/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 01:49:03,459 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 01:49:03,460 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 01:49:03,522 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-04 01:49:03,528 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 01:49:03,529 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 01:49:03,530 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 01:49:03,531 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 01:49:03,531 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 01:49:03,532 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 01:49:03,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 01:49:03,535 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 01:49:03,536 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 01:49:03,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 01:49:03,542 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 01:49:03,542 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 01:49:03,544 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-04 01:49:03,550 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-04 01:49:03,550 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-04 01:49:03,551 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-04 01:49:03,559 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf [2022-03-04 01:49:03,586 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 01:49:03,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 01:49:03,586 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 01:49:03,586 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 01:49:03,586 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 01:49:03,587 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 01:49:03,587 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 01:49:03,587 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 01:49:03,587 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 01:49:03,587 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 01:49:03,587 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 01:49:03,587 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 01:49:03,587 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 01:49:03,588 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 01:49:03,588 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 01:49:03,588 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 01:49:03,588 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 01:49:03,588 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 01:49:03,588 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 01:49:03,588 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 01:49:03,588 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 01:49:03,588 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 01:49:03,588 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 01:49:03,588 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 01:49:03,588 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 01:49:03,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 01:49:03,589 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 01:49:03,589 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 01:49:03,589 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 01:49:03,589 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 01:49:03,589 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 01:49:03,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 01:49:03,589 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 01:49:03,589 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 01:49:03,589 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 01:49:03,589 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-04 01:49:03,589 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-04 01:49:03,589 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-04 01:49:03,590 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 01:49:03,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 01:49:03,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 01:49:03,829 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 01:49:03,829 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-04 01:49:03,830 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-04 01:49:03,831 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array.wvr.bpl [2022-03-04 01:49:03,832 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array.wvr.bpl' [2022-03-04 01:49:03,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 01:49:03,858 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-04 01:49:03,859 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 01:49:03,859 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 01:49:03,859 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 01:49:03,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:49:03" (1/1) ... [2022-03-04 01:49:03,872 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:49:03" (1/1) ... [2022-03-04 01:49:03,877 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-04 01:49:03,878 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 01:49:03,880 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 01:49:03,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 01:49:03,880 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 01:49:03,885 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:49:03" (1/1) ... [2022-03-04 01:49:03,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:49:03" (1/1) ... [2022-03-04 01:49:03,886 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:49:03" (1/1) ... [2022-03-04 01:49:03,886 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:49:03" (1/1) ... [2022-03-04 01:49:03,890 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:49:03" (1/1) ... [2022-03-04 01:49:03,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:49:03" (1/1) ... [2022-03-04 01:49:03,894 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:49:03" (1/1) ... [2022-03-04 01:49:03,895 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 01:49:03,896 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 01:49:03,896 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 01:49:03,896 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 01:49:03,897 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:49:03" (1/1) ... [2022-03-04 01:49:03,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 01:49:03,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:49:03,934 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 01:49:03,949 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 01:49:03,979 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-04 01:49:03,979 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-04 01:49:03,979 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-04 01:49:03,979 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-04 01:49:03,979 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-04 01:49:03,979 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-04 01:49:03,979 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-04 01:49:03,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 01:49:03,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 01:49:03,980 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-04 01:49:03,980 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-04 01:49:03,980 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-04 01:49:03,980 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 01:49:04,015 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 01:49:04,016 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 01:49:04,135 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 01:49:04,144 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 01:49:04,145 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-04 01:49:04,146 INFO L202 PluginConnector]: Adding new model sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 01:49:04 BoogieIcfgContainer [2022-03-04 01:49:04,146 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 01:49:04,147 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 01:49:04,147 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 01:49:04,177 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 01:49:04,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:49:03" (1/2) ... [2022-03-04 01:49:04,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1383681c and model type sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 01:49:04, skipping insertion in model container [2022-03-04 01:49:04,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 01:49:04" (2/2) ... [2022-03-04 01:49:04,179 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-array.wvr.bpl [2022-03-04 01:49:04,182 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 01:49:04,182 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 01:49:04,182 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 01:49:04,182 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 01:49:04,215 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-04 01:49:04,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 01:49:04,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:49:04,296 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 01:49:04,297 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 01:49:04,325 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 01:49:04,332 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=false [2022-03-04 01:49:04,332 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-04 01:49:04,708 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1682 transitions and produced 636 states. [2022-03-04 01:49:04,710 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:49:04,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:49:04,716 INFO L85 PathProgramCache]: Analyzing trace with hash -189379526, now seen corresponding path program 1 times [2022-03-04 01:49:04,722 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:49:04,722 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486553365] [2022-03-04 01:49:04,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:49:04,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:49:04,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:49:05,072 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 22 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:49:05,073 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:49:05,073 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486553365] [2022-03-04 01:49:05,074 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486553365] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:49:05,076 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778545464] [2022-03-04 01:49:05,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:49:05,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:49:05,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:49:05,092 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 01:49:05,103 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 01:49:05,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:49:05,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-04 01:49:05,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:49:05,451 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-04 01:49:05,451 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:49:05,638 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-04 01:49:05,639 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1778545464] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:49:05,639 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:49:05,639 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8, 8] total 23 [2022-03-04 01:49:05,641 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163524112] [2022-03-04 01:49:05,641 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:49:05,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-04 01:49:05,645 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:49:05,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-04 01:49:05,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-03-04 01:49:05,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:49:05,661 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:49:05,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 23 states have internal predecessors, (68), 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 01:49:05,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:49:06,198 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1693 transitions and produced 647 states. [2022-03-04 01:49:06,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:49:06,216 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-04 01:49:06,415 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 01:49:06,415 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:49:06,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:49:06,416 INFO L85 PathProgramCache]: Analyzing trace with hash 420505112, now seen corresponding path program 2 times [2022-03-04 01:49:06,416 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:49:06,416 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140863053] [2022-03-04 01:49:06,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:49:06,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:49:06,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:49:06,538 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 21 proven. 14 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-04 01:49:06,538 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:49:06,539 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140863053] [2022-03-04 01:49:06,539 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140863053] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:49:06,539 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738142389] [2022-03-04 01:49:06,539 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 01:49:06,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:49:06,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:49:06,540 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 01:49:06,548 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 01:49:06,577 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 01:49:06,578 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:49:06,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-04 01:49:06,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:49:06,760 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-03-04 01:49:06,761 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:49:06,927 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-03-04 01:49:06,927 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [738142389] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:49:06,928 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:49:06,928 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 23 [2022-03-04 01:49:06,928 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023843599] [2022-03-04 01:49:06,928 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:49:06,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-04 01:49:06,929 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:49:06,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-04 01:49:06,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2022-03-04 01:49:06,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:49:06,930 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:49:06,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.0869565217391304) internal successors, (71), 23 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 01:49:06,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:49:06,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:49:07,447 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1704 transitions and produced 658 states. [2022-03-04 01:49:07,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:49:07,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:49:07,474 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-04 01:49:07,664 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 01:49:07,664 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:49:07,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:49:07,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1890877322, now seen corresponding path program 3 times [2022-03-04 01:49:07,665 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:49:07,665 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700711212] [2022-03-04 01:49:07,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:49:07,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:49:07,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:49:07,791 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 22 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:49:07,792 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:49:07,792 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700711212] [2022-03-04 01:49:07,792 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700711212] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:49:07,795 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200527902] [2022-03-04 01:49:07,795 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 01:49:07,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:49:07,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:49:07,798 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 01:49:07,799 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 01:49:07,829 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-03-04 01:49:07,830 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:49:07,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 12 conjunts are in the unsatisfiable core [2022-03-04 01:49:07,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:49:08,056 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 11 proven. 31 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-04 01:49:08,056 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:49:08,279 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 26 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-04 01:49:08,279 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200527902] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:49:08,279 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:49:08,279 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 13] total 35 [2022-03-04 01:49:08,279 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757296137] [2022-03-04 01:49:08,279 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:49:08,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-03-04 01:49:08,280 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:49:08,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-03-04 01:49:08,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=974, Unknown=0, NotChecked=0, Total=1190 [2022-03-04 01:49:08,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:49:08,281 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:49:08,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 2.5428571428571427) internal successors, (89), 35 states have internal predecessors, (89), 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 01:49:08,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:49:08,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:49:08,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:49:08,666 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 237 transitions and produced 184 states. [2022-03-04 01:49:08,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:49:08,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:49:08,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:49:08,683 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-03-04 01:49:08,881 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 01:49:08,881 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:49:08,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:49:08,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1663662932, now seen corresponding path program 4 times [2022-03-04 01:49:08,882 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:49:08,882 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704533871] [2022-03-04 01:49:08,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:49:08,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:49:08,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:49:09,032 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 22 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:49:09,033 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:49:09,043 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704533871] [2022-03-04 01:49:09,043 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704533871] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:49:09,043 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204611437] [2022-03-04 01:49:09,043 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 01:49:09,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:49:09,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:49:09,064 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 01:49:09,065 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 01:49:09,097 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 01:49:09,097 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:49:09,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 13 conjunts are in the unsatisfiable core [2022-03-04 01:49:09,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:49:09,349 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 30 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 01:49:09,350 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:49:09,572 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 30 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 01:49:09,572 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1204611437] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:49:09,572 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:49:09,572 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 14, 14] total 35 [2022-03-04 01:49:09,573 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861473694] [2022-03-04 01:49:09,573 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:49:09,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-03-04 01:49:09,574 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:49:09,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-03-04 01:49:09,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=994, Unknown=0, NotChecked=0, Total=1190 [2022-03-04 01:49:09,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:49:09,576 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:49:09,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 2.657142857142857) internal successors, (93), 35 states have internal predecessors, (93), 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 01:49:09,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:49:09,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:49:09,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:49:09,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:49:10,188 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1726 transitions and produced 680 states. [2022-03-04 01:49:10,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:49:10,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:49:10,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:49:10,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:49:10,207 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-04 01:49:10,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:49:10,407 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:49:10,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:49:10,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1217120590, now seen corresponding path program 5 times [2022-03-04 01:49:10,408 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:49:10,408 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890781532] [2022-03-04 01:49:10,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:49:10,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:49:10,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:49:10,619 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 22 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:49:10,620 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:49:10,620 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890781532] [2022-03-04 01:49:10,620 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890781532] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:49:10,620 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708382454] [2022-03-04 01:49:10,620 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-04 01:49:10,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:49:10,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:49:10,622 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 01:49:10,623 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 01:49:10,658 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-03-04 01:49:10,659 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:49:10,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 17 conjunts are in the unsatisfiable core [2022-03-04 01:49:10,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:49:10,996 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 22 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:49:10,997 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:49:11,347 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 34 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:49:11,348 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1708382454] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:49:11,348 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:49:11,348 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 47 [2022-03-04 01:49:11,349 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002705494] [2022-03-04 01:49:11,349 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:49:11,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-03-04 01:49:11,350 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:49:11,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-03-04 01:49:11,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=404, Invalid=1758, Unknown=0, NotChecked=0, Total=2162 [2022-03-04 01:49:11,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:49:11,352 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:49:11,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 2.382978723404255) internal successors, (112), 47 states have internal predecessors, (112), 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 01:49:11,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:49:11,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:49:11,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:49:11,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:49:11,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:49:11,882 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 270 transitions and produced 215 states. [2022-03-04 01:49:11,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:49:11,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:49:11,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:49:11,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:49:11,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 01:49:11,917 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 01:49:12,102 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 01:49:12,102 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:49:12,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:49:12,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1818267922, now seen corresponding path program 6 times [2022-03-04 01:49:12,103 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:49:12,103 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761503699] [2022-03-04 01:49:12,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:49:12,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:49:12,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:49:13,141 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 6 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:49:13,142 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:49:13,142 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761503699] [2022-03-04 01:49:13,142 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761503699] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:49:13,142 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459642790] [2022-03-04 01:49:13,142 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-04 01:49:13,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:49:13,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:49:13,143 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 01:49:13,144 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 01:49:13,176 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2022-03-04 01:49:13,177 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:49:13,178 WARN L261 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 78 conjunts are in the unsatisfiable core [2022-03-04 01:49:13,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:49:14,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:49:14,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:49:14,465 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:14,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:49:14,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:49:14,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:49:14,468 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:14,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:49:14,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:49:14,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:49:14,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:49:14,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:49:14,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:49:14,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:49:14,473 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:14,478 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 28 disjoint index pairs (out of 55 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 37 [2022-03-04 01:49:14,575 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:49:14,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:49:16,166 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,166 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,167 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,167 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,167 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,168 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,169 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,170 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,170 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:49:16,176 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,176 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,178 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,179 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,179 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,179 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,180 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,180 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,181 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,182 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,183 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:49:16,185 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,185 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,186 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,186 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,188 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,188 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,189 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,190 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,190 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,192 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,192 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,194 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,194 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,195 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,196 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,197 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,199 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:49:16,203 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,204 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,205 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,205 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,206 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,207 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,209 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:16,429 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 01:49:16,429 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 38 disjoint index pairs (out of 120 index pairs), introduced 13 new quantified variables, introduced 55 case distinctions, treesize of input 79 treesize of output 460 [2022-03-04 01:49:20,804 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,804 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,805 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,805 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,805 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,806 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,806 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,806 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,807 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,807 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,807 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,808 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:49:20,809 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,809 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,809 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,810 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,810 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,810 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,810 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,811 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,811 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,811 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,812 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,812 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,812 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,813 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,813 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,813 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,813 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,814 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,814 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,814 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,815 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,815 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:49:20,816 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,816 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,817 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,817 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:49:20,818 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,818 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,818 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,819 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,819 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,819 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,820 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,820 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,820 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,820 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,821 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:49:20,822 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,822 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,822 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:49:20,823 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:49:20,824 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,824 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:20,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:49:20,826 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 28 disjoint index pairs (out of 120 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 3 [2022-03-04 01:49:21,007 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:49:21,007 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459642790] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:49:21,007 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:49:21,007 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 25, 26] total 65 [2022-03-04 01:49:21,007 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424400392] [2022-03-04 01:49:21,007 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:49:21,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2022-03-04 01:49:21,008 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:49:21,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2022-03-04 01:49:21,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=567, Invalid=3593, Unknown=0, NotChecked=0, Total=4160 [2022-03-04 01:49:21,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:49:21,009 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:49:21,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 2.0153846153846153) internal successors, (131), 65 states have internal predecessors, (131), 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 01:49:21,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:49:21,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:49:21,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:49:21,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:49:21,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 01:49:21,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:49:51,766 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1959 transitions and produced 866 states. [2022-03-04 01:49:51,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:49:51,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:49:51,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:49:51,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:49:51,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 01:49:51,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-03-04 01:49:51,799 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 01:49:51,967 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 01:49:51,968 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:49:51,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:49:51,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1140115618, now seen corresponding path program 7 times [2022-03-04 01:49:51,968 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:49:51,968 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871480511] [2022-03-04 01:49:51,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:49:51,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:49:51,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:49:52,197 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 74 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:49:52,197 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:49:52,197 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871480511] [2022-03-04 01:49:52,197 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871480511] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:49:52,197 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916150240] [2022-03-04 01:49:52,197 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-04 01:49:52,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:49:52,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:49:52,200 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 01:49:52,201 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 01:49:52,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:49:52,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 22 conjunts are in the unsatisfiable core [2022-03-04 01:49:52,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:49:52,623 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 62 proven. 92 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-04 01:49:52,623 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:49:52,916 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 73 proven. 81 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-04 01:49:52,916 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916150240] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:49:52,916 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:49:52,916 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 23, 23] total 59 [2022-03-04 01:49:52,916 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766242478] [2022-03-04 01:49:52,916 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:49:52,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2022-03-04 01:49:52,917 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:49:52,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2022-03-04 01:49:52,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=599, Invalid=2823, Unknown=0, NotChecked=0, Total=3422 [2022-03-04 01:49:52,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:49:52,918 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:49:52,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 2.288135593220339) internal successors, (135), 59 states have internal predecessors, (135), 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 01:49:52,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:49:52,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:49:52,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:49:52,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:49:52,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 01:49:52,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 196 states. [2022-03-04 01:49:52,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:49:53,511 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 411 transitions and produced 309 states. [2022-03-04 01:49:53,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:49:53,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:49:53,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:49:53,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:49:53,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 01:49:53,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-03-04 01:49:53,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-04 01:49:53,534 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 01:49:53,719 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 01:49:53,719 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:49:53,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:49:53,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1271732028, now seen corresponding path program 8 times [2022-03-04 01:49:53,720 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:49:53,721 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131977129] [2022-03-04 01:49:53,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:49:53,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:49:53,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:49:53,976 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 74 proven. 111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:49:53,976 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:49:53,976 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131977129] [2022-03-04 01:49:53,976 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131977129] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:49:53,976 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451414399] [2022-03-04 01:49:53,976 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 01:49:53,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:49:53,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:49:53,984 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 01:49:53,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-04 01:49:54,035 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 01:49:54,035 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:49:54,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 24 conjunts are in the unsatisfiable core [2022-03-04 01:49:54,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:49:54,456 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 68 proven. 111 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-04 01:49:54,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:49:54,945 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 79 proven. 100 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-04 01:49:54,945 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [451414399] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:49:54,945 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:49:54,945 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 25, 25] total 62 [2022-03-04 01:49:54,945 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554538925] [2022-03-04 01:49:54,946 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:49:54,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-03-04 01:49:54,946 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:49:54,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-03-04 01:49:54,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=669, Invalid=3113, Unknown=0, NotChecked=0, Total=3782 [2022-03-04 01:49:54,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:49:54,947 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:49:54,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 2.274193548387097) internal successors, (141), 62 states have internal predecessors, (141), 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 01:49:54,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:49:54,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:49:54,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:49:54,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:49:54,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 01:49:54,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 196 states. [2022-03-04 01:49:54,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-03-04 01:49:54,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:49:55,540 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 422 transitions and produced 320 states. [2022-03-04 01:49:55,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:49:55,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:49:55,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:49:55,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:49:55,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 01:49:55,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-03-04 01:49:55,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-04 01:49:55,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-04 01:49:55,573 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-04 01:49:55,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:49:55,758 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:49:55,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:49:55,758 INFO L85 PathProgramCache]: Analyzing trace with hash -225020006, now seen corresponding path program 9 times [2022-03-04 01:49:55,758 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:49:55,759 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859430533] [2022-03-04 01:49:55,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:49:55,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:49:55,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:49:56,006 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 74 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:49:56,006 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:49:56,006 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859430533] [2022-03-04 01:49:56,007 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859430533] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:49:56,007 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525933356] [2022-03-04 01:49:56,007 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 01:49:56,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:49:56,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:49:56,008 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 01:49:56,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-04 01:49:56,064 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2022-03-04 01:49:56,064 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:49:56,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 27 conjunts are in the unsatisfiable core [2022-03-04 01:49:56,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:49:56,514 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 74 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:49:56,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:49:57,038 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 85 proven. 121 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:49:57,038 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525933356] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:49:57,038 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:49:57,038 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 67 [2022-03-04 01:49:57,038 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297996934] [2022-03-04 01:49:57,038 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:49:57,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-03-04 01:49:57,039 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:49:57,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-03-04 01:49:57,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=799, Invalid=3623, Unknown=0, NotChecked=0, Total=4422 [2022-03-04 01:49:57,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:49:57,041 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:49:57,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 2.2686567164179103) internal successors, (152), 67 states have internal predecessors, (152), 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 01:49:57,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:49:57,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:49:57,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:49:57,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:49:57,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 01:49:57,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 196 states. [2022-03-04 01:49:57,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-03-04 01:49:57,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2022-03-04 01:49:57,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:49:57,791 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 444 transitions and produced 340 states. [2022-03-04 01:49:57,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:49:57,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:49:57,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:49:57,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:49:57,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 01:49:57,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-03-04 01:49:57,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-04 01:49:57,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-04 01:49:57,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 01:49:57,809 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-03-04 01:49:58,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-03-04 01:49:58,008 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:49:58,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:49:58,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1959737814, now seen corresponding path program 10 times [2022-03-04 01:49:58,008 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:49:58,008 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875550530] [2022-03-04 01:49:58,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:49:58,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:49:58,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:49:59,610 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 24 proven. 230 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:49:59,610 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:49:59,610 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875550530] [2022-03-04 01:49:59,611 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875550530] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:49:59,611 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33763383] [2022-03-04 01:49:59,611 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 01:49:59,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:49:59,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:49:59,612 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 01:49:59,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-04 01:49:59,651 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 01:49:59,651 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:49:59,652 WARN L261 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 112 conjunts are in the unsatisfiable core [2022-03-04 01:49:59,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:50:01,458 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,473 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,482 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,482 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,489 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,502 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,504 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,507 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 20 select indices, 20 select index equivalence classes, 78 disjoint index pairs (out of 190 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 38 [2022-03-04 01:50:01,552 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 0 proven. 254 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:50:01,552 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:50:04,364 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:04,364 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:04,365 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:04,365 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:04,365 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:04,365 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:04,366 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:04,366 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:04,366 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:04,366 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:04,366 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:04,367 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:04,367 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:04,367 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:04,367 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:15,134 WARN L228 SmtUtils]: Spent 10.76s on a formula simplification. DAG size of input: 1305 DAG size of output: 909 (called from [L 350] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-03-04 01:50:15,136 INFO L353 Elim1Store]: treesize reduction 1508, result has 57.9 percent of original size [2022-03-04 01:50:15,137 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 26 select indices, 26 select index equivalence classes, 15 disjoint index pairs (out of 325 index pairs), introduced 26 new quantified variables, introduced 310 case distinctions, treesize of input 130 treesize of output 2105 Received shutdown request... [2022-03-04 02:03:30,889 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 02:03:30,889 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 02:03:30,889 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 02:03:30,950 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-03-04 02:03:30,952 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-03-04 02:03:30,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-04 02:03:31,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-03-04 02:03:31,168 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 71 with TraceHistMax 13,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 37ms.. [2022-03-04 02:03:31,169 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-04 02:03:31,169 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-04 02:03:31,169 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-04 02:03:31,172 INFO L732 BasicCegarLoop]: Path program histogram: [10] [2022-03-04 02:03:31,173 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 02:03:31,174 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 02:03:31,175 INFO L202 PluginConnector]: Adding new model sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 02:03:31 BasicIcfg [2022-03-04 02:03:31,175 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 02:03:31,175 INFO L158 Benchmark]: Toolchain (without parser) took 867317.68ms. Allocated memory was 196.1MB in the beginning and 1.0GB in the end (delta: 833.6MB). Free memory was 154.1MB in the beginning and 504.7MB in the end (delta: -350.6MB). Peak memory consumption was 682.2MB. Max. memory is 8.0GB. [2022-03-04 02:03:31,175 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.54ms. Allocated memory is still 196.1MB. Free memory is still 155.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 02:03:31,176 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.88ms. Allocated memory is still 196.1MB. Free memory was 154.0MB in the beginning and 152.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 02:03:31,176 INFO L158 Benchmark]: Boogie Preprocessor took 15.68ms. Allocated memory is still 196.1MB. Free memory was 152.4MB in the beginning and 151.5MB in the end (delta: 919.9kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 02:03:31,176 INFO L158 Benchmark]: RCFGBuilder took 249.96ms. Allocated memory is still 196.1MB. Free memory was 151.5MB in the beginning and 142.2MB in the end (delta: 9.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-04 02:03:31,176 INFO L158 Benchmark]: TraceAbstraction took 867027.67ms. Allocated memory was 196.1MB in the beginning and 1.0GB in the end (delta: 833.6MB). Free memory was 141.7MB in the beginning and 504.7MB in the end (delta: -363.1MB). Peak memory consumption was 669.6MB. Max. memory is 8.0GB. [2022-03-04 02:03:31,177 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 0.54ms. Allocated memory is still 196.1MB. Free memory is still 155.1MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 19.88ms. Allocated memory is still 196.1MB. Free memory was 154.0MB in the beginning and 152.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.68ms. Allocated memory is still 196.1MB. Free memory was 152.4MB in the beginning and 151.5MB in the end (delta: 919.9kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 249.96ms. Allocated memory is still 196.1MB. Free memory was 151.5MB in the beginning and 142.2MB in the end (delta: 9.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 867027.67ms. Allocated memory was 196.1MB in the beginning and 1.0GB in the end (delta: 833.6MB). Free memory was 141.7MB in the beginning and 504.7MB in the end (delta: -363.1MB). Peak memory consumption was 669.6MB. 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: 65]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 71 with TraceHistMax 13,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 37ms.. - TimeoutResultAtElement [Line: 58]: 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 71 with TraceHistMax 13,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 37ms.. - TimeoutResultAtElement [Line: 59]: 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 71 with TraceHistMax 13,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 37ms.. - TimeoutResultAtElement [Line: 58]: 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 71 with TraceHistMax 13,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 37ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 42 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 866.9s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 35.6s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 498, 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, 0.3s SatisfiabilityAnalysisTime, 15.3s InterpolantComputationTime, 904 NumberOfCodeBlocks, 904 NumberOfCodeBlocksAsserted, 50 NumberOfCheckSat, 1329 ConstructedInterpolants, 1 QuantifiedInterpolants, 15896 SizeOfPredicates, 66 NumberOfNonLiveVariables, 1139 ConjunctsInSsa, 209 ConjunctsInUnsatCore, 27 InterpolantComputations, 0 PerfectInterpolantSequences, 1135/2745 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 [2022-03-04 02:03:31,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0