/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-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/vector-add.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2ce48c3f3f8970e6bfb7f04ced506932607c57fe-2ce48c3 [2021-10-22 14:22:52,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-22 14:22:52,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-22 14:22:52,199 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-22 14:22:52,265 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-Lockstep.epf [2021-10-22 14:22:52,301 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-22 14:22:52,301 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-22 14:22:52,301 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-22 14:22:52,301 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-22 14:22:52,302 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-22 14:22:52,302 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-22 14:22:52,302 INFO L138 SettingsManager]: * Use SBE=true [2021-10-22 14:22:52,303 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-22 14:22:52,303 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-22 14:22:52,303 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-22 14:22:52,303 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-22 14:22:52,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-22 14:22:52,303 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-22 14:22:52,303 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-22 14:22:52,303 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-22 14:22:52,304 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-22 14:22:52,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-22 14:22:52,304 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-22 14:22:52,304 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-22 14:22:52,304 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-22 14:22:52,304 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-22 14:22:52,304 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-22 14:22:52,304 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-22 14:22:52,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-22 14:22:52,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-22 14:22:52,305 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-22 14:22:52,305 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-22 14:22:52,305 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-22 14:22:52,305 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-10-22 14:22:52,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-22 14:22:52,305 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-22 14:22:52,306 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-22 14:22:52,306 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-22 14:22:52,306 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-22 14:22:52,306 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-22 14:22:52,306 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-22 14:22:52,306 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-22 14:22:52,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-22 14:22:52,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-22 14:22:52,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-22 14:22:52,550 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-10-22 14:22:52,550 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-10-22 14:22:52,552 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/vector-add.wvr.bpl [2021-10-22 14:22:52,552 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/vector-add.wvr.bpl' [2021-10-22 14:22:52,577 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-22 14:22:52,578 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-10-22 14:22:52,579 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-22 14:22:52,579 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-22 14:22:52,579 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-22 14:22:52,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 02:22:52" (1/1) ... [2021-10-22 14:22:52,597 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 02:22:52" (1/1) ... [2021-10-22 14:22:52,603 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-22 14:22:52,604 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-22 14:22:52,604 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-22 14:22:52,604 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-22 14:22:52,609 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 02:22:52" (1/1) ... [2021-10-22 14:22:52,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 02:22:52" (1/1) ... [2021-10-22 14:22:52,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 02:22:52" (1/1) ... [2021-10-22 14:22:52,611 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 02:22:52" (1/1) ... [2021-10-22 14:22:52,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 02:22:52" (1/1) ... [2021-10-22 14:22:52,620 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 02:22:52" (1/1) ... [2021-10-22 14:22:52,621 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 02:22:52" (1/1) ... [2021-10-22 14:22:52,626 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-22 14:22:52,628 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-22 14:22:52,628 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-22 14:22:52,628 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-22 14:22:52,629 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 02:22:52" (1/1) ... [2021-10-22 14:22:52,635 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-22 14:22:52,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 14:22:52,669 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 14:22:52,691 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 14:22:52,713 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-10-22 14:22:52,713 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-22 14:22:52,713 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-22 14:22:52,713 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-10-22 14:22:52,714 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-22 14:22:52,714 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-22 14:22:52,715 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-10-22 14:22:52,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-22 14:22:52,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-22 14:22:52,715 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-10-22 14:22:52,715 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-22 14:22:52,715 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-22 14:22:52,716 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 14:22:52,883 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-22 14:22:52,884 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-10-22 14:22:52,885 INFO L202 PluginConnector]: Adding new model vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:22:52 BoogieIcfgContainer [2021-10-22 14:22:52,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-22 14:22:52,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-22 14:22:52,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-22 14:22:52,890 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-22 14:22:52,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 02:22:52" (1/2) ... [2021-10-22 14:22:52,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@610d2726 and model type vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:22:52, skipping insertion in model container [2021-10-22 14:22:52,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:22:52" (2/2) ... [2021-10-22 14:22:52,892 INFO L111 eAbstractionObserver]: Analyzing ICFG vector-add.wvr.bpl [2021-10-22 14:22:52,896 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-22 14:22:52,897 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-22 14:22:52,897 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-22 14:22:52,897 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-22 14:22:52,971 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-22 14:22:53,006 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-22 14:22:53,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 14:22:53,008 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 14:22:53,009 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 14:22:53,033 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-22 14:22:53,053 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 14:22:53,053 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-22 14:22:53,206 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 14:22:53,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 14:22:53,211 INFO L82 PathProgramCache]: Analyzing trace with hash -780394456, now seen corresponding path program 1 times [2021-10-22 14:22:53,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 14:22:53,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183061344] [2021-10-22 14:22:53,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 14:22:53,219 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 14:22:53,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 14:22:53,540 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-22 14:22:53,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 14:22:53,541 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183061344] [2021-10-22 14:22:53,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183061344] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 14:22:53,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [58955105] [2021-10-22 14:22:53,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 14:22:53,542 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 14:22:53,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 14:22:53,544 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 14:22:53,545 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 14:22:53,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 14:22:53,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-22 14:22:53,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 14:22:53,987 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-22 14:22:53,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [58955105] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 14:22:53,988 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 14:22:53,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-10-22 14:22:53,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306709769] [2021-10-22 14:22:53,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-22 14:22:53,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 14:22:54,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-22 14:22:54,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-10-22 14:22:54,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 14:22:54,016 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 14:22:54,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 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 14:22:54,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 14:22:54,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-22 14:22:54,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-22 14:22:54,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-22 14:22:54,503 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 14:22:54,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 14:22:54,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1718131108, now seen corresponding path program 2 times [2021-10-22 14:22:54,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 14:22:54,505 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529004143] [2021-10-22 14:22:54,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 14:22:54,506 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 14:22:54,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 14:22:54,629 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-22 14:22:54,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 14:22:54,630 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529004143] [2021-10-22 14:22:54,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529004143] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 14:22:54,630 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921823979] [2021-10-22 14:22:54,630 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-22 14:22:54,631 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 14:22:54,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 14:22:54,632 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 14:22:54,634 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 14:22:54,701 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-22 14:22:54,702 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 14:22:54,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-22 14:22:54,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 14:22:54,930 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-22 14:22:54,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921823979] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 14:22:54,931 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 14:22:54,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2021-10-22 14:22:54,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21138796] [2021-10-22 14:22:54,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-22 14:22:54,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 14:22:54,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-22 14:22:54,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-10-22 14:22:54,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 14:22:54,936 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 14:22:54,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 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 14:22:54,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-22 14:22:54,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 14:22:55,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-22 14:22:55,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-22 14:22:55,274 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 14:22:55,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 14:22:55,460 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 14:22:55,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 14:22:55,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1186511854, now seen corresponding path program 3 times [2021-10-22 14:22:55,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 14:22:55,461 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524037167] [2021-10-22 14:22:55,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 14:22:55,461 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 14:22:55,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 14:22:55,596 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 12 proven. 14 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-22 14:22:55,596 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 14:22:55,596 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524037167] [2021-10-22 14:22:55,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524037167] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 14:22:55,597 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528926474] [2021-10-22 14:22:55,597 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-22 14:22:55,597 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 14:22:55,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 14:22:55,598 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 14:22:55,603 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 14:22:55,672 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-22 14:22:55,673 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 14:22:55,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-22 14:22:55,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 14:22:56,060 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 10 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-22 14:22:56,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528926474] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 14:22:56,061 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 14:22:56,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 19 [2021-10-22 14:22:56,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636208070] [2021-10-22 14:22:56,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-22 14:22:56,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 14:22:56,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-22 14:22:56,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2021-10-22 14:22:56,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 14:22:56,063 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 14:22:56,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.1578947368421053) internal successors, (60), 19 states have internal predecessors, (60), 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 14:22:56,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-22 14:22:56,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-10-22 14:22:56,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 14:22:56,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-22 14:22:56,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-22 14:22:56,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-22 14:22:56,724 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-22 14:22:56,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 14:22:56,916 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 14:22:56,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 14:22:56,917 INFO L82 PathProgramCache]: Analyzing trace with hash 593113880, now seen corresponding path program 4 times [2021-10-22 14:22:56,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 14:22:56,917 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919296172] [2021-10-22 14:22:56,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 14:22:56,917 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 14:22:56,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 14:22:57,067 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 14 proven. 52 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-22 14:22:57,068 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 14:22:57,068 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919296172] [2021-10-22 14:22:57,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919296172] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 14:22:57,068 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475539149] [2021-10-22 14:22:57,068 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-22 14:22:57,068 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 14:22:57,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 14:22:57,069 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 14:22:57,070 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 14:22:57,163 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-22 14:22:57,164 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 14:22:57,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-22 14:22:57,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 14:22:57,572 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 15 proven. 50 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-22 14:22:57,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1475539149] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 14:22:57,573 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 14:22:57,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 21 [2021-10-22 14:22:57,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887916120] [2021-10-22 14:22:57,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-22 14:22:57,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 14:22:57,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-22 14:22:57,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2021-10-22 14:22:57,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 14:22:57,575 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 14:22:57,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.380952380952381) internal successors, (71), 21 states have internal predecessors, (71), 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 14:22:57,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-22 14:22:57,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-10-22 14:22:57,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-10-22 14:22:57,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 14:22:57,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-22 14:22:57,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-22 14:22:57,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-10-22 14:22:57,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-22 14:22:57,985 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 14:22:58,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 14:22:58,176 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 14:22:58,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 14:22:58,176 INFO L82 PathProgramCache]: Analyzing trace with hash -1858690508, now seen corresponding path program 5 times [2021-10-22 14:22:58,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 14:22:58,176 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443034634] [2021-10-22 14:22:58,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 14:22:58,177 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 14:22:58,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 14:22:58,324 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 18 proven. 83 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-22 14:22:58,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 14:22:58,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443034634] [2021-10-22 14:22:58,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443034634] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 14:22:58,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [231649474] [2021-10-22 14:22:58,325 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-22 14:22:58,325 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 14:22:58,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 14:22:58,327 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 14:22:58,343 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 14:22:58,479 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-10-22 14:22:58,479 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 14:22:58,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-22 14:22:58,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 14:22:58,896 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 20 proven. 80 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-22 14:22:58,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [231649474] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 14:22:58,897 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 14:22:58,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 21 [2021-10-22 14:22:58,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020323677] [2021-10-22 14:22:58,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-22 14:22:58,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 14:22:58,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-22 14:22:58,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2021-10-22 14:22:58,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 14:22:58,898 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 14:22:58,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 21 states have internal predecessors, (74), 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 14:22:58,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-22 14:22:58,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-10-22 14:22:58,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-10-22 14:22:58,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-10-22 14:22:58,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 14:22:59,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-22 14:22:59,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-22 14:22:59,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-10-22 14:22:59,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-22 14:22:59,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-10-22 14:22:59,833 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 14:23:00,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 14:23:00,031 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 14:23:00,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 14:23:00,032 INFO L82 PathProgramCache]: Analyzing trace with hash 962166410, now seen corresponding path program 6 times [2021-10-22 14:23:00,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 14:23:00,032 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462562587] [2021-10-22 14:23:00,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 14:23:00,032 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 14:23:00,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 14:23:18,904 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 12 proven. 171 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-22 14:23:18,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 14:23:18,905 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462562587] [2021-10-22 14:23:18,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462562587] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 14:23:18,905 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366682150] [2021-10-22 14:23:18,905 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-22 14:23:18,906 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 14:23:18,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 14:23:18,912 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 14:23:18,913 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 14:23:19,210 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2021-10-22 14:23:19,210 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 14:23:19,212 WARN L261 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 77 conjunts are in the unsatisfiable core [2021-10-22 14:23:19,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 14:23:19,539 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-22 14:23:19,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-10-22 14:23:19,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:19,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-10-22 14:23:19,820 INFO L354 Elim1Store]: treesize reduction 35, result has 16.7 percent of original size [2021-10-22 14:23:19,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 38 [2021-10-22 14:23:20,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:20,023 INFO L354 Elim1Store]: treesize reduction 47, result has 13.0 percent of original size [2021-10-22 14:23:20,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 58 [2021-10-22 14:23:20,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:20,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:20,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:20,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 58 [2021-10-22 14:23:20,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:20,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:20,407 INFO L354 Elim1Store]: treesize reduction 88, result has 14.6 percent of original size [2021-10-22 14:23:20,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 64 treesize of output 72 [2021-10-22 14:23:20,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:20,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:20,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:20,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:20,707 INFO L354 Elim1Store]: treesize reduction 106, result has 10.9 percent of original size [2021-10-22 14:23:20,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 81 treesize of output 92 [2021-10-22 14:23:20,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:20,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:20,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:20,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:20,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:20,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:20,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 72 [2021-10-22 14:23:21,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:21,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:21,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:21,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:21,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:21,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:21,234 INFO L354 Elim1Store]: treesize reduction 168, result has 11.6 percent of original size [2021-10-22 14:23:21,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 98 treesize of output 112 [2021-10-22 14:23:21,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:21,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:21,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:21,534 INFO L354 Elim1Store]: treesize reduction 156, result has 11.4 percent of original size [2021-10-22 14:23:21,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 91 treesize of output 108 [2021-10-22 14:23:21,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 68 [2021-10-22 14:23:22,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:22,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:22,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:22,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:22,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:22,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:22,306 INFO L354 Elim1Store]: treesize reduction 224, result has 8.6 percent of original size [2021-10-22 14:23:22,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 108 treesize of output 128 [2021-10-22 14:23:22,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:22,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:22,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:22,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:22,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:22,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:22,752 INFO L354 Elim1Store]: treesize reduction 250, result has 9.7 percent of original size [2021-10-22 14:23:22,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 16 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 119 treesize of output 142 [2021-10-22 14:23:23,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:23,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:23,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:23,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:23,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:23,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 88 [2021-10-22 14:23:23,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:23,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:23,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:23,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:23,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:23,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:24,021 INFO L354 Elim1Store]: treesize reduction 288, result has 8.6 percent of original size [2021-10-22 14:23:24,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 21 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 24 case distinctions, treesize of input 130 treesize of output 156 [2021-10-22 14:23:24,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:24,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:24,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:24,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:24,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:24,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:24,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:24,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:24,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:24,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:24,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:24,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 108 [2021-10-22 14:23:25,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:25,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:25,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:25,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:25,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:25,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:25,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:25,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:25,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:25,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:25,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:25,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:25,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:25,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:25,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:25,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:25,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:25,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:25,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:25,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:25,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:25,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:25,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:25,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:25,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:25,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:25,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:25,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:25,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:25,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:25,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:25,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:25,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:25,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 14:23:25,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 170 [2021-10-22 14:23:25,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 110 [2021-10-22 14:23:26,729 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 124 [2021-10-22 14:23:27,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 138 [2021-10-22 14:23:28,381 INFO L354 Elim1Store]: treesize reduction 472, result has 2.7 percent of original size [2021-10-22 14:23:28,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 15 select indices, 15 select index equivalence classes, 55 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 50 case distinctions, treesize of input 278 treesize of output 240 [2021-10-22 14:23:28,464 INFO L354 Elim1Store]: treesize reduction 206, result has 5.9 percent of original size [2021-10-22 14:23:28,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 22 case distinctions, treesize of input 146 treesize of output 136 [2021-10-22 14:23:28,474 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 143 [2021-10-22 14:23:29,103 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 14:23:29,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366682150] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 14:23:29,104 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 14:23:29,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 31] total 58 [2021-10-22 14:23:29,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582508566] [2021-10-22 14:23:29,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2021-10-22 14:23:29,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 14:23:29,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-10-22 14:23:29,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=3074, Unknown=1, NotChecked=0, Total=3306 [2021-10-22 14:23:29,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 14:23:29,107 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 14:23:29,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 2.103448275862069) internal successors, (122), 58 states have internal predecessors, (122), 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 14:23:29,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-22 14:23:29,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-10-22 14:23:29,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-10-22 14:23:29,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-10-22 14:23:29,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-10-22 14:23:29,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 14:24:47,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-22 14:24:47,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-22 14:24:47,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-10-22 14:24:47,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-10-22 14:24:47,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-10-22 14:24:47,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2021-10-22 14:24:47,457 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-10-22 14:24:47,457 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-22 14:24:47,457 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-22 14:24:47,457 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-22 14:24:47,474 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 14:24:47,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 14:24:47,672 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-22 14:24:47,672 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-22 14:24:47,674 INFO L202 PluginConnector]: Adding new model vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 02:24:47 BasicIcfg [2021-10-22 14:24:47,674 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-22 14:24:47,675 INFO L168 Benchmark]: Toolchain (without parser) took 115096.27 ms. Allocated memory was 192.9 MB in the beginning and 973.1 MB in the end (delta: 780.1 MB). Free memory was 150.8 MB in the beginning and 710.3 MB in the end (delta: -559.4 MB). Peak memory consumption was 223.3 MB. Max. memory is 8.0 GB. [2021-10-22 14:24:47,675 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 192.9 MB. Free memory is still 152.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-22 14:24:47,675 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.98 ms. Allocated memory is still 192.9 MB. Free memory was 150.8 MB in the beginning and 149.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-10-22 14:24:47,675 INFO L168 Benchmark]: Boogie Preprocessor took 22.91 ms. Allocated memory is still 192.9 MB. Free memory was 149.2 MB in the beginning and 148.3 MB in the end (delta: 931.2 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-22 14:24:47,675 INFO L168 Benchmark]: RCFGBuilder took 257.87 ms. Allocated memory is still 192.9 MB. Free memory was 148.3 MB in the beginning and 135.3 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-10-22 14:24:47,676 INFO L168 Benchmark]: TraceAbstraction took 114786.81 ms. Allocated memory was 192.9 MB in the beginning and 973.1 MB in the end (delta: 780.1 MB). Free memory was 134.8 MB in the beginning and 710.3 MB in the end (delta: -575.5 MB). Peak memory consumption was 205.4 MB. Max. memory is 8.0 GB. [2021-10-22 14:24:47,677 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 0.14 ms. Allocated memory is still 192.9 MB. Free memory is still 152.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 23.98 ms. Allocated memory is still 192.9 MB. Free memory was 150.8 MB in the beginning and 149.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 22.91 ms. Allocated memory is still 192.9 MB. Free memory was 149.2 MB in the beginning and 148.3 MB in the end (delta: 931.2 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 257.87 ms. Allocated memory is still 192.9 MB. Free memory was 148.3 MB in the beginning and 135.3 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 114786.81 ms. Allocated memory was 192.9 MB in the beginning and 973.1 MB in the end (delta: 780.1 MB). Free memory was 134.8 MB in the beginning and 710.3 MB in the end (delta: -575.5 MB). Peak memory consumption was 205.4 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: 3134, positive: 2555, positive conditional: 2218, positive unconditional: 337, negative: 579, negative conditional: 579, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2555, positive: 2555, positive conditional: 0, positive unconditional: 2555, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 293, positive: 293, positive conditional: 0, positive unconditional: 293, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 293, positive: 291, positive conditional: 0, positive unconditional: 291, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 47, positive: 47, positive conditional: 0, positive unconditional: 47, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2555, positive: 2262, positive conditional: 0, positive unconditional: 2262, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 293, unknown conditional: 0, unknown unconditional: 293] , Statistics on independence cache: Total cache size (in pairs): 293, Positive cache size: 293, Positive conditional cache size: 0, Positive unconditional cache size: 293, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 579 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 112, Number of persistent set computation: 95, Number of trivial persistent sets: 24, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3134, positive: 2555, positive conditional: 2218, positive unconditional: 337, negative: 579, negative conditional: 579, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2555, positive: 2555, positive conditional: 0, positive unconditional: 2555, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 293, positive: 293, positive conditional: 0, positive unconditional: 293, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 293, positive: 291, positive conditional: 0, positive unconditional: 291, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 47, positive: 47, positive conditional: 0, positive unconditional: 47, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2555, positive: 2262, positive conditional: 0, positive unconditional: 2262, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 293, unknown conditional: 0, unknown unconditional: 293] , Statistics on independence cache: Total cache size (in pairs): 293, Positive cache size: 293, Positive conditional cache size: 0, Positive unconditional cache size: 293, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 579 - 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: 67]: 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, 43 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 114666.3ms, OverallIterations: 6, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.6ms, PartialOrderReductionTime: 81010.1ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 373, 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: 72.2ms SsaConstructionTime, 445.3ms SatisfiabilityAnalysisTime, 31057.3ms InterpolantComputationTime, 528 NumberOfCodeBlocks, 528 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 516 ConstructedInterpolants, 13 QuantifiedInterpolants, 16568 SizeOfPredicates, 24 NumberOfNonLiveVariables, 558 ConjunctsInSsa, 147 ConjunctsInUnsatCore, 12 InterpolantComputations, 0 PerfectInterpolantSequences, 169/858 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 14:24:47,710 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 14:24:47,904 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...