/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-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-inc-dec.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-19 11:03:28,354 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-19 11:03:28,361 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-19 11:03:28,398 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-19 11:03:28,399 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-19 11:03:28,407 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-19 11:03:28,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-19 11:03:28,415 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-19 11:03:28,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-19 11:03:28,421 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-19 11:03:28,422 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-19 11:03:28,423 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-19 11:03:28,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-19 11:03:28,425 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-19 11:03:28,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-19 11:03:28,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-19 11:03:28,428 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-19 11:03:28,428 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-19 11:03:28,432 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-19 11:03:28,437 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-19 11:03:28,438 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-19 11:03:28,439 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-19 11:03:28,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-19 11:03:28,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-19 11:03:28,447 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-19 11:03:28,455 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-19 11:03:28,456 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-19 11:03:28,456 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-19 11:03:28,457 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-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf [2022-02-19 11:03:28,494 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-19 11:03:28,494 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-19 11:03:28,494 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-19 11:03:28,494 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-19 11:03:28,495 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-19 11:03:28,495 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-19 11:03:28,495 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-19 11:03:28,496 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-19 11:03:28,496 INFO L138 SettingsManager]: * Use SBE=true [2022-02-19 11:03:28,496 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-19 11:03:28,496 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-19 11:03:28,496 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-19 11:03:28,496 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-19 11:03:28,496 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-19 11:03:28,496 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-19 11:03:28,497 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-19 11:03:28,497 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-19 11:03:28,497 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-19 11:03:28,497 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-19 11:03:28,497 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-19 11:03:28,497 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-19 11:03:28,497 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-19 11:03:28,497 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-19 11:03:28,498 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-19 11:03:28,498 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-19 11:03:28,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 11:03:28,498 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-19 11:03:28,498 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-19 11:03:28,498 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-19 11:03:28,498 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-19 11:03:28,498 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-19 11:03:28,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-19 11:03:28,499 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-19 11:03:28,499 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-19 11:03:28,499 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-19 11:03:28,500 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-19 11:03:28,501 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-02-19 11:03:28,501 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-02-19 11:03:28,501 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-19 11:03:28,705 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-19 11:03:28,732 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-19 11:03:28,734 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-19 11:03:28,735 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-19 11:03:28,736 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-19 11:03:28,737 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-inc-dec.wvr.bpl [2022-02-19 11:03:28,738 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-inc-dec.wvr.bpl' [2022-02-19 11:03:28,768 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-19 11:03:28,769 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-19 11:03:28,770 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-19 11:03:28,770 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-19 11:03:28,770 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-19 11:03:28,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:03:28" (1/1) ... [2022-02-19 11:03:28,784 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:03:28" (1/1) ... [2022-02-19 11:03:28,789 INFO L137 Inliner]: procedures = 6, calls = 5, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-19 11:03:28,790 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-19 11:03:28,792 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-19 11:03:28,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-19 11:03:28,792 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-19 11:03:28,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:03:28" (1/1) ... [2022-02-19 11:03:28,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:03:28" (1/1) ... [2022-02-19 11:03:28,800 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:03:28" (1/1) ... [2022-02-19 11:03:28,800 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:03:28" (1/1) ... [2022-02-19 11:03:28,803 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:03:28" (1/1) ... [2022-02-19 11:03:28,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:03:28" (1/1) ... [2022-02-19 11:03:28,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:03:28" (1/1) ... [2022-02-19 11:03:28,812 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-19 11:03:28,813 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-19 11:03:28,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-19 11:03:28,813 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-19 11:03:28,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:03:28" (1/1) ... [2022-02-19 11:03:28,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 11:03:28,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:03:28,848 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) [2022-02-19 11:03:28,860 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 [2022-02-19 11:03:28,881 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-19 11:03:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-19 11:03:28,882 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-19 11:03:28,882 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-19 11:03:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-19 11:03:28,882 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-19 11:03:28,883 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-19 11:03:28,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-19 11:03:28,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-19 11:03:28,883 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-19 11:03:28,883 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-19 11:03:28,884 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-19 11:03:28,884 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-02-19 11:03:28,884 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-02-19 11:03:28,885 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-02-19 11:03:28,885 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2022-02-19 11:03:28,885 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-02-19 11:03:28,885 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-02-19 11:03:28,886 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-19 11:03:28,921 INFO L234 CfgBuilder]: Building ICFG [2022-02-19 11:03:28,922 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-19 11:03:29,091 INFO L275 CfgBuilder]: Performing block encoding [2022-02-19 11:03:29,105 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-19 11:03:29,105 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-19 11:03:29,107 INFO L202 PluginConnector]: Adding new model min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 11:03:29 BoogieIcfgContainer [2022-02-19 11:03:29,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-19 11:03:29,108 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-19 11:03:29,108 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-19 11:03:29,115 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-19 11:03:29,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:03:28" (1/2) ... [2022-02-19 11:03:29,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@507fc8df and model type min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 11:03:29, skipping insertion in model container [2022-02-19 11:03:29,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 11:03:29" (2/2) ... [2022-02-19 11:03:29,122 INFO L111 eAbstractionObserver]: Analyzing ICFG min-max-inc-dec.wvr.bpl [2022-02-19 11:03:29,126 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-19 11:03:29,126 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-19 11:03:29,127 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-19 11:03:29,127 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-19 11:03:29,175 INFO L148 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-02-19 11:03:29,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-19 11:03:29,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:03:29,211 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) [2022-02-19 11:03:29,259 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 [2022-02-19 11:03:29,290 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-19 11:03:29,300 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, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=false [2022-02-19 11:03:29,323 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-02-19 11:03:29,800 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 408 transitions and produced 354 states. [2022-02-19 11:03:29,802 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-02-19 11:03:29,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 11:03:29,811 INFO L85 PathProgramCache]: Analyzing trace with hash 470151531, now seen corresponding path program 1 times [2022-02-19 11:03:29,818 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 11:03:29,819 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175606555] [2022-02-19 11:03:29,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:03:29,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 11:03:30,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:03:30,342 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 44 proven. 57 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-02-19 11:03:30,343 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 11:03:30,343 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175606555] [2022-02-19 11:03:30,343 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175606555] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 11:03:30,344 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1665616484] [2022-02-19 11:03:30,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:03:30,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:03:30,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:03:30,351 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 11:03:30,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-19 11:03:30,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:03:30,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 13 conjunts are in the unsatisfiable core [2022-02-19 11:03:30,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:03:30,840 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 52 proven. 36 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-02-19 11:03:30,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 11:03:31,049 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 52 proven. 36 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-02-19 11:03:31,050 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1665616484] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 11:03:31,050 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 11:03:31,051 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 19 [2022-02-19 11:03:31,053 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880692133] [2022-02-19 11:03:31,054 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 11:03:31,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-19 11:03:31,060 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 11:03:31,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-19 11:03:31,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2022-02-19 11:03:31,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:03:31,092 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 11:03:31,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 4.75) internal successors, (95), 19 states have internal predecessors, (95), 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) [2022-02-19 11:03:31,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:03:31,659 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 453 transitions and produced 399 states. [2022-02-19 11:03:31,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-19 11:03:31,688 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-19 11:03:31,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-02-19 11:03:31,885 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-02-19 11:03:31,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 11:03:31,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1527477029, now seen corresponding path program 2 times [2022-02-19 11:03:31,886 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 11:03:31,886 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476442269] [2022-02-19 11:03:31,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:03:31,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 11:03:31,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:03:32,092 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 66 proven. 62 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-02-19 11:03:32,092 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 11:03:32,092 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476442269] [2022-02-19 11:03:32,093 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476442269] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 11:03:32,093 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076697467] [2022-02-19 11:03:32,093 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-19 11:03:32,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:03:32,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:03:32,094 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 11:03:32,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-19 11:03:32,176 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-19 11:03:32,176 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 11:03:32,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 17 conjunts are in the unsatisfiable core [2022-02-19 11:03:32,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:03:32,461 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 61 proven. 68 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-02-19 11:03:32,461 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 11:03:32,654 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 61 proven. 68 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-02-19 11:03:32,655 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1076697467] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 11:03:32,655 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 11:03:32,656 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 13] total 24 [2022-02-19 11:03:32,656 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962835564] [2022-02-19 11:03:32,656 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 11:03:32,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-19 11:03:32,660 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 11:03:32,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-19 11:03:32,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=501, Unknown=0, NotChecked=0, Total=600 [2022-02-19 11:03:32,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:03:32,661 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 11:03:32,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.28) internal successors, (107), 24 states have internal predecessors, (107), 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) [2022-02-19 11:03:32,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-19 11:03:32,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:03:33,630 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 484 transitions and produced 433 states. [2022-02-19 11:03:33,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-19 11:03:33,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-19 11:03:33,647 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-02-19 11:03:33,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:03:33,836 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-02-19 11:03:33,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 11:03:33,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1774841487, now seen corresponding path program 3 times [2022-02-19 11:03:33,837 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 11:03:33,837 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106267254] [2022-02-19 11:03:33,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:03:33,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 11:03:33,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:03:34,266 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 135 proven. 68 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-19 11:03:34,267 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 11:03:34,267 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106267254] [2022-02-19 11:03:34,267 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106267254] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 11:03:34,267 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104410431] [2022-02-19 11:03:34,267 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-19 11:03:34,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:03:34,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:03:34,269 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 11:03:34,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-19 11:03:34,333 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2022-02-19 11:03:34,333 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 11:03:34,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 10 conjunts are in the unsatisfiable core [2022-02-19 11:03:34,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:03:34,616 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 48 proven. 69 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-02-19 11:03:34,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 11:03:34,794 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 48 proven. 69 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-02-19 11:03:34,794 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104410431] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 11:03:34,795 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 11:03:34,795 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 9, 9] total 34 [2022-02-19 11:03:34,795 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229800727] [2022-02-19 11:03:34,795 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 11:03:34,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-02-19 11:03:34,796 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 11:03:34,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-02-19 11:03:34,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=1017, Unknown=0, NotChecked=0, Total=1190 [2022-02-19 11:03:34,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:03:34,797 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 11:03:34,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.4) internal successors, (119), 34 states have internal predecessors, (119), 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) [2022-02-19 11:03:34,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-19 11:03:34,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-02-19 11:03:34,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:03:36,021 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 572 transitions and produced 505 states. [2022-02-19 11:03:36,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-19 11:03:36,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-19 11:03:36,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-19 11:03:36,050 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-19 11:03:36,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:03:36,240 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-02-19 11:03:36,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 11:03:36,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1422385891, now seen corresponding path program 4 times [2022-02-19 11:03:36,240 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 11:03:36,241 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373587740] [2022-02-19 11:03:36,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:03:36,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 11:03:36,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:03:36,467 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 64 proven. 184 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-02-19 11:03:36,467 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 11:03:36,467 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373587740] [2022-02-19 11:03:36,467 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373587740] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 11:03:36,467 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965960083] [2022-02-19 11:03:36,468 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-19 11:03:36,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:03:36,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:03:36,469 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 11:03:36,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-19 11:03:36,539 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-19 11:03:36,540 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 11:03:36,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 23 conjunts are in the unsatisfiable core [2022-02-19 11:03:36,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:03:36,887 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 127 proven. 124 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-02-19 11:03:36,888 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 11:03:37,124 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 127 proven. 124 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-02-19 11:03:37,124 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [965960083] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 11:03:37,124 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 11:03:37,125 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 14, 14] total 30 [2022-02-19 11:03:37,125 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991650281] [2022-02-19 11:03:37,125 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 11:03:37,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-02-19 11:03:37,125 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 11:03:37,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-02-19 11:03:37,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=782, Unknown=0, NotChecked=0, Total=930 [2022-02-19 11:03:37,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:03:37,126 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 11:03:37,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.161290322580645) internal successors, (129), 30 states have internal predecessors, (129), 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) [2022-02-19 11:03:37,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-19 11:03:37,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-19 11:03:37,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2022-02-19 11:03:37,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:03:38,192 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 586 transitions and produced 518 states. [2022-02-19 11:03:38,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-19 11:03:38,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-19 11:03:38,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-19 11:03:38,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-19 11:03:38,218 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-19 11:03:38,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:03:38,407 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-02-19 11:03:38,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 11:03:38,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1894008483, now seen corresponding path program 5 times [2022-02-19 11:03:38,408 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 11:03:38,408 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184706503] [2022-02-19 11:03:38,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:03:38,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 11:03:38,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:03:38,662 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 81 proven. 117 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-02-19 11:03:38,662 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 11:03:38,662 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184706503] [2022-02-19 11:03:38,662 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184706503] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 11:03:38,663 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124581895] [2022-02-19 11:03:38,663 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-19 11:03:38,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:03:38,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:03:38,664 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 11:03:38,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-19 11:03:38,866 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2022-02-19 11:03:38,866 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 11:03:38,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 21 conjunts are in the unsatisfiable core [2022-02-19 11:03:38,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:03:39,371 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 98 proven. 139 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-02-19 11:03:39,371 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 11:03:39,579 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 98 proven. 139 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-02-19 11:03:39,580 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124581895] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 11:03:39,580 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 11:03:39,580 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 41 [2022-02-19 11:03:39,580 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757103583] [2022-02-19 11:03:39,580 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 11:03:39,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-02-19 11:03:39,581 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 11:03:39,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-02-19 11:03:39,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=252, Invalid=1470, Unknown=0, NotChecked=0, Total=1722 [2022-02-19 11:03:39,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:03:39,582 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 11:03:39,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 3.0952380952380953) internal successors, (130), 41 states have internal predecessors, (130), 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) [2022-02-19 11:03:39,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-19 11:03:39,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-19 11:03:39,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2022-02-19 11:03:39,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-02-19 11:03:39,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:03:41,017 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 643 transitions and produced 554 states. [2022-02-19 11:03:41,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-19 11:03:41,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-19 11:03:41,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-19 11:03:41,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-19 11:03:41,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-19 11:03:41,044 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-19 11:03:41,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:03:41,232 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-02-19 11:03:41,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 11:03:41,232 INFO L85 PathProgramCache]: Analyzing trace with hash -8475825, now seen corresponding path program 6 times [2022-02-19 11:03:41,232 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 11:03:41,232 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191099837] [2022-02-19 11:03:41,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:03:41,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 11:03:41,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:03:41,473 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 64 proven. 180 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2022-02-19 11:03:41,473 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 11:03:41,473 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191099837] [2022-02-19 11:03:41,473 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191099837] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 11:03:41,473 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [113221320] [2022-02-19 11:03:41,474 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-19 11:03:41,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:03:41,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:03:41,475 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 11:03:41,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-19 11:03:41,545 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-02-19 11:03:41,545 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 11:03:41,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 13 conjunts are in the unsatisfiable core [2022-02-19 11:03:41,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:03:41,981 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-19 11:03:41,982 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 28 [2022-02-19 11:03:42,266 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 53 proven. 10 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2022-02-19 11:03:42,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 11:03:42,834 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-02-19 11:03:42,835 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 27 [2022-02-19 11:03:42,872 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 19 proven. 44 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2022-02-19 11:03:42,872 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [113221320] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 11:03:42,872 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 11:03:42,872 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 11, 11] total 38 [2022-02-19 11:03:42,873 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728552704] [2022-02-19 11:03:42,873 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 11:03:42,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-02-19 11:03:42,873 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 11:03:42,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-02-19 11:03:42,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=1221, Unknown=0, NotChecked=0, Total=1406 [2022-02-19 11:03:42,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:03:42,874 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 11:03:42,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.5) internal successors, (133), 38 states have internal predecessors, (133), 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) [2022-02-19 11:03:42,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-19 11:03:42,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-19 11:03:42,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2022-02-19 11:03:42,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-02-19 11:03:42,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-02-19 11:03:42,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:05:09,107 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 722908 transitions and produced 151758 states. [2022-02-19 11:05:09,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-19 11:05:09,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-19 11:05:09,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-19 11:05:09,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-19 11:05:09,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-19 11:05:09,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-02-19 11:05:09,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-19 11:05:09,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:05:09,312 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-02-19 11:05:09,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 11:05:09,312 INFO L85 PathProgramCache]: Analyzing trace with hash -2079613875, now seen corresponding path program 7 times [2022-02-19 11:05:09,313 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 11:05:09,313 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529488794] [2022-02-19 11:05:09,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:05:09,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 11:05:09,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:05:09,801 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 286 proven. 146 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-02-19 11:05:09,801 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 11:05:09,801 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529488794] [2022-02-19 11:05:09,801 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529488794] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 11:05:09,802 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025699840] [2022-02-19 11:05:09,802 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-19 11:05:09,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:05:09,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:05:09,804 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 11:05:09,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-19 11:05:09,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:05:09,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 23 conjunts are in the unsatisfiable core [2022-02-19 11:05:09,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:05:10,538 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 167 proven. 100 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2022-02-19 11:05:10,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 11:05:10,760 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 167 proven. 100 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2022-02-19 11:05:10,761 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025699840] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 11:05:10,761 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 11:05:10,761 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 23, 23] total 59 [2022-02-19 11:05:10,761 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258421853] [2022-02-19 11:05:10,761 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 11:05:10,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2022-02-19 11:05:10,762 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 11:05:10,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2022-02-19 11:05:10,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=437, Invalid=3103, Unknown=0, NotChecked=0, Total=3540 [2022-02-19 11:05:10,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:05:10,764 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 11:05:10,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 2.683333333333333) internal successors, (161), 59 states have internal predecessors, (161), 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) [2022-02-19 11:05:10,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-19 11:05:10,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-02-19 11:05:10,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-02-19 11:05:10,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-02-19 11:05:10,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-19 11:05:10,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2022-02-19 11:05:10,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:05:12,319 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 707 transitions and produced 577 states. [2022-02-19 11:05:12,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-19 11:05:12,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-19 11:05:12,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-19 11:05:12,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-19 11:05:12,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-02-19 11:05:12,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-02-19 11:05:12,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-19 11:05:12,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-19 11:05:12,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-02-19 11:05:12,520 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-02-19 11:05:12,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 11:05:12,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1767368361, now seen corresponding path program 8 times [2022-02-19 11:05:12,521 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 11:05:12,521 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114172159] [2022-02-19 11:05:12,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:05:12,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 11:05:12,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:05:12,979 INFO L134 CoverageAnalysis]: Checked inductivity of 573 backedges. 290 proven. 219 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-02-19 11:05:12,979 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 11:05:12,979 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114172159] [2022-02-19 11:05:12,979 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114172159] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 11:05:12,979 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468972498] [2022-02-19 11:05:12,979 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-19 11:05:12,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:05:12,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:05:12,981 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 11:05:12,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-19 11:05:13,055 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-19 11:05:13,055 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 11:05:13,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 24 conjunts are in the unsatisfiable core [2022-02-19 11:05:13,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:05:13,662 INFO L134 CoverageAnalysis]: Checked inductivity of 573 backedges. 190 proven. 100 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2022-02-19 11:05:13,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 11:05:13,889 INFO L134 CoverageAnalysis]: Checked inductivity of 573 backedges. 190 proven. 100 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2022-02-19 11:05:13,889 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468972498] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 11:05:13,889 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 11:05:13,889 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 24, 24] total 60 [2022-02-19 11:05:13,890 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466382533] [2022-02-19 11:05:13,890 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 11:05:13,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2022-02-19 11:05:13,890 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 11:05:13,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2022-02-19 11:05:13,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=474, Invalid=3186, Unknown=0, NotChecked=0, Total=3660 [2022-02-19 11:05:13,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:05:13,892 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 11:05:13,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 3.0) internal successors, (183), 60 states have internal predecessors, (183), 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) [2022-02-19 11:05:13,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-02-19 11:05:13,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-02-19 11:05:13,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-02-19 11:05:13,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-19 11:05:13,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-02-19 11:05:13,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2022-02-19 11:05:13,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-02-19 11:05:13,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:05:16,011 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 743 transitions and produced 641 states. [2022-02-19 11:05:16,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-19 11:05:16,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-19 11:05:16,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-19 11:05:16,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-19 11:05:16,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-02-19 11:05:16,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-02-19 11:05:16,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-19 11:05:16,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-19 11:05:16,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-19 11:05:16,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:05:16,213 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-02-19 11:05:16,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 11:05:16,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1909956543, now seen corresponding path program 9 times [2022-02-19 11:05:16,213 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 11:05:16,213 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501188567] [2022-02-19 11:05:16,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:05:16,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 11:05:16,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:05:16,509 INFO L134 CoverageAnalysis]: Checked inductivity of 669 backedges. 269 proven. 144 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2022-02-19 11:05:16,509 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 11:05:16,509 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501188567] [2022-02-19 11:05:16,509 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501188567] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 11:05:16,509 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64951929] [2022-02-19 11:05:16,509 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-19 11:05:16,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:05:16,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:05:16,511 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 11:05:16,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-19 11:05:16,600 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2022-02-19 11:05:16,600 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 11:05:16,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 22 conjunts are in the unsatisfiable core [2022-02-19 11:05:16,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:05:17,112 INFO L353 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-02-19 11:05:17,113 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-02-19 11:05:17,275 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-19 11:05:17,275 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 32 [2022-02-19 11:05:17,730 INFO L134 CoverageAnalysis]: Checked inductivity of 669 backedges. 144 proven. 108 refuted. 0 times theorem prover too weak. 417 trivial. 0 not checked. [2022-02-19 11:05:17,730 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 11:05:18,766 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-19 11:05:18,766 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 46 [2022-02-19 11:05:18,951 INFO L134 CoverageAnalysis]: Checked inductivity of 669 backedges. 86 proven. 167 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2022-02-19 11:05:18,952 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [64951929] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 11:05:18,952 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 11:05:18,952 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 16, 17] total 57 [2022-02-19 11:05:18,952 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205635985] [2022-02-19 11:05:18,952 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 11:05:18,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-02-19 11:05:18,952 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 11:05:18,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-02-19 11:05:18,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=407, Invalid=2899, Unknown=0, NotChecked=0, Total=3306 [2022-02-19 11:05:18,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:05:18,954 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 11:05:18,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 3.189655172413793) internal successors, (185), 57 states have internal predecessors, (185), 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) [2022-02-19 11:05:18,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-02-19 11:05:18,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-02-19 11:05:18,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-02-19 11:05:18,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-19 11:05:18,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-02-19 11:05:18,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2022-02-19 11:05:18,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-02-19 11:05:18,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-02-19 11:05:18,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.