/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy BADGER --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP -s ../../../trunk/examples/settings/gemcutter/SleepMap-ConcreteSmt-VarAbsGlobalSyntactic.epf --traceabstraction.coinflip.probability.value 90 --traceabstraction.coinflip.random.seed 13 --traceabstraction.coinflip.budget.determination.mode PURE -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2023/min-max-sample-with_locks.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-e57bdd3-m [2022-10-10 15:01:28,729 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2022-10-10 15:01:28,829 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/SleepMap-ConcreteSmt-VarAbsGlobalSyntactic.epf [2022-10-10 15:01:28,863 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-10 15:01:28,864 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-10 15:01:28,864 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-10 15:01:28,864 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-10 15:01:28,866 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-10 15:01:28,866 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-10 15:01:28,868 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-10 15:01:28,868 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-10 15:01:28,868 INFO L138 SettingsManager]: * Use SBE=true [2022-10-10 15:01:28,868 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-10 15:01:28,869 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-10 15:01:28,869 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-10 15:01:28,869 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-10 15:01:28,870 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-10 15:01:28,870 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-10 15:01:28,870 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-10 15:01:28,870 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-10 15:01:28,870 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-10 15:01:28,871 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-10 15:01:28,871 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-10 15:01:28,871 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-10 15:01:28,871 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-10 15:01:28,871 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-10 15:01:28,871 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-10 15:01:28,872 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-10 15:01:28,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-10 15:01:28,872 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-10 15:01:28,872 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-10 15:01:28,872 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-10 15:01:28,873 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-10 15:01:28,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-10 15:01:28,873 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-10 15:01:28,873 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-10 15:01:28,874 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-10 15:01:28,874 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-10 15:01:28,874 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-10 15:01:28,874 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-10 15:01:28,874 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-10 15:01:28,874 INFO L138 SettingsManager]: * Number of independence relations to use for POR=2 [2022-10-10 15:01:28,875 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> BADGER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Coinflip probability value -> 90 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Coinflip random seed -> 13 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Coinflip budget determination mode -> PURE [2022-10-10 15:01:29,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-10 15:01:29,226 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-10 15:01:29,229 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-10 15:01:29,229 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-10 15:01:29,231 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-10 15:01:29,232 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/min-max-sample-with_locks.bpl [2022-10-10 15:01:29,232 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/min-max-sample-with_locks.bpl' [2022-10-10 15:01:29,272 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-10 15:01:29,273 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-10-10 15:01:29,274 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-10 15:01:29,274 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-10 15:01:29,274 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-10 15:01:29,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-max-sample-with_locks.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:01:29" (1/1) ... [2022-10-10 15:01:29,294 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-max-sample-with_locks.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:01:29" (1/1) ... [2022-10-10 15:01:29,312 INFO L138 Inliner]: procedures = 8, calls = 11, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 37 [2022-10-10 15:01:29,314 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-10 15:01:29,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-10 15:01:29,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-10 15:01:29,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-10 15:01:29,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-max-sample-with_locks.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:01:29" (1/1) ... [2022-10-10 15:01:29,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-max-sample-with_locks.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:01:29" (1/1) ... [2022-10-10 15:01:29,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-max-sample-with_locks.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:01:29" (1/1) ... [2022-10-10 15:01:29,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-max-sample-with_locks.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:01:29" (1/1) ... [2022-10-10 15:01:29,329 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-max-sample-with_locks.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:01:29" (1/1) ... [2022-10-10 15:01:29,335 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-max-sample-with_locks.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:01:29" (1/1) ... [2022-10-10 15:01:29,336 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-max-sample-with_locks.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:01:29" (1/1) ... [2022-10-10 15:01:29,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-10 15:01:29,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-10 15:01:29,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-10 15:01:29,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-10 15:01:29,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-max-sample-with_locks.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:01:29" (1/1) ... [2022-10-10 15:01:29,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-10 15:01:29,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-10 15:01:29,381 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) [2022-10-10 15:01:29,387 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 [2022-10-10 15:01:29,421 INFO L124 BoogieDeclarations]: Specification and implementation of procedure computeMax given in one single declaration [2022-10-10 15:01:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure computeMax [2022-10-10 15:01:29,421 INFO L138 BoogieDeclarations]: Found implementation of procedure computeMax [2022-10-10 15:01:29,421 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-10-10 15:01:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-10 15:01:29,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-10 15:01:29,422 INFO L124 BoogieDeclarations]: Specification and implementation of procedure sample given in one single declaration [2022-10-10 15:01:29,422 INFO L130 BoogieDeclarations]: Found specification of procedure sample [2022-10-10 15:01:29,422 INFO L138 BoogieDeclarations]: Found implementation of procedure sample [2022-10-10 15:01:29,422 INFO L124 BoogieDeclarations]: Specification and implementation of procedure computeMin given in one single declaration [2022-10-10 15:01:29,422 INFO L130 BoogieDeclarations]: Found specification of procedure computeMin [2022-10-10 15:01:29,422 INFO L138 BoogieDeclarations]: Found implementation of procedure computeMin [2022-10-10 15:01:29,423 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-10 15:01:29,465 INFO L234 CfgBuilder]: Building ICFG [2022-10-10 15:01:29,467 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-10 15:01:29,640 INFO L275 CfgBuilder]: Performing block encoding [2022-10-10 15:01:29,661 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-10 15:01:29,662 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-10 15:01:29,680 INFO L202 PluginConnector]: Adding new model min-max-sample-with_locks.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:01:29 BoogieIcfgContainer [2022-10-10 15:01:29,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-10 15:01:29,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-10 15:01:29,683 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-10 15:01:29,685 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-10 15:01:29,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-sample-with_locks.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:01:29" (1/2) ... [2022-10-10 15:01:29,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53bc0a02 and model type min-max-sample-with_locks.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 03:01:29, skipping insertion in model container [2022-10-10 15:01:29,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-sample-with_locks.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:01:29" (2/2) ... [2022-10-10 15:01:29,688 INFO L112 eAbstractionObserver]: Analyzing ICFG min-max-sample-with_locks.bpl [2022-10-10 15:01:29,695 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-10 15:01:29,703 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-10 15:01:29,703 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-10 15:01:29,703 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-10 15:01:29,741 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-10-10 15:01:29,801 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-10 15:01:29,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-10 15:01:29,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-10 15:01:29,804 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) [2022-10-10 15:01:29,806 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 [2022-10-10 15:01:29,836 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-10 15:01:29,870 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2022-10-10 15:01:29,870 WARN L162 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2022-10-10 15:01:29,870 WARN L163 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2022-10-10 15:01:29,883 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-10-10 15:01:29,895 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;@711c097f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-10 15:01:29,895 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-10 15:01:30,175 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-10 15:01:30,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-10 15:01:30,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1667341239, now seen corresponding path program 1 times [2022-10-10 15:01:30,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-10 15:01:30,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496504629] [2022-10-10 15:01:30,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-10 15:01:30,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-10 15:01:30,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-10 15:01:30,781 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-10 15:01:30,782 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-10 15:01:30,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496504629] [2022-10-10 15:01:30,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496504629] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-10 15:01:30,783 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-10 15:01:30,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2022-10-10 15:01:30,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603805789] [2022-10-10 15:01:30,795 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-10 15:01:30,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-10 15:01:30,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-10 15:01:30,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-10 15:01:30,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-10 15:01:30,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-10 15:01:30,853 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-10 15:01:30,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 9 states have internal predecessors, (73), 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) [2022-10-10 15:01:30,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-10 15:01:37,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-10 15:01:37,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-10 15:01:37,046 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-10 15:01:37,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-10 15:01:37,047 INFO L85 PathProgramCache]: Analyzing trace with hash 94269538, now seen corresponding path program 1 times [2022-10-10 15:01:37,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-10 15:01:37,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788428868] [2022-10-10 15:01:37,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-10 15:01:37,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-10 15:01:37,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-10 15:01:37,109 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2022-10-10 15:01:37,110 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-10 15:01:37,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788428868] [2022-10-10 15:01:37,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788428868] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-10 15:01:37,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-10 15:01:37,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-10 15:01:37,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964280294] [2022-10-10 15:01:37,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-10 15:01:37,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-10 15:01:37,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-10 15:01:37,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-10 15:01:37,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-10 15:01:37,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-10 15:01:37,115 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-10 15:01:37,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2022-10-10 15:01:37,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-10-10 15:01:37,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-10 15:01:40,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-10 15:01:40,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-10 15:01:40,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-10 15:01:40,968 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-10 15:01:40,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-10 15:01:40,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1308477171, now seen corresponding path program 2 times [2022-10-10 15:01:40,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-10 15:01:40,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466802993] [2022-10-10 15:01:40,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-10 15:01:40,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-10 15:01:40,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-10 15:01:41,087 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 3 proven. 55 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-10 15:01:41,087 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-10 15:01:41,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466802993] [2022-10-10 15:01:41,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466802993] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-10 15:01:41,088 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-10 15:01:41,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2022-10-10 15:01:41,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356520510] [2022-10-10 15:01:41,088 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-10 15:01:41,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-10 15:01:41,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-10 15:01:41,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-10 15:01:41,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-10-10 15:01:41,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-10 15:01:41,090 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-10 15:01:41,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 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) [2022-10-10 15:01:41,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-10-10 15:01:41,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-10 15:01:41,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-10 15:01:52,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-10 15:01:52,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-10 15:01:52,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-10 15:01:52,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-10 15:01:52,521 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-10 15:01:52,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-10 15:01:52,522 INFO L85 PathProgramCache]: Analyzing trace with hash 237950214, now seen corresponding path program 2 times [2022-10-10 15:01:52,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-10 15:01:52,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196909873] [2022-10-10 15:01:52,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-10 15:01:52,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-10 15:01:52,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-10 15:01:52,777 INFO L134 CoverageAnalysis]: Checked inductivity of 545 backedges. 110 proven. 318 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-10-10 15:01:52,778 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-10 15:01:52,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196909873] [2022-10-10 15:01:52,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196909873] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-10 15:01:52,778 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-10 15:01:52,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2022-10-10 15:01:52,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487414862] [2022-10-10 15:01:52,779 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-10 15:01:52,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-10 15:01:52,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-10 15:01:52,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-10 15:01:52,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-10-10 15:01:52,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-10 15:01:52,781 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-10 15:01:52,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 11 states have internal predecessors, (115), 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) [2022-10-10 15:01:52,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-10-10 15:01:52,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-10 15:01:52,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-10 15:01:52,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-10 15:02:30,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-10 15:02:30,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-10 15:02:30,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-10 15:02:30,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-10 15:02:30,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-10 15:02:30,539 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-10 15:02:30,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-10 15:02:30,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1431294776, now seen corresponding path program 3 times [2022-10-10 15:02:30,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-10 15:02:30,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939037148] [2022-10-10 15:02:30,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-10 15:02:30,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-10 15:02:30,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-10 15:02:30,637 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 298 proven. 0 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2022-10-10 15:02:30,638 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-10 15:02:30,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939037148] [2022-10-10 15:02:30,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939037148] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-10 15:02:30,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-10 15:02:30,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-10 15:02:30,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425722313] [2022-10-10 15:02:30,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-10 15:02:30,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-10 15:02:30,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-10 15:02:30,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-10 15:02:30,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-10 15:02:30,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-10 15:02:30,641 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-10 15:02:30,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2022-10-10 15:02:30,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-10-10 15:02:30,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-10 15:02:30,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-10 15:02:30,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-10 15:02:30,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-10 15:02:52,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-10 15:02:52,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-10 15:02:52,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-10 15:02:52,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-10 15:02:52,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-10 15:02:52,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-10 15:02:52,873 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-10 15:02:52,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-10 15:02:52,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1993168426, now seen corresponding path program 4 times [2022-10-10 15:02:52,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-10 15:02:52,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592602611] [2022-10-10 15:02:52,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-10 15:02:52,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-10 15:02:52,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-10 15:02:53,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1341 backedges. 250 proven. 915 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-10-10 15:02:53,089 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-10 15:02:53,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592602611] [2022-10-10 15:02:53,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592602611] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-10 15:02:53,090 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-10 15:02:53,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2022-10-10 15:02:53,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905815287] [2022-10-10 15:02:53,091 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-10 15:02:53,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-10 15:02:53,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-10 15:02:53,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-10 15:02:53,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-10-10 15:02:53,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-10 15:02:53,095 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-10 15:02:53,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.333333333333334) internal successors, (172), 12 states have internal predecessors, (172), 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) [2022-10-10 15:02:53,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-10-10 15:02:53,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-10 15:02:53,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-10 15:02:53,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-10 15:02:53,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-10 15:02:53,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-10 15:03:18,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-10 15:03:18,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-10 15:03:18,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-10 15:03:18,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-10 15:03:18,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-10 15:03:18,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-10 15:03:18,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-10 15:03:18,359 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-10 15:03:18,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-10 15:03:18,360 INFO L85 PathProgramCache]: Analyzing trace with hash 886221412, now seen corresponding path program 1 times [2022-10-10 15:03:18,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-10 15:03:18,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030571817] [2022-10-10 15:03:18,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-10 15:03:18,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-10 15:03:18,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-10 15:03:18,409 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 50 proven. 9 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-10 15:03:18,409 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-10 15:03:18,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030571817] [2022-10-10 15:03:18,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030571817] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-10 15:03:18,413 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-10 15:03:18,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2022-10-10 15:03:18,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728402301] [2022-10-10 15:03:18,414 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-10 15:03:18,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-10 15:03:18,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-10 15:03:18,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-10 15:03:18,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-10 15:03:18,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-10 15:03:18,416 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-10 15:03:18,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 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) [2022-10-10 15:03:18,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-10-10 15:03:18,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-10 15:03:18,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-10 15:03:18,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-10 15:03:18,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-10 15:03:18,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-10-10 15:03:18,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.