/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION --traceabstraction.trace.refinement.strategy BADGER -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk09/safe009_power.oepc.line1233.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-e57bdd3-m [2022-10-20 22:07:50,018 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2022-10-20 22:07:50,105 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-20 22:07:50,149 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-20 22:07:50,149 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-20 22:07:50,150 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-20 22:07:50,150 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-20 22:07:50,151 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-20 22:07:50,151 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-20 22:07:50,153 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-20 22:07:50,153 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-20 22:07:50,153 INFO L138 SettingsManager]: * Use SBE=true [2022-10-20 22:07:50,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-20 22:07:50,154 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-20 22:07:50,154 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-20 22:07:50,154 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-20 22:07:50,154 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-20 22:07:50,154 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-20 22:07:50,154 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-20 22:07:50,154 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-20 22:07:50,155 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-20 22:07:50,155 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-20 22:07:50,155 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-20 22:07:50,155 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-20 22:07:50,155 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-20 22:07:50,155 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-20 22:07:50,155 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-20 22:07:50,155 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-20 22:07:50,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-20 22:07:50,156 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-20 22:07:50,156 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-20 22:07:50,156 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-20 22:07:50,156 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-20 22:07:50,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-20 22:07:50,156 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-20 22:07:50,156 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-20 22:07:50,157 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-20 22:07:50,157 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-20 22:07:50,157 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-20 22:07:50,157 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-20 22:07:50,157 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-20 22:07:50,157 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> BADGER [2022-10-20 22:07:50,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-20 22:07:50,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-20 22:07:50,469 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-20 22:07:50,470 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-20 22:07:50,475 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-20 22:07:50,476 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk09/safe009_power.oepc.line1233.bpl [2022-10-20 22:07:50,476 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk09/safe009_power.oepc.line1233.bpl' [2022-10-20 22:07:50,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-20 22:07:50,549 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-10-20 22:07:50,550 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-20 22:07:50,550 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-20 22:07:50,550 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-20 22:07:50,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "safe009_power.oepc.line1233.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 10:07:50" (1/1) ... [2022-10-20 22:07:50,585 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "safe009_power.oepc.line1233.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 10:07:50" (1/1) ... [2022-10-20 22:07:50,602 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-10-20 22:07:50,603 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-20 22:07:50,604 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-20 22:07:50,604 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-20 22:07:50,604 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-20 22:07:50,610 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "safe009_power.oepc.line1233.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 10:07:50" (1/1) ... [2022-10-20 22:07:50,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "safe009_power.oepc.line1233.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 10:07:50" (1/1) ... [2022-10-20 22:07:50,624 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "safe009_power.oepc.line1233.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 10:07:50" (1/1) ... [2022-10-20 22:07:50,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "safe009_power.oepc.line1233.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 10:07:50" (1/1) ... [2022-10-20 22:07:50,648 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "safe009_power.oepc.line1233.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 10:07:50" (1/1) ... [2022-10-20 22:07:50,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "safe009_power.oepc.line1233.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 10:07:50" (1/1) ... [2022-10-20 22:07:50,665 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "safe009_power.oepc.line1233.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 10:07:50" (1/1) ... [2022-10-20 22:07:50,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-20 22:07:50,681 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-20 22:07:50,681 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-20 22:07:50,682 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-20 22:07:50,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "safe009_power.oepc.line1233.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 10:07:50" (1/1) ... [2022-10-20 22:07:50,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-20 22:07:50,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-20 22:07:50,722 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) [2022-10-20 22:07:50,761 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 [2022-10-20 22:07:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-10-20 22:07:50,793 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-10-20 22:07:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-10-20 22:07:50,793 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-10-20 22:07:50,794 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-10-20 22:07:50,794 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-10-20 22:07:50,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-20 22:07:50,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-20 22:07:50,796 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-20 22:07:50,951 INFO L234 CfgBuilder]: Building ICFG [2022-10-20 22:07:50,952 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-20 22:07:51,798 INFO L275 CfgBuilder]: Performing block encoding [2022-10-20 22:07:51,820 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-20 22:07:51,821 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-20 22:07:51,824 INFO L202 PluginConnector]: Adding new model safe009_power.oepc.line1233.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 10:07:51 BoogieIcfgContainer [2022-10-20 22:07:51,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-20 22:07:51,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-20 22:07:51,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-20 22:07:51,828 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-20 22:07:51,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "safe009_power.oepc.line1233.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 10:07:50" (1/2) ... [2022-10-20 22:07:51,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@383b0238 and model type safe009_power.oepc.line1233.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 10:07:51, skipping insertion in model container [2022-10-20 22:07:51,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "safe009_power.oepc.line1233.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 10:07:51" (2/2) ... [2022-10-20 22:07:51,831 INFO L112 eAbstractionObserver]: Analyzing ICFG safe009_power.oepc.line1233.bpl [2022-10-20 22:07:51,836 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-20 22:07:51,842 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-20 22:07:51,842 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-20 22:07:51,843 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-20 22:07:52,007 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-10-20 22:07:52,067 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>] [2022-10-20 22:07:52,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-20 22:07:52,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-20 22:07:52,081 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) [2022-10-20 22:07:52,085 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 [2022-10-20 22:07:52,134 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-20 22:07:52,178 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-10-20 22:07:52,188 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;@67ac7772, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-20 22:07:52,188 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-20 22:07:52,496 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-20 22:07:52,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-20 22:07:52,501 INFO L85 PathProgramCache]: Analyzing trace with hash -602881649, now seen corresponding path program 1 times [2022-10-20 22:07:52,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-20 22:07:52,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975721230] [2022-10-20 22:07:52,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-20 22:07:52,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-20 22:07:52,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-20 22:07:52,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-20 22:07:52,843 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-20 22:07:52,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975721230] [2022-10-20 22:07:52,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975721230] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-20 22:07:52,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-20 22:07:52,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-20 22:07:52,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556027682] [2022-10-20 22:07:52,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-20 22:07:52,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-20 22:07:52,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-20 22:07:52,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-20 22:07:52,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-20 22:07:52,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 22:07:52,881 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-20 22:07:52,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 110.5) internal successors, (221), 2 states have internal predecessors, (221), 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) [2022-10-20 22:07:52,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-20 22:09:43,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 22:09:43,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-20 22:09:43,598 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-20 22:09:43,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-20 22:09:43,599 INFO L85 PathProgramCache]: Analyzing trace with hash 177760493, now seen corresponding path program 1 times [2022-10-20 22:09:43,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-20 22:09:43,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614159731] [2022-10-20 22:09:43,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-20 22:09:43,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-20 22:09:43,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-20 22:09:43,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-20 22:09:43,906 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-20 22:09:43,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614159731] [2022-10-20 22:09:43,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614159731] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-20 22:09:43,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-20 22:09:43,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-20 22:09:43,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280124903] [2022-10-20 22:09:43,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-20 22:09:43,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-20 22:09:43,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-20 22:09:43,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-20 22:09:43,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-20 22:09:43,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 22:09:43,912 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-20 22:09:43,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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) [2022-10-20 22:09:43,913 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-20 22:09:43,913 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-20 22:10:44,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 22:10:44,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-20 22:10:44,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-20 22:10:44,454 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-20 22:10:44,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-20 22:10:44,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1634815585, now seen corresponding path program 1 times [2022-10-20 22:10:44,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-20 22:10:44,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391844430] [2022-10-20 22:10:44,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-20 22:10:44,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-20 22:10:44,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-20 22:10:44,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-20 22:10:44,684 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-20 22:10:44,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391844430] [2022-10-20 22:10:44,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391844430] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-20 22:10:44,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-20 22:10:44,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-20 22:10:44,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24204672] [2022-10-20 22:10:44,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-20 22:10:44,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-20 22:10:44,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-20 22:10:44,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-20 22:10:44,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-20 22:10:44,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 22:10:44,686 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-20 22:10:44,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 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) [2022-10-20 22:10:44,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-20 22:10:44,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-20 22:10:44,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-20 22:11:52,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 22:11:52,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-20 22:11:52,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-20 22:11:52,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-20 22:11:52,171 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-20 22:11:52,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-20 22:11:52,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1726576286, now seen corresponding path program 1 times [2022-10-20 22:11:52,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-20 22:11:52,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116381844] [2022-10-20 22:11:52,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-20 22:11:52,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-20 22:11:52,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-20 22:11:52,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-20 22:11:52,312 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-20 22:11:52,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116381844] [2022-10-20 22:11:52,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116381844] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-20 22:11:52,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-20 22:11:52,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-20 22:11:52,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218314926] [2022-10-20 22:11:52,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-20 22:11:52,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-20 22:11:52,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-20 22:11:52,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-20 22:11:52,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-20 22:11:52,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 22:11:52,357 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-20 22:11:52,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 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) [2022-10-20 22:11:52,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-20 22:11:52,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-20 22:11:52,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-20 22:11:52,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-20 22:12:59,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 22:12:59,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-20 22:12:59,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-20 22:12:59,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-20 22:12:59,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-20 22:12:59,984 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-20 22:12:59,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-20 22:12:59,985 INFO L85 PathProgramCache]: Analyzing trace with hash 38171861, now seen corresponding path program 1 times [2022-10-20 22:12:59,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-20 22:12:59,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204718296] [2022-10-20 22:12:59,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-20 22:12:59,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-20 22:13:00,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-20 22:13:00,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-20 22:13:00,748 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-20 22:13:00,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204718296] [2022-10-20 22:13:00,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204718296] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-20 22:13:00,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-20 22:13:00,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-20 22:13:00,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715297485] [2022-10-20 22:13:00,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-20 22:13:00,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-20 22:13:00,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-20 22:13:00,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-20 22:13:00,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-20 22:13:00,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 22:13:00,751 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-20 22:13:00,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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) [2022-10-20 22:13:00,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-20 22:13:00,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-20 22:13:00,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-20 22:13:00,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-20 22:13:00,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-20 22:13:56,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 22:13:56,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-20 22:13:56,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-20 22:13:56,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-20 22:13:56,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-20 22:13:56,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-20 22:13:56,563 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-20 22:13:56,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-20 22:13:56,564 INFO L85 PathProgramCache]: Analyzing trace with hash -670752645, now seen corresponding path program 1 times [2022-10-20 22:13:56,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-20 22:13:56,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730966461] [2022-10-20 22:13:56,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-20 22:13:56,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-20 22:13:56,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-20 22:13:56,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-20 22:13:56,672 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-20 22:13:56,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730966461] [2022-10-20 22:13:56,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730966461] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-20 22:13:56,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-20 22:13:56,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-20 22:13:56,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453890245] [2022-10-20 22:13:56,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-20 22:13:56,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-20 22:13:56,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-20 22:13:56,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-20 22:13:56,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-20 22:13:56,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 22:13:56,675 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-20 22:13:56,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 72.0) internal successors, (288), 4 states have internal predecessors, (288), 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) [2022-10-20 22:13:56,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-20 22:13:56,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-20 22:13:56,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-20 22:13:56,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-20 22:13:56,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-20 22:13:56,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-20 22:14:51,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 22:14:51,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-20 22:14:51,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-20 22:14:51,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-20 22:14:51,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-20 22:14:51,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-20 22:14:51,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-20 22:14:51,364 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-20 22:14:51,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-20 22:14:51,365 INFO L85 PathProgramCache]: Analyzing trace with hash -457340893, now seen corresponding path program 1 times [2022-10-20 22:14:51,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-20 22:14:51,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732002257] [2022-10-20 22:14:51,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-20 22:14:51,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-20 22:14:51,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-20 22:14:51,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-20 22:14:51,609 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-20 22:14:51,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732002257] [2022-10-20 22:14:51,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732002257] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-20 22:14:51,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-20 22:14:51,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-20 22:14:51,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811786552] [2022-10-20 22:14:51,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-20 22:14:51,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-20 22:14:51,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-20 22:14:51,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-20 22:14:51,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-10-20 22:14:51,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 22:14:51,615 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-20 22:14:51,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 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) [2022-10-20 22:14:51,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-20 22:14:51,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-20 22:14:51,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-20 22:14:51,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-20 22:14:51,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-20 22:14:51,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-20 22:14:51,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.