/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/thin002_power.oepc.line1107.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-10-04 14:40:04,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-04 14:40:04,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-04 14:40:04,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-04 14:40:04,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-04 14:40:04,190 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-04 14:40:04,193 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-04 14:40:04,195 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-04 14:40:04,196 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-04 14:40:04,200 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-04 14:40:04,200 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-04 14:40:04,201 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-04 14:40:04,201 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-04 14:40:04,203 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-04 14:40:04,204 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-04 14:40:04,206 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-04 14:40:04,207 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-04 14:40:04,207 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-04 14:40:04,209 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-04 14:40:04,210 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-04 14:40:04,211 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-04 14:40:04,212 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-04 14:40:04,214 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-04 14:40:04,215 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-04 14:40:04,220 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-04 14:40:04,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-04 14:40:04,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-04 14:40:04,227 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-04 14:40:04,228 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-04 14:40:04,255 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-04 14:40:04,255 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-04 14:40:04,255 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-04 14:40:04,255 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-04 14:40:04,256 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-04 14:40:04,256 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-04 14:40:04,256 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-04 14:40:04,256 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-04 14:40:04,257 INFO L138 SettingsManager]: * Use SBE=true [2022-10-04 14:40:04,257 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-04 14:40:04,257 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-04 14:40:04,257 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-04 14:40:04,257 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-04 14:40:04,258 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-04 14:40:04,258 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-04 14:40:04,258 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-04 14:40:04,258 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-04 14:40:04,258 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-04 14:40:04,258 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-04 14:40:04,258 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-04 14:40:04,258 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-04 14:40:04,258 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-04 14:40:04,258 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-04 14:40:04,259 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-04 14:40:04,259 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-04 14:40:04,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-04 14:40:04,259 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-04 14:40:04,260 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-04 14:40:04,260 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-04 14:40:04,260 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-04 14:40:04,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-04 14:40:04,260 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-04 14:40:04,260 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-04 14:40:04,260 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-04 14:40:04,260 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-04 14:40:04,260 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-04 14:40:04,260 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-04 14:40:04,260 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-04 14:40:04,261 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-04 14:40:04,418 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-04 14:40:04,434 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-04 14:40:04,436 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-04 14:40:04,436 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-04 14:40:04,437 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-04 14:40:04,438 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/thin002_power.oepc.line1107.bpl [2022-10-04 14:40:04,438 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/thin002_power.oepc.line1107.bpl' [2022-10-04 14:40:04,479 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-04 14:40:04,480 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-10-04 14:40:04,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-04 14:40:04,482 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-04 14:40:04,482 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-04 14:40:04,493 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "thin002_power.oepc.line1107.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:40:04" (1/1) ... [2022-10-04 14:40:04,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "thin002_power.oepc.line1107.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:40:04" (1/1) ... [2022-10-04 14:40:04,520 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "thin002_power.oepc.line1107.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:40:04" (1/1) ... [2022-10-04 14:40:04,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "thin002_power.oepc.line1107.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:40:04" (1/1) ... [2022-10-04 14:40:04,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "thin002_power.oepc.line1107.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:40:04" (1/1) ... [2022-10-04 14:40:04,544 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "thin002_power.oepc.line1107.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:40:04" (1/1) ... [2022-10-04 14:40:04,547 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "thin002_power.oepc.line1107.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:40:04" (1/1) ... [2022-10-04 14:40:04,552 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-04 14:40:04,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-04 14:40:04,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-04 14:40:04,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-04 14:40:04,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "thin002_power.oepc.line1107.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:40:04" (1/1) ... [2022-10-04 14:40:04,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-04 14:40:04,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 14:40:04,608 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) [2022-10-04 14:40:04,611 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 [2022-10-04 14:40:04,642 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-10-04 14:40:04,642 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-10-04 14:40:04,642 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-10-04 14:40:04,642 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-10-04 14:40:04,643 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-10-04 14:40:04,643 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-10-04 14:40:04,643 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-10-04 14:40:04,643 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-10-04 14:40:04,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-04 14:40:04,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-04 14:40:04,646 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-04 14:40:04,850 INFO L234 CfgBuilder]: Building ICFG [2022-10-04 14:40:04,852 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-04 14:40:05,336 INFO L275 CfgBuilder]: Performing block encoding [2022-10-04 14:40:05,348 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-04 14:40:05,348 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-04 14:40:05,350 INFO L202 PluginConnector]: Adding new model thin002_power.oepc.line1107.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 02:40:05 BoogieIcfgContainer [2022-10-04 14:40:05,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-04 14:40:05,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-04 14:40:05,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-04 14:40:05,355 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-04 14:40:05,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "thin002_power.oepc.line1107.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:40:04" (1/2) ... [2022-10-04 14:40:05,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f12a0e and model type thin002_power.oepc.line1107.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 02:40:05, skipping insertion in model container [2022-10-04 14:40:05,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "thin002_power.oepc.line1107.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 02:40:05" (2/2) ... [2022-10-04 14:40:05,357 INFO L112 eAbstractionObserver]: Analyzing ICFG thin002_power.oepc.line1107.bpl [2022-10-04 14:40:05,362 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-04 14:40:05,369 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-04 14:40:05,369 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-04 14:40:05,369 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-04 14:40:05,463 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-10-04 14:40:05,558 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>] [2022-10-04 14:40:05,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-04 14:40:05,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 14:40:05,573 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) [2022-10-04 14:40:05,615 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 [2022-10-04 14:40:05,629 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-04 14:40:05,638 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-10-04 14:40:05,645 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;@3c56ded0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-04 14:40:05,646 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-04 14:40:05,892 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 14:40:05,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 14:40:05,896 INFO L85 PathProgramCache]: Analyzing trace with hash 316222083, now seen corresponding path program 1 times [2022-10-04 14:40:05,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 14:40:05,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417684154] [2022-10-04 14:40:05,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 14:40:05,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 14:40:06,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 14:40:06,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 14:40:06,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 14:40:06,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417684154] [2022-10-04 14:40:06,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417684154] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 14:40:06,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 14:40:06,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-04 14:40:06,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493345081] [2022-10-04 14:40:06,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 14:40:06,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-04 14:40:06,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 14:40:06,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-04 14:40:06,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-04 14:40:06,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:40:06,397 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 14:40:06,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 30.333333333333332) internal successors, (182), 7 states have internal predecessors, (182), 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) [2022-10-04 14:40:06,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.