/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-VarAbsGlobalSyntactic.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk27/chl-nzb-file-subst.wvr.line1553.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-e57bdd3-m [2022-10-24 17:11:55,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-24 17:11:55,335 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-24 17:11:55,367 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-24 17:11:55,387 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-24 17:11:55,389 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-24 17:11:55,390 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-24 17:11:55,391 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-24 17:11:55,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-24 17:11:55,392 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-24 17:11:55,394 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-24 17:11:55,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-24 17:11:55,401 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-24 17:11:55,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-24 17:11:55,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-24 17:11:55,405 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-24 17:11:55,409 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-24 17:11:55,416 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-24 17:11:55,417 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-24 17:11:55,417 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-24 17:11:55,421 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-24 17:11:55,444 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-24 17:11:55,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-24 17:11:55,445 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-24 17:11:55,445 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-24 17:11:55,446 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-24 17:11:55,446 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-24 17:11:55,447 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-24 17:11:55,448 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-24 17:11:55,448 INFO L138 SettingsManager]: * Use SBE=true [2022-10-24 17:11:55,448 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-24 17:11:55,449 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-24 17:11:55,449 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-24 17:11:55,449 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-24 17:11:55,449 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-24 17:11:55,449 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-24 17:11:55,449 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-24 17:11:55,449 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-24 17:11:55,449 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-24 17:11:55,449 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-24 17:11:55,449 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-24 17:11:55,449 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-24 17:11:55,450 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-24 17:11:55,450 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-24 17:11:55,450 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-24 17:11:55,450 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-24 17:11:55,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-24 17:11:55,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-24 17:11:55,450 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-24 17:11:55,450 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-24 17:11:55,450 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-24 17:11:55,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-24 17:11:55,450 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-24 17:11:55,451 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-24 17:11:55,451 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-24 17:11:55,451 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-24 17:11:55,451 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-24 17:11:55,451 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-24 17:11:55,451 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-24 17:11:55,451 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> BADGER [2022-10-24 17:11:55,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-24 17:11:55,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-24 17:11:55,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-24 17:11:55,742 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-24 17:11:55,743 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-24 17:11:55,744 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk27/chl-nzb-file-subst.wvr.line1553.bpl [2022-10-24 17:11:55,744 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk27/chl-nzb-file-subst.wvr.line1553.bpl' [2022-10-24 17:11:55,789 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-24 17:11:55,790 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-10-24 17:11:55,791 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-24 17:11:55,791 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-24 17:11:55,791 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-24 17:11:55,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "chl-nzb-file-subst.wvr.line1553.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 05:11:55" (1/1) ... [2022-10-24 17:11:55,813 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "chl-nzb-file-subst.wvr.line1553.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 05:11:55" (1/1) ... [2022-10-24 17:11:55,819 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-10-24 17:11:55,820 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-24 17:11:55,822 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-24 17:11:55,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-24 17:11:55,823 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-24 17:11:55,828 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "chl-nzb-file-subst.wvr.line1553.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 05:11:55" (1/1) ... [2022-10-24 17:11:55,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "chl-nzb-file-subst.wvr.line1553.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 05:11:55" (1/1) ... [2022-10-24 17:11:55,834 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "chl-nzb-file-subst.wvr.line1553.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 05:11:55" (1/1) ... [2022-10-24 17:11:55,835 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "chl-nzb-file-subst.wvr.line1553.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 05:11:55" (1/1) ... [2022-10-24 17:11:55,863 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "chl-nzb-file-subst.wvr.line1553.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 05:11:55" (1/1) ... [2022-10-24 17:11:55,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "chl-nzb-file-subst.wvr.line1553.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 05:11:55" (1/1) ... [2022-10-24 17:11:55,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "chl-nzb-file-subst.wvr.line1553.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 05:11:55" (1/1) ... [2022-10-24 17:11:55,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-24 17:11:55,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-24 17:11:55,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-24 17:11:55,890 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-24 17:11:55,904 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "chl-nzb-file-subst.wvr.line1553.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 05:11:55" (1/1) ... [2022-10-24 17:11:55,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-24 17:11:55,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 17:11:55,947 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 17:11:55,956 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 17:11:55,990 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-10-24 17:11:55,990 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-10-24 17:11:55,990 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-10-24 17:11:55,991 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-10-24 17:11:55,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-24 17:11:55,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-24 17:11:55,991 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-10-24 17:11:55,992 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-10-24 17:11:55,994 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 17:11:56,120 INFO L234 CfgBuilder]: Building ICFG [2022-10-24 17:11:56,136 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-24 17:11:57,034 INFO L275 CfgBuilder]: Performing block encoding [2022-10-24 17:11:57,055 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-24 17:11:57,056 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-10-24 17:11:57,058 INFO L202 PluginConnector]: Adding new model chl-nzb-file-subst.wvr.line1553.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 05:11:57 BoogieIcfgContainer [2022-10-24 17:11:57,058 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-24 17:11:57,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-24 17:11:57,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-24 17:11:57,062 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-24 17:11:57,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "chl-nzb-file-subst.wvr.line1553.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 05:11:55" (1/2) ... [2022-10-24 17:11:57,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a1f8b22 and model type chl-nzb-file-subst.wvr.line1553.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 05:11:57, skipping insertion in model container [2022-10-24 17:11:57,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "chl-nzb-file-subst.wvr.line1553.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 05:11:57" (2/2) ... [2022-10-24 17:11:57,064 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-subst.wvr.line1553.bpl [2022-10-24 17:11:57,069 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-24 17:11:57,076 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-24 17:11:57,076 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-24 17:11:57,076 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-24 17:11:57,201 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-10-24 17:11:57,242 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-24 17:11:57,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-24 17:11:57,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 17:11:57,244 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 17:11:57,245 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 17:11:57,279 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-24 17:11:57,290 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-10-24 17:11:57,301 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;@57e10d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 17:11:57,301 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-24 17:11:57,593 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 17:11:57,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 17:11:57,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1153280476, now seen corresponding path program 1 times [2022-10-24 17:11:57,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 17:11:57,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140273815] [2022-10-24 17:11:57,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 17:11:57,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 17:11:57,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 17:11:57,990 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 17:11:57,990 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 17:11:57,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140273815] [2022-10-24 17:11:57,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140273815] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 17:11:57,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 17:11:57,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-24 17:11:57,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898122767] [2022-10-24 17:11:57,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 17:11:58,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-24 17:11:58,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 17:11:58,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-24 17:11:58,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-24 17:11:58,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:11:58,045 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 17:11:58,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 179.5) internal successors, (359), 2 states have internal predecessors, (359), 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 17:11:58,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:12:07,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:12:07,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-24 17:12:07,525 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 17:12:07,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 17:12:07,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1633889865, now seen corresponding path program 1 times [2022-10-24 17:12:07,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 17:12:07,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775729147] [2022-10-24 17:12:07,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 17:12:07,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 17:12:07,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 17:12:07,668 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 17:12:07,668 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 17:12:07,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775729147] [2022-10-24 17:12:07,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775729147] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 17:12:07,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 17:12:07,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-24 17:12:07,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026797856] [2022-10-24 17:12:07,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 17:12:07,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-24 17:12:07,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 17:12:07,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-24 17:12:07,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-24 17:12:07,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:12:07,673 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 17:12:07,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.0) internal successors, (350), 5 states have internal predecessors, (350), 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 17:12:07,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:12:07,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:12:13,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:12:13,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-24 17:12:13,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-24 17:12:13,089 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 17:12:13,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 17:12:13,090 INFO L85 PathProgramCache]: Analyzing trace with hash -741064795, now seen corresponding path program 1 times [2022-10-24 17:12:13,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 17:12:13,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887349729] [2022-10-24 17:12:13,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 17:12:13,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 17:12:13,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 17:12:13,299 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-24 17:12:13,299 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 17:12:13,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887349729] [2022-10-24 17:12:13,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887349729] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-24 17:12:13,300 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-24 17:12:13,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2022-10-24 17:12:13,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058033590] [2022-10-24 17:12:13,300 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-24 17:12:13,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-24 17:12:13,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 17:12:13,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-24 17:12:13,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-24 17:12:13,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:12:13,302 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 17:12:13,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 55.57142857142857) internal successors, (389), 7 states have internal predecessors, (389), 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 17:12:13,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:12:13,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-24 17:12:13,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:12:17,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:12:17,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-24 17:12:17,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-24 17:12:17,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-24 17:12:17,945 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 17:12:17,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 17:12:17,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1799998857, now seen corresponding path program 2 times [2022-10-24 17:12:17,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 17:12:17,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921751406] [2022-10-24 17:12:17,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 17:12:17,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 17:12:18,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 17:12:18,087 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-24 17:12:18,087 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 17:12:18,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921751406] [2022-10-24 17:12:18,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921751406] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-24 17:12:18,087 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-24 17:12:18,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2022-10-24 17:12:18,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866427193] [2022-10-24 17:12:18,091 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-24 17:12:18,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-24 17:12:18,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 17:12:18,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-24 17:12:18,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-10-24 17:12:18,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:12:18,100 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 17:12:18,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 44.666666666666664) internal successors, (402), 9 states have internal predecessors, (402), 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 17:12:18,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:12:18,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-24 17:12:18,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-24 17:12:18,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:12:23,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:12:23,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-24 17:12:23,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-24 17:12:23,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-24 17:12:23,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-24 17:12:23,182 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 17:12:23,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 17:12:23,183 INFO L85 PathProgramCache]: Analyzing trace with hash 188499045, now seen corresponding path program 3 times [2022-10-24 17:12:23,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 17:12:23,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161734662] [2022-10-24 17:12:23,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 17:12:23,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 17:12:23,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 17:12:23,361 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-10-24 17:12:23,361 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 17:12:23,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161734662] [2022-10-24 17:12:23,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161734662] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-24 17:12:23,362 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-24 17:12:23,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2022-10-24 17:12:23,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070297215] [2022-10-24 17:12:23,362 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-24 17:12:23,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-24 17:12:23,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 17:12:23,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-24 17:12:23,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-10-24 17:12:23,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:12:23,364 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 17:12:23,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 37.72727272727273) internal successors, (415), 11 states have internal predecessors, (415), 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 17:12:23,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:12:23,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-24 17:12:23,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-24 17:12:23,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-10-24 17:12:23,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:12:28,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:12:28,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-24 17:12:28,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-24 17:12:28,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-24 17:12:28,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-24 17:12:28,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-24 17:12:28,722 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 17:12:28,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 17:12:28,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1037579063, now seen corresponding path program 4 times [2022-10-24 17:12:28,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 17:12:28,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052642142] [2022-10-24 17:12:28,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 17:12:28,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 17:12:28,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 17:12:28,875 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2022-10-24 17:12:28,876 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 17:12:28,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052642142] [2022-10-24 17:12:28,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052642142] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-24 17:12:28,876 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-24 17:12:28,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2022-10-24 17:12:28,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686629033] [2022-10-24 17:12:28,876 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-24 17:12:28,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-24 17:12:28,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 17:12:28,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-24 17:12:28,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-10-24 17:12:28,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:12:28,878 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 17:12:28,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 32.92307692307692) internal successors, (428), 13 states have internal predecessors, (428), 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 17:12:28,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:12:28,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-24 17:12:28,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-24 17:12:28,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-10-24 17:12:28,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-10-24 17:12:28,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:12:34,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:12:34,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-24 17:12:34,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-24 17:12:34,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-24 17:12:34,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-24 17:12:34,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-24 17:12:34,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-24 17:12:34,619 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 17:12:34,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 17:12:34,620 INFO L85 PathProgramCache]: Analyzing trace with hash -418846427, now seen corresponding path program 5 times [2022-10-24 17:12:34,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 17:12:34,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604591015] [2022-10-24 17:12:34,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 17:12:34,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 17:12:34,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 17:12:34,825 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2022-10-24 17:12:34,826 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 17:12:34,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604591015] [2022-10-24 17:12:34,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604591015] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 17:12:34,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 17:12:34,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-24 17:12:34,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559018815] [2022-10-24 17:12:34,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 17:12:34,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-24 17:12:34,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 17:12:34,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-24 17:12:34,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-24 17:12:34,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:12:34,828 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 17:12:34,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 55.57142857142857) internal successors, (389), 8 states have internal predecessors, (389), 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 17:12:34,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:12:34,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-24 17:12:34,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-24 17:12:34,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-10-24 17:12:34,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-10-24 17:12:34,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-10-24 17:12:34,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.