/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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_6.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-17 02:50:37,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-17 02:50:37,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-17 02:50:37,401 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-17 02:50:37,402 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-17 02:50:37,403 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-17 02:50:37,404 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-17 02:50:37,406 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-17 02:50:37,407 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-17 02:50:37,408 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-17 02:50:37,409 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-17 02:50:37,410 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-17 02:50:37,410 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-17 02:50:37,425 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-17 02:50:37,427 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-17 02:50:37,430 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-17 02:50:37,432 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-17 02:50:37,436 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-17 02:50:37,440 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-17 02:50:37,445 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-17 02:50:37,446 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-17 02:50:37,450 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-17 02:50:37,451 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-17 02:50:37,451 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-17 02:50:37,453 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-17 02:50:37,454 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-17 02:50:37,454 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-17 02:50:37,455 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-17 02:50:37,455 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-17 02:50:37,456 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-17 02:50:37,456 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-17 02:50:37,457 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-17 02:50:37,457 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-17 02:50:37,458 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-17 02:50:37,459 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-17 02:50:37,459 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-17 02:50:37,459 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-17 02:50:37,460 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-17 02:50:37,460 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-17 02:50:37,461 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-17 02:50:37,461 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-17 02:50:37,471 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf [2022-02-17 02:50:37,495 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-17 02:50:37,496 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-17 02:50:37,496 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-17 02:50:37,496 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-17 02:50:37,497 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-17 02:50:37,497 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-17 02:50:37,498 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-17 02:50:37,498 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-17 02:50:37,498 INFO L138 SettingsManager]: * Use SBE=true [2022-02-17 02:50:37,500 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-17 02:50:37,501 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-17 02:50:37,501 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-17 02:50:37,501 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-17 02:50:37,501 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-17 02:50:37,501 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-17 02:50:37,501 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-17 02:50:37,501 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-17 02:50:37,501 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-17 02:50:37,502 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-17 02:50:37,504 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-17 02:50:37,504 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-17 02:50:37,504 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-17 02:50:37,504 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-17 02:50:37,511 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-17 02:50:37,511 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-17 02:50:37,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-17 02:50:37,512 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-17 02:50:37,512 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-17 02:50:37,512 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-17 02:50:37,512 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-17 02:50:37,512 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-17 02:50:37,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-17 02:50:37,512 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-17 02:50:37,512 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-17 02:50:37,513 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-17 02:50:37,513 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-02-17 02:50:37,513 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-17 02:50:37,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-17 02:50:37,777 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-17 02:50:37,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-17 02:50:37,781 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-17 02:50:37,783 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-17 02:50:37,784 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_6.bpl [2022-02-17 02:50:37,785 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_6.bpl' [2022-02-17 02:50:37,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-17 02:50:37,803 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-17 02:50:37,805 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-17 02:50:37,806 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-17 02:50:37,806 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-17 02:50:37,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 02:50:37" (1/1) ... [2022-02-17 02:50:37,835 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 02:50:37" (1/1) ... [2022-02-17 02:50:37,842 INFO L137 Inliner]: procedures = 7, calls = 6, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-17 02:50:37,843 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-17 02:50:37,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-17 02:50:37,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-17 02:50:37,844 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-17 02:50:37,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 02:50:37" (1/1) ... [2022-02-17 02:50:37,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 02:50:37" (1/1) ... [2022-02-17 02:50:37,850 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 02:50:37" (1/1) ... [2022-02-17 02:50:37,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 02:50:37" (1/1) ... [2022-02-17 02:50:37,853 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 02:50:37" (1/1) ... [2022-02-17 02:50:37,854 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 02:50:37" (1/1) ... [2022-02-17 02:50:37,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 02:50:37" (1/1) ... [2022-02-17 02:50:37,855 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-17 02:50:37,856 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-17 02:50:37,856 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-17 02:50:37,856 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-17 02:50:37,857 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 02:50:37" (1/1) ... [2022-02-17 02:50:37,864 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-17 02:50:37,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-17 02:50:37,886 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) [2022-02-17 02:50:37,892 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 [2022-02-17 02:50:37,921 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2022-02-17 02:50:37,921 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2022-02-17 02:50:37,921 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2022-02-17 02:50:37,921 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2022-02-17 02:50:37,921 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2022-02-17 02:50:37,922 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2022-02-17 02:50:37,922 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2022-02-17 02:50:37,922 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2022-02-17 02:50:37,922 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2022-02-17 02:50:37,922 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2022-02-17 02:50:37,922 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2022-02-17 02:50:37,922 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2022-02-17 02:50:37,922 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2022-02-17 02:50:37,923 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2022-02-17 02:50:37,923 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2022-02-17 02:50:37,923 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-17 02:50:37,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-17 02:50:37,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-17 02:50:37,923 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2022-02-17 02:50:37,923 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2022-02-17 02:50:37,924 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2022-02-17 02:50:37,924 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-17 02:50:37,972 INFO L234 CfgBuilder]: Building ICFG [2022-02-17 02:50:37,973 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-17 02:50:38,067 INFO L275 CfgBuilder]: Performing block encoding [2022-02-17 02:50:38,073 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-17 02:50:38,073 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-17 02:50:38,075 INFO L202 PluginConnector]: Adding new model example_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 02:50:38 BoogieIcfgContainer [2022-02-17 02:50:38,075 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-17 02:50:38,079 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-17 02:50:38,079 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-17 02:50:38,082 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-17 02:50:38,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 02:50:37" (1/2) ... [2022-02-17 02:50:38,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a753518 and model type example_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 02:50:38, skipping insertion in model container [2022-02-17 02:50:38,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 02:50:38" (2/2) ... [2022-02-17 02:50:38,085 INFO L111 eAbstractionObserver]: Analyzing ICFG example_6.bpl [2022-02-17 02:50:38,094 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-17 02:50:38,094 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-17 02:50:38,094 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-17 02:50:38,094 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-17 02:50:38,153 INFO L148 ThreadInstanceAdder]: Constructed 36 joinOtherThreadTransitions. [2022-02-17 02:50:38,239 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-17 02:50:38,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-17 02:50:38,263 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) [2022-02-17 02:50:38,307 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 [2022-02-17 02:50:38,323 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-17 02:50:38,333 INFO L339 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, mLazyFiniteAutomaton=true, 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, mLoopAccelerationTechnique=FAST_UPR [2022-02-17 02:50:38,333 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-02-17 02:50:38,537 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 115 transitions and produced 116 states. [2022-02-17 02:50:38,540 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-02-17 02:50:38,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-17 02:50:38,550 INFO L85 PathProgramCache]: Analyzing trace with hash -935195033, now seen corresponding path program 1 times [2022-02-17 02:50:38,559 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-17 02:50:38,559 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139171425] [2022-02-17 02:50:38,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-17 02:50:38,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-17 02:50:38,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-17 02:50:38,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-17 02:50:38,699 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-17 02:50:38,699 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139171425] [2022-02-17 02:50:38,700 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139171425] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-17 02:50:38,700 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-17 02:50:38,701 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-17 02:50:38,702 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523830803] [2022-02-17 02:50:38,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-17 02:50:38,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-17 02:50:38,707 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-17 02:50:38,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-17 02:50:38,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-17 02:50:38,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-17 02:50:38,740 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-17 02:50:38,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2022-02-17 02:50:38,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-17 02:50:38,859 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 115 transitions and produced 116 states. [2022-02-17 02:50:38,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-17 02:50:38,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-17 02:50:38,862 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-02-17 02:50:38,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-17 02:50:38,865 INFO L85 PathProgramCache]: Analyzing trace with hash -18108083, now seen corresponding path program 1 times [2022-02-17 02:50:38,866 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-17 02:50:38,866 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917409246] [2022-02-17 02:50:38,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-17 02:50:38,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-17 02:50:38,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-17 02:50:38,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-17 02:50:38,904 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-17 02:50:38,904 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917409246] [2022-02-17 02:50:38,905 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917409246] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-17 02:50:38,905 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-17 02:50:38,905 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-17 02:50:38,905 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524812381] [2022-02-17 02:50:38,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-17 02:50:38,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-17 02:50:38,907 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-17 02:50:38,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-17 02:50:38,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-17 02:50:38,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-17 02:50:38,908 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-17 02:50:38,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2022-02-17 02:50:38,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-17 02:50:38,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-17 02:50:39,006 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 115 transitions and produced 116 states. [2022-02-17 02:50:39,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-17 02:50:39,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-17 02:50:39,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-17 02:50:39,007 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-02-17 02:50:39,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-17 02:50:39,010 INFO L85 PathProgramCache]: Analyzing trace with hash 840766447, now seen corresponding path program 1 times [2022-02-17 02:50:39,010 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-17 02:50:39,011 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434899112] [2022-02-17 02:50:39,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-17 02:50:39,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-17 02:50:39,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-17 02:50:39,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-17 02:50:39,067 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-17 02:50:39,067 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434899112] [2022-02-17 02:50:39,068 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434899112] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-17 02:50:39,068 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-17 02:50:39,068 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-17 02:50:39,068 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267490979] [2022-02-17 02:50:39,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-17 02:50:39,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-17 02:50:39,069 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-17 02:50:39,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-17 02:50:39,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-17 02:50:39,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-17 02:50:39,072 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-17 02:50:39,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2022-02-17 02:50:39,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-17 02:50:39,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-17 02:50:39,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-17 02:50:39,168 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 115 transitions and produced 116 states. [2022-02-17 02:50:39,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-17 02:50:39,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-17 02:50:39,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-17 02:50:39,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-17 02:50:39,170 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-02-17 02:50:39,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-17 02:50:39,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1729220557, now seen corresponding path program 1 times [2022-02-17 02:50:39,172 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-17 02:50:39,173 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327757847] [2022-02-17 02:50:39,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-17 02:50:39,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-17 02:50:39,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-17 02:50:39,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-17 02:50:39,244 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-17 02:50:39,244 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327757847] [2022-02-17 02:50:39,245 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327757847] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-17 02:50:39,246 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-17 02:50:39,246 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-17 02:50:39,248 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327987312] [2022-02-17 02:50:39,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-17 02:50:39,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-17 02:50:39,249 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-17 02:50:39,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-17 02:50:39,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-17 02:50:39,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-17 02:50:39,250 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-17 02:50:39,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2022-02-17 02:50:39,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-17 02:50:39,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-17 02:50:39,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-17 02:50:39,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-17 02:50:39,321 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 115 transitions and produced 116 states. [2022-02-17 02:50:39,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-17 02:50:39,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-17 02:50:39,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-17 02:50:39,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-17 02:50:39,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-17 02:50:39,323 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-02-17 02:50:39,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-17 02:50:39,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1730114287, now seen corresponding path program 1 times [2022-02-17 02:50:39,324 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-17 02:50:39,324 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95604535] [2022-02-17 02:50:39,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-17 02:50:39,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-17 02:50:39,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-17 02:50:39,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-17 02:50:39,760 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-17 02:50:39,760 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95604535] [2022-02-17 02:50:39,760 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95604535] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-17 02:50:39,760 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-17 02:50:39,761 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-17 02:50:39,761 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944024233] [2022-02-17 02:50:39,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-17 02:50:39,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-17 02:50:39,762 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-17 02:50:39,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-17 02:50:39,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-02-17 02:50:39,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-17 02:50:39,763 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-17 02:50:39,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 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) [2022-02-17 02:50:39,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-17 02:50:39,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-17 02:50:39,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-17 02:50:39,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-17 02:50:39,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.