/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION --traceabstraction.trace.refinement.strategy BADGER -s ../../../trunk/examples/settings/gemcutter/SleepMap-ConcreteSmt-VarAbsGlobalSyntactic.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk26/divinefifo_1w1r.line1382.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-e57bdd3-m [2022-10-24 15:26:14,217 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2022-10-24 15:26:14,296 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/SleepMap-ConcreteSmt-VarAbsGlobalSyntactic.epf [2022-10-24 15:26:14,324 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-24 15:26:14,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-24 15:26:14,325 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-24 15:26:14,325 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-24 15:26:14,326 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-24 15:26:14,326 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-24 15:26:14,328 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-24 15:26:14,328 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-24 15:26:14,328 INFO L138 SettingsManager]: * Use SBE=true [2022-10-24 15:26:14,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-24 15:26:14,328 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-24 15:26:14,329 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-24 15:26:14,329 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-24 15:26:14,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-24 15:26:14,329 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-24 15:26:14,329 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-24 15:26:14,329 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-24 15:26:14,329 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-24 15:26:14,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-24 15:26:14,330 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-24 15:26:14,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-24 15:26:14,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-24 15:26:14,330 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-24 15:26:14,330 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-24 15:26:14,330 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-24 15:26:14,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-24 15:26:14,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-24 15:26:14,331 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-24 15:26:14,331 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-24 15:26:14,331 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-24 15:26:14,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-24 15:26:14,331 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-24 15:26:14,331 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-24 15:26:14,331 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-24 15:26:14,331 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-24 15:26:14,332 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-24 15:26:14,332 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-24 15:26:14,332 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-24 15:26:14,332 INFO L138 SettingsManager]: * Number of independence relations to use for POR=2 [2022-10-24 15:26:14,332 INFO L138 SettingsManager]: * Independence relation used for POR in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> BADGER [2022-10-24 15:26:14,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-24 15:26:14,606 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-24 15:26:14,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-24 15:26:14,609 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-24 15:26:14,610 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-24 15:26:14,612 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk26/divinefifo_1w1r.line1382.bpl [2022-10-24 15:26:14,613 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk26/divinefifo_1w1r.line1382.bpl' [2022-10-24 15:26:14,671 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-24 15:26:14,672 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-10-24 15:26:14,673 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-24 15:26:14,673 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-24 15:26:14,673 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-24 15:26:14,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "divinefifo_1w1r.line1382.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 03:26:14" (1/1) ... [2022-10-24 15:26:14,703 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "divinefifo_1w1r.line1382.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 03:26:14" (1/1) ... [2022-10-24 15:26:14,722 INFO L138 Inliner]: procedures = 2, calls = 1, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-10-24 15:26:14,723 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-24 15:26:14,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-24 15:26:14,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-24 15:26:14,724 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-24 15:26:14,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "divinefifo_1w1r.line1382.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 03:26:14" (1/1) ... [2022-10-24 15:26:14,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "divinefifo_1w1r.line1382.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 03:26:14" (1/1) ... [2022-10-24 15:26:14,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "divinefifo_1w1r.line1382.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 03:26:14" (1/1) ... [2022-10-24 15:26:14,743 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "divinefifo_1w1r.line1382.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 03:26:14" (1/1) ... [2022-10-24 15:26:14,787 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "divinefifo_1w1r.line1382.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 03:26:14" (1/1) ... [2022-10-24 15:26:14,791 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "divinefifo_1w1r.line1382.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 03:26:14" (1/1) ... [2022-10-24 15:26:14,795 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "divinefifo_1w1r.line1382.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 03:26:14" (1/1) ... [2022-10-24 15:26:14,807 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-24 15:26:14,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-24 15:26:14,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-24 15:26:14,808 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-24 15:26:14,813 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "divinefifo_1w1r.line1382.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 03:26:14" (1/1) ... [2022-10-24 15:26:14,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-24 15:26:14,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 15:26:14,841 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-24 15:26:14,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-24 15:26:14,870 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2022-10-24 15:26:14,870 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2022-10-24 15:26:14,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-24 15:26:14,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-24 15:26:14,872 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-24 15:26:15,065 INFO L234 CfgBuilder]: Building ICFG [2022-10-24 15:26:15,066 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-24 15:26:15,948 INFO L275 CfgBuilder]: Performing block encoding [2022-10-24 15:26:15,975 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-24 15:26:15,975 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-24 15:26:15,977 INFO L202 PluginConnector]: Adding new model divinefifo_1w1r.line1382.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:26:15 BoogieIcfgContainer [2022-10-24 15:26:15,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-24 15:26:15,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-24 15:26:15,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-24 15:26:15,981 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-24 15:26:15,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo_1w1r.line1382.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 03:26:14" (1/2) ... [2022-10-24 15:26:15,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dffb71e and model type divinefifo_1w1r.line1382.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:26:15, skipping insertion in model container [2022-10-24 15:26:15,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo_1w1r.line1382.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:26:15" (2/2) ... [2022-10-24 15:26:15,983 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo_1w1r.line1382.bpl [2022-10-24 15:26:15,988 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-24 15:26:15,994 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-24 15:26:15,995 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-24 15:26:15,995 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-24 15:26:16,115 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-10-24 15:26:16,180 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-24 15:26:16,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-24 15:26:16,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 15:26:16,197 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-24 15:26:16,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-10-24 15:26:16,260 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 15:26:16,283 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2022-10-24 15:26:16,284 WARN L162 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2022-10-24 15:26:16,284 WARN L163 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2022-10-24 15:26:16,290 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-10-24 15:26:16,299 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;@7d41a458, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 15:26:16,300 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-24 15:26:16,836 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 15:26:16,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 15:26:16,840 INFO L85 PathProgramCache]: Analyzing trace with hash -359889531, now seen corresponding path program 1 times [2022-10-24 15:26:16,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 15:26:16,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553425074] [2022-10-24 15:26:16,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 15:26:16,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 15:26:17,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 15:26:17,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-24 15:26:17,234 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 15:26:17,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553425074] [2022-10-24 15:26:17,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553425074] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 15:26:17,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 15:26:17,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-24 15:26:17,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067921940] [2022-10-24 15:26:17,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 15:26:17,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-24 15:26:17,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 15:26:17,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-24 15:26:17,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-24 15:26:17,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 15:26:17,263 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 15:26:17,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 286.5) internal successors, (573), 2 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-24 15:26:17,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 15:26:17,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 15:26:17,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-24 15:26:17,486 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 15:26:17,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 15:26:17,487 INFO L85 PathProgramCache]: Analyzing trace with hash 758159030, now seen corresponding path program 1 times [2022-10-24 15:26:17,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 15:26:17,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618328466] [2022-10-24 15:26:17,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 15:26:17,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 15:26:17,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 15:26:17,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-24 15:26:17,950 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 15:26:17,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618328466] [2022-10-24 15:26:17,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618328466] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 15:26:17,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 15:26:17,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-24 15:26:17,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844174656] [2022-10-24 15:26:17,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 15:26:17,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-24 15:26:17,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 15:26:17,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-24 15:26:17,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-10-24 15:26:17,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 15:26:17,953 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 15:26:17,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 71.0) internal successors, (639), 10 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-24 15:26:17,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 15:26:17,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 15:26:19,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 15:26:19,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-24 15:26:19,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-24 15:26:19,101 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 15:26:19,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 15:26:19,102 INFO L85 PathProgramCache]: Analyzing trace with hash -984844000, now seen corresponding path program 1 times [2022-10-24 15:26:19,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 15:26:19,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258174330] [2022-10-24 15:26:19,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 15:26:19,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 15:26:19,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 15:26:19,336 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-24 15:26:19,336 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 15:26:19,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258174330] [2022-10-24 15:26:19,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258174330] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 15:26:19,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 15:26:19,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-24 15:26:19,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439525725] [2022-10-24 15:26:19,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 15:26:19,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-24 15:26:19,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 15:26:19,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-24 15:26:19,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-10-24 15:26:19,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 15:26:19,339 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 15:26:19,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 132.0) internal successors, (924), 8 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-24 15:26:19,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 15:26:19,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-10-24 15:26:19,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 15:26:31,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 15:26:31,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-24 15:26:31,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-24 15:26:31,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-24 15:26:31,540 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 15:26:31,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 15:26:31,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1010219634, now seen corresponding path program 1 times [2022-10-24 15:26:31,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 15:26:31,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162296057] [2022-10-24 15:26:31,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 15:26:31,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 15:26:37,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat