/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/chunk25/divinefifo-bug_1w1r.line1456.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-e57bdd3-m [2022-10-24 11:49:25,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-24 11:49:25,351 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-24 11:49:25,380 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-24 11:49:25,398 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-24 11:49:25,400 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-24 11:49:25,401 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-24 11:49:25,402 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-24 11:49:25,402 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-24 11:49:25,403 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-24 11:49:25,404 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-24 11:49:25,409 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-24 11:49:25,410 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-24 11:49:25,411 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-24 11:49:25,412 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-24 11:49:25,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-24 11:49:25,418 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-24 11:49:25,423 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-24 11:49:25,424 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-24 11:49:25,424 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-24 11:49:25,425 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-24 11:49:25,453 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-24 11:49:25,453 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-24 11:49:25,453 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-24 11:49:25,453 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-24 11:49:25,456 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-24 11:49:25,456 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-24 11:49:25,457 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-24 11:49:25,457 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-24 11:49:25,458 INFO L138 SettingsManager]: * Use SBE=true [2022-10-24 11:49:25,458 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-24 11:49:25,458 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-24 11:49:25,458 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-24 11:49:25,458 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-24 11:49:25,458 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-24 11:49:25,459 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-24 11:49:25,459 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-24 11:49:25,459 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-24 11:49:25,459 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-24 11:49:25,459 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-24 11:49:25,459 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-24 11:49:25,459 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-24 11:49:25,459 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-24 11:49:25,459 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-24 11:49:25,459 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-24 11:49:25,459 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-24 11:49:25,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-24 11:49:25,460 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-24 11:49:25,460 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-24 11:49:25,460 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-24 11:49:25,460 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-24 11:49:25,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-24 11:49:25,460 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-24 11:49:25,460 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-24 11:49:25,460 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-24 11:49:25,460 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-24 11:49:25,461 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-24 11:49:25,461 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-24 11:49:25,461 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-24 11:49:25,461 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> BADGER [2022-10-24 11:49:25,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-24 11:49:25,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-24 11:49:25,743 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-24 11:49:25,743 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-24 11:49:25,746 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-24 11:49:25,747 INFO L432 ainManager$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.line1456.bpl [2022-10-24 11:49:25,748 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk25/divinefifo-bug_1w1r.line1456.bpl' [2022-10-24 11:49:25,835 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-24 11:49:25,836 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-10-24 11:49:25,837 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-24 11:49:25,837 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-24 11:49:25,837 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-24 11:49:25,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "divinefifo-bug_1w1r.line1456.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 11:49:25" (1/1) ... [2022-10-24 11:49:25,870 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "divinefifo-bug_1w1r.line1456.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 11:49:25" (1/1) ... [2022-10-24 11:49:25,876 INFO L138 Inliner]: procedures = 2, calls = 1, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-10-24 11:49:25,877 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-24 11:49:25,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-24 11:49:25,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-24 11:49:25,882 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-24 11:49:25,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1456.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 11:49:25" (1/1) ... [2022-10-24 11:49:25,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1456.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 11:49:25" (1/1) ... [2022-10-24 11:49:25,901 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1456.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 11:49:25" (1/1) ... [2022-10-24 11:49:25,901 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1456.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 11:49:25" (1/1) ... [2022-10-24 11:49:25,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1456.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 11:49:25" (1/1) ... [2022-10-24 11:49:25,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1456.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 11:49:25" (1/1) ... [2022-10-24 11:49:25,951 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1456.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 11:49:25" (1/1) ... [2022-10-24 11:49:25,959 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-24 11:49:25,960 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-24 11:49:25,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-24 11:49:25,960 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-24 11:49:25,961 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "divinefifo-bug_1w1r.line1456.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 11:49:25" (1/1) ... [2022-10-24 11:49:25,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-24 11:49:25,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 11:49:26,012 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 11:49:26,044 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 11:49:26,062 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2022-10-24 11:49:26,062 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2022-10-24 11:49:26,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-24 11:49:26,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-24 11:49:26,063 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 11:49:26,199 INFO L234 CfgBuilder]: Building ICFG [2022-10-24 11:49:26,201 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-24 11:49:27,084 INFO L275 CfgBuilder]: Performing block encoding [2022-10-24 11:49:27,106 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-24 11:49:27,106 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-24 11:49:27,111 INFO L202 PluginConnector]: Adding new model divinefifo-bug_1w1r.line1456.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:49:27 BoogieIcfgContainer [2022-10-24 11:49:27,111 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-24 11:49:27,113 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-24 11:49:27,113 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-24 11:49:27,115 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-24 11:49:27,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo-bug_1w1r.line1456.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 11:49:25" (1/2) ... [2022-10-24 11:49:27,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6445efe1 and model type divinefifo-bug_1w1r.line1456.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:49:27, skipping insertion in model container [2022-10-24 11:49:27,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo-bug_1w1r.line1456.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:49:27" (2/2) ... [2022-10-24 11:49:27,117 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo-bug_1w1r.line1456.bpl [2022-10-24 11:49:27,125 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-24 11:49:27,130 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-24 11:49:27,130 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-24 11:49:27,132 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-24 11:49:27,260 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-10-24 11:49:27,319 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-24 11:49:27,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-24 11:49:27,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 11:49:27,331 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 11:49:27,332 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 11:49:27,363 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-24 11:49:27,374 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-10-24 11:49:27,383 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;@314f2c9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 11:49:27,383 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-24 11:49:27,741 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 11:49:27,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 11:49:27,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1399763923, now seen corresponding path program 1 times [2022-10-24 11:49:27,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 11:49:27,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43080059] [2022-10-24 11:49:27,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 11:49:27,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 11:49:27,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 11:49:28,193 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 11:49:28,194 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 11:49:28,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43080059] [2022-10-24 11:49:28,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43080059] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 11:49:28,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 11:49:28,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-24 11:49:28,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876743875] [2022-10-24 11:49:28,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 11:49:28,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-24 11:49:28,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 11:49:28,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-24 11:49:28,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-24 11:49:28,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:49:28,223 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 11:49:28,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 316.0) internal successors, (632), 2 states have internal predecessors, (632), 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 11:49:28,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:49:28,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:49:28,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-24 11:49:28,415 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 11:49:28,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 11:49:28,415 INFO L85 PathProgramCache]: Analyzing trace with hash -438201893, now seen corresponding path program 1 times [2022-10-24 11:49:28,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 11:49:28,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000540721] [2022-10-24 11:49:28,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 11:49:28,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 11:49:28,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 11:49:28,956 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 11:49:28,956 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 11:49:28,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000540721] [2022-10-24 11:49:28,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000540721] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 11:49:28,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 11:49:28,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-10-24 11:49:28,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314451353] [2022-10-24 11:49:28,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 11:49:28,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-24 11:49:28,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 11:49:28,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-24 11:49:28,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-10-24 11:49:28,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:49:28,959 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 11:49:28,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 63.45454545454545) internal successors, (698), 12 states have internal predecessors, (698), 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 11:49:28,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:49:28,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:49:30,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:49:30,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-24 11:49:30,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-24 11:49:30,186 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 11:49:30,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 11:49:30,187 INFO L85 PathProgramCache]: Analyzing trace with hash -530769369, now seen corresponding path program 1 times [2022-10-24 11:49:30,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 11:49:30,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023762241] [2022-10-24 11:49:30,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 11:49:30,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 11:49:30,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 11:49:30,517 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 184 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-24 11:49:30,517 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 11:49:30,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023762241] [2022-10-24 11:49:30,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023762241] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 11:49:30,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 11:49:30,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-24 11:49:30,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063807302] [2022-10-24 11:49:30,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 11:49:30,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-24 11:49:30,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 11:49:30,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-24 11:49:30,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-10-24 11:49:30,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:49:30,520 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 11:49:30,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 111.66666666666667) internal successors, (1005), 10 states have internal predecessors, (1005), 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 11:49:30,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:49:30,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-10-24 11:49:30,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:49:31,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:49:31,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-24 11:49:31,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-24 11:49:31,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-24 11:49:31,566 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 11:49:31,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 11:49:31,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1873487461, now seen corresponding path program 1 times [2022-10-24 11:49:31,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 11:49:31,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972599917] [2022-10-24 11:49:31,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 11:49:31,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 11:49:32,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 11:49:37,519 INFO L134 CoverageAnalysis]: Checked inductivity of 10706 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10706 trivial. 0 not checked. [2022-10-24 11:49:37,521 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 11:49:37,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972599917] [2022-10-24 11:49:37,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972599917] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 11:49:37,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 11:49:37,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [68] imperfect sequences [] total 68 [2022-10-24 11:49:37,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020998603] [2022-10-24 11:49:37,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 11:49:37,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2022-10-24 11:49:37,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 11:49:37,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2022-10-24 11:49:37,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=4340, Unknown=0, NotChecked=0, Total=4556 [2022-10-24 11:49:37,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:49:37,532 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 11:49:37,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 68 states have (on average 14.441176470588236) internal successors, (982), 68 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 11:49:37,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:49:37,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-10-24 11:49:37,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-10-24 11:49:37,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:49:56,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:49:56,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-24 11:49:56,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-24 11:49:56,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-10-24 11:49:56,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-24 11:49:56,669 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 11:49:56,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 11:49:56,671 INFO L85 PathProgramCache]: Analyzing trace with hash 703505697, now seen corresponding path program 2 times [2022-10-24 11:49:56,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 11:49:56,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318311604] [2022-10-24 11:49:56,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 11:49:56,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 11:49:57,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 11:50:01,024 INFO L134 CoverageAnalysis]: Checked inductivity of 13356 backedges. 8073 proven. 593 refuted. 0 times theorem prover too weak. 4690 trivial. 0 not checked. [2022-10-24 11:50:01,024 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 11:50:01,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318311604] [2022-10-24 11:50:01,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318311604] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-24 11:50:01,025 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-24 11:50:01,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46] total 46 [2022-10-24 11:50:01,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545737991] [2022-10-24 11:50:01,026 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-24 11:50:01,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-10-24 11:50:01,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 11:50:01,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-10-24 11:50:01,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=1947, Unknown=0, NotChecked=0, Total=2070 [2022-10-24 11:50:01,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:50:01,037 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 11:50:01,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 48.04347826086956) internal successors, (2210), 46 states have internal predecessors, (2210), 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 11:50:01,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:50:01,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-10-24 11:50:01,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-10-24 11:50:01,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. [2022-10-24 11:50:01,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:50:30,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:50:30,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-24 11:50:30,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-24 11:50:30,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-10-24 11:50:30,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 242 states. [2022-10-24 11:50:30,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-24 11:50:30,668 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 11:50:30,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 11:50:30,671 INFO L85 PathProgramCache]: Analyzing trace with hash 955551253, now seen corresponding path program 1 times [2022-10-24 11:50:30,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 11:50:30,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037977592] [2022-10-24 11:50:30,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 11:50:30,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 11:50:49,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat