/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-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/commit-1.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2ce48c3f3f8970e6bfb7f04ced506932607c57fe-2ce48c3 [2021-10-22 16:42:43,577 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-22 16:42:43,579 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-22 16:42:43,649 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-22 16:42:43,658 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-22 16:42:43,659 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-22 16:42:43,660 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-22 16:42:43,661 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-22 16:42:43,661 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-22 16:42:43,662 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-22 16:42:43,663 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-22 16:42:43,664 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-22 16:42:43,666 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-22 16:42:43,668 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-22 16:42:43,669 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-22 16:42:43,669 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-22 16:42:43,671 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-22 16:42:43,676 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-22 16:42:43,677 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-22 16:42:43,677 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-22 16:42:43,682 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-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Random42.epf [2021-10-22 16:42:43,708 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-22 16:42:43,708 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-22 16:42:43,708 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-22 16:42:43,708 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-22 16:42:43,709 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-22 16:42:43,709 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-22 16:42:43,709 INFO L138 SettingsManager]: * Use SBE=true [2021-10-22 16:42:43,709 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-22 16:42:43,709 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-22 16:42:43,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-22 16:42:43,709 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-22 16:42:43,710 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-22 16:42:43,710 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-22 16:42:43,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-22 16:42:43,710 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-22 16:42:43,710 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-22 16:42:43,710 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-22 16:42:43,710 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-22 16:42:43,710 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-22 16:42:43,710 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-22 16:42:43,710 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-22 16:42:43,710 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-22 16:42:43,710 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-22 16:42:43,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-22 16:42:43,711 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-22 16:42:43,711 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-22 16:42:43,711 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-22 16:42:43,711 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-22 16:42:43,711 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-10-22 16:42:43,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-22 16:42:43,711 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-22 16:42:43,711 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-22 16:42:43,711 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-22 16:42:43,711 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-22 16:42:43,711 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-22 16:42:43,711 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-22 16:42:43,712 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 [2021-10-22 16:42:43,712 INFO L138 SettingsManager]: * Use conditional POR in concurrent analysis=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-22 16:42:43,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-22 16:42:43,885 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-22 16:42:43,887 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-22 16:42:43,887 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-10-22 16:42:43,891 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-10-22 16:42:43,891 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/commit-1.wvr.bpl [2021-10-22 16:42:43,891 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/commit-1.wvr.bpl' [2021-10-22 16:42:43,914 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-22 16:42:43,914 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-10-22 16:42:43,915 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-22 16:42:43,915 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-22 16:42:43,915 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-22 16:42:43,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "commit-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 04:42:43" (1/1) ... [2021-10-22 16:42:43,936 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "commit-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 04:42:43" (1/1) ... [2021-10-22 16:42:43,947 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-22 16:42:43,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-22 16:42:43,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-22 16:42:43,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-22 16:42:43,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "commit-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 04:42:43" (1/1) ... [2021-10-22 16:42:43,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "commit-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 04:42:43" (1/1) ... [2021-10-22 16:42:43,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "commit-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 04:42:43" (1/1) ... [2021-10-22 16:42:43,954 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "commit-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 04:42:43" (1/1) ... [2021-10-22 16:42:43,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "commit-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 04:42:43" (1/1) ... [2021-10-22 16:42:43,958 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "commit-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 04:42:43" (1/1) ... [2021-10-22 16:42:43,958 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "commit-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 04:42:43" (1/1) ... [2021-10-22 16:42:43,959 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-22 16:42:43,960 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-22 16:42:43,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-22 16:42:43,960 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-22 16:42:43,961 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "commit-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 04:42:43" (1/1) ... [2021-10-22 16:42:43,965 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-22 16:42:43,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 16:42:43,981 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) [2021-10-22 16:42:43,998 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 [2021-10-22 16:42:44,025 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-10-22 16:42:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-22 16:42:44,025 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-22 16:42:44,025 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-10-22 16:42:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-22 16:42:44,025 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-22 16:42:44,025 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-10-22 16:42:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-22 16:42:44,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-22 16:42:44,025 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-10-22 16:42:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-22 16:42:44,026 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-22 16:42:44,026 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-22 16:42:44,283 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-22 16:42:44,283 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-10-22 16:42:44,283 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2021-10-22 16:42:44,284 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2021-10-22 16:42:44,284 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: thread3EXIT is neither atomic block end nor error location. [2021-10-22 16:42:44,285 INFO L202 PluginConnector]: Adding new model commit-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 04:42:44 BoogieIcfgContainer [2021-10-22 16:42:44,286 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-22 16:42:44,287 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-22 16:42:44,287 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-22 16:42:44,289 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-22 16:42:44,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "commit-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 04:42:43" (1/2) ... [2021-10-22 16:42:44,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@319ba098 and model type commit-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 04:42:44, skipping insertion in model container [2021-10-22 16:42:44,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "commit-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 04:42:44" (2/2) ... [2021-10-22 16:42:44,290 INFO L111 eAbstractionObserver]: Analyzing ICFG commit-1.wvr.bpl [2021-10-22 16:42:44,293 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-22 16:42:44,293 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-22 16:42:44,294 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-22 16:42:44,294 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-22 16:42:44,316 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-22 16:42:44,343 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-22 16:42:44,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 16:42:44,345 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) [2021-10-22 16:42:44,346 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 [2021-10-22 16:42:44,372 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-22 16:42:44,376 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, mConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-22 16:42:44,376 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-22 16:42:44,507 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 16:42:44,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 16:42:44,511 INFO L82 PathProgramCache]: Analyzing trace with hash 913422133, now seen corresponding path program 1 times [2021-10-22 16:42:44,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 16:42:44,516 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401405845] [2021-10-22 16:42:44,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 16:42:44,517 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 16:42:44,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 16:42:44,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 16:42:44,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 16:42:44,598 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401405845] [2021-10-22 16:42:44,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401405845] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 16:42:44,600 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 16:42:44,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-22 16:42:44,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616207481] [2021-10-22 16:42:44,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-22 16:42:44,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 16:42:44,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-22 16:42:44,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-22 16:42:44,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:42:44,623 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 16:42:44,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2021-10-22 16:42:44,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:42:44,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:44,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-22 16:42:44,646 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 16:42:44,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 16:42:44,650 INFO L82 PathProgramCache]: Analyzing trace with hash 73304353, now seen corresponding path program 1 times [2021-10-22 16:42:44,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 16:42:44,650 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26861846] [2021-10-22 16:42:44,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 16:42:44,651 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 16:42:44,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 16:42:44,761 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 16:42:44,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 16:42:44,762 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26861846] [2021-10-22 16:42:44,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26861846] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:42:44,763 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323252059] [2021-10-22 16:42:44,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 16:42:44,764 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 16:42:44,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 16:42:44,766 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) [2021-10-22 16:42:44,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-22 16:42:44,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 16:42:44,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-22 16:42:44,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 16:42:44,938 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 16:42:44,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323252059] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:42:44,939 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 16:42:44,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2021-10-22 16:42:44,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000263597] [2021-10-22 16:42:44,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-22 16:42:44,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 16:42:44,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-22 16:42:44,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-22 16:42:44,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:42:44,941 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 16:42:44,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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) [2021-10-22 16:42:44,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:44,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:42:44,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:44,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:44,982 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-10-22 16:42:45,182 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,SelfDestructingSolverStorable1 [2021-10-22 16:42:45,182 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 16:42:45,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 16:42:45,183 INFO L82 PathProgramCache]: Analyzing trace with hash -2021881553, now seen corresponding path program 1 times [2021-10-22 16:42:45,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 16:42:45,183 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71551757] [2021-10-22 16:42:45,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 16:42:45,183 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 16:42:45,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 16:42:45,234 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-22 16:42:45,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 16:42:45,235 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71551757] [2021-10-22 16:42:45,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71551757] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 16:42:45,236 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 16:42:45,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-22 16:42:45,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814669257] [2021-10-22 16:42:45,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-22 16:42:45,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 16:42:45,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-22 16:42:45,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-22 16:42:45,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:42:45,239 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 16:42:45,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 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) [2021-10-22 16:42:45,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:45,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:45,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:42:45,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:45,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:45,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:45,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-22 16:42:45,260 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 16:42:45,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 16:42:45,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1748034149, now seen corresponding path program 1 times [2021-10-22 16:42:45,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 16:42:45,262 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545887307] [2021-10-22 16:42:45,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 16:42:45,265 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 16:42:45,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 16:42:45,301 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 16:42:45,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 16:42:45,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545887307] [2021-10-22 16:42:45,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545887307] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:42:45,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511792128] [2021-10-22 16:42:45,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 16:42:45,308 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 16:42:45,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 16:42:45,310 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) [2021-10-22 16:42:45,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-22 16:42:45,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 16:42:45,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-22 16:42:45,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 16:42:45,473 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 16:42:45,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1511792128] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:42:45,474 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 16:42:45,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2021-10-22 16:42:45,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875639734] [2021-10-22 16:42:45,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-22 16:42:45,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 16:42:45,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-22 16:42:45,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-22 16:42:45,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:42:45,475 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 16:42:45,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 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) [2021-10-22 16:42:45,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:45,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:45,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:45,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:42:45,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:45,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:45,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:45,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:45,507 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-22 16:42:45,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 16:42:45,707 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 16:42:45,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 16:42:45,707 INFO L82 PathProgramCache]: Analyzing trace with hash -1172695841, now seen corresponding path program 1 times [2021-10-22 16:42:45,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 16:42:45,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016216292] [2021-10-22 16:42:45,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 16:42:45,708 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 16:42:45,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 16:42:45,748 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-22 16:42:45,749 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 16:42:45,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016216292] [2021-10-22 16:42:45,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016216292] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 16:42:45,749 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 16:42:45,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-22 16:42:45,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464368890] [2021-10-22 16:42:45,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-22 16:42:45,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 16:42:45,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-22 16:42:45,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-22 16:42:45,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:42:45,751 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 16:42:45,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 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) [2021-10-22 16:42:45,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:45,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:45,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:45,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:45,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:42:45,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:45,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:45,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:45,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:45,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:45,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-22 16:42:45,777 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 16:42:45,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 16:42:45,778 INFO L82 PathProgramCache]: Analyzing trace with hash 562245605, now seen corresponding path program 2 times [2021-10-22 16:42:45,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 16:42:45,778 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187142134] [2021-10-22 16:42:45,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 16:42:45,778 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 16:42:45,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 16:42:45,851 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 16:42:45,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 16:42:45,851 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187142134] [2021-10-22 16:42:45,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187142134] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:42:45,852 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1943673448] [2021-10-22 16:42:45,852 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-22 16:42:45,852 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 16:42:45,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 16:42:45,853 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) [2021-10-22 16:42:45,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-22 16:42:45,915 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-22 16:42:45,915 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 16:42:45,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-22 16:42:45,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 16:42:46,143 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 16:42:46,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1943673448] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:42:46,143 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 16:42:46,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-10-22 16:42:46,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957450547] [2021-10-22 16:42:46,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-22 16:42:46,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 16:42:46,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-22 16:42:46,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-22 16:42:46,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:42:46,145 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 16:42:46,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 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) [2021-10-22 16:42:46,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:46,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:46,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:46,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:46,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:46,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:42:46,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:46,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:46,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:46,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:46,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:46,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 16:42:46,204 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-10-22 16:42:46,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 16:42:46,403 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 16:42:46,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 16:42:46,404 INFO L82 PathProgramCache]: Analyzing trace with hash -88144857, now seen corresponding path program 3 times [2021-10-22 16:42:46,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 16:42:46,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302026328] [2021-10-22 16:42:46,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 16:42:46,404 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 16:42:46,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 16:42:46,479 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 16:42:46,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 16:42:46,480 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302026328] [2021-10-22 16:42:46,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302026328] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:42:46,480 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972250788] [2021-10-22 16:42:46,480 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-22 16:42:46,480 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 16:42:46,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 16:42:46,481 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) [2021-10-22 16:42:46,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-22 16:42:46,560 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-22 16:42:46,560 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 16:42:46,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-22 16:42:46,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 16:42:46,739 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 16:42:46,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972250788] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:42:46,740 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 16:42:46,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-10-22 16:42:46,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528083091] [2021-10-22 16:42:46,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-22 16:42:46,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 16:42:46,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-22 16:42:46,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-22 16:42:46,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:42:46,741 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 16:42:46,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 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) [2021-10-22 16:42:46,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:46,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:46,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:46,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:46,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:46,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 16:42:46,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:42:46,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:46,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:46,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:46,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:46,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:46,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 16:42:46,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 16:42:46,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-22 16:42:47,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 16:42:47,034 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 16:42:47,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 16:42:47,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1224587301, now seen corresponding path program 4 times [2021-10-22 16:42:47,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 16:42:47,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405100370] [2021-10-22 16:42:47,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 16:42:47,035 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 16:42:47,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 16:42:47,190 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 16:42:47,190 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 16:42:47,190 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405100370] [2021-10-22 16:42:47,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405100370] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:42:47,190 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554290307] [2021-10-22 16:42:47,190 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-22 16:42:47,191 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 16:42:47,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 16:42:47,191 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) [2021-10-22 16:42:47,209 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-22 16:42:47,289 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-22 16:42:47,289 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 16:42:47,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-22 16:42:47,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 16:42:47,451 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 16:42:47,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554290307] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:42:47,452 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 16:42:47,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 10 [2021-10-22 16:42:47,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879593904] [2021-10-22 16:42:47,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-22 16:42:47,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 16:42:47,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-22 16:42:47,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-10-22 16:42:47,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:42:47,453 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 16:42:47,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 10 states have internal predecessors, (31), 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) [2021-10-22 16:42:47,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:47,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:47,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:47,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:47,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:47,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 16:42:47,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 16:42:47,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:42:47,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:47,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:47,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:47,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:47,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:47,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 16:42:47,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 16:42:47,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 16:42:47,535 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-22 16:42:47,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 16:42:47,736 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 16:42:47,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 16:42:47,737 INFO L82 PathProgramCache]: Analyzing trace with hash 1563127529, now seen corresponding path program 5 times [2021-10-22 16:42:47,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 16:42:47,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880764140] [2021-10-22 16:42:47,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 16:42:47,738 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 16:42:47,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 16:42:47,810 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 16:42:47,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 16:42:47,810 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880764140] [2021-10-22 16:42:47,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880764140] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:42:47,810 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329553940] [2021-10-22 16:42:47,810 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-22 16:42:47,810 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 16:42:47,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 16:42:47,821 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) [2021-10-22 16:42:47,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-22 16:42:47,950 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-10-22 16:42:47,950 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 16:42:47,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-22 16:42:47,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 16:42:48,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-10-22 16:42:48,322 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 16:42:48,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [329553940] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:42:48,323 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 16:42:48,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-10-22 16:42:48,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619217084] [2021-10-22 16:42:48,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-22 16:42:48,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 16:42:48,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-22 16:42:48,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-10-22 16:42:48,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:42:48,324 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 16:42:48,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 9 states have internal predecessors, (28), 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) [2021-10-22 16:42:48,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:48,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:48,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:48,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:48,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:48,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 16:42:48,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 16:42:48,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 16:42:48,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:42:48,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:48,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:48,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:48,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:48,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:48,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 16:42:48,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 16:42:48,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 16:42:48,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:48,442 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-22 16:42:48,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 16:42:48,644 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 16:42:48,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 16:42:48,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1299267573, now seen corresponding path program 1 times [2021-10-22 16:42:48,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 16:42:48,645 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483629858] [2021-10-22 16:42:48,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 16:42:48,645 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 16:42:48,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 16:42:48,709 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 16:42:48,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 16:42:48,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483629858] [2021-10-22 16:42:48,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483629858] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:42:48,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465938201] [2021-10-22 16:42:48,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 16:42:48,710 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 16:42:48,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 16:42:48,711 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) [2021-10-22 16:42:48,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-22 16:42:48,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 16:42:48,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-22 16:42:48,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 16:42:49,247 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 16:42:49,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465938201] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:42:49,247 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 16:42:49,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-10-22 16:42:49,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558929403] [2021-10-22 16:42:49,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-22 16:42:49,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 16:42:49,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-22 16:42:49,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-10-22 16:42:49,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:42:49,251 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 16:42:49,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 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) [2021-10-22 16:42:49,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:49,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:49,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:49,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:49,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:49,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 16:42:49,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 16:42:49,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 16:42:49,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:49,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:42:49,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:49,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:49,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:49,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:49,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:49,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 16:42:49,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 16:42:49,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 16:42:49,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:49,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:49,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-22 16:42:49,583 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,SelfDestructingSolverStorable9 [2021-10-22 16:42:49,584 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 16:42:49,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 16:42:49,584 INFO L82 PathProgramCache]: Analyzing trace with hash -1604123281, now seen corresponding path program 2 times [2021-10-22 16:42:49,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 16:42:49,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446490678] [2021-10-22 16:42:49,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 16:42:49,584 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 16:42:49,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 16:42:49,659 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 16:42:49,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 16:42:49,659 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446490678] [2021-10-22 16:42:49,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446490678] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:42:49,659 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [610524193] [2021-10-22 16:42:49,659 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-22 16:42:49,659 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 16:42:49,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 16:42:49,660 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) [2021-10-22 16:42:49,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-22 16:42:49,799 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-22 16:42:49,800 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 16:42:49,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-22 16:42:49,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 16:42:50,301 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 16:42:50,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [610524193] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:42:50,302 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 16:42:50,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2021-10-22 16:42:50,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330249715] [2021-10-22 16:42:50,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-22 16:42:50,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 16:42:50,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-22 16:42:50,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-10-22 16:42:50,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:42:50,303 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 16:42:50,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 11 states have internal predecessors, (29), 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) [2021-10-22 16:42:50,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:50,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:50,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:50,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:50,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:50,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 16:42:50,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 16:42:50,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 16:42:50,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:50,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:50,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:42:50,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:50,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:50,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:50,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:50,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:50,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 16:42:50,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 16:42:50,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 16:42:50,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:50,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:50,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 16:42:50,503 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-22 16:42:50,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 16:42:50,701 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 16:42:50,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 16:42:50,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1830251659, now seen corresponding path program 3 times [2021-10-22 16:42:50,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 16:42:50,704 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382912490] [2021-10-22 16:42:50,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 16:42:50,704 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 16:42:50,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 16:42:50,838 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 16:42:50,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 16:42:50,838 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382912490] [2021-10-22 16:42:50,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382912490] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:42:50,838 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284077087] [2021-10-22 16:42:50,838 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-22 16:42:50,839 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 16:42:50,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 16:42:50,840 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) [2021-10-22 16:42:50,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-22 16:42:51,010 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-22 16:42:51,010 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 16:42:51,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-22 16:42:51,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 16:42:51,505 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 16:42:51,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [284077087] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:42:51,505 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 16:42:51,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2021-10-22 16:42:51,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699580611] [2021-10-22 16:42:51,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-22 16:42:51,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 16:42:51,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-22 16:42:51,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-10-22 16:42:51,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:42:51,506 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 16:42:51,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 12 states have internal predecessors, (31), 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) [2021-10-22 16:42:51,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:51,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:51,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:51,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:51,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:51,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 16:42:51,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 16:42:51,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 16:42:51,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:51,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:51,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 16:42:51,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:42:51,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:51,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:51,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:51,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:51,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:51,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 16:42:51,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 16:42:51,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 16:42:51,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:51,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:51,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 16:42:51,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 16:42:51,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-22 16:42:51,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-10-22 16:42:51,843 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 16:42:51,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 16:42:51,844 INFO L82 PathProgramCache]: Analyzing trace with hash -50302001, now seen corresponding path program 4 times [2021-10-22 16:42:51,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 16:42:51,844 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799951543] [2021-10-22 16:42:51,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 16:42:51,844 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 16:42:51,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 16:42:51,991 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 16:42:51,992 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 16:42:51,992 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799951543] [2021-10-22 16:42:51,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799951543] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:42:51,992 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579032921] [2021-10-22 16:42:51,992 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-22 16:42:51,992 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 16:42:51,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 16:42:51,993 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 16:42:51,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-22 16:42:52,209 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-22 16:42:52,209 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 16:42:52,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-22 16:42:52,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 16:42:52,578 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 16:42:52,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [579032921] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:42:52,578 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 16:42:52,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-10-22 16:42:52,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902795350] [2021-10-22 16:42:52,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-22 16:42:52,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 16:42:52,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-22 16:42:52,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-10-22 16:42:52,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:42:52,579 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 16:42:52,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 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) [2021-10-22 16:42:52,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:52,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:52,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:52,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:52,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:52,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 16:42:52,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 16:42:52,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 16:42:52,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:52,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:52,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 16:42:52,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 16:42:52,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:42:52,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:52,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:52,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:52,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:52,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:52,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 16:42:52,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 16:42:52,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 16:42:52,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:52,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:52,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 16:42:52,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 16:42:52,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:52,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-22 16:42:52,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-22 16:42:52,937 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 16:42:52,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 16:42:52,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1392371311, now seen corresponding path program 5 times [2021-10-22 16:42:52,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 16:42:52,937 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140523304] [2021-10-22 16:42:52,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 16:42:52,937 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 16:42:52,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 16:42:53,095 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 16:42:53,095 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 16:42:53,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140523304] [2021-10-22 16:42:53,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140523304] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:42:53,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399725226] [2021-10-22 16:42:53,095 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-22 16:42:53,096 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 16:42:53,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 16:42:53,109 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 16:42:53,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-22 16:42:53,358 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-10-22 16:42:53,358 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 16:42:53,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-22 16:42:53,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 16:42:53,752 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 16:42:53,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399725226] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:42:53,753 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 16:42:53,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-10-22 16:42:53,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578959417] [2021-10-22 16:42:53,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-22 16:42:53,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 16:42:53,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-22 16:42:53,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2021-10-22 16:42:53,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:42:53,754 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 16:42:53,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.8823529411764706) internal successors, (32), 16 states have internal predecessors, (32), 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) [2021-10-22 16:42:53,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:53,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:53,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:53,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:53,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:53,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 16:42:53,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 16:42:53,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 16:42:53,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:53,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:53,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 16:42:53,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 16:42:53,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:53,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:42:53,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:53,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:53,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:53,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:53,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:53,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 16:42:53,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 16:42:53,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 16:42:53,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:53,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:53,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 16:42:53,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 16:42:53,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:53,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 16:42:53,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-22 16:42:54,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-22 16:42:54,162 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 16:42:54,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 16:42:54,162 INFO L82 PathProgramCache]: Analyzing trace with hash 459824739, now seen corresponding path program 6 times [2021-10-22 16:42:54,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 16:42:54,162 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830924438] [2021-10-22 16:42:54,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 16:42:54,163 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 16:42:54,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 16:42:54,358 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 16:42:54,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 16:42:54,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830924438] [2021-10-22 16:42:54,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830924438] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:42:54,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313739089] [2021-10-22 16:42:54,358 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-22 16:42:54,358 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 16:42:54,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 16:42:54,359 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 16:42:54,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-22 16:42:54,588 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-10-22 16:42:54,588 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 16:42:54,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-22 16:42:54,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 16:42:55,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-10-22 16:42:55,205 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 16:42:55,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [313739089] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:42:55,206 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 16:42:55,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2021-10-22 16:42:55,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625387397] [2021-10-22 16:42:55,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-22 16:42:55,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 16:42:55,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-22 16:42:55,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2021-10-22 16:42:55,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:42:55,207 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 16:42:55,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 16 states have internal predecessors, (35), 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) [2021-10-22 16:42:55,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:55,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:55,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:55,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:55,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:55,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 16:42:55,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 16:42:55,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 16:42:55,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:55,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:55,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 16:42:55,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 16:42:55,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:55,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 16:42:55,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:42:55,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:55,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:55,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:55,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:55,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:55,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 16:42:55,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 16:42:55,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 16:42:55,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:55,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:55,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 16:42:55,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 16:42:55,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:55,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 16:42:55,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 16:42:55,363 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-22 16:42:55,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-10-22 16:42:55,559 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 16:42:55,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 16:42:55,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1293554349, now seen corresponding path program 7 times [2021-10-22 16:42:55,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 16:42:55,560 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087101187] [2021-10-22 16:42:55,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 16:42:55,560 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 16:42:55,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 16:42:55,761 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 11 proven. 23 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-22 16:42:55,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 16:42:55,762 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087101187] [2021-10-22 16:42:55,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087101187] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:42:55,762 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565775336] [2021-10-22 16:42:55,762 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-22 16:42:55,762 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 16:42:55,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 16:42:55,763 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 16:42:55,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-22 16:42:56,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 16:42:56,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-22 16:42:56,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 16:42:56,702 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 19 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-22 16:42:56,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565775336] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:42:56,703 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 16:42:56,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 19 [2021-10-22 16:42:56,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783244796] [2021-10-22 16:42:56,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-22 16:42:56,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 16:42:56,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-22 16:42:56,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2021-10-22 16:42:56,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:42:56,704 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 16:42:56,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.85) internal successors, (37), 19 states have internal predecessors, (37), 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) [2021-10-22 16:42:56,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:56,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:56,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:56,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:56,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:56,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 16:42:56,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 16:42:56,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 16:42:56,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:56,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:56,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 16:42:56,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 16:42:56,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:56,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 16:42:56,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 16:42:56,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:42:57,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:57,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:57,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:57,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:57,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:57,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 16:42:57,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 16:42:57,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 16:42:57,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:57,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:57,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 16:42:57,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 16:42:57,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:57,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 16:42:57,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 16:42:57,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 16:42:57,023 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-22 16:42:57,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 16:42:57,207 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 16:42:57,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 16:42:57,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1455994237, now seen corresponding path program 8 times [2021-10-22 16:42:57,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 16:42:57,207 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214339305] [2021-10-22 16:42:57,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 16:42:57,208 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 16:42:57,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 16:42:57,433 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 16:42:57,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 16:42:57,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214339305] [2021-10-22 16:42:57,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214339305] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:42:57,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [897003154] [2021-10-22 16:42:57,434 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-22 16:42:57,434 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 16:42:57,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 16:42:57,435 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 16:42:57,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-22 16:42:57,807 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-22 16:42:57,807 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 16:42:57,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-22 16:42:57,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 16:42:58,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-10-22 16:42:58,688 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-22 16:42:58,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [897003154] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:42:58,688 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 16:42:58,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 16 [2021-10-22 16:42:58,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760136999] [2021-10-22 16:42:58,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-22 16:42:58,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 16:42:58,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-22 16:42:58,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-10-22 16:42:58,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:42:58,689 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 16:42:58,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 16 states have internal predecessors, (35), 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) [2021-10-22 16:42:58,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:58,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:58,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:58,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:58,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:58,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 16:42:58,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 16:42:58,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 16:42:58,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:58,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:58,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 16:42:58,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 16:42:58,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:58,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 16:42:58,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 16:42:58,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 16:42:58,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:42:59,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:59,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:59,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:59,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:59,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:42:59,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 16:42:59,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 16:42:59,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 16:42:59,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:59,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:59,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 16:42:59,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 16:42:59,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:42:59,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 16:42:59,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 16:42:59,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 16:42:59,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 16:42:59,180 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-10-22 16:42:59,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-10-22 16:42:59,362 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 16:42:59,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 16:42:59,362 INFO L82 PathProgramCache]: Analyzing trace with hash 2109469709, now seen corresponding path program 9 times [2021-10-22 16:42:59,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 16:42:59,363 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794148398] [2021-10-22 16:42:59,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 16:42:59,363 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 16:42:59,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 16:42:59,605 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-22 16:42:59,605 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 16:42:59,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794148398] [2021-10-22 16:42:59,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794148398] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:42:59,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136406316] [2021-10-22 16:42:59,605 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-22 16:42:59,605 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 16:42:59,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 16:42:59,606 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 16:42:59,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-22 16:42:59,955 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-22 16:42:59,955 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 16:42:59,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-22 16:42:59,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 16:43:00,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-10-22 16:43:01,003 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-22 16:43:01,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [136406316] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:43:01,003 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 16:43:01,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2021-10-22 16:43:01,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396220544] [2021-10-22 16:43:01,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-22 16:43:01,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 16:43:01,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-22 16:43:01,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-10-22 16:43:01,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:43:01,004 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 16:43:01,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 17 states have internal predecessors, (37), 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) [2021-10-22 16:43:01,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:01,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:01,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:01,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:01,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:01,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 16:43:01,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 16:43:01,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 16:43:01,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:43:01,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:43:01,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 16:43:01,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 16:43:01,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:43:01,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 16:43:01,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 16:43:01,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 16:43:01,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 16:43:01,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:43:01,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:01,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:01,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:01,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:01,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:01,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 16:43:01,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 16:43:01,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 16:43:01,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:43:01,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:43:01,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 16:43:01,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 16:43:01,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:43:01,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 16:43:01,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 16:43:01,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 16:43:01,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 16:43:01,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 16:43:01,224 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-22 16:43:01,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-10-22 16:43:01,425 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 16:43:01,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 16:43:01,425 INFO L82 PathProgramCache]: Analyzing trace with hash 969702339, now seen corresponding path program 10 times [2021-10-22 16:43:01,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 16:43:01,425 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177249417] [2021-10-22 16:43:01,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 16:43:01,425 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 16:43:01,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 16:43:01,585 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-22 16:43:01,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 16:43:01,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177249417] [2021-10-22 16:43:01,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177249417] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:43:01,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179282742] [2021-10-22 16:43:01,585 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-22 16:43:01,586 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 16:43:01,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 16:43:01,586 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 16:43:01,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-22 16:43:02,018 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-22 16:43:02,018 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 16:43:02,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-22 16:43:02,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 16:43:02,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-10-22 16:43:03,173 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-22 16:43:03,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1179282742] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:43:03,182 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 16:43:03,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2021-10-22 16:43:03,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260337755] [2021-10-22 16:43:03,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-22 16:43:03,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 16:43:03,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-22 16:43:03,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2021-10-22 16:43:03,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:43:03,183 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 16:43:03,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.0) internal successors, (40), 19 states have internal predecessors, (40), 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) [2021-10-22 16:43:03,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:03,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:03,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:03,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:03,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:03,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 16:43:03,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 16:43:03,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 16:43:03,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:43:03,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:43:03,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 16:43:03,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 16:43:03,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:43:03,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 16:43:03,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 16:43:03,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 16:43:03,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 16:43:03,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 16:43:03,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:43:03,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:03,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:03,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:03,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:03,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:03,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 16:43:03,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 16:43:03,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 16:43:03,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:43:03,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:43:03,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 16:43:03,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 16:43:03,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:43:03,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 16:43:03,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 16:43:03,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 16:43:03,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 16:43:03,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 16:43:03,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 16:43:03,458 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-10-22 16:43:03,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 16:43:03,639 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 16:43:03,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 16:43:03,639 INFO L82 PathProgramCache]: Analyzing trace with hash -632937263, now seen corresponding path program 11 times [2021-10-22 16:43:03,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 16:43:03,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865538963] [2021-10-22 16:43:03,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 16:43:03,640 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 16:43:03,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 16:43:03,880 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 9 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 16:43:03,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 16:43:03,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865538963] [2021-10-22 16:43:03,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865538963] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:43:03,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264366444] [2021-10-22 16:43:03,884 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-22 16:43:03,884 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 16:43:03,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 16:43:03,885 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 16:43:03,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-10-22 16:43:04,352 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-10-22 16:43:04,352 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 16:43:04,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-22 16:43:04,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 16:43:05,023 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 17 proven. 14 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-22 16:43:05,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [264366444] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:43:05,024 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 16:43:05,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 21 [2021-10-22 16:43:05,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072751688] [2021-10-22 16:43:05,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-22 16:43:05,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 16:43:05,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-22 16:43:05,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2021-10-22 16:43:05,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:43:05,025 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 16:43:05,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 21 states have internal predecessors, (38), 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) [2021-10-22 16:43:05,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:05,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:05,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:05,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:05,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:05,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 16:43:05,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 16:43:05,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 16:43:05,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:43:05,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:43:05,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 16:43:05,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 16:43:05,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:43:05,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 16:43:05,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 16:43:05,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 16:43:05,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 16:43:05,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 16:43:05,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 16:43:05,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:43:05,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:05,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:05,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:05,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:05,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:05,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 16:43:05,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 16:43:05,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 16:43:05,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:43:05,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:43:05,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 16:43:05,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 16:43:05,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:43:05,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 16:43:05,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 16:43:05,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 16:43:05,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 16:43:05,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 16:43:05,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-22 16:43:05,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 16:43:05,180 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-10-22 16:43:05,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 16:43:05,380 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 16:43:05,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 16:43:05,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1376946241, now seen corresponding path program 12 times [2021-10-22 16:43:05,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 16:43:05,381 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619113110] [2021-10-22 16:43:05,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 16:43:05,381 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 16:43:05,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 16:43:05,663 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 10 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 16:43:05,664 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 16:43:05,664 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619113110] [2021-10-22 16:43:05,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619113110] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:43:05,664 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282921282] [2021-10-22 16:43:05,664 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-22 16:43:05,664 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 16:43:05,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 16:43:05,665 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 16:43:05,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-10-22 16:43:06,141 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-10-22 16:43:06,141 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 16:43:06,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-22 16:43:06,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 16:43:06,994 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 10 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 16:43:06,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282921282] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:43:06,994 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 16:43:06,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2021-10-22 16:43:06,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848647824] [2021-10-22 16:43:06,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-22 16:43:06,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 16:43:06,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-22 16:43:06,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=574, Unknown=0, NotChecked=0, Total=650 [2021-10-22 16:43:06,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:43:06,997 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 16:43:06,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 1.5769230769230769) internal successors, (41), 25 states have internal predecessors, (41), 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) [2021-10-22 16:43:06,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:06,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:06,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:06,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:06,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:06,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 16:43:06,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 16:43:06,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 16:43:06,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:43:06,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:43:06,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 16:43:06,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 16:43:06,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:43:06,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 16:43:06,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 16:43:06,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 16:43:06,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 16:43:06,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 16:43:06,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-22 16:43:06,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 16:43:06,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:43:07,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:07,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:07,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:07,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:07,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:07,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 16:43:07,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 16:43:07,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 16:43:07,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:43:07,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:43:07,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 16:43:07,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 16:43:07,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:43:07,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 16:43:07,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 16:43:07,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 16:43:07,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 16:43:07,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 16:43:07,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-22 16:43:07,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 16:43:07,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 16:43:07,282 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-10-22 16:43:07,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 16:43:07,476 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 16:43:07,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 16:43:07,477 INFO L82 PathProgramCache]: Analyzing trace with hash -1038406013, now seen corresponding path program 13 times [2021-10-22 16:43:07,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 16:43:07,477 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819961039] [2021-10-22 16:43:07,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 16:43:07,477 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 16:43:07,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 16:43:07,811 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 16:43:07,811 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 16:43:07,811 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819961039] [2021-10-22 16:43:07,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819961039] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:43:07,811 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962501153] [2021-10-22 16:43:07,811 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-22 16:43:07,811 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 16:43:07,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 16:43:07,812 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 16:43:07,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-10-22 16:43:08,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 16:43:08,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-22 16:43:08,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 16:43:09,218 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-10-22 16:43:09,219 INFO L388 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 15 treesize of output 7 [2021-10-22 16:43:09,483 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 29 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-22 16:43:09,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962501153] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:43:09,484 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 16:43:09,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2021-10-22 16:43:09,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641207872] [2021-10-22 16:43:09,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-22 16:43:09,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 16:43:09,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-22 16:43:09,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=512, Unknown=0, NotChecked=0, Total=600 [2021-10-22 16:43:09,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:43:09,485 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 16:43:09,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.76) internal successors, (44), 24 states have internal predecessors, (44), 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) [2021-10-22 16:43:09,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:09,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:09,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:09,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:09,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:09,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 16:43:09,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 16:43:09,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 16:43:09,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:43:09,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:43:09,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 16:43:09,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 16:43:09,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:43:09,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 16:43:09,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 16:43:09,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 16:43:09,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 16:43:09,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 16:43:09,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-22 16:43:09,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 16:43:09,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 16:43:09,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:43:10,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:10,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:10,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:10,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:10,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:10,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 16:43:10,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 16:43:10,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 16:43:10,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:43:10,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:43:10,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 16:43:10,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 16:43:10,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:43:10,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 16:43:10,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 16:43:10,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 16:43:10,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 16:43:10,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-22 16:43:10,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-22 16:43:10,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 16:43:10,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 16:43:10,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-22 16:43:10,236 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-10-22 16:43:10,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-10-22 16:43:10,437 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 16:43:10,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 16:43:10,437 INFO L82 PathProgramCache]: Analyzing trace with hash -1772273905, now seen corresponding path program 14 times [2021-10-22 16:43:10,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 16:43:10,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406499333] [2021-10-22 16:43:10,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 16:43:10,437 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 16:43:10,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 16:43:10,766 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 9 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 16:43:10,766 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 16:43:10,766 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406499333] [2021-10-22 16:43:10,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406499333] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:43:10,766 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [547768348] [2021-10-22 16:43:10,766 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-22 16:43:10,767 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 16:43:10,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 16:43:10,771 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 16:43:10,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-10-22 16:43:11,413 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-22 16:43:11,413 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 16:43:11,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-22 16:43:11,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 16:43:12,739 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 22 proven. 32 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-22 16:43:12,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [547768348] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 16:43:12,740 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 16:43:12,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14] total 29 [2021-10-22 16:43:12,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921192608] [2021-10-22 16:43:12,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-10-22 16:43:12,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 16:43:12,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-10-22 16:43:12,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=779, Unknown=0, NotChecked=0, Total=870 [2021-10-22 16:43:12,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:43:12,741 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 16:43:12,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 1.5666666666666667) internal successors, (47), 29 states have internal predecessors, (47), 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) [2021-10-22 16:43:12,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:12,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:12,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:12,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:12,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:12,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 16:43:12,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 16:43:12,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 16:43:12,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:43:12,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:43:12,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 16:43:12,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 16:43:12,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:43:12,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 16:43:12,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 16:43:12,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 16:43:12,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 16:43:12,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-22 16:43:12,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-22 16:43:12,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 16:43:12,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 16:43:12,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-10-22 16:43:12,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:43:13,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:13,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:13,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:13,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:13,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:43:13,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 16:43:13,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 16:43:13,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 16:43:13,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:43:13,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:43:13,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 16:43:13,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 16:43:13,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-22 16:43:13,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 16:43:13,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 16:43:13,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 16:43:13,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 16:43:13,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-22 16:43:13,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-22 16:43:13,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 16:43:13,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 16:43:13,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-22 16:43:13,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-22 16:43:13,376 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-10-22 16:43:13,376 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-22 16:43:13,376 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-22 16:43:13,376 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-22 16:43:13,396 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-10-22 16:43:13,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-10-22 16:43:13,607 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-22 16:43:13,607 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-22 16:43:13,609 INFO L202 PluginConnector]: Adding new model commit-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 04:43:13 BasicIcfg [2021-10-22 16:43:13,609 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-22 16:43:13,609 INFO L168 Benchmark]: Toolchain (without parser) took 29694.51 ms. Allocated memory was 176.2 MB in the beginning and 685.8 MB in the end (delta: 509.6 MB). Free memory was 140.2 MB in the beginning and 448.6 MB in the end (delta: -308.4 MB). Peak memory consumption was 202.0 MB. Max. memory is 8.0 GB. [2021-10-22 16:43:13,609 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.09 ms. Allocated memory is still 176.2 MB. Free memory was 141.6 MB in the beginning and 141.4 MB in the end (delta: 143.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-22 16:43:13,609 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.78 ms. Allocated memory is still 176.2 MB. Free memory was 140.2 MB in the beginning and 138.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-22 16:43:13,610 INFO L168 Benchmark]: Boogie Preprocessor took 11.63 ms. Allocated memory is still 176.2 MB. Free memory was 138.7 MB in the beginning and 137.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-22 16:43:13,610 INFO L168 Benchmark]: RCFGBuilder took 325.91 ms. Allocated memory is still 176.2 MB. Free memory was 137.5 MB in the beginning and 151.5 MB in the end (delta: -14.0 MB). Peak memory consumption was 29.3 MB. Max. memory is 8.0 GB. [2021-10-22 16:43:13,610 INFO L168 Benchmark]: TraceAbstraction took 29322.01 ms. Allocated memory was 176.2 MB in the beginning and 685.8 MB in the end (delta: 509.6 MB). Free memory was 151.0 MB in the beginning and 448.6 MB in the end (delta: -297.6 MB). Peak memory consumption was 211.5 MB. Max. memory is 8.0 GB. [2021-10-22 16:43:13,611 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.09 ms. Allocated memory is still 176.2 MB. Free memory was 141.6 MB in the beginning and 141.4 MB in the end (delta: 143.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 31.78 ms. Allocated memory is still 176.2 MB. Free memory was 140.2 MB in the beginning and 138.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 11.63 ms. Allocated memory is still 176.2 MB. Free memory was 138.7 MB in the beginning and 137.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 325.91 ms. Allocated memory is still 176.2 MB. Free memory was 137.5 MB in the beginning and 151.5 MB in the end (delta: -14.0 MB). Peak memory consumption was 29.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 29322.01 ms. Allocated memory was 176.2 MB in the beginning and 685.8 MB in the end (delta: 509.6 MB). Free memory was 151.0 MB in the beginning and 448.6 MB in the end (delta: -297.6 MB). Peak memory consumption was 211.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3867, positive: 2384, positive conditional: 2266, positive unconditional: 118, negative: 1483, negative conditional: 1476, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2944, positive: 2384, positive conditional: 0, positive unconditional: 2384, negative: 560, negative conditional: 0, negative unconditional: 560, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 132, positive: 125, positive conditional: 0, positive unconditional: 125, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 132, positive: 125, positive conditional: 0, positive unconditional: 125, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 91, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 91, negative conditional: 0, negative unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2944, positive: 2259, positive conditional: 0, positive unconditional: 2259, negative: 553, negative conditional: 0, negative unconditional: 553, unknown: 132, unknown conditional: 0, unknown unconditional: 132] , Statistics on independence cache: Total cache size (in pairs): 132, Positive cache size: 125, Positive conditional cache size: 0, Positive unconditional cache size: 125, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Independence queries for same thread: 923 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 111, Number of persistent set computation: 22, Number of trivial persistent sets: 16, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3867, positive: 2384, positive conditional: 2266, positive unconditional: 118, negative: 1483, negative conditional: 1476, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2944, positive: 2384, positive conditional: 0, positive unconditional: 2384, negative: 560, negative conditional: 0, negative unconditional: 560, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 132, positive: 125, positive conditional: 0, positive unconditional: 125, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 132, positive: 125, positive conditional: 0, positive unconditional: 125, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 91, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 91, negative conditional: 0, negative unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2944, positive: 2259, positive conditional: 0, positive unconditional: 2259, negative: 553, negative conditional: 0, negative unconditional: 553, unknown: 132, unknown conditional: 0, unknown unconditional: 132] , Statistics on independence cache: Total cache size (in pairs): 132, Positive cache size: 125, Positive conditional cache size: 0, Positive unconditional cache size: 125, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Independence queries for same thread: 923 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 125]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 27 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 29264.6ms, OverallIterations: 23, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.6ms, PartialOrderReductionTime: 4371.1ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 232, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 150.0ms SsaConstructionTime, 482.6ms SatisfiabilityAnalysisTime, 14730.7ms InterpolantComputationTime, 796 NumberOfCodeBlocks, 794 NumberOfCodeBlocksAsserted, 72 NumberOfCheckSat, 753 ConstructedInterpolants, 64 QuantifiedInterpolants, 10843 SizeOfPredicates, 142 NumberOfNonLiveVariables, 1016 ConjunctsInSsa, 242 ConjunctsInUnsatCore, 43 InterpolantComputations, 3 PerfectInterpolantSequences, 177/678 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-22 16:43:13,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-10-22 16:43:13,839 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...