/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/mix016_power.opt_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.dynamic-abstractions-a4a1cd3-m [2024-05-30 11:50:12,598 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-30 11:50:12,661 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2024-05-30 11:50:12,664 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-30 11:50:12,665 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-30 11:50:12,665 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-05-30 11:50:12,688 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-30 11:50:12,689 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-30 11:50:12,689 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-30 11:50:12,693 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-30 11:50:12,694 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-30 11:50:12,694 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-30 11:50:12,694 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-30 11:50:12,695 INFO L153 SettingsManager]: * Use SBE=true [2024-05-30 11:50:12,696 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-30 11:50:12,696 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-30 11:50:12,696 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-30 11:50:12,696 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-30 11:50:12,696 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-30 11:50:12,697 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-30 11:50:12,697 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-30 11:50:12,697 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-30 11:50:12,697 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-30 11:50:12,698 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-30 11:50:12,698 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-30 11:50:12,698 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-30 11:50:12,698 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-30 11:50:12,698 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-30 11:50:12,698 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-05-30 11:50:12,699 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-30 11:50:12,699 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-30 11:50:12,700 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-30 11:50:12,700 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-30 11:50:12,700 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2024-05-30 11:50:12,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-30 11:50:12,700 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-30 11:50:12,717 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2024-05-30 11:50:12,717 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2024-05-30 11:50:12,717 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-30 11:50:12,718 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-05-30 11:50:12,718 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-30 11:50:12,718 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2024-05-30 11:50:12,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-30 11:50:12,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-30 11:50:12,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-30 11:50:12,962 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-30 11:50:12,964 INFO L274 PluginConnector]: CDTParser initialized [2024-05-30 11:50:12,965 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-wmm/mix016_power.opt_rmo.opt.i [2024-05-30 11:50:14,072 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-30 11:50:14,283 INFO L384 CDTParser]: Found 1 translation units. [2024-05-30 11:50:14,284 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix016_power.opt_rmo.opt.i [2024-05-30 11:50:14,300 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/f43701b10/dc7e06ffc3d042719e81d8b9c8935868/FLAG8156ff8ba [2024-05-30 11:50:14,311 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/f43701b10/dc7e06ffc3d042719e81d8b9c8935868 [2024-05-30 11:50:14,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-30 11:50:14,314 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-30 11:50:14,315 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-30 11:50:14,315 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-30 11:50:14,324 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-30 11:50:14,325 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.05 11:50:14" (1/1) ... [2024-05-30 11:50:14,326 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7285ccd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 11:50:14, skipping insertion in model container [2024-05-30 11:50:14,326 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.05 11:50:14" (1/1) ... [2024-05-30 11:50:14,369 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-30 11:50:14,507 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/mix016_power.opt_rmo.opt.i[1001,1014] [2024-05-30 11:50:14,663 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-30 11:50:14,673 INFO L202 MainTranslator]: Completed pre-run [2024-05-30 11:50:14,684 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/mix016_power.opt_rmo.opt.i[1001,1014] [2024-05-30 11:50:14,727 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-30 11:50:14,753 INFO L206 MainTranslator]: Completed translation [2024-05-30 11:50:14,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 11:50:14 WrapperNode [2024-05-30 11:50:14,753 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-30 11:50:14,754 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-30 11:50:14,754 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-30 11:50:14,754 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-30 11:50:14,759 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 11:50:14" (1/1) ... [2024-05-30 11:50:14,772 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 11:50:14" (1/1) ... [2024-05-30 11:50:14,795 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 129 [2024-05-30 11:50:14,796 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-30 11:50:14,796 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-30 11:50:14,796 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-30 11:50:14,796 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-30 11:50:14,803 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 11:50:14" (1/1) ... [2024-05-30 11:50:14,803 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 11:50:14" (1/1) ... [2024-05-30 11:50:14,806 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 11:50:14" (1/1) ... [2024-05-30 11:50:14,806 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 11:50:14" (1/1) ... [2024-05-30 11:50:14,812 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 11:50:14" (1/1) ... [2024-05-30 11:50:14,813 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 11:50:14" (1/1) ... [2024-05-30 11:50:14,814 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 11:50:14" (1/1) ... [2024-05-30 11:50:14,815 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 11:50:14" (1/1) ... [2024-05-30 11:50:14,818 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-30 11:50:14,818 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-30 11:50:14,818 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-30 11:50:14,818 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-30 11:50:14,819 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 11:50:14" (1/1) ... [2024-05-30 11:50:14,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-30 11:50:14,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 11:50:14,873 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 11:50:14,891 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 11:50:14,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-05-30 11:50:14,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-05-30 11:50:14,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-30 11:50:14,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-30 11:50:14,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-30 11:50:14,914 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-05-30 11:50:14,914 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-05-30 11:50:14,914 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-05-30 11:50:14,914 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-05-30 11:50:14,914 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-05-30 11:50:14,914 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-05-30 11:50:14,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-05-30 11:50:14,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-05-30 11:50:14,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-30 11:50:14,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-30 11:50:14,916 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 11:50:15,018 INFO L241 CfgBuilder]: Building ICFG [2024-05-30 11:50:15,020 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-30 11:50:15,255 INFO L282 CfgBuilder]: Performing block encoding [2024-05-30 11:50:15,346 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-30 11:50:15,346 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2024-05-30 11:50:15,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.05 11:50:15 BoogieIcfgContainer [2024-05-30 11:50:15,347 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-30 11:50:15,348 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-30 11:50:15,348 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-30 11:50:15,351 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-30 11:50:15,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.05 11:50:14" (1/3) ... [2024-05-30 11:50:15,351 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@178e2c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.05 11:50:15, skipping insertion in model container [2024-05-30 11:50:15,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 11:50:14" (2/3) ... [2024-05-30 11:50:15,352 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@178e2c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.05 11:50:15, skipping insertion in model container [2024-05-30 11:50:15,355 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.05 11:50:15" (3/3) ... [2024-05-30 11:50:15,356 INFO L112 eAbstractionObserver]: Analyzing ICFG mix016_power.opt_rmo.opt.i [2024-05-30 11:50:15,362 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-05-30 11:50:15,369 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-30 11:50:15,369 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-05-30 11:50:15,369 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-30 11:50:15,428 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-05-30 11:50:15,472 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 11:50:15,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-30 11:50:15,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 11:50:15,475 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 11:50:15,508 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 11:50:15,523 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-30 11:50:15,532 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P1Err0ASSERT_VIOLATIONERROR_FUNCTION ======== [2024-05-30 11:50:15,537 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;@443a396b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 11:50:15,537 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-05-30 11:50:15,540 WARN L438 OrderReductionFacade]: DynamicStratifiedReduction did not find any initial state. Returning directly. [2024-05-30 11:50:15,543 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-05-30 11:50:15,548 INFO L445 BasicCegarLoop]: Path program histogram: [] [2024-05-30 11:50:15,550 INFO L308 ceAbstractionStarter]: Result for error location P1Err0ASSERT_VIOLATIONERROR_FUNCTION was SAFE (1/6) [2024-05-30 11:50:15,561 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 11:50:15,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-30 11:50:15,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 11:50:15,594 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 11:50:15,601 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 11:50:15,606 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-30 11:50:15,606 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2024-05-30 11:50:15,607 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;@443a396b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 11:50:15,607 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-05-30 11:50:15,610 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 11:50:15,632 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 147 states. [2024-05-30 11:50:15,632 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-30 11:50:15,635 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 11:50:15,637 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 11:50:15,637 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 11:50:15,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 11:50:15,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1323330501, now seen corresponding path program 1 times [2024-05-30 11:50:15,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 11:50:15,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703840104] [2024-05-30 11:50:15,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 11:50:15,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 11:50:15,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 11:50:15,995 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 11:50:15,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 11:50:15,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703840104] [2024-05-30 11:50:15,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703840104] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 11:50:15,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 11:50:15,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-30 11:50:15,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789112730] [2024-05-30 11:50:15,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 11:50:16,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-30 11:50:16,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 11:50:16,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-30 11:50:16,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-30 11:50:16,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 11:50:16,022 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 11:50:16,022 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 11:50:16,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 11:50:16,023 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 11:50:28,293 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 792 states. [2024-05-30 11:50:28,293 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-30 11:50:28,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 11:50:28,294 INFO L78 Accepts]: Start accepts. Automaton has currently 1440 states, but on-demand construction may add more states Word has length 71 [2024-05-30 11:50:28,294 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 11:50:28,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-30 11:50:28,295 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 11:50:28,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 11:50:28,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1148556421, now seen corresponding path program 1 times [2024-05-30 11:50:28,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 11:50:28,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574363730] [2024-05-30 11:50:28,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 11:50:28,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 11:50:28,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 11:50:28,660 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 11:50:28,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 11:50:28,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574363730] [2024-05-30 11:50:28,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574363730] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 11:50:28,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 11:50:28,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-30 11:50:28,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384822381] [2024-05-30 11:50:28,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 11:50:28,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-30 11:50:28,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 11:50:28,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-30 11:50:28,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-05-30 11:50:28,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 11:50:28,662 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 11:50:28,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 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 11:50:28,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 11:50:28,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 11:50:28,664 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 11:51:22,159 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 3809 states. [2024-05-30 11:51:22,160 INFO L212 cStratifiedReduction]: Copied states 408 times. [2024-05-30 11:51:22,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 11:51:22,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-30 11:51:22,161 INFO L78 Accepts]: Start accepts. Automaton has currently 4695 states, but on-demand construction may add more states Word has length 83 [2024-05-30 11:51:22,162 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 11:51:22,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-05-30 11:51:22,162 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 11:51:22,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 11:51:22,163 INFO L85 PathProgramCache]: Analyzing trace with hash 2028244167, now seen corresponding path program 1 times [2024-05-30 11:51:22,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 11:51:22,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914019437] [2024-05-30 11:51:22,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 11:51:22,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 11:51:22,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 11:51:22,582 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 11:51:22,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 11:51:22,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914019437] [2024-05-30 11:51:22,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914019437] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 11:51:22,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 11:51:22,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-30 11:51:22,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978677275] [2024-05-30 11:51:22,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 11:51:22,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-30 11:51:22,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 11:51:22,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-30 11:51:22,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-30 11:51:22,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 11:51:22,585 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 11:51:22,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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 11:51:22,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 11:51:22,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-05-30 11:51:22,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 11:51:22,586 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 11:52:31,219 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 3865 states. [2024-05-30 11:52:31,219 INFO L212 cStratifiedReduction]: Copied states 735 times. [2024-05-30 11:52:31,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 11:52:31,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-30 11:52:31,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 11:52:31,220 INFO L78 Accepts]: Start accepts. Automaton has currently 4561 states, but on-demand construction may add more states Word has length 88 [2024-05-30 11:52:31,221 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 11:52:31,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-05-30 11:52:31,221 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 11:52:31,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 11:52:31,221 INFO L85 PathProgramCache]: Analyzing trace with hash 62520248, now seen corresponding path program 1 times [2024-05-30 11:52:31,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 11:52:31,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977712207] [2024-05-30 11:52:31,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 11:52:31,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 11:52:31,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 11:52:31,427 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 11:52:31,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 11:52:31,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977712207] [2024-05-30 11:52:31,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977712207] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 11:52:31,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 11:52:31,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-30 11:52:31,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236351536] [2024-05-30 11:52:31,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 11:52:31,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-30 11:52:31,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 11:52:31,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-30 11:52:31,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-05-30 11:52:31,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 11:52:31,430 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 11:52:31,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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 11:52:31,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 11:52:31,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-05-30 11:52:31,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 11:52:31,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 11:52:31,430 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 11:53:47,765 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 4012 states. [2024-05-30 11:53:47,765 INFO L212 cStratifiedReduction]: Copied states 755 times. [2024-05-30 11:53:47,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 11:53:47,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-30 11:53:47,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 11:53:47,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-05-30 11:53:47,770 INFO L78 Accepts]: Start accepts. Automaton has currently 4880 states, but on-demand construction may add more states Word has length 88 [2024-05-30 11:53:47,771 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 11:53:47,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-05-30 11:53:47,771 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 11:53:47,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 11:53:47,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1344515896, now seen corresponding path program 2 times [2024-05-30 11:53:47,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 11:53:47,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859971688] [2024-05-30 11:53:47,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 11:53:47,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 11:53:47,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 11:53:47,965 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 11:53:47,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 11:53:47,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859971688] [2024-05-30 11:53:47,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859971688] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 11:53:47,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 11:53:47,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-05-30 11:53:47,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085930397] [2024-05-30 11:53:47,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 11:53:47,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-05-30 11:53:47,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 11:53:47,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-05-30 11:53:47,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-05-30 11:53:47,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 11:53:47,968 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 11:53:47,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 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 11:53:47,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 11:53:47,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-05-30 11:53:47,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 11:53:47,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-05-30 11:53:47,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 11:53:47,975 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 11:55:03,049 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 3990 states. [2024-05-30 11:55:03,049 INFO L212 cStratifiedReduction]: Copied states 758 times. [2024-05-30 11:55:03,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 11:55:03,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-30 11:55:03,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 11:55:03,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-05-30 11:55:03,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-05-30 11:55:03,050 INFO L78 Accepts]: Start accepts. Automaton has currently 4830 states, but on-demand construction may add more states Word has length 91 [2024-05-30 11:55:03,051 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 11:55:03,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-05-30 11:55:03,051 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 11:55:03,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 11:55:03,051 INFO L85 PathProgramCache]: Analyzing trace with hash -129676987, now seen corresponding path program 1 times [2024-05-30 11:55:03,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 11:55:03,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700731095] [2024-05-30 11:55:03,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 11:55:03,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 11:55:03,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 11:55:03,224 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 11:55:03,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 11:55:03,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700731095] [2024-05-30 11:55:03,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700731095] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 11:55:03,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 11:55:03,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-05-30 11:55:03,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202690578] [2024-05-30 11:55:03,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 11:55:03,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-05-30 11:55:03,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 11:55:03,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-05-30 11:55:03,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-05-30 11:55:03,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 11:55:03,227 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 11:55:03,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 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 11:55:03,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 11:55:03,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-05-30 11:55:03,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 11:55:03,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-05-30 11:55:03,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-05-30 11:55:03,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 11:55:03,228 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 11:57:19,471 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 8292 states. [2024-05-30 11:57:19,471 INFO L212 cStratifiedReduction]: Copied states 3132 times. [2024-05-30 11:57:19,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 11:57:19,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-30 11:57:19,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 11:57:19,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-05-30 11:57:19,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-05-30 11:57:19,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-30 11:57:19,472 INFO L78 Accepts]: Start accepts. Automaton has currently 7025 states, but on-demand construction may add more states Word has length 91 [2024-05-30 11:57:19,472 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 11:57:19,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-05-30 11:57:19,473 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 11:57:19,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 11:57:19,473 INFO L85 PathProgramCache]: Analyzing trace with hash -378122005, now seen corresponding path program 2 times [2024-05-30 11:57:19,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 11:57:19,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415750361] [2024-05-30 11:57:19,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 11:57:19,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 11:57:19,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 11:57:19,953 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 11:57:19,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 11:57:19,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415750361] [2024-05-30 11:57:19,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415750361] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 11:57:19,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 11:57:19,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-05-30 11:57:19,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724974550] [2024-05-30 11:57:19,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 11:57:19,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-05-30 11:57:19,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 11:57:19,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-05-30 11:57:19,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-05-30 11:57:19,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 11:57:19,956 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 11:57:19,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 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 11:57:19,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 11:57:19,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-05-30 11:57:19,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 11:57:19,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-05-30 11:57:19,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-05-30 11:57:19,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-30 11:57:19,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 11:57:19,957 INFO L199 cStratifiedReduction]: Start building reduction automaton