/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/pthread-wmm/mix038_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.dynamic-abstractions-a4a1cd3-m [2024-05-30 12:35:31,339 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-30 12:35:31,375 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2024-05-30 12:35:31,378 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-30 12:35:31,379 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-30 12:35:31,379 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-05-30 12:35:31,413 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-30 12:35:31,413 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-30 12:35:31,413 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-30 12:35:31,417 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-30 12:35:31,417 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-30 12:35:31,417 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-30 12:35:31,417 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-30 12:35:31,419 INFO L153 SettingsManager]: * Use SBE=true [2024-05-30 12:35:31,419 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-30 12:35:31,419 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-30 12:35:31,419 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-30 12:35:31,419 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-30 12:35:31,419 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-30 12:35:31,419 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-30 12:35:31,420 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-30 12:35:31,420 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-30 12:35:31,420 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-30 12:35:31,420 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-30 12:35:31,420 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-30 12:35:31,420 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-30 12:35:31,421 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-30 12:35:31,421 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-30 12:35:31,421 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-05-30 12:35:31,421 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-30 12:35:31,422 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-30 12:35:31,422 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-30 12:35:31,422 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-30 12:35:31,422 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2024-05-30 12:35:31,423 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-30 12:35:31,423 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-30 12:35:31,423 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2024-05-30 12:35:31,423 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2024-05-30 12:35:31,423 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-30 12:35:31,424 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-05-30 12:35:31,424 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-30 12:35:31,424 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2024-05-30 12:35:31,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-30 12:35:31,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-30 12:35:31,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-30 12:35:31,663 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-30 12:35:31,663 INFO L274 PluginConnector]: CDTParser initialized [2024-05-30 12:35:31,664 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-wmm/mix038_tso.oepc.i [2024-05-30 12:35:32,706 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-30 12:35:32,922 INFO L384 CDTParser]: Found 1 translation units. [2024-05-30 12:35:32,923 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix038_tso.oepc.i [2024-05-30 12:35:32,935 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/6da98a453/6424947153404b2e9fe83113ed2102dd/FLAG1ce468e40 [2024-05-30 12:35:32,946 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/6da98a453/6424947153404b2e9fe83113ed2102dd [2024-05-30 12:35:32,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-30 12:35:32,948 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-30 12:35:32,952 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-30 12:35:32,952 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-30 12:35:32,956 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-30 12:35:32,956 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.05 12:35:32" (1/1) ... [2024-05-30 12:35:32,957 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@518822e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 12:35:32, skipping insertion in model container [2024-05-30 12:35:32,957 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.05 12:35:32" (1/1) ... [2024-05-30 12:35:32,996 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-30 12:35:33,105 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix038_tso.oepc.i[949,962] [2024-05-30 12:35:33,273 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-30 12:35:33,285 INFO L202 MainTranslator]: Completed pre-run [2024-05-30 12:35:33,299 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix038_tso.oepc.i[949,962] [2024-05-30 12:35:33,342 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-30 12:35:33,372 INFO L206 MainTranslator]: Completed translation [2024-05-30 12:35:33,373 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 12:35:33 WrapperNode [2024-05-30 12:35:33,373 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-30 12:35:33,374 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-30 12:35:33,374 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-30 12:35:33,374 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-30 12:35:33,379 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 12:35:33" (1/1) ... [2024-05-30 12:35:33,409 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 12:35:33" (1/1) ... [2024-05-30 12:35:33,429 INFO L138 Inliner]: procedures = 176, calls = 58, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 146 [2024-05-30 12:35:33,429 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-30 12:35:33,430 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-30 12:35:33,430 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-30 12:35:33,430 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-30 12:35:33,440 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 12:35:33" (1/1) ... [2024-05-30 12:35:33,441 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 12:35:33" (1/1) ... [2024-05-30 12:35:33,457 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 12:35:33" (1/1) ... [2024-05-30 12:35:33,457 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 12:35:33" (1/1) ... [2024-05-30 12:35:33,463 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 12:35:33" (1/1) ... [2024-05-30 12:35:33,465 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 12:35:33" (1/1) ... [2024-05-30 12:35:33,466 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 12:35:33" (1/1) ... [2024-05-30 12:35:33,467 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 12:35:33" (1/1) ... [2024-05-30 12:35:33,469 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-30 12:35:33,470 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-30 12:35:33,470 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-30 12:35:33,470 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-30 12:35:33,471 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 12:35:33" (1/1) ... [2024-05-30 12:35:33,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-30 12:35:33,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 12:35:33,505 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 12:35:33,520 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 12:35:33,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-05-30 12:35:33,549 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-05-30 12:35:33,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-30 12:35:33,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-30 12:35:33,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-30 12:35:33,549 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-05-30 12:35:33,549 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-05-30 12:35:33,549 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-05-30 12:35:33,550 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-05-30 12:35:33,550 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-05-30 12:35:33,551 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-05-30 12:35:33,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-05-30 12:35:33,551 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-05-30 12:35:33,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-30 12:35:33,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-30 12:35:33,553 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 12:35:33,677 INFO L241 CfgBuilder]: Building ICFG [2024-05-30 12:35:33,679 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-30 12:35:33,912 INFO L282 CfgBuilder]: Performing block encoding [2024-05-30 12:35:33,986 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-30 12:35:33,986 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2024-05-30 12:35:33,987 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.05 12:35:33 BoogieIcfgContainer [2024-05-30 12:35:33,987 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-30 12:35:33,989 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-30 12:35:33,989 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-30 12:35:33,991 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-30 12:35:33,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.05 12:35:32" (1/3) ... [2024-05-30 12:35:33,996 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bbd373f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.05 12:35:33, skipping insertion in model container [2024-05-30 12:35:33,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 12:35:33" (2/3) ... [2024-05-30 12:35:33,997 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bbd373f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.05 12:35:33, skipping insertion in model container [2024-05-30 12:35:33,997 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.05 12:35:33" (3/3) ... [2024-05-30 12:35:33,998 INFO L112 eAbstractionObserver]: Analyzing ICFG mix038_tso.oepc.i [2024-05-30 12:35:34,005 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-05-30 12:35:34,012 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-30 12:35:34,013 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-05-30 12:35:34,013 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-30 12:35:34,076 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-05-30 12:35:34,128 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 12:35:34,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-30 12:35:34,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 12:35:34,130 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 12:35:34,132 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 12:35:34,174 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-30 12:35:34,180 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P1Err0ASSERT_VIOLATIONERROR_FUNCTION ======== [2024-05-30 12:35:34,186 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;@6cca5f05, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 12:35:34,186 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-05-30 12:35:34,192 WARN L438 OrderReductionFacade]: DynamicStratifiedReduction did not find any initial state. Returning directly. [2024-05-30 12:35:34,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-05-30 12:35:34,201 INFO L445 BasicCegarLoop]: Path program histogram: [] [2024-05-30 12:35:34,203 INFO L308 ceAbstractionStarter]: Result for error location P1Err0ASSERT_VIOLATIONERROR_FUNCTION was SAFE (1/6) [2024-05-30 12:35:34,216 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 12:35:34,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-30 12:35:34,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 12:35:34,222 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 12:35:34,226 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-30 12:35:34,226 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2024-05-30 12:35:34,227 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;@6cca5f05, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 12:35:34,227 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-05-30 12:35:34,230 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 12:35:34,248 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 12:35:34,267 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 147 states. [2024-05-30 12:35:34,268 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-30 12:35:34,270 INFO L78 Accepts]: Start accepts. Automaton has currently 149 states, but on-demand construction may add more states Word has length 72 [2024-05-30 12:35:34,273 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 12:35:34,274 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 12:35:34,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 12:35:34,278 INFO L85 PathProgramCache]: Analyzing trace with hash -470210621, now seen corresponding path program 1 times [2024-05-30 12:35:34,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 12:35:34,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032899234] [2024-05-30 12:35:34,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 12:35:34,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 12:35:34,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 12:35:34,586 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 12:35:34,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 12:35:34,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032899234] [2024-05-30 12:35:34,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032899234] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 12:35:34,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 12:35:34,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-30 12:35:34,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110125254] [2024-05-30 12:35:34,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 12:35:34,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-30 12:35:34,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 12:35:34,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-30 12:35:34,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-30 12:35:34,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:35:34,621 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 12:35:34,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 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 12:35:34,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:35:34,622 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 12:35:42,146 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 864 states. [2024-05-30 12:35:42,146 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-30 12:35:42,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:35:42,147 INFO L78 Accepts]: Start accepts. Automaton has currently 1584 states, but on-demand construction may add more states Word has length 71 [2024-05-30 12:35:42,148 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 12:35:42,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-30 12:35:42,148 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 12:35:42,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 12:35:42,149 INFO L85 PathProgramCache]: Analyzing trace with hash -78655182, now seen corresponding path program 1 times [2024-05-30 12:35:42,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 12:35:42,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225048432] [2024-05-30 12:35:42,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 12:35:42,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 12:35:42,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 12:35:42,727 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 12:35:42,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 12:35:42,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225048432] [2024-05-30 12:35:42,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225048432] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 12:35:42,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 12:35:42,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-05-30 12:35:42,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133972312] [2024-05-30 12:35:42,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 12:35:42,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-05-30 12:35:42,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 12:35:42,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-05-30 12:35:42,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-05-30 12:35:42,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:35:42,730 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 12:35:42,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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 12:35:42,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:35:42,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:35:42,731 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 12:38:26,689 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 5424 states. [2024-05-30 12:38:26,690 INFO L212 cStratifiedReduction]: Copied states 1660 times. [2024-05-30 12:38:26,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:38:26,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-30 12:38:26,690 INFO L78 Accepts]: Start accepts. Automaton has currently 5200 states, but on-demand construction may add more states Word has length 84 [2024-05-30 12:38:26,691 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 12:38:26,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-05-30 12:38:26,691 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 12:38:26,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 12:38:26,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1826827350, now seen corresponding path program 1 times [2024-05-30 12:38:26,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 12:38:26,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465382820] [2024-05-30 12:38:26,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 12:38:26,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 12:38:26,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 12:38:27,199 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 12:38:27,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 12:38:27,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465382820] [2024-05-30 12:38:27,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465382820] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 12:38:27,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 12:38:27,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-05-30 12:38:27,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580670165] [2024-05-30 12:38:27,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 12:38:27,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-05-30 12:38:27,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 12:38:27,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-05-30 12:38:27,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-05-30 12:38:27,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:38:27,203 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 12:38:27,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 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 12:38:27,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:38:27,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-05-30 12:38:27,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:38:27,204 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 12:40:38,652 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 5164 states. [2024-05-30 12:40:38,652 INFO L212 cStratifiedReduction]: Copied states 1698 times. [2024-05-30 12:40:38,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:40:38,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-30 12:40:38,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-30 12:40:38,656 INFO L78 Accepts]: Start accepts. Automaton has currently 5050 states, but on-demand construction may add more states Word has length 89 [2024-05-30 12:40:38,657 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 12:40:38,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-05-30 12:40:38,657 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 12:40:38,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 12:40:38,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1470896293, now seen corresponding path program 1 times [2024-05-30 12:40:38,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 12:40:38,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070489239] [2024-05-30 12:40:38,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 12:40:38,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 12:40:38,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 12:40:38,873 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 12:40:38,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 12:40:38,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070489239] [2024-05-30 12:40:38,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070489239] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 12:40:38,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 12:40:38,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-30 12:40:38,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559132066] [2024-05-30 12:40:38,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 12:40:38,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-30 12:40:38,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 12:40:38,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-30 12:40:38,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-05-30 12:40:38,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:40:38,876 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 12:40:38,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 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 12:40:38,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:40:38,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-05-30 12:40:38,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-30 12:40:38,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:40:38,876 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 12:43:10,843 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 5578 states. [2024-05-30 12:43:10,844 INFO L212 cStratifiedReduction]: Copied states 1969 times. [2024-05-30 12:43:10,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:43:10,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-30 12:43:10,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-30 12:43:10,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-05-30 12:43:10,845 INFO L78 Accepts]: Start accepts. Automaton has currently 5396 states, but on-demand construction may add more states Word has length 89 [2024-05-30 12:43:10,845 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 12:43:10,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-05-30 12:43:10,846 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 12:43:10,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 12:43:10,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1376595493, now seen corresponding path program 2 times [2024-05-30 12:43:10,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 12:43:10,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794549607] [2024-05-30 12:43:10,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 12:43:10,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 12:43:10,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 12:43:11,050 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 12:43:11,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 12:43:11,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794549607] [2024-05-30 12:43:11,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794549607] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 12:43:11,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 12:43:11,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-05-30 12:43:11,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544843696] [2024-05-30 12:43:11,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 12:43:11,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-05-30 12:43:11,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 12:43:11,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-05-30 12:43:11,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-05-30 12:43:11,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:43:11,053 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 12:43:11,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 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 12:43:11,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:43:11,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-05-30 12:43:11,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-30 12:43:11,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-05-30 12:43:11,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:43:11,058 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 12:45:48,128 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 5593 states. [2024-05-30 12:45:48,128 INFO L212 cStratifiedReduction]: Copied states 2012 times. [2024-05-30 12:45:48,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:45:48,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-30 12:45:48,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-30 12:45:48,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-05-30 12:45:48,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-05-30 12:45:48,129 INFO L78 Accepts]: Start accepts. Automaton has currently 5340 states, but on-demand construction may add more states Word has length 92 [2024-05-30 12:45:48,130 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 12:45:48,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-05-30 12:45:48,130 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 12:45:48,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 12:45:48,130 INFO L85 PathProgramCache]: Analyzing trace with hash -528519419, now seen corresponding path program 1 times [2024-05-30 12:45:48,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 12:45:48,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816528730] [2024-05-30 12:45:48,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 12:45:48,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 12:45:48,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 12:45:48,479 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 12:45:48,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 12:45:48,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816528730] [2024-05-30 12:45:48,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816528730] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 12:45:48,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 12:45:48,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-05-30 12:45:48,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199689672] [2024-05-30 12:45:48,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 12:45:48,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-05-30 12:45:48,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 12:45:48,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-05-30 12:45:48,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-05-30 12:45:48,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:45:48,483 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 12:45:48,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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 12:45:48,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:45:48,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-05-30 12:45:48,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-30 12:45:48,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-05-30 12:45:48,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-05-30 12:45:48,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:45:48,483 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 12:48:02,951 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 9726 states. [2024-05-30 12:48:02,952 INFO L212 cStratifiedReduction]: Copied states 4132 times. [2024-05-30 12:48:02,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:48:02,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-30 12:48:02,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-30 12:48:02,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-05-30 12:48:02,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-05-30 12:48:02,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-30 12:48:02,952 INFO L78 Accepts]: Start accepts. Automaton has currently 7613 states, but on-demand construction may add more states Word has length 92 [2024-05-30 12:48:02,953 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 12:48:02,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-05-30 12:48:02,953 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 12:48:02,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 12:48:02,954 INFO L85 PathProgramCache]: Analyzing trace with hash 659493445, now seen corresponding path program 2 times [2024-05-30 12:48:02,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 12:48:02,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516063364] [2024-05-30 12:48:02,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 12:48:02,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 12:48:02,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 12:48:03,997 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 12:48:03,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 12:48:03,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516063364] [2024-05-30 12:48:03,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516063364] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 12:48:03,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 12:48:03,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-05-30 12:48:03,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226791050] [2024-05-30 12:48:03,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 12:48:03,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-05-30 12:48:03,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 12:48:03,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-05-30 12:48:04,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2024-05-30 12:48:04,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:48:04,000 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 12:48:04,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.411764705882353) internal successors, (92), 17 states have internal predecessors, (92), 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 12:48:04,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:48:04,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-05-30 12:48:04,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-30 12:48:04,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-05-30 12:48:04,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-05-30 12:48:04,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-30 12:48:04,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:48:04,001 INFO L199 cStratifiedReduction]: Start building reduction automaton