/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/mix035_pso.opt_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.dynamic-abstractions-a4a1cd3-m [2024-05-30 12:28:31,782 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-30 12:28:31,844 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2024-05-30 12:28:31,848 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-30 12:28:31,849 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-30 12:28:31,849 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-05-30 12:28:31,879 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-30 12:28:31,880 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-30 12:28:31,880 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-30 12:28:31,883 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-30 12:28:31,884 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-30 12:28:31,884 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-30 12:28:31,884 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-30 12:28:31,886 INFO L153 SettingsManager]: * Use SBE=true [2024-05-30 12:28:31,886 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-30 12:28:31,886 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-30 12:28:31,886 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-30 12:28:31,886 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-30 12:28:31,886 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-30 12:28:31,887 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-30 12:28:31,887 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-30 12:28:31,887 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-30 12:28:31,887 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-30 12:28:31,887 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-30 12:28:31,888 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-30 12:28:31,888 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-30 12:28:31,888 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-30 12:28:31,888 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-30 12:28:31,888 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-05-30 12:28:31,889 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-30 12:28:31,889 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-30 12:28:31,890 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-30 12:28:31,890 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-30 12:28:31,890 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2024-05-30 12:28:31,890 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-30 12:28:31,890 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-30 12:28:31,890 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2024-05-30 12:28:31,891 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2024-05-30 12:28:31,891 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-30 12:28:31,891 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-05-30 12:28:31,891 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-30 12:28:31,891 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2024-05-30 12:28:32,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-30 12:28:32,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-30 12:28:32,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-30 12:28:32,133 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-30 12:28:32,135 INFO L274 PluginConnector]: CDTParser initialized [2024-05-30 12:28:32,137 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-wmm/mix035_pso.opt_tso.opt.i [2024-05-30 12:28:33,252 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-30 12:28:33,479 INFO L384 CDTParser]: Found 1 translation units. [2024-05-30 12:28:33,479 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix035_pso.opt_tso.opt.i [2024-05-30 12:28:33,497 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/532db1cc2/909cc30e06764ea8b6492dd4c1fb3da8/FLAGecc8f5681 [2024-05-30 12:28:33,507 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/532db1cc2/909cc30e06764ea8b6492dd4c1fb3da8 [2024-05-30 12:28:33,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-30 12:28:33,510 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-30 12:28:33,511 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-30 12:28:33,511 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-30 12:28:33,515 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-30 12:28:33,515 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.05 12:28:33" (1/1) ... [2024-05-30 12:28:33,516 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71f1f1f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 12:28:33, skipping insertion in model container [2024-05-30 12:28:33,516 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.05 12:28:33" (1/1) ... [2024-05-30 12:28:33,558 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-30 12:28:33,664 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/mix035_pso.opt_tso.opt.i[956,969] [2024-05-30 12:28:33,827 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-30 12:28:33,836 INFO L202 MainTranslator]: Completed pre-run [2024-05-30 12:28:33,844 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/mix035_pso.opt_tso.opt.i[956,969] [2024-05-30 12:28:33,883 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-30 12:28:33,918 INFO L206 MainTranslator]: Completed translation [2024-05-30 12:28:33,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 12:28:33 WrapperNode [2024-05-30 12:28:33,922 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-30 12:28:33,923 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-30 12:28:33,923 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-30 12:28:33,923 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-30 12:28:33,929 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 12:28:33" (1/1) ... [2024-05-30 12:28:33,949 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 12:28:33" (1/1) ... [2024-05-30 12:28:33,992 INFO L138 Inliner]: procedures = 176, calls = 58, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 136 [2024-05-30 12:28:33,992 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-30 12:28:33,993 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-30 12:28:33,993 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-30 12:28:33,993 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-30 12:28:34,001 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 12:28:33" (1/1) ... [2024-05-30 12:28:34,001 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 12:28:33" (1/1) ... [2024-05-30 12:28:34,004 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 12:28:33" (1/1) ... [2024-05-30 12:28:34,004 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 12:28:33" (1/1) ... [2024-05-30 12:28:34,040 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 12:28:33" (1/1) ... [2024-05-30 12:28:34,042 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 12:28:33" (1/1) ... [2024-05-30 12:28:34,043 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 12:28:33" (1/1) ... [2024-05-30 12:28:34,044 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 12:28:33" (1/1) ... [2024-05-30 12:28:34,053 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-30 12:28:34,054 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-30 12:28:34,054 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-30 12:28:34,054 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-30 12:28:34,054 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 12:28:33" (1/1) ... [2024-05-30 12:28:34,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-30 12:28:34,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 12:28:34,090 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 12:28:34,094 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 12:28:34,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-05-30 12:28:34,121 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-05-30 12:28:34,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-30 12:28:34,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-30 12:28:34,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-30 12:28:34,121 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-05-30 12:28:34,121 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-05-30 12:28:34,122 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-05-30 12:28:34,122 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-05-30 12:28:34,122 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-05-30 12:28:34,122 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-05-30 12:28:34,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-05-30 12:28:34,122 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-05-30 12:28:34,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-30 12:28:34,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-30 12:28:34,123 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 12:28:34,213 INFO L241 CfgBuilder]: Building ICFG [2024-05-30 12:28:34,214 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-30 12:28:34,489 INFO L282 CfgBuilder]: Performing block encoding [2024-05-30 12:28:34,563 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-30 12:28:34,563 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2024-05-30 12:28:34,563 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.05 12:28:34 BoogieIcfgContainer [2024-05-30 12:28:34,563 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-30 12:28:34,565 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-30 12:28:34,565 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-30 12:28:34,568 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-30 12:28:34,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.05 12:28:33" (1/3) ... [2024-05-30 12:28:34,569 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32cc532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.05 12:28:34, skipping insertion in model container [2024-05-30 12:28:34,569 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 12:28:33" (2/3) ... [2024-05-30 12:28:34,569 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32cc532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.05 12:28:34, skipping insertion in model container [2024-05-30 12:28:34,569 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.05 12:28:34" (3/3) ... [2024-05-30 12:28:34,570 INFO L112 eAbstractionObserver]: Analyzing ICFG mix035_pso.opt_tso.opt.i [2024-05-30 12:28:34,576 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-05-30 12:28:34,583 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-30 12:28:34,583 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-05-30 12:28:34,583 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-30 12:28:34,628 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-05-30 12:28:34,672 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 12:28:34,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-30 12:28:34,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 12:28:34,712 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 12:28:34,748 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 12:28:34,790 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-30 12:28:34,797 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Err0ASSERT_VIOLATIONERROR_FUNCTION ======== [2024-05-30 12:28:34,802 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;@129ba3f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 12:28:34,802 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-05-30 12:28:34,805 WARN L438 OrderReductionFacade]: DynamicStratifiedReduction did not find any initial state. Returning directly. [2024-05-30 12:28:34,807 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-05-30 12:28:34,814 INFO L445 BasicCegarLoop]: Path program histogram: [] [2024-05-30 12:28:34,815 INFO L308 ceAbstractionStarter]: Result for error location P2Err0ASSERT_VIOLATIONERROR_FUNCTION was SAFE (1/6) [2024-05-30 12:28:34,828 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 12:28:34,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-30 12:28:34,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 12:28:34,866 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 12:28:34,872 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-30 12:28:34,873 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2024-05-30 12:28:34,873 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;@129ba3f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 12:28:34,873 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-05-30 12:28:34,876 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 12:28:34,881 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 12:28:34,914 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 148 states. [2024-05-30 12:28:34,915 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-30 12:28:34,917 INFO L78 Accepts]: Start accepts. Automaton has currently 150 states, but on-demand construction may add more states Word has length 73 [2024-05-30 12:28:34,921 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 12:28:34,922 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 12:28:34,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 12:28:34,925 INFO L85 PathProgramCache]: Analyzing trace with hash 588626326, now seen corresponding path program 1 times [2024-05-30 12:28:34,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 12:28:34,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051799036] [2024-05-30 12:28:34,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 12:28:34,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 12:28:35,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 12:28:35,151 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 12:28:35,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 12:28:35,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051799036] [2024-05-30 12:28:35,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051799036] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 12:28:35,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 12:28:35,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-30 12:28:35,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067206859] [2024-05-30 12:28:35,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 12:28:35,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-30 12:28:35,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 12:28:35,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-30 12:28:35,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-30 12:28:35,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:28:35,180 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 12:28:35,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 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 12:28:35,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:28:35,181 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 12:28:46,819 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 849 states. [2024-05-30 12:28:46,820 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-30 12:28:46,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:28:46,821 INFO L78 Accepts]: Start accepts. Automaton has currently 1553 states, but on-demand construction may add more states Word has length 72 [2024-05-30 12:28:46,822 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 12:28:46,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-30 12:28:46,824 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 12:28:46,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 12:28:46,825 INFO L85 PathProgramCache]: Analyzing trace with hash 841033159, now seen corresponding path program 1 times [2024-05-30 12:28:46,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 12:28:46,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731590657] [2024-05-30 12:28:46,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 12:28:46,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 12:28:46,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 12:28:47,310 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 12:28:47,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 12:28:47,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731590657] [2024-05-30 12:28:47,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731590657] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 12:28:47,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 12:28:47,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-30 12:28:47,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975755854] [2024-05-30 12:28:47,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 12:28:47,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-30 12:28:47,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 12:28:47,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-30 12:28:47,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-05-30 12:28:47,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:28:47,313 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 12:28:47,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 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 12:28:47,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:28:47,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:28:47,314 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 12:29:43,294 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 4141 states. [2024-05-30 12:29:43,295 INFO L212 cStratifiedReduction]: Copied states 447 times. [2024-05-30 12:29:43,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:29:43,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-30 12:29:43,295 INFO L78 Accepts]: Start accepts. Automaton has currently 5099 states, but on-demand construction may add more states Word has length 90 [2024-05-30 12:29:43,302 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 12:29:43,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-05-30 12:29:43,314 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 12:29:43,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 12:29:43,315 INFO L85 PathProgramCache]: Analyzing trace with hash -481667087, now seen corresponding path program 1 times [2024-05-30 12:29:43,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 12:29:43,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642505668] [2024-05-30 12:29:43,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 12:29:43,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 12:29:43,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 12:29:43,583 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 12:29:43,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 12:29:43,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642505668] [2024-05-30 12:29:43,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642505668] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 12:29:43,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 12:29:43,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-30 12:29:43,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557721565] [2024-05-30 12:29:43,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 12:29:43,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-30 12:29:43,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 12:29:43,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-30 12:29:43,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-05-30 12:29:43,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:29:43,586 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 12:29:43,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 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 12:29:43,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:29:43,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-05-30 12:29:43,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:29:43,587 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 12:30:43,568 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 4382 states. [2024-05-30 12:30:43,568 INFO L212 cStratifiedReduction]: Copied states 532 times. [2024-05-30 12:30:43,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:30:43,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-30 12:30:43,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-05-30 12:30:43,570 INFO L78 Accepts]: Start accepts. Automaton has currently 5472 states, but on-demand construction may add more states Word has length 90 [2024-05-30 12:30:43,571 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 12:30:43,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-05-30 12:30:43,571 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 12:30:43,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 12:30:43,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1668766607, now seen corresponding path program 2 times [2024-05-30 12:30:43,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 12:30:43,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785691289] [2024-05-30 12:30:43,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 12:30:43,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 12:30:43,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 12:30:43,752 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 12:30:43,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 12:30:43,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785691289] [2024-05-30 12:30:43,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785691289] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 12:30:43,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 12:30:43,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-05-30 12:30:43,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611996002] [2024-05-30 12:30:43,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 12:30:43,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-05-30 12:30:43,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 12:30:43,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-05-30 12:30:43,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-05-30 12:30:43,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:30:43,755 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 12:30:43,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 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 12:30:43,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:30:43,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-05-30 12:30:43,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-05-30 12:30:43,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:30:43,755 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 12:31:42,846 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 4351 states. [2024-05-30 12:31:42,846 INFO L212 cStratifiedReduction]: Copied states 532 times. [2024-05-30 12:31:42,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:31:42,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-30 12:31:42,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-05-30 12:31:42,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-05-30 12:31:42,854 INFO L78 Accepts]: Start accepts. Automaton has currently 5410 states, but on-demand construction may add more states Word has length 93 [2024-05-30 12:31:42,856 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 12:31:42,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-05-30 12:31:42,857 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 12:31:42,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 12:31:42,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1099656413, now seen corresponding path program 1 times [2024-05-30 12:31:42,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 12:31:42,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455474319] [2024-05-30 12:31:42,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 12:31:42,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 12:31:42,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 12:31:43,073 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 12:31:43,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 12:31:43,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455474319] [2024-05-30 12:31:43,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455474319] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 12:31:43,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 12:31:43,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-05-30 12:31:43,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743207970] [2024-05-30 12:31:43,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 12:31:43,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-05-30 12:31:43,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 12:31:43,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-05-30 12:31:43,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-05-30 12:31:43,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:31:43,077 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 12:31:43,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 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 12:31:43,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:31:43,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-05-30 12:31:43,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-05-30 12:31:43,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-05-30 12:31:43,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:31:43,082 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 12:33:28,910 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 8828 states. [2024-05-30 12:33:28,910 INFO L212 cStratifiedReduction]: Copied states 2963 times. [2024-05-30 12:33:28,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:33:28,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-30 12:33:28,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-05-30 12:33:28,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-05-30 12:33:28,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-30 12:33:28,911 INFO L78 Accepts]: Start accepts. Automaton has currently 8010 states, but on-demand construction may add more states Word has length 93 [2024-05-30 12:33:28,911 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 12:33:28,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-05-30 12:33:28,912 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 12:33:28,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 12:33:28,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1309135651, now seen corresponding path program 2 times [2024-05-30 12:33:28,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 12:33:28,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341046408] [2024-05-30 12:33:28,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 12:33:28,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 12:33:28,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 12:33:29,426 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 12:33:29,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 12:33:29,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341046408] [2024-05-30 12:33:29,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341046408] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 12:33:29,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 12:33:29,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-05-30 12:33:29,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034193834] [2024-05-30 12:33:29,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 12:33:29,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-05-30 12:33:29,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 12:33:29,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-05-30 12:33:29,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-05-30 12:33:29,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:33:29,430 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 12:33:29,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 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 12:33:29,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:33:29,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-05-30 12:33:29,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-05-30 12:33:29,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-05-30 12:33:29,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-30 12:33:29,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:33:29,430 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 12:35:26,970 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 11238 states. [2024-05-30 12:35:26,970 INFO L212 cStratifiedReduction]: Copied states 3582 times. [2024-05-30 12:35:26,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:35:26,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-30 12:35:26,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-05-30 12:35:26,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-05-30 12:35:26,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-30 12:35:26,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-05-30 12:35:26,971 INFO L78 Accepts]: Start accepts. Automaton has currently 10556 states, but on-demand construction may add more states Word has length 93 [2024-05-30 12:35:26,971 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 12:35:26,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-05-30 12:35:26,972 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 12:35:26,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 12:35:26,972 INFO L85 PathProgramCache]: Analyzing trace with hash 714396641, now seen corresponding path program 3 times [2024-05-30 12:35:26,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 12:35:26,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075038474] [2024-05-30 12:35:26,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 12:35:26,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 12:35:26,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 12:35:27,129 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 12:35:27,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 12:35:27,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075038474] [2024-05-30 12:35:27,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075038474] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 12:35:27,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 12:35:27,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-05-30 12:35:27,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336654310] [2024-05-30 12:35:27,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 12:35:27,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-05-30 12:35:27,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 12:35:27,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-05-30 12:35:27,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-05-30 12:35:27,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:35:27,133 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 12:35:27,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 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 12:35:27,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:35:27,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-05-30 12:35:27,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-05-30 12:35:27,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-05-30 12:35:27,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-30 12:35:27,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-05-30 12:35:27,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 12:35:27,134 INFO L199 cStratifiedReduction]: Start building reduction automaton