/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION --traceabstraction.trace.refinement.strategy BADGER -s ../../../trunk/examples/settings/gemcutter/SleepMap-ConcreteSmt-VarAbsGlobalSyntactic.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk26/divinefifo_1w1r.line1111.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-e57bdd3-m [2022-10-24 15:15:56,985 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-24 15:15:56,988 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-24 15:15:57,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-24 15:15:57,021 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-24 15:15:57,023 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-24 15:15:57,026 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-24 15:15:57,031 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-24 15:15:57,035 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-24 15:15:57,039 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-24 15:15:57,040 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-24 15:15:57,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-24 15:15:57,042 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-24 15:15:57,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-24 15:15:57,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-24 15:15:57,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-24 15:15:57,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-24 15:15:57,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-24 15:15:57,052 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-24 15:15:57,054 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-24 15:15:57,055 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-24 15:15:57,058 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-24 15:15:57,059 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-24 15:15:57,060 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-24 15:15:57,062 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-24 15:15:57,062 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-24 15:15:57,062 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-24 15:15:57,063 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-24 15:15:57,063 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-24 15:15:57,063 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-24 15:15:57,064 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-24 15:15:57,064 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-24 15:15:57,065 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-24 15:15:57,065 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-24 15:15:57,065 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-24 15:15:57,066 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-24 15:15:57,066 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-24 15:15:57,066 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-24 15:15:57,066 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-24 15:15:57,067 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-24 15:15:57,067 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-24 15:15:57,073 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/SleepMap-ConcreteSmt-VarAbsGlobalSyntactic.epf [2022-10-24 15:15:57,104 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-24 15:15:57,104 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-24 15:15:57,105 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-24 15:15:57,105 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-24 15:15:57,106 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-24 15:15:57,106 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-24 15:15:57,108 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-24 15:15:57,108 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-24 15:15:57,108 INFO L138 SettingsManager]: * Use SBE=true [2022-10-24 15:15:57,109 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-24 15:15:57,109 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-24 15:15:57,109 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-24 15:15:57,109 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-24 15:15:57,109 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-24 15:15:57,110 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-24 15:15:57,110 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-24 15:15:57,110 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-24 15:15:57,110 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-24 15:15:57,110 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-24 15:15:57,110 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-24 15:15:57,110 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-24 15:15:57,110 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-24 15:15:57,110 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-24 15:15:57,111 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-24 15:15:57,111 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-24 15:15:57,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-24 15:15:57,111 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-24 15:15:57,111 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-24 15:15:57,111 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-24 15:15:57,111 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-24 15:15:57,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-24 15:15:57,111 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-24 15:15:57,112 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-24 15:15:57,112 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-24 15:15:57,112 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-24 15:15:57,112 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-24 15:15:57,112 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-24 15:15:57,112 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-24 15:15:57,112 INFO L138 SettingsManager]: * Number of independence relations to use for POR=2 [2022-10-24 15:15:57,112 INFO L138 SettingsManager]: * Independence relation used for POR in concurrent analysis=SYNTACTIC 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/UAutomizer-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> BADGER [2022-10-24 15:15:57,413 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-24 15:15:57,436 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-24 15:15:57,439 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-24 15:15:57,440 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-24 15:15:57,441 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-24 15:15:57,443 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk26/divinefifo_1w1r.line1111.bpl [2022-10-24 15:15:57,443 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk26/divinefifo_1w1r.line1111.bpl' [2022-10-24 15:15:57,533 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-24 15:15:57,534 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-10-24 15:15:57,540 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-24 15:15:57,540 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-24 15:15:57,540 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-24 15:15:57,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "divinefifo_1w1r.line1111.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 03:15:57" (1/1) ... [2022-10-24 15:15:57,589 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "divinefifo_1w1r.line1111.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 03:15:57" (1/1) ... [2022-10-24 15:15:57,604 INFO L138 Inliner]: procedures = 2, calls = 1, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-10-24 15:15:57,605 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-24 15:15:57,606 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-24 15:15:57,606 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-24 15:15:57,606 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-24 15:15:57,612 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "divinefifo_1w1r.line1111.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 03:15:57" (1/1) ... [2022-10-24 15:15:57,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "divinefifo_1w1r.line1111.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 03:15:57" (1/1) ... [2022-10-24 15:15:57,625 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "divinefifo_1w1r.line1111.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 03:15:57" (1/1) ... [2022-10-24 15:15:57,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "divinefifo_1w1r.line1111.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 03:15:57" (1/1) ... [2022-10-24 15:15:57,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "divinefifo_1w1r.line1111.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 03:15:57" (1/1) ... [2022-10-24 15:15:57,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "divinefifo_1w1r.line1111.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 03:15:57" (1/1) ... [2022-10-24 15:15:57,674 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "divinefifo_1w1r.line1111.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 03:15:57" (1/1) ... [2022-10-24 15:15:57,684 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-24 15:15:57,685 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-24 15:15:57,685 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-24 15:15:57,685 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-24 15:15:57,700 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "divinefifo_1w1r.line1111.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 03:15:57" (1/1) ... [2022-10-24 15:15:57,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-24 15:15:57,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 15:15:57,726 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-24 15:15:57,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-24 15:15:57,789 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2022-10-24 15:15:57,790 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2022-10-24 15:15:57,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-24 15:15:57,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-24 15:15:57,792 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-24 15:15:57,990 INFO L234 CfgBuilder]: Building ICFG [2022-10-24 15:15:58,003 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-24 15:15:59,103 INFO L275 CfgBuilder]: Performing block encoding [2022-10-24 15:15:59,119 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-24 15:15:59,120 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-24 15:15:59,123 INFO L202 PluginConnector]: Adding new model divinefifo_1w1r.line1111.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:15:59 BoogieIcfgContainer [2022-10-24 15:15:59,123 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-24 15:15:59,125 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-24 15:15:59,125 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-24 15:15:59,128 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-24 15:15:59,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo_1w1r.line1111.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 03:15:57" (1/2) ... [2022-10-24 15:15:59,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56043f2e and model type divinefifo_1w1r.line1111.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:15:59, skipping insertion in model container [2022-10-24 15:15:59,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo_1w1r.line1111.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:15:59" (2/2) ... [2022-10-24 15:15:59,130 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo_1w1r.line1111.bpl [2022-10-24 15:15:59,136 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-24 15:15:59,144 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-24 15:15:59,144 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-24 15:15:59,144 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-24 15:15:59,238 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-10-24 15:15:59,286 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-24 15:15:59,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-24 15:15:59,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 15:15:59,304 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-24 15:15:59,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-10-24 15:15:59,331 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 15:15:59,360 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2022-10-24 15:15:59,361 WARN L162 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2022-10-24 15:15:59,361 WARN L163 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2022-10-24 15:15:59,366 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-10-24 15:15:59,384 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;@41459296, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 15:15:59,385 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-24 15:16:00,834 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 15:16:00,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 15:16:00,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1805962546, now seen corresponding path program 1 times [2022-10-24 15:16:00,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 15:16:00,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294652631] [2022-10-24 15:16:00,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 15:16:00,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 15:16:01,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 15:16:01,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-24 15:16:01,321 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 15:16:01,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294652631] [2022-10-24 15:16:01,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294652631] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 15:16:01,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 15:16:01,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-24 15:16:01,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646371938] [2022-10-24 15:16:01,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 15:16:01,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-24 15:16:01,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 15:16:01,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-24 15:16:01,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-24 15:16:01,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 15:16:01,385 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 15:16:01,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 179.0) internal successors, (358), 2 states have internal predecessors, (358), 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) [2022-10-24 15:16:01,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 15:16:02,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 15:16:02,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-24 15:16:02,172 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 15:16:02,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 15:16:02,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1168905010, now seen corresponding path program 1 times [2022-10-24 15:16:02,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 15:16:02,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999360875] [2022-10-24 15:16:02,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 15:16:02,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 15:16:02,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 15:16:02,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-24 15:16:02,997 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 15:16:02,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999360875] [2022-10-24 15:16:02,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999360875] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 15:16:02,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 15:16:02,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-10-24 15:16:02,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593880521] [2022-10-24 15:16:02,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 15:16:03,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-24 15:16:03,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 15:16:03,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-24 15:16:03,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-10-24 15:16:03,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 15:16:03,005 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 15:16:03,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 30.428571428571427) internal successors, (426), 15 states have internal predecessors, (426), 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) [2022-10-24 15:16:03,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 15:16:03,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 15:16:26,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 15:16:26,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-10-24 15:16:26,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-24 15:16:26,253 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 15:16:26,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 15:16:26,254 INFO L85 PathProgramCache]: Analyzing trace with hash -771286236, now seen corresponding path program 1 times [2022-10-24 15:16:26,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 15:16:26,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427540428] [2022-10-24 15:16:26,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 15:16:26,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 15:16:29,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 15:16:38,740 INFO L134 CoverageAnalysis]: Checked inductivity of 46149 backedges. 0 proven. 1306 refuted. 0 times theorem prover too weak. 44843 trivial. 0 not checked. [2022-10-24 15:16:38,740 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 15:16:38,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427540428] [2022-10-24 15:16:38,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427540428] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-24 15:16:38,741 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-24 15:16:38,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2022-10-24 15:16:38,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562243877] [2022-10-24 15:16:38,742 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-24 15:16:38,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-24 15:16:38,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 15:16:38,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-24 15:16:38,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-10-24 15:16:38,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 15:16:38,755 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 15:16:38,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 121.18181818181819) internal successors, (1333), 12 states have internal predecessors, (1333), 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) [2022-10-24 15:16:38,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 15:16:38,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-10-24 15:16:38,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 15:17:02,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 15:17:02,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-10-24 15:17:02,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-24 15:17:02,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-24 15:17:02,527 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 15:17:02,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 15:17:02,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1423858866, now seen corresponding path program 2 times [2022-10-24 15:17:02,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 15:17:02,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908458830] [2022-10-24 15:17:02,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 15:17:02,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 15:17:07,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat