/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION --traceabstraction.trace.refinement.strategy BADGER -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk25/divinefifo-bug_1w1r.line1086.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-e57bdd3-m [2022-10-24 10:42:37,777 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-24 10:42:37,778 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-24 10:42:37,797 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-24 10:42:37,804 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-24 10:42:37,805 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-24 10:42:37,806 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-24 10:42:37,807 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-24 10:42:37,807 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-24 10:42:37,808 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-24 10:42:37,809 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-24 10:42:37,810 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-24 10:42:37,811 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-24 10:42:37,812 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-24 10:42:37,828 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-24 10:42:37,829 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-24 10:42:37,832 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-24 10:42:37,840 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2022-10-24 10:42:37,856 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-24 10:42:37,857 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-24 10:42:37,857 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-24 10:42:37,857 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-24 10:42:37,858 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-24 10:42:37,858 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-24 10:42:37,858 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-24 10:42:37,858 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-24 10:42:37,859 INFO L138 SettingsManager]: * Use SBE=true [2022-10-24 10:42:37,859 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-24 10:42:37,859 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-24 10:42:37,859 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-24 10:42:37,859 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-24 10:42:37,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-24 10:42:37,860 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-24 10:42:37,860 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-24 10:42:37,860 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-24 10:42:37,860 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-24 10:42:37,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-24 10:42:37,860 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-24 10:42:37,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-24 10:42:37,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-24 10:42:37,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-24 10:42:37,861 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-24 10:42:37,861 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-24 10:42:37,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-24 10:42:37,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-24 10:42:37,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-24 10:42:37,862 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-24 10:42:37,862 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-24 10:42:37,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-24 10:42:37,862 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-24 10:42:37,862 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-24 10:42:37,862 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-24 10:42:37,862 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-24 10:42:37,863 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> BADGER [2022-10-24 10:42:38,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-24 10:42:38,191 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-24 10:42:38,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-24 10:42:38,193 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-24 10:42:38,195 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-24 10:42:38,196 INFO L432 ainManager$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.line1086.bpl [2022-10-24 10:42:38,196 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk25/divinefifo-bug_1w1r.line1086.bpl' [2022-10-24 10:42:38,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-24 10:42:38,284 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-10-24 10:42:38,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-24 10:42:38,285 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-24 10:42:38,285 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-24 10:42:38,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "divinefifo-bug_1w1r.line1086.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 10:42:38" (1/1) ... [2022-10-24 10:42:38,324 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "divinefifo-bug_1w1r.line1086.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 10:42:38" (1/1) ... [2022-10-24 10:42:38,337 INFO L138 Inliner]: procedures = 2, calls = 1, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-10-24 10:42:38,338 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-24 10:42:38,339 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-24 10:42:38,339 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-24 10:42:38,339 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-24 10:42:38,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1086.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 10:42:38" (1/1) ... [2022-10-24 10:42:38,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1086.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 10:42:38" (1/1) ... [2022-10-24 10:42:38,360 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1086.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 10:42:38" (1/1) ... [2022-10-24 10:42:38,360 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1086.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 10:42:38" (1/1) ... [2022-10-24 10:42:38,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1086.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 10:42:38" (1/1) ... [2022-10-24 10:42:38,417 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1086.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 10:42:38" (1/1) ... [2022-10-24 10:42:38,421 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1086.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 10:42:38" (1/1) ... [2022-10-24 10:42:38,429 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-24 10:42:38,430 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-24 10:42:38,430 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-24 10:42:38,430 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-24 10:42:38,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "divinefifo-bug_1w1r.line1086.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 10:42:38" (1/1) ... [2022-10-24 10:42:38,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-24 10:42:38,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 10:42:38,472 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 10:42:38,487 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 10:42:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2022-10-24 10:42:38,512 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2022-10-24 10:42:38,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-24 10:42:38,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-24 10:42:38,514 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 10:42:38,710 INFO L234 CfgBuilder]: Building ICFG [2022-10-24 10:42:38,711 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-24 10:42:39,540 INFO L275 CfgBuilder]: Performing block encoding [2022-10-24 10:42:39,554 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-24 10:42:39,554 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-24 10:42:39,557 INFO L202 PluginConnector]: Adding new model divinefifo-bug_1w1r.line1086.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:42:39 BoogieIcfgContainer [2022-10-24 10:42:39,557 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-24 10:42:39,559 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-24 10:42:39,559 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-24 10:42:39,561 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-24 10:42:39,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo-bug_1w1r.line1086.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 10:42:38" (1/2) ... [2022-10-24 10:42:39,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bcdd86b and model type divinefifo-bug_1w1r.line1086.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:42:39, skipping insertion in model container [2022-10-24 10:42:39,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo-bug_1w1r.line1086.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:42:39" (2/2) ... [2022-10-24 10:42:39,563 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo-bug_1w1r.line1086.bpl [2022-10-24 10:42:39,568 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-24 10:42:39,574 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-24 10:42:39,575 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-24 10:42:39,575 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-24 10:42:39,654 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-10-24 10:42:39,712 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 10:42:39,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-24 10:42:39,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 10:42:39,715 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 10:42:39,735 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 10:42:39,747 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-24 10:42:39,760 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-10-24 10:42:39,769 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;@32739dea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 10:42:39,769 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-24 10:42:39,864 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 10:42:39,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 10:42:39,868 INFO L85 PathProgramCache]: Analyzing trace with hash -442373824, now seen corresponding path program 1 times [2022-10-24 10:42:39,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 10:42:39,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962511244] [2022-10-24 10:42:39,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 10:42:39,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 10:42:40,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 10:42:40,278 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 10:42:40,279 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 10:42:40,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962511244] [2022-10-24 10:42:40,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962511244] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 10:42:40,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 10:42:40,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-24 10:42:40,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913492415] [2022-10-24 10:42:40,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 10:42:40,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-24 10:42:40,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 10:42:40,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-24 10:42:40,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-24 10:42:40,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 10:42:40,352 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 10:42:40,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 167.0) internal successors, (334), 2 states have internal predecessors, (334), 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 10:42:40,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 10:42:40,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 10:42:40,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-24 10:42:40,480 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 10:42:40,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 10:42:40,481 INFO L85 PathProgramCache]: Analyzing trace with hash -961630541, now seen corresponding path program 1 times [2022-10-24 10:42:40,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 10:42:40,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944827923] [2022-10-24 10:42:40,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 10:42:40,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 10:42:40,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 10:42:42,622 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 10:42:42,623 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 10:42:42,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944827923] [2022-10-24 10:42:42,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944827923] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 10:42:42,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 10:42:42,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [50] imperfect sequences [] total 50 [2022-10-24 10:42:42,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68871475] [2022-10-24 10:42:42,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 10:42:42,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-10-24 10:42:42,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 10:42:42,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-10-24 10:42:42,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=2375, Unknown=0, NotChecked=0, Total=2550 [2022-10-24 10:42:42,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 10:42:42,628 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 10:42:42,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 50 states have (on average 8.04) internal successors, (402), 51 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 10:42:42,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 10:42:42,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 10:42:54,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 10:42:54,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-10-24 10:42:54,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-24 10:42:54,318 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 10:42:54,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 10:42:54,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1317851972, now seen corresponding path program 1 times [2022-10-24 10:42:54,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 10:42:54,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491661799] [2022-10-24 10:42:54,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 10:42:54,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 10:42:56,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 10:43:02,884 INFO L134 CoverageAnalysis]: Checked inductivity of 13416 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 13248 trivial. 0 not checked. [2022-10-24 10:43:02,885 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 10:43:02,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491661799] [2022-10-24 10:43:02,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491661799] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 10:43:02,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 10:43:02,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [76] imperfect sequences [] total 76 [2022-10-24 10:43:02,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946389277] [2022-10-24 10:43:02,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 10:43:02,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2022-10-24 10:43:02,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 10:43:02,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2022-10-24 10:43:02,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=250, Invalid=5450, Unknown=0, NotChecked=0, Total=5700 [2022-10-24 10:43:02,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 10:43:02,895 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 10:43:02,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 76 states have (on average 15.078947368421053) internal successors, (1146), 76 states have internal predecessors, (1146), 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 10:43:02,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 10:43:02,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2022-10-24 10:43:02,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 10:43:30,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 10:43:30,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-10-24 10:43:30,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2022-10-24 10:43:30,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-24 10:43:30,142 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 10:43:30,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 10:43:30,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1771319899, now seen corresponding path program 1 times [2022-10-24 10:43:30,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 10:43:30,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034518962] [2022-10-24 10:43:30,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 10:43:30,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 10:43:31,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 10:43:37,104 INFO L134 CoverageAnalysis]: Checked inductivity of 19750 backedges. 181 proven. 264 refuted. 0 times theorem prover too weak. 19305 trivial. 0 not checked. [2022-10-24 10:43:37,105 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 10:43:37,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034518962] [2022-10-24 10:43:37,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034518962] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-24 10:43:37,106 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-24 10:43:37,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2022-10-24 10:43:37,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100301448] [2022-10-24 10:43:37,109 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-24 10:43:37,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-10-24 10:43:37,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 10:43:37,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-10-24 10:43:37,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=682, Unknown=0, NotChecked=0, Total=756 [2022-10-24 10:43:37,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 10:43:37,116 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 10:43:37,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 44.370370370370374) internal successors, (1198), 28 states have internal predecessors, (1198), 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 10:43:37,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 10:43:37,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2022-10-24 10:43:37,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 107 states. [2022-10-24 10:43:37,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 10:44:00,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 10:44:00,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-10-24 10:44:00,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-10-24 10:44:00,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-10-24 10:44:00,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-24 10:44:00,626 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 10:44:00,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 10:44:00,628 INFO L85 PathProgramCache]: Analyzing trace with hash 334222178, now seen corresponding path program 1 times [2022-10-24 10:44:00,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 10:44:00,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917502289] [2022-10-24 10:44:00,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 10:44:00,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 10:44:14,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat