/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/vector-add.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 06:36:55,188 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 06:36:55,190 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 06:36:55,233 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-04 06:36:55,251 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 06:36:55,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 06:36:55,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 06:36:55,256 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 06:36:55,257 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 06:36:55,257 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 06:36:55,259 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 06:36:55,264 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 06:36:55,265 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 06:36:55,266 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 06:36:55,268 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 06:36:55,269 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 06:36:55,275 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-04 06:36:55,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-04 06:36:55,283 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-04 06:36:55,283 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-04 06:36:55,284 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt.epf [2022-03-04 06:36:55,312 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 06:36:55,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 06:36:55,313 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 06:36:55,313 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 06:36:55,314 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 06:36:55,314 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 06:36:55,315 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 06:36:55,315 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 06:36:55,315 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 06:36:55,315 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 06:36:55,316 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 06:36:55,316 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 06:36:55,316 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 06:36:55,316 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 06:36:55,316 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 06:36:55,316 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 06:36:55,316 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 06:36:55,316 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 06:36:55,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 06:36:55,317 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 06:36:55,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 06:36:55,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 06:36:55,317 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 06:36:55,317 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 06:36:55,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 06:36:55,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 06:36:55,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 06:36:55,319 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 06:36:55,319 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 06:36:55,319 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 06:36:55,319 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 06:36:55,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 06:36:55,319 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 06:36:55,319 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 06:36:55,319 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 06:36:55,320 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-04 06:36:55,320 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-04 06:36:55,320 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 06:36:55,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 06:36:55,564 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 06:36:55,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 06:36:55,567 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-04 06:36:55,568 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-04 06:36:55,569 INFO L432 ainManager$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 [2022-03-04 06:36:55,569 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/vector-add.wvr.bpl' [2022-03-04 06:36:55,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 06:36:55,594 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-04 06:36:55,594 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 06:36:55,594 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 06:36:55,595 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 06:36:55,605 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 04.03 06:36:55" (1/1) ... [2022-03-04 06:36:55,611 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 04.03 06:36:55" (1/1) ... [2022-03-04 06:36:55,615 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-04 06:36:55,616 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 06:36:55,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 06:36:55,618 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 06:36:55,618 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 06:36:55,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:36:55" (1/1) ... [2022-03-04 06:36:55,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:36:55" (1/1) ... [2022-03-04 06:36:55,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:36:55" (1/1) ... [2022-03-04 06:36:55,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:36:55" (1/1) ... [2022-03-04 06:36:55,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:36:55" (1/1) ... [2022-03-04 06:36:55,631 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:36:55" (1/1) ... [2022-03-04 06:36:55,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:36:55" (1/1) ... [2022-03-04 06:36:55,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 06:36:55,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 06:36:55,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 06:36:55,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 06:36:55,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:36:55" (1/1) ... [2022-03-04 06:36:55,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 06:36:55,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:36:55,665 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-04 06:36:55,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-04 06:36:55,709 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-04 06:36:55,710 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-04 06:36:55,710 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-04 06:36:55,710 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-04 06:36:55,710 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-04 06:36:55,710 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-04 06:36:55,710 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-04 06:36:55,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 06:36:55,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 06:36:55,711 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-04 06:36:55,711 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-04 06:36:55,711 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-04 06:36:55,712 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-04 06:36:55,757 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 06:36:55,761 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 06:36:55,842 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 06:36:55,855 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 06:36:55,856 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-04 06:36:55,857 INFO L202 PluginConnector]: Adding new model vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 06:36:55 BoogieIcfgContainer [2022-03-04 06:36:55,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 06:36:55,859 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 06:36:55,859 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 06:36:55,862 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 06:36:55,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:36:55" (1/2) ... [2022-03-04 06:36:55,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6893f324 and model type vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:36:55, skipping insertion in model container [2022-03-04 06:36:55,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 06:36:55" (2/2) ... [2022-03-04 06:36:55,865 INFO L111 eAbstractionObserver]: Analyzing ICFG vector-add.wvr.bpl [2022-03-04 06:36:55,869 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 06:36:55,869 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 06:36:55,869 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 06:36:55,869 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 06:36:55,911 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-04 06:36:55,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 06:36:55,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:36:56,016 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-04 06:36:56,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-04 06:36:56,062 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 06:36:56,075 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=true [2022-03-04 06:36:56,090 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-04 06:36:56,264 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1044 transitions and produced 446 states. [2022-03-04 06:36:56,266 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 06:36:56,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:36:56,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1203110394, now seen corresponding path program 1 times [2022-03-04 06:36:56,289 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:36:56,289 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213840895] [2022-03-04 06:36:56,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:36:56,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:36:56,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:36:56,712 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 46 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 06:36:56,713 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:36:56,713 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213840895] [2022-03-04 06:36:56,714 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213840895] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:36:56,714 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75444240] [2022-03-04 06:36:56,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:36:56,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:36:56,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:36:56,719 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 06:36:56,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-04 06:36:56,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:36:56,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-04 06:36:56,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:36:57,082 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-03-04 06:36:57,083 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:36:57,324 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-03-04 06:36:57,325 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [75444240] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:36:57,325 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:36:57,325 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 8, 8] total 26 [2022-03-04 06:36:57,327 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578173505] [2022-03-04 06:36:57,328 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:36:57,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-04 06:36:57,334 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:36:57,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-04 06:36:57,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=538, Unknown=0, NotChecked=0, Total=650 [2022-03-04 06:36:57,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:36:57,365 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:36:57,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.9615384615384617) internal successors, (77), 26 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 06:36:57,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:36:57,847 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1055 transitions and produced 457 states. [2022-03-04 06:36:57,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 06:36:57,872 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-04 06:36:58,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-03-04 06:36:58,068 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 06:36:58,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:36:58,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1215217316, now seen corresponding path program 2 times [2022-03-04 06:36:58,069 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:36:58,069 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807707991] [2022-03-04 06:36:58,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:36:58,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:36:58,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:36:58,343 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 46 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 06:36:58,343 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:36:58,344 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807707991] [2022-03-04 06:36:58,344 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807707991] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:36:58,345 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301976677] [2022-03-04 06:36:58,345 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 06:36:58,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:36:58,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:36:58,347 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 06:36:58,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-04 06:36:58,399 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 06:36:58,399 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:36:58,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-04 06:36:58,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:36:58,665 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 29 proven. 9 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-03-04 06:36:58,666 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:36:58,888 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 29 proven. 9 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-03-04 06:36:58,888 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301976677] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:36:58,889 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:36:58,889 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 10, 10] total 30 [2022-03-04 06:36:58,890 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548813242] [2022-03-04 06:36:58,890 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:36:58,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-04 06:36:58,892 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:36:58,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-04 06:36:58,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=728, Unknown=0, NotChecked=0, Total=870 [2022-03-04 06:36:58,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:36:58,894 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:36:58,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.8333333333333335) internal successors, (85), 30 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 06:36:58,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 06:36:58,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:36:59,330 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1066 transitions and produced 468 states. [2022-03-04 06:36:59,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 06:36:59,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:36:59,347 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-04 06:36:59,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:36:59,532 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 06:36:59,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:36:59,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1650839490, now seen corresponding path program 3 times [2022-03-04 06:36:59,532 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:36:59,533 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324702765] [2022-03-04 06:36:59,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:36:59,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:36:59,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:36:59,726 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 52 proven. 23 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-04 06:36:59,727 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:36:59,727 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324702765] [2022-03-04 06:36:59,727 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324702765] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:36:59,727 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1655177876] [2022-03-04 06:36:59,727 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 06:36:59,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:36:59,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:36:59,729 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 06:36:59,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-04 06:36:59,781 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2022-03-04 06:36:59,781 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:36:59,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 12 conjunts are in the unsatisfiable core [2022-03-04 06:36:59,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:36:59,992 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 52 proven. 23 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-04 06:36:59,992 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:37:00,235 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 59 proven. 16 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-04 06:37:00,236 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1655177876] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:37:00,236 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:37:00,236 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 26 [2022-03-04 06:37:00,236 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968230574] [2022-03-04 06:37:00,237 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:37:00,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-04 06:37:00,237 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:37:00,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-04 06:37:00,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=505, Unknown=0, NotChecked=0, Total=650 [2022-03-04 06:37:00,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:37:00,238 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:37:00,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.923076923076923) internal successors, (76), 26 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 06:37:00,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 06:37:00,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:37:00,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:37:00,628 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 280 transitions and produced 220 states. [2022-03-04 06:37:00,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 06:37:00,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:37:00,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 06:37:00,656 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-04 06:37:00,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:37:00,830 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 06:37:00,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:37:00,831 INFO L85 PathProgramCache]: Analyzing trace with hash -623046304, now seen corresponding path program 4 times [2022-03-04 06:37:00,831 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:37:00,831 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914497856] [2022-03-04 06:37:00,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:37:00,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:37:00,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:37:01,064 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 46 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 06:37:01,065 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:37:01,065 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914497856] [2022-03-04 06:37:01,065 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914497856] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:37:01,065 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [790490541] [2022-03-04 06:37:01,065 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 06:37:01,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:37:01,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:37:01,067 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 06:37:01,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-04 06:37:01,125 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 06:37:01,125 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:37:01,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 13 conjunts are in the unsatisfiable core [2022-03-04 06:37:01,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:37:01,446 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 50 proven. 25 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-03-04 06:37:01,446 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:37:01,720 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 50 proven. 25 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-03-04 06:37:01,721 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [790490541] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:37:01,721 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:37:01,721 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 14, 14] total 38 [2022-03-04 06:37:01,721 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002495662] [2022-03-04 06:37:01,722 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:37:01,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-03-04 06:37:01,723 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:37:01,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-03-04 06:37:01,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=1183, Unknown=0, NotChecked=0, Total=1406 [2022-03-04 06:37:01,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:37:01,725 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:37:01,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.710526315789474) internal successors, (103), 38 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 06:37:01,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 06:37:01,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:37:01,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 06:37:01,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:37:02,339 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1088 transitions and produced 490 states. [2022-03-04 06:37:02,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 06:37:02,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:37:02,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 06:37:02,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 06:37:02,362 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-04 06:37:02,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:37:02,547 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 06:37:02,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:37:02,548 INFO L85 PathProgramCache]: Analyzing trace with hash 311059326, now seen corresponding path program 5 times [2022-03-04 06:37:02,548 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:37:02,548 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274910950] [2022-03-04 06:37:02,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:37:02,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:37:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:37:02,779 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 46 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 06:37:02,780 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:37:02,780 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274910950] [2022-03-04 06:37:02,780 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274910950] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:37:02,784 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140031085] [2022-03-04 06:37:02,784 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-04 06:37:02,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:37:02,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:37:02,788 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 06:37:02,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-04 06:37:02,865 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2022-03-04 06:37:02,865 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:37:02,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 17 conjunts are in the unsatisfiable core [2022-03-04 06:37:02,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:37:03,276 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 40 proven. 57 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 06:37:03,276 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:37:03,687 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 61 proven. 36 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 06:37:03,687 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140031085] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:37:03,687 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:37:03,688 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 18, 18] total 49 [2022-03-04 06:37:03,688 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670485321] [2022-03-04 06:37:03,688 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:37:03,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-03-04 06:37:03,689 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:37:03,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-03-04 06:37:03,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=433, Invalid=1919, Unknown=0, NotChecked=0, Total=2352 [2022-03-04 06:37:03,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:37:03,691 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:37:03,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 2.5714285714285716) internal successors, (126), 49 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 06:37:03,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 06:37:03,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:37:03,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 06:37:03,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 06:37:03,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:37:04,310 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 313 transitions and produced 251 states. [2022-03-04 06:37:04,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 06:37:04,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:37:04,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 06:37:04,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 06:37:04,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-04 06:37:04,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-04 06:37:04,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:37:04,511 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 06:37:04,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:37:04,512 INFO L85 PathProgramCache]: Analyzing trace with hash 847690042, now seen corresponding path program 6 times [2022-03-04 06:37:04,512 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:37:04,512 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904219475] [2022-03-04 06:37:04,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:37:04,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:37:04,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:37:04,775 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 46 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 06:37:04,776 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:37:04,776 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904219475] [2022-03-04 06:37:04,776 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904219475] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:37:04,776 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720198820] [2022-03-04 06:37:04,776 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-04 06:37:04,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:37:04,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:37:04,777 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 06:37:04,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-04 06:37:04,852 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2022-03-04 06:37:04,852 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:37:04,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 22 conjunts are in the unsatisfiable core [2022-03-04 06:37:04,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:37:05,385 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 46 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 06:37:05,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:37:06,090 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 65 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 06:37:06,091 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720198820] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:37:06,091 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:37:06,091 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 63 [2022-03-04 06:37:06,091 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822490256] [2022-03-04 06:37:06,091 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:37:06,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2022-03-04 06:37:06,092 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:37:06,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2022-03-04 06:37:06,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=729, Invalid=3177, Unknown=0, NotChecked=0, Total=3906 [2022-03-04 06:37:06,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:37:06,094 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:37:06,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 2.3015873015873014) internal successors, (145), 63 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 06:37:06,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 06:37:06,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:37:06,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 06:37:06,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 06:37:06,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-04 06:37:06,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:37:06,930 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 346 transitions and produced 282 states. [2022-03-04 06:37:06,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 06:37:06,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:37:06,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 06:37:06,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 06:37:06,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-04 06:37:06,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-04 06:37:06,950 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-04 06:37:07,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:37:07,144 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 06:37:07,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:37:07,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1541040748, now seen corresponding path program 7 times [2022-03-04 06:37:07,144 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:37:07,144 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85886082] [2022-03-04 06:37:07,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:37:07,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:37:07,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:37:19,560 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 28 proven. 158 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 06:37:19,560 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:37:19,560 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85886082] [2022-03-04 06:37:19,560 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85886082] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:37:19,561 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627453782] [2022-03-04 06:37:19,561 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-04 06:37:19,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:37:19,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:37:19,566 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 06:37:19,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-04 06:37:19,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:37:19,632 WARN L261 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 115 conjunts are in the unsatisfiable core [2022-03-04 06:37:19,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:37:21,558 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 55 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 133 [2022-03-04 06:37:21,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:21,898 INFO L387 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 [2022-03-04 06:37:22,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:22,355 INFO L353 Elim1Store]: treesize reduction 62, result has 17.3 percent of original size [2022-03-04 06:37:22,356 INFO L387 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 47 treesize of output 52 [2022-03-04 06:37:22,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:22,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:22,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:22,642 INFO L353 Elim1Store]: treesize reduction 57, result has 10.9 percent of original size [2022-03-04 06:37:22,643 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 72 [2022-03-04 06:37:22,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:22,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:22,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:22,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:22,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:22,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:23,012 INFO L353 Elim1Store]: treesize reduction 69, result has 9.2 percent of original size [2022-03-04 06:37:23,012 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 81 treesize of output 92 [2022-03-04 06:37:23,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:23,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:23,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:23,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:23,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:23,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:23,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:23,504 INFO L353 Elim1Store]: treesize reduction 176, result has 13.3 percent of original size [2022-03-04 06:37:23,505 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 98 treesize of output 112 [2022-03-04 06:37:23,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:23,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:23,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:23,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:23,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:23,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:23,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:23,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:23,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:23,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:23,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:23,875 INFO L353 Elim1Store]: treesize reduction 160, result has 8.6 percent of original size [2022-03-04 06:37:23,876 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 115 treesize of output 132 [2022-03-04 06:37:24,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:24,336 INFO L353 Elim1Store]: treesize reduction 152, result has 9.0 percent of original size [2022-03-04 06:37:24,336 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 16 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 102 treesize of output 122 [2022-03-04 06:37:25,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,137 INFO L387 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 119 treesize of output 142 [2022-03-04 06:37:25,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:25,498 INFO L387 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 130 treesize of output 156 [2022-03-04 06:37:26,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,429 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:26,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,433 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:26,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,446 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:26,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,448 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:26,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,451 INFO L387 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 11 new quantified variables, introduced 0 case distinctions, treesize of input 262 treesize of output 212 [2022-03-04 06:37:26,458 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:26,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,461 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:26,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,467 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:26,468 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:26,469 INFO L387 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 4 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 36 [2022-03-04 06:37:26,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:26,499 INFO L387 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 85 treesize of output 114 [2022-03-04 06:37:26,869 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 06:37:26,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:37:36,529 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:36,530 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:36,530 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:36,531 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:36,531 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:36,532 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:36,532 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:36,532 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:36,533 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:36,533 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:36,534 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:36,534 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:36,534 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:36,535 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:36,535 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:36,535 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:36,536 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:36,536 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:36,536 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:36,537 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:36,537 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,260 WARN L228 SmtUtils]: Spent 5.72s on a formula simplification. DAG size of input: 895 DAG size of output: 651 (called from [L 350] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-03-04 06:37:42,263 INFO L353 Elim1Store]: treesize reduction 946, result has 60.7 percent of original size [2022-03-04 06:37:42,264 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 22 select indices, 22 select index equivalence classes, 21 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 210 case distinctions, treesize of input 319 treesize of output 1698 [2022-03-04 06:37:42,434 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,435 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,435 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,437 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,439 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,441 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,441 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,441 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,442 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,444 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,459 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,461 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,467 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,470 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,472 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,472 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,477 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,490 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,492 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,495 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,496 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,498 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,499 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,501 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,502 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,502 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,502 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,504 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,511 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,513 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,515 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,517 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,517 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,518 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,518 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,520 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,528 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,530 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,532 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,532 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,533 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,533 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,535 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,556 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,558 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,562 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,564 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,565 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,565 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,565 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,567 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,574 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,579 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,581 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,583 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,584 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,585 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,586 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,586 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,586 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,588 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,597 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,600 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,601 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,601 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,602 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,602 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,602 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,604 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,609 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,609 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,611 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,616 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,617 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,624 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,632 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,633 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,633 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,640 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,643 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,643 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,646 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:42,646 INFO L244 Elim1Store]: Index analysis took 215 ms [2022-03-04 06:37:46,150 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 06:37:46,151 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 22 select indices, 22 select index equivalence classes, 82 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 149 case distinctions, treesize of input 237 treesize of output 1856 Received shutdown request... [2022-03-04 06:50:41,033 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-03-04 06:50:41,035 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-03-04 06:50:41,043 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 06:50:41,044 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 06:50:41,043 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 06:50:41,051 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-03-04 06:50:41,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-03-04 06:50:41,236 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 64 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 7ms.. [2022-03-04 06:50:41,237 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-04 06:50:41,237 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-04 06:50:41,238 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-04 06:50:41,244 INFO L732 BasicCegarLoop]: Path program histogram: [7] [2022-03-04 06:50:41,246 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 06:50:41,246 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 06:50:41,248 INFO L202 PluginConnector]: Adding new model vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 06:50:41 BasicIcfg [2022-03-04 06:50:41,249 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 06:50:41,249 INFO L158 Benchmark]: Toolchain (without parser) took 825655.36ms. Allocated memory was 186.6MB in the beginning and 787.5MB in the end (delta: 600.8MB). Free memory was 142.7MB in the beginning and 716.7MB in the end (delta: -574.0MB). Peak memory consumption was 484.0MB. Max. memory is 8.0GB. [2022-03-04 06:50:41,249 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.15ms. Allocated memory is still 186.6MB. Free memory is still 143.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 06:50:41,250 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.37ms. Allocated memory is still 186.6MB. Free memory was 142.6MB in the beginning and 141.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-04 06:50:41,250 INFO L158 Benchmark]: Boogie Preprocessor took 18.57ms. Allocated memory is still 186.6MB. Free memory was 141.1MB in the beginning and 140.1MB in the end (delta: 964.6kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 06:50:41,252 INFO L158 Benchmark]: RCFGBuilder took 220.03ms. Allocated memory is still 186.6MB. Free memory was 140.1MB in the beginning and 130.6MB in the end (delta: 9.5MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-04 06:50:41,254 INFO L158 Benchmark]: TraceAbstraction took 825389.43ms. Allocated memory was 186.6MB in the beginning and 787.5MB in the end (delta: 600.8MB). Free memory was 130.0MB in the beginning and 716.7MB in the end (delta: -586.7MB). Peak memory consumption was 471.5MB. Max. memory is 8.0GB. [2022-03-04 06:50:41,258 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 0.15ms. Allocated memory is still 186.6MB. Free memory is still 143.8MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 22.37ms. Allocated memory is still 186.6MB. Free memory was 142.6MB in the beginning and 141.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.57ms. Allocated memory is still 186.6MB. Free memory was 141.1MB in the beginning and 140.1MB in the end (delta: 964.6kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 220.03ms. Allocated memory is still 186.6MB. Free memory was 140.1MB in the beginning and 130.6MB in the end (delta: 9.5MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 825389.43ms. Allocated memory was 186.6MB in the beginning and 787.5MB in the end (delta: 600.8MB). Free memory was 130.0MB in the beginning and 716.7MB in the end (delta: -586.7MB). Peak memory consumption was 471.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, 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: 0, positive: 0, positive conditional: 0, positive unconditional: 0, 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: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 67]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 64 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 7ms.. - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 64 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 7ms.. - TimeoutResultAtElement [Line: 61]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 64 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 7ms.. - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 64 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 7ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 43 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 825.3s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 3.5s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 184, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 604 NumberOfCodeBlocks, 602 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 888 ConstructedInterpolants, 0 QuantifiedInterpolants, 4954 SizeOfPredicates, 36 NumberOfNonLiveVariables, 816 ConjunctsInSsa, 80 ConjunctsInUnsatCore, 18 InterpolantComputations, 0 PerfectInterpolantSequences, 1021/1632 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown