internal successors, (123), 8 states have internal predecessors, (123), 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 15:36:12,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-05-30 15:36:12,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 15:36:12,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-05-30 15:36:12,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:36:12,572 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 15:36:27,597 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 30946 states. [2024-05-30 15:36:27,597 INFO L212 cStratifiedReduction]: Copied states 604 times. [2024-05-30 15:36:27,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-05-30 15:36:27,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 15:36:27,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-30 15:36:27,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-05-30 15:36:27,598 INFO L78 Accepts]: Start accepts. Automaton has currently 38192 states, but on-demand construction may add more states Word has length 126 [2024-05-30 15:36:27,599 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 15:36:27,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-05-30 15:36:27,612 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 15:36:27,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 15:36:27,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1238275489, now seen corresponding path program 1 times [2024-05-30 15:36:27,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 15:36:27,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369614262] [2024-05-30 15:36:27,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 15:36:27,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 15:36:27,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 15:36:27,870 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 15:36:27,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 15:36:27,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369614262] [2024-05-30 15:36:27,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369614262] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 15:36:27,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 15:36:27,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-30 15:36:27,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835253852] [2024-05-30 15:36:27,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 15:36:27,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-30 15:36:27,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 15:36:27,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-30 15:36:27,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-30 15:36:27,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:36:27,874 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 15:36:27,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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 15:36:27,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-05-30 15:36:27,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 15:36:27,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-05-30 15:36:27,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-05-30 15:36:27,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:36:27,875 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 15:36:43,225 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 31350 states. [2024-05-30 15:36:43,225 INFO L212 cStratifiedReduction]: Copied states 226 times. [2024-05-30 15:36:43,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-05-30 15:36:43,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 15:36:43,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-30 15:36:43,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-05-30 15:36:43,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-30 15:36:43,226 INFO L78 Accepts]: Start accepts. Automaton has currently 39015 states, but on-demand construction may add more states Word has length 127 [2024-05-30 15:36:43,226 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 15:36:43,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-05-30 15:36:43,227 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 15:36:43,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 15:36:43,227 INFO L85 PathProgramCache]: Analyzing trace with hash 662160652, now seen corresponding path program 1 times [2024-05-30 15:36:43,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 15:36:43,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401978925] [2024-05-30 15:36:43,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 15:36:43,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 15:36:43,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 15:36:43,429 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 15:36:43,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 15:36:43,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401978925] [2024-05-30 15:36:43,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401978925] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 15:36:43,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 15:36:43,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-30 15:36:43,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530236423] [2024-05-30 15:36:43,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 15:36:43,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-30 15:36:43,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 15:36:43,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-30 15:36:43,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-30 15:36:43,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:36:43,431 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 15:36:43,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 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 15:36:43,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-05-30 15:36:43,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 15:36:43,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-05-30 15:36:43,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-05-30 15:36:43,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-30 15:36:43,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:36:43,433 INFO L199 cStratifiedReduction]: Start building reduction automaton