/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/NewStatesSleep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk25/divinefifo-bug_1w1r.line1613.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-e57bdd3-m [2022-10-24 11:03:44,867 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-24 11:03:44,869 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-24 11:03:44,899 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-24 11:03:44,899 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-24 11:03:44,901 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-24 11:03:44,904 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-24 11:03:44,907 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-24 11:03:44,908 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-24 11:03:44,912 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-24 11:03:44,913 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-24 11:03:44,915 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-24 11:03:44,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-24 11:03:44,916 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-24 11:03:44,917 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-24 11:03:44,918 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-24 11:03:44,918 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-24 11:03:44,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-24 11:03:44,922 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-24 11:03:44,923 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-24 11:03:44,924 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-24 11:03:44,925 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-24 11:03:44,926 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-24 11:03:44,928 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-24 11:03:44,932 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-24 11:03:44,932 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-24 11:03:44,932 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-24 11:03:44,933 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-24 11:03:44,933 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-24 11:03:44,933 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-24 11:03:44,933 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-24 11:03:44,934 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-24 11:03:44,934 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-24 11:03:44,935 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-24 11:03:44,935 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-24 11:03:44,935 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-24 11:03:44,936 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-24 11:03:44,936 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-24 11:03:44,936 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-24 11:03:44,937 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-24 11:03:44,937 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-24 11:03:44,941 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2022-10-24 11:03:44,962 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-24 11:03:44,962 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-24 11:03:44,963 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-24 11:03:44,963 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-24 11:03:44,964 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-24 11:03:44,964 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-24 11:03:44,965 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-24 11:03:44,965 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-24 11:03:44,965 INFO L138 SettingsManager]: * Use SBE=true [2022-10-24 11:03:44,965 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-24 11:03:44,966 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-24 11:03:44,966 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-24 11:03:44,966 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-24 11:03:44,966 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-24 11:03:44,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-24 11:03:44,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-24 11:03:44,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-24 11:03:44,967 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-24 11:03:44,967 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-24 11:03:44,967 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-24 11:03:44,967 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-24 11:03:44,967 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-24 11:03:44,967 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-24 11:03:44,967 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-24 11:03:44,967 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-24 11:03:44,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-24 11:03:44,967 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-24 11:03:44,968 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-24 11:03:44,968 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-24 11:03:44,968 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-24 11:03:44,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-24 11:03:44,968 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-24 11:03:44,968 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-24 11:03:44,968 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-24 11:03:44,968 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-24 11:03:44,968 INFO L138 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> BADGER [2022-10-24 11:03:45,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-24 11:03:45,260 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-24 11:03:45,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-24 11:03:45,262 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-24 11:03:45,264 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-24 11:03:45,265 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk25/divinefifo-bug_1w1r.line1613.bpl [2022-10-24 11:03:45,265 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk25/divinefifo-bug_1w1r.line1613.bpl' [2022-10-24 11:03:45,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-24 11:03:45,346 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-10-24 11:03:45,347 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-24 11:03:45,347 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-24 11:03:45,347 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-24 11:03:45,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "divinefifo-bug_1w1r.line1613.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 11:03:45" (1/1) ... [2022-10-24 11:03:45,386 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "divinefifo-bug_1w1r.line1613.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 11:03:45" (1/1) ... [2022-10-24 11:03:45,400 INFO L138 Inliner]: procedures = 2, calls = 1, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-10-24 11:03:45,401 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-24 11:03:45,402 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-24 11:03:45,402 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-24 11:03:45,402 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-24 11:03:45,407 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1613.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 11:03:45" (1/1) ... [2022-10-24 11:03:45,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1613.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 11:03:45" (1/1) ... [2022-10-24 11:03:45,418 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1613.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 11:03:45" (1/1) ... [2022-10-24 11:03:45,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1613.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 11:03:45" (1/1) ... [2022-10-24 11:03:45,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1613.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 11:03:45" (1/1) ... [2022-10-24 11:03:45,487 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1613.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 11:03:45" (1/1) ... [2022-10-24 11:03:45,491 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1613.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 11:03:45" (1/1) ... [2022-10-24 11:03:45,512 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-24 11:03:45,513 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-24 11:03:45,513 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-24 11:03:45,513 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-24 11:03:45,518 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "divinefifo-bug_1w1r.line1613.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 11:03:45" (1/1) ... [2022-10-24 11:03:45,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-24 11:03:45,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 11:03:45,569 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 11:03:45,578 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 11:03:45,608 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2022-10-24 11:03:45,608 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2022-10-24 11:03:45,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-24 11:03:45,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-24 11:03:45,610 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 11:03:45,780 INFO L234 CfgBuilder]: Building ICFG [2022-10-24 11:03:45,781 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-24 11:03:46,657 INFO L275 CfgBuilder]: Performing block encoding [2022-10-24 11:03:46,681 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-24 11:03:46,682 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-24 11:03:46,684 INFO L202 PluginConnector]: Adding new model divinefifo-bug_1w1r.line1613.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:03:46 BoogieIcfgContainer [2022-10-24 11:03:46,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-24 11:03:46,685 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-24 11:03:46,685 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-24 11:03:46,687 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-24 11:03:46,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo-bug_1w1r.line1613.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 11:03:45" (1/2) ... [2022-10-24 11:03:46,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55b1df0 and model type divinefifo-bug_1w1r.line1613.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:03:46, skipping insertion in model container [2022-10-24 11:03:46,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo-bug_1w1r.line1613.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:03:46" (2/2) ... [2022-10-24 11:03:46,689 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo-bug_1w1r.line1613.bpl [2022-10-24 11:03:46,698 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-24 11:03:46,704 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-24 11:03:46,704 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-24 11:03:46,704 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-24 11:03:46,814 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-10-24 11:03:46,873 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 11:03:46,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-24 11:03:46,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 11:03:46,886 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 11:03:46,903 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 11:03:46,915 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-24 11:03:46,927 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-10-24 11:03:46,932 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;@1632e48d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 11:03:46,932 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-24 11:03:47,106 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 11:03:47,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 11:03:47,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1169525397, now seen corresponding path program 1 times [2022-10-24 11:03:47,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 11:03:47,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420432795] [2022-10-24 11:03:47,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 11:03:47,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 11:03:47,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 11:03:47,691 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 11:03:47,692 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 11:03:47,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420432795] [2022-10-24 11:03:47,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420432795] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 11:03:47,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 11:03:47,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-24 11:03:47,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727211942] [2022-10-24 11:03:47,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 11:03:47,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-24 11:03:47,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 11:03:47,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-24 11:03:47,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-24 11:03:47,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:03:47,754 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 11:03:47,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 374.5) internal successors, (749), 2 states have internal predecessors, (749), 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 11:03:47,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:03:47,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:03:47,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-24 11:03:47,892 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 11:03:47,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 11:03:47,892 INFO L85 PathProgramCache]: Analyzing trace with hash -503753295, now seen corresponding path program 1 times [2022-10-24 11:03:47,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 11:03:47,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96232792] [2022-10-24 11:03:47,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 11:03:47,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 11:03:48,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 11:03:48,442 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 11:03:48,442 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 11:03:48,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96232792] [2022-10-24 11:03:48,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96232792] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 11:03:48,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 11:03:48,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-10-24 11:03:48,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848257386] [2022-10-24 11:03:48,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 11:03:48,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-24 11:03:48,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 11:03:48,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-24 11:03:48,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-10-24 11:03:48,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:03:48,445 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 11:03:48,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 62.53846153846154) internal successors, (813), 14 states have internal predecessors, (813), 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 11:03:48,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:03:48,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:03:50,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:03:50,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-24 11:03:50,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-24 11:03:50,179 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 11:03:50,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 11:03:50,180 INFO L85 PathProgramCache]: Analyzing trace with hash 418783263, now seen corresponding path program 1 times [2022-10-24 11:03:50,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 11:03:50,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129097726] [2022-10-24 11:03:50,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 11:03:50,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 11:03:51,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 11:03:55,140 INFO L134 CoverageAnalysis]: Checked inductivity of 3290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3290 trivial. 0 not checked. [2022-10-24 11:03:55,140 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 11:03:55,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129097726] [2022-10-24 11:03:55,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129097726] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 11:03:55,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 11:03:55,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [71] imperfect sequences [] total 71 [2022-10-24 11:03:55,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290118622] [2022-10-24 11:03:55,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 11:03:55,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2022-10-24 11:03:55,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 11:03:55,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2022-10-24 11:03:55,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=4739, Unknown=0, NotChecked=0, Total=4970 [2022-10-24 11:03:55,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:03:55,145 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 11:03:55,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 71 states have (on average 13.830985915492958) internal successors, (982), 71 states have internal predecessors, (982), 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 11:03:55,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:03:55,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-10-24 11:03:55,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:04:16,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:04:16,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-24 11:04:16,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2022-10-24 11:04:16,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-24 11:04:16,942 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 11:04:16,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 11:04:16,943 INFO L85 PathProgramCache]: Analyzing trace with hash -991002095, now seen corresponding path program 2 times [2022-10-24 11:04:16,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 11:04:16,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316474232] [2022-10-24 11:04:16,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 11:04:16,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 11:04:18,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 11:04:25,114 INFO L134 CoverageAnalysis]: Checked inductivity of 24178 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 24158 trivial. 0 not checked. [2022-10-24 11:04:25,114 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 11:04:25,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316474232] [2022-10-24 11:04:25,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316474232] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 11:04:25,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 11:04:25,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [73] imperfect sequences [] total 73 [2022-10-24 11:04:25,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315064591] [2022-10-24 11:04:25,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 11:04:25,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2022-10-24 11:04:25,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 11:04:25,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2022-10-24 11:04:25,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=226, Invalid=5030, Unknown=0, NotChecked=0, Total=5256 [2022-10-24 11:04:25,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:04:25,125 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 11:04:25,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 13.58904109589041) internal successors, (992), 73 states have internal predecessors, (992), 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 11:04:25,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:04:25,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-10-24 11:04:25,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 107 states. [2022-10-24 11:04:25,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:04:45,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:04:45,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-24 11:04:45,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-10-24 11:04:45,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-10-24 11:04:45,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-24 11:04:45,385 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 11:04:45,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 11:04:45,387 INFO L85 PathProgramCache]: Analyzing trace with hash 2103638985, now seen corresponding path program 3 times [2022-10-24 11:04:45,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 11:04:45,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274357264] [2022-10-24 11:04:45,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 11:04:45,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 11:04:46,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 11:04:54,383 INFO L134 CoverageAnalysis]: Checked inductivity of 24534 backedges. 10459 proven. 3401 refuted. 0 times theorem prover too weak. 10674 trivial. 0 not checked. [2022-10-24 11:04:54,384 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 11:04:54,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274357264] [2022-10-24 11:04:54,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274357264] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-24 11:04:54,384 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-24 11:04:54,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [68] total 68 [2022-10-24 11:04:54,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387126763] [2022-10-24 11:04:54,384 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-24 11:04:54,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2022-10-24 11:04:54,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 11:04:54,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2022-10-24 11:04:54,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=4359, Unknown=0, NotChecked=0, Total=4556 [2022-10-24 11:04:54,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:04:54,389 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 11:04:54,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 68 states have (on average 29.602941176470587) internal successors, (2013), 68 states have internal predecessors, (2013), 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 11:04:54,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:04:54,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-10-24 11:04:54,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2022-10-24 11:04:54,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 112 states. [2022-10-24 11:04:54,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:05:01,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:05:01,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-24 11:05:01,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-10-24 11:05:01,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-10-24 11:05:01,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-10-24 11:05:01,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-24 11:05:01,087 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 11:05:01,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 11:05:01,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1103549921, now seen corresponding path program 4 times [2022-10-24 11:05:01,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 11:05:01,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336140969] [2022-10-24 11:05:01,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 11:05:01,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 11:05:02,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 11:05:07,708 ERROR L253 erpolLogProxyWrapper]: Interpolant 4150 not inductive [2022-10-24 11:05:07,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-24 11:05:07,985 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: generated interpolants did not pass sanity check at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:233) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:879) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:803) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:352) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:192) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:284) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:165) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:327) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:229) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-10-24 11:05:07,989 INFO L158 Benchmark]: Toolchain (without parser) took 82641.93ms. Allocated memory was 190.8MB in the beginning and 7.4GB in the end (delta: 7.2GB). Free memory was 164.1MB in the beginning and 3.5GB in the end (delta: -3.4GB). Peak memory consumption was 4.3GB. Max. memory is 8.0GB. [2022-10-24 11:05:07,989 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.13ms. Allocated memory is still 190.8MB. Free memory is still 170.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-24 11:05:07,992 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.36ms. Allocated memory is still 190.8MB. Free memory was 164.1MB in the beginning and 161.4MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-10-24 11:05:07,992 INFO L158 Benchmark]: Boogie Preprocessor took 110.80ms. Allocated memory is still 190.8MB. Free memory was 161.4MB in the beginning and 155.7MB in the end (delta: 5.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2022-10-24 11:05:07,992 INFO L158 Benchmark]: RCFGBuilder took 1170.75ms. Allocated memory is still 190.8MB. Free memory was 155.7MB in the beginning and 106.7MB in the end (delta: 48.9MB). Peak memory consumption was 50.4MB. Max. memory is 8.0GB. [2022-10-24 11:05:07,993 INFO L158 Benchmark]: TraceAbstraction took 81302.28ms. Allocated memory was 190.8MB in the beginning and 7.4GB in the end (delta: 7.2GB). Free memory was 105.7MB in the beginning and 3.5GB in the end (delta: -3.4GB). Peak memory consumption was 4.3GB. Max. memory is 8.0GB. [2022-10-24 11:05:07,998 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.13ms. Allocated memory is still 190.8MB. Free memory is still 170.3MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 54.36ms. Allocated memory is still 190.8MB. Free memory was 164.1MB in the beginning and 161.4MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 110.80ms. Allocated memory is still 190.8MB. Free memory was 161.4MB in the beginning and 155.7MB in the end (delta: 5.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1170.75ms. Allocated memory is still 190.8MB. Free memory was 155.7MB in the beginning and 106.7MB in the end (delta: 48.9MB). Peak memory consumption was 50.4MB. Max. memory is 8.0GB. * TraceAbstraction took 81302.28ms. Allocated memory was 190.8MB in the beginning and 7.4GB in the end (delta: 7.2GB). Free memory was 105.7MB in the beginning and 3.5GB in the end (delta: -3.4GB). Peak memory consumption was 4.3GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: generated interpolants did not pass sanity check de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: generated interpolants did not pass sanity check: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:233) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-10-24 11:05:08,076 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2022-10-24 11:05:08,295 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...