/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/safe011_power.oepc_pso.oepc_rmo.oepc_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.dynamic-abstractions-a4a1cd3-m [2024-05-30 13:37:17,959 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-30 13:37:18,022 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2024-05-30 13:37:18,026 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-30 13:37:18,026 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-30 13:37:18,027 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-05-30 13:37:18,050 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-30 13:37:18,051 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-30 13:37:18,051 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-30 13:37:18,054 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-30 13:37:18,055 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-30 13:37:18,055 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-30 13:37:18,055 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-30 13:37:18,056 INFO L153 SettingsManager]: * Use SBE=true [2024-05-30 13:37:18,057 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-30 13:37:18,057 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-30 13:37:18,057 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-30 13:37:18,057 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-30 13:37:18,057 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-30 13:37:18,057 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-30 13:37:18,058 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-30 13:37:18,058 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-30 13:37:18,058 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-30 13:37:18,058 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-30 13:37:18,058 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-30 13:37:18,059 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-30 13:37:18,059 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-30 13:37:18,059 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-30 13:37:18,059 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-05-30 13:37:18,059 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-30 13:37:18,060 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-30 13:37:18,060 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-30 13:37:18,061 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-30 13:37:18,061 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2024-05-30 13:37:18,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-30 13:37:18,061 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-30 13:37:18,061 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2024-05-30 13:37:18,061 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2024-05-30 13:37:18,061 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-30 13:37:18,062 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-05-30 13:37:18,062 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-30 13:37:18,062 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2024-05-30 13:37:18,326 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-30 13:37:18,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-30 13:37:18,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-30 13:37:18,349 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-30 13:37:18,350 INFO L274 PluginConnector]: CDTParser initialized [2024-05-30 13:37:18,351 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-wmm/safe011_power.oepc_pso.oepc_rmo.oepc_rmo.opt.i [2024-05-30 13:37:19,428 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-30 13:37:19,637 INFO L384 CDTParser]: Found 1 translation units. [2024-05-30 13:37:19,637 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_power.oepc_pso.oepc_rmo.oepc_rmo.opt.i [2024-05-30 13:37:19,649 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/3d1f882bb/9e1de78d874045d6ae1dcbec49c9da98/FLAG1d3de2674 [2024-05-30 13:37:19,661 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/3d1f882bb/9e1de78d874045d6ae1dcbec49c9da98 [2024-05-30 13:37:19,664 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-30 13:37:19,666 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-30 13:37:19,668 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-30 13:37:19,668 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-30 13:37:19,672 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-30 13:37:19,672 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.05 01:37:19" (1/1) ... [2024-05-30 13:37:19,673 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4491f3b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 01:37:19, skipping insertion in model container [2024-05-30 13:37:19,673 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.05 01:37:19" (1/1) ... [2024-05-30 13:37:19,703 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-30 13:37:19,811 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/safe011_power.oepc_pso.oepc_rmo.oepc_rmo.opt.i[978,991] [2024-05-30 13:37:19,987 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-30 13:37:20,000 INFO L202 MainTranslator]: Completed pre-run [2024-05-30 13:37:20,010 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/safe011_power.oepc_pso.oepc_rmo.oepc_rmo.opt.i[978,991] [2024-05-30 13:37:20,079 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-30 13:37:20,112 INFO L206 MainTranslator]: Completed translation [2024-05-30 13:37:20,113 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 01:37:20 WrapperNode [2024-05-30 13:37:20,113 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-30 13:37:20,114 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-30 13:37:20,114 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-30 13:37:20,114 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-30 13:37:20,119 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 01:37:20" (1/1) ... [2024-05-30 13:37:20,143 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 01:37:20" (1/1) ... [2024-05-30 13:37:20,172 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 143 [2024-05-30 13:37:20,172 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-30 13:37:20,172 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-30 13:37:20,172 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-30 13:37:20,173 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-30 13:37:20,179 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 01:37:20" (1/1) ... [2024-05-30 13:37:20,179 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 01:37:20" (1/1) ... [2024-05-30 13:37:20,192 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 01:37:20" (1/1) ... [2024-05-30 13:37:20,193 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 01:37:20" (1/1) ... [2024-05-30 13:37:20,197 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 01:37:20" (1/1) ... [2024-05-30 13:37:20,198 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 01:37:20" (1/1) ... [2024-05-30 13:37:20,199 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 01:37:20" (1/1) ... [2024-05-30 13:37:20,200 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 01:37:20" (1/1) ... [2024-05-30 13:37:20,202 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-30 13:37:20,203 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-30 13:37:20,203 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-30 13:37:20,203 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-30 13:37:20,204 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 01:37:20" (1/1) ... [2024-05-30 13:37:20,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-30 13:37:20,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 13:37:20,251 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 13:37:20,254 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 13:37:20,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-05-30 13:37:20,285 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-05-30 13:37:20,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-30 13:37:20,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-30 13:37:20,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-30 13:37:20,285 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-05-30 13:37:20,285 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-05-30 13:37:20,286 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-05-30 13:37:20,286 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-05-30 13:37:20,286 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-05-30 13:37:20,286 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-05-30 13:37:20,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-05-30 13:37:20,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-05-30 13:37:20,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-30 13:37:20,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-30 13:37:20,287 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 13:37:20,379 INFO L241 CfgBuilder]: Building ICFG [2024-05-30 13:37:20,380 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-30 13:37:20,613 INFO L282 CfgBuilder]: Performing block encoding [2024-05-30 13:37:20,701 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-30 13:37:20,702 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2024-05-30 13:37:20,702 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.05 01:37:20 BoogieIcfgContainer [2024-05-30 13:37:20,702 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-30 13:37:20,704 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-30 13:37:20,704 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-30 13:37:20,707 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-30 13:37:20,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.05 01:37:19" (1/3) ... [2024-05-30 13:37:20,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3386c109 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.05 01:37:20, skipping insertion in model container [2024-05-30 13:37:20,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 01:37:20" (2/3) ... [2024-05-30 13:37:20,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3386c109 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.05 01:37:20, skipping insertion in model container [2024-05-30 13:37:20,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.05 01:37:20" (3/3) ... [2024-05-30 13:37:20,709 INFO L112 eAbstractionObserver]: Analyzing ICFG safe011_power.oepc_pso.oepc_rmo.oepc_rmo.opt.i [2024-05-30 13:37:20,717 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-05-30 13:37:20,725 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-30 13:37:20,725 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-05-30 13:37:20,725 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-30 13:37:20,773 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-05-30 13:37:20,816 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 13:37:20,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-30 13:37:20,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 13:37:20,819 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 13:37:20,852 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 13:37:20,921 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-30 13:37:20,930 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P0Err0ASSERT_VIOLATIONERROR_FUNCTION ======== [2024-05-30 13:37:20,936 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;@23551014, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 13:37:20,936 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-05-30 13:37:20,939 WARN L438 OrderReductionFacade]: DynamicStratifiedReduction did not find any initial state. Returning directly. [2024-05-30 13:37:20,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-05-30 13:37:20,951 INFO L445 BasicCegarLoop]: Path program histogram: [] [2024-05-30 13:37:20,953 INFO L308 ceAbstractionStarter]: Result for error location P0Err0ASSERT_VIOLATIONERROR_FUNCTION was SAFE (1/6) [2024-05-30 13:37:20,966 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 13:37:20,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-30 13:37:20,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 13:37:21,023 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 13:37:21,046 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-30 13:37:21,046 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2024-05-30 13:37:21,047 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;@23551014, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 13:37:21,047 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-05-30 13:37:21,050 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 13:37:21,060 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 13:37:21,091 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 144 states. [2024-05-30 13:37:21,091 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-30 13:37:21,094 INFO L78 Accepts]: Start accepts. Automaton has currently 146 states, but on-demand construction may add more states Word has length 69 [2024-05-30 13:37:21,097 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 13:37:21,097 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 13:37:21,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 13:37:21,101 INFO L85 PathProgramCache]: Analyzing trace with hash -564007049, now seen corresponding path program 1 times [2024-05-30 13:37:21,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 13:37:21,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935147810] [2024-05-30 13:37:21,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 13:37:21,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 13:37:21,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 13:37:21,402 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 13:37:21,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 13:37:21,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935147810] [2024-05-30 13:37:21,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935147810] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 13:37:21,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 13:37:21,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-30 13:37:21,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883819979] [2024-05-30 13:37:21,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 13:37:21,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-30 13:37:21,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 13:37:21,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-30 13:37:21,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-30 13:37:21,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 13:37:21,428 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 13:37:21,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 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 13:37:21,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 13:37:21,429 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 13:37:27,792 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 717 states. [2024-05-30 13:37:27,793 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-30 13:37:27,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 13:37:27,793 INFO L78 Accepts]: Start accepts. Automaton has currently 1293 states, but on-demand construction may add more states Word has length 68 [2024-05-30 13:37:27,794 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 13:37:27,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-30 13:37:27,795 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 13:37:27,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 13:37:27,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1113801981, now seen corresponding path program 1 times [2024-05-30 13:37:27,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 13:37:27,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594825957] [2024-05-30 13:37:27,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 13:37:27,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 13:37:27,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 13:37:28,585 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 13:37:28,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 13:37:28,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594825957] [2024-05-30 13:37:28,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594825957] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 13:37:28,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 13:37:28,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-05-30 13:37:28,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020880082] [2024-05-30 13:37:28,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 13:37:28,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-05-30 13:37:28,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 13:37:28,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-05-30 13:37:28,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-05-30 13:37:28,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 13:37:28,589 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 13:37:28,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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 13:37:28,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 13:37:28,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 13:37:28,590 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 13:39:29,566 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 4278 states. [2024-05-30 13:39:29,566 INFO L212 cStratifiedReduction]: Copied states 1124 times. [2024-05-30 13:39:29,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 13:39:29,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-05-30 13:39:29,567 INFO L78 Accepts]: Start accepts. Automaton has currently 4422 states, but on-demand construction may add more states Word has length 79 [2024-05-30 13:39:29,568 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 13:39:29,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-05-30 13:39:29,569 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 13:39:29,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 13:39:29,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1887971750, now seen corresponding path program 1 times [2024-05-30 13:39:29,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 13:39:29,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378321034] [2024-05-30 13:39:29,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 13:39:29,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 13:39:29,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 13:39:29,962 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 13:39:29,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 13:39:29,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378321034] [2024-05-30 13:39:29,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378321034] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 13:39:29,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 13:39:29,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-30 13:39:29,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147346596] [2024-05-30 13:39:29,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 13:39:29,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-30 13:39:29,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 13:39:29,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-30 13:39:29,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-30 13:39:29,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 13:39:29,967 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 13:39:29,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 13:39:29,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 13:39:29,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-05-30 13:39:29,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 13:39:29,967 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 13:41:57,217 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 4558 states. [2024-05-30 13:41:57,218 INFO L212 cStratifiedReduction]: Copied states 1669 times. [2024-05-30 13:41:57,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 13:41:57,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-05-30 13:41:57,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 13:41:57,227 INFO L78 Accepts]: Start accepts. Automaton has currently 4309 states, but on-demand construction may add more states Word has length 84 [2024-05-30 13:41:57,229 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 13:41:57,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-05-30 13:41:57,230 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 13:41:57,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 13:41:57,230 INFO L85 PathProgramCache]: Analyzing trace with hash -489445530, now seen corresponding path program 1 times [2024-05-30 13:41:57,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 13:41:57,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466784234] [2024-05-30 13:41:57,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 13:41:57,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 13:41:57,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 13:41:57,453 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 13:41:57,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 13:41:57,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466784234] [2024-05-30 13:41:57,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466784234] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 13:41:57,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 13:41:57,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-30 13:41:57,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966931550] [2024-05-30 13:41:57,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 13:41:57,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-30 13:41:57,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 13:41:57,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-30 13:41:57,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-05-30 13:41:57,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 13:41:57,455 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 13:41:57,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-30 13:41:57,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 13:41:57,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-05-30 13:41:57,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 13:41:57,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 13:41:57,456 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 13:44:38,252 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 4927 states. [2024-05-30 13:44:38,252 INFO L212 cStratifiedReduction]: Copied states 1879 times. [2024-05-30 13:44:38,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 13:44:38,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-05-30 13:44:38,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 13:44:38,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-05-30 13:44:38,253 INFO L78 Accepts]: Start accepts. Automaton has currently 4650 states, but on-demand construction may add more states Word has length 84 [2024-05-30 13:44:38,253 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 13:44:38,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-05-30 13:44:38,254 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 13:44:38,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 13:44:38,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1881253862, now seen corresponding path program 2 times [2024-05-30 13:44:38,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 13:44:38,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108479046] [2024-05-30 13:44:38,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 13:44:38,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 13:44:38,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 13:44:38,454 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 13:44:38,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 13:44:38,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108479046] [2024-05-30 13:44:38,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108479046] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 13:44:38,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 13:44:38,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-05-30 13:44:38,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258736045] [2024-05-30 13:44:38,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 13:44:38,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-05-30 13:44:38,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 13:44:38,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-05-30 13:44:38,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-05-30 13:44:38,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 13:44:38,458 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 13:44:38,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-30 13:44:38,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 13:44:38,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-05-30 13:44:38,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 13:44:38,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-05-30 13:44:38,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 13:44:38,463 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 13:47:25,773 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 4930 states. [2024-05-30 13:47:25,774 INFO L212 cStratifiedReduction]: Copied states 1904 times. [2024-05-30 13:47:25,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 13:47:25,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-05-30 13:47:25,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 13:47:25,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-05-30 13:47:25,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-05-30 13:47:25,774 INFO L78 Accepts]: Start accepts. Automaton has currently 4606 states, but on-demand construction may add more states Word has length 87 [2024-05-30 13:47:25,775 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 13:47:25,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-05-30 13:47:25,775 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 13:47:25,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 13:47:25,776 INFO L85 PathProgramCache]: Analyzing trace with hash 759442242, now seen corresponding path program 1 times [2024-05-30 13:47:25,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 13:47:25,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620172310] [2024-05-30 13:47:25,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 13:47:25,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 13:47:25,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 13:47:26,606 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 13:47:26,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 13:47:26,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620172310] [2024-05-30 13:47:26,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620172310] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 13:47:26,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 13:47:26,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-05-30 13:47:26,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779298365] [2024-05-30 13:47:26,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 13:47:26,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-05-30 13:47:26,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 13:47:26,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-05-30 13:47:26,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-05-30 13:47:26,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 13:47:26,608 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 13:47:26,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 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 13:47:26,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 13:47:26,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-05-30 13:47:26,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 13:47:26,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-05-30 13:47:26,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-05-30 13:47:26,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 13:47:26,609 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 13:48:33,250 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 4649 states. [2024-05-30 13:48:33,251 INFO L212 cStratifiedReduction]: Copied states 598 times. [2024-05-30 13:48:33,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 13:48:33,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-05-30 13:48:33,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 13:48:33,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-05-30 13:48:33,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-05-30 13:48:33,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-30 13:48:33,252 INFO L78 Accepts]: Start accepts. Automaton has currently 6578 states, but on-demand construction may add more states Word has length 87 [2024-05-30 13:48:33,253 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 13:48:33,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-05-30 13:48:33,253 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 13:48:33,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 13:48:33,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1122854918, now seen corresponding path program 2 times [2024-05-30 13:48:33,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 13:48:33,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515625252] [2024-05-30 13:48:33,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 13:48:33,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 13:48:33,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 13:48:34,110 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 13:48:34,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 13:48:34,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515625252] [2024-05-30 13:48:34,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515625252] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 13:48:34,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 13:48:34,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-05-30 13:48:34,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057524133] [2024-05-30 13:48:34,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 13:48:34,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-05-30 13:48:34,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 13:48:34,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-05-30 13:48:34,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-05-30 13:48:34,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 13:48:34,112 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 13:48:34,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 13 states have internal predecessors, (87), 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 13:48:34,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 13:48:34,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-05-30 13:48:34,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 13:48:34,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-05-30 13:48:34,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-05-30 13:48:34,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-05-30 13:48:34,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 13:48:34,113 INFO L199 cStratifiedReduction]: Start building reduction automaton