/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-hom.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 01:49:03,544 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 01:49:03,545 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 01:49:03,595 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-04 01:49:03,607 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 01:49:03,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 01:49:03,609 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 01:49:03,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 01:49:03,612 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 01:49:03,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 01:49:03,617 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 01:49:03,620 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 01:49:03,620 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 01:49:03,622 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 01:49:03,623 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 01:49:03,624 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 01:49:03,628 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-04 01:49:03,632 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-04 01:49:03,632 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-04 01:49:03,633 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-04 01:49:03,636 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 01:49:03,661 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 01:49:03,661 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 01:49:03,661 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 01:49:03,661 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 01:49:03,662 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 01:49:03,662 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 01:49:03,662 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 01:49:03,663 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 01:49:03,663 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 01:49:03,663 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 01:49:03,663 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 01:49:03,664 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 01:49:03,664 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 01:49:03,664 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 01:49:03,664 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 01:49:03,664 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 01:49:03,664 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 01:49:03,664 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 01:49:03,664 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 01:49:03,664 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 01:49:03,664 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 01:49:03,664 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 01:49:03,664 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 01:49:03,665 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 01:49:03,665 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 01:49:03,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 01:49:03,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 01:49:03,666 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 01:49:03,666 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 01:49:03,666 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 01:49:03,666 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 01:49:03,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 01:49:03,666 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 01:49:03,667 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 01:49:03,667 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 01:49:03,667 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-04 01:49:03,667 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-04 01:49:03,667 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-04 01:49:03,667 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 01:49:03,857 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 01:49:03,887 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 01:49:03,888 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 01:49:03,889 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-04 01:49:03,890 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-04 01:49:03,890 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array-hom.wvr.bpl [2022-03-04 01:49:03,891 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array-hom.wvr.bpl' [2022-03-04 01:49:03,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 01:49:03,909 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-04 01:49:03,910 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 01:49:03,910 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 01:49:03,910 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 01:49:03,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:49:03" (1/1) ... [2022-03-04 01:49:03,923 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:49:03" (1/1) ... [2022-03-04 01:49:03,927 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-04 01:49:03,928 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 01:49:03,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 01:49:03,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 01:49:03,930 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 01:49:03,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:49:03" (1/1) ... [2022-03-04 01:49:03,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:49:03" (1/1) ... [2022-03-04 01:49:03,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:49:03" (1/1) ... [2022-03-04 01:49:03,937 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:49:03" (1/1) ... [2022-03-04 01:49:03,938 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:49:03" (1/1) ... [2022-03-04 01:49:03,941 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:49:03" (1/1) ... [2022-03-04 01:49:03,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:49:03" (1/1) ... [2022-03-04 01:49:03,943 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 01:49:03,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 01:49:03,944 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 01:49:03,944 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 01:49:03,944 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:49:03" (1/1) ... [2022-03-04 01:49:03,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 01:49:03,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:49:03,964 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 01:49:03,974 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 01:49:03,995 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-04 01:49:03,996 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-04 01:49:03,996 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-04 01:49:03,996 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-04 01:49:03,996 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-04 01:49:03,996 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-04 01:49:03,996 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-04 01:49:03,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 01:49:03,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 01:49:03,996 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-04 01:49:03,997 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-04 01:49:03,997 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-04 01:49:03,998 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 01:49:04,035 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 01:49:04,036 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 01:49:04,114 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 01:49:04,124 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 01:49:04,124 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-04 01:49:04,126 INFO L202 PluginConnector]: Adding new model sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 01:49:04 BoogieIcfgContainer [2022-03-04 01:49:04,126 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 01:49:04,127 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 01:49:04,127 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 01:49:04,137 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 01:49:04,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:49:03" (1/2) ... [2022-03-04 01:49:04,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@248baeb and model type sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 01:49:04, skipping insertion in model container [2022-03-04 01:49:04,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 01:49:04" (2/2) ... [2022-03-04 01:49:04,139 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-array-hom.wvr.bpl [2022-03-04 01:49:04,142 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 01:49:04,142 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 01:49:04,142 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 01:49:04,142 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 01:49:04,175 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-04 01:49:04,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 01:49:04,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:49:04,205 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 01:49:04,205 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 01:49:04,225 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 01:49:04,229 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 01:49:04,230 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-04 01:49:04,464 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 590 transitions and produced 262 states. [2022-03-04 01:49:04,466 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:49:04,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:49:04,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1731617998, now seen corresponding path program 1 times [2022-03-04 01:49:04,481 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:49:04,482 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078236112] [2022-03-04 01:49:04,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:49:04,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:49:04,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:49:04,787 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-04 01:49:04,787 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:49:04,787 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078236112] [2022-03-04 01:49:04,788 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078236112] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:49:04,788 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158750171] [2022-03-04 01:49:04,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:49:04,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:49:04,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:49:04,793 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 01:49:04,794 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 01:49:04,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:49:04,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-04 01:49:04,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:49:05,085 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 01:49:05,086 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:49:05,258 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 01:49:05,258 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [158750171] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:49:05,259 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:49:05,259 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 18 [2022-03-04 01:49:05,260 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022228392] [2022-03-04 01:49:05,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:49:05,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-04 01:49:05,265 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:49:05,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-04 01:49:05,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-03-04 01:49:05,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:49:05,281 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:49:05,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.2222222222222223) internal successors, (58), 18 states have internal predecessors, (58), 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 01:49:05,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:49:05,723 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 601 transitions and produced 273 states. [2022-03-04 01:49:05,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 01:49:05,756 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-04 01:49:05,951 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 01:49:05,952 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:49:05,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:49:05,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1007173588, now seen corresponding path program 2 times [2022-03-04 01:49:05,953 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:49:05,953 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889145930] [2022-03-04 01:49:05,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:49:05,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:49:05,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:49:06,047 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:49:06,048 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:49:06,048 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889145930] [2022-03-04 01:49:06,048 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889145930] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:49:06,049 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365745087] [2022-03-04 01:49:06,049 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 01:49:06,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:49:06,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:49:06,051 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 01:49:06,052 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 01:49:06,080 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 01:49:06,080 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:49:06,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-04 01:49:06,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:49:06,253 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:49:06,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:49:06,440 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:49:06,440 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [365745087] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:49:06,440 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:49:06,440 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2022-03-04 01:49:06,440 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881590964] [2022-03-04 01:49:06,440 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:49:06,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-03-04 01:49:06,441 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:49:06,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-03-04 01:49:06,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2022-03-04 01:49:06,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:49:06,442 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:49:06,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.625) internal successors, (63), 24 states have internal predecessors, (63), 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 01:49:06,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 01:49:06,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:49:06,761 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 204 transitions and produced 152 states. [2022-03-04 01:49:06,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 01:49:06,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:49:06,780 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 01:49:06,971 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 01:49:06,972 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:49:06,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:49:06,972 INFO L85 PathProgramCache]: Analyzing trace with hash -170935286, now seen corresponding path program 3 times [2022-03-04 01:49:06,972 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:49:06,973 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778481684] [2022-03-04 01:49:06,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:49:06,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:49:06,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:49:07,413 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:49:07,414 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:49:07,414 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778481684] [2022-03-04 01:49:07,414 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778481684] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:49:07,414 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1628169537] [2022-03-04 01:49:07,414 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 01:49:07,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:49:07,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:49:07,415 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 01:49:07,417 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 01:49:07,444 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-03-04 01:49:07,444 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:49:07,445 WARN L261 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 45 conjunts are in the unsatisfiable core [2022-03-04 01:49:07,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:49:08,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:49:08,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:49:08,074 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 01:49:08,074 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 43 treesize of output 87 [2022-03-04 01:49:08,264 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:49:08,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:49:08,820 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:08,821 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:08,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:49:08,822 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:08,822 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:08,823 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:08,823 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:08,823 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:08,824 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:08,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:49:08,869 INFO L353 Elim1Store]: treesize reduction 20, result has 78.9 percent of original size [2022-03-04 01:49:08,869 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 40 treesize of output 85 [2022-03-04 01:49:08,995 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:08,995 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:08,995 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:08,996 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:08,996 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:08,997 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:08,998 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:08,998 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:08,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:49:08,999 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:09,000 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:09,000 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:09,001 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:09,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:49:09,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:49:09,003 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 5 [2022-03-04 01:49:09,122 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:49:09,123 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1628169537] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:49:09,123 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:49:09,123 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 16] total 38 [2022-03-04 01:49:09,123 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489297537] [2022-03-04 01:49:09,123 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:49:09,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-03-04 01:49:09,123 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:49:09,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-03-04 01:49:09,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1282, Unknown=0, NotChecked=0, Total=1406 [2022-03-04 01:49:09,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:49:09,124 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:49:09,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.210526315789474) internal successors, (84), 38 states have internal predecessors, (84), 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 01:49:09,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 01:49:09,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:49:09,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:49:17,118 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 455 transitions and produced 264 states. [2022-03-04 01:49:17,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 01:49:17,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:49:17,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-04 01:49:17,147 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-04 01:49:17,344 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 01:49:17,344 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:49:17,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:49:17,345 INFO L85 PathProgramCache]: Analyzing trace with hash 136490182, now seen corresponding path program 4 times [2022-03-04 01:49:17,345 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:49:17,345 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099090520] [2022-03-04 01:49:17,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:49:17,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:49:17,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:49:17,796 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:49:17,796 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:49:17,796 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099090520] [2022-03-04 01:49:17,796 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099090520] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:49:17,796 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829084814] [2022-03-04 01:49:17,796 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 01:49:17,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:49:17,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:49:17,798 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 01:49:17,799 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 01:49:17,834 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 01:49:17,834 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:49:17,835 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 50 conjunts are in the unsatisfiable core [2022-03-04 01:49:17,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:49:18,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:49:18,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:49:18,536 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:18,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:49:18,537 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:18,538 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 30 [2022-03-04 01:49:18,582 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:49:18,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:49:19,187 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:19,188 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:19,192 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:19,501 INFO L353 Elim1Store]: treesize reduction 158, result has 65.3 percent of original size [2022-03-04 01:49:19,502 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 3 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 42 case distinctions, treesize of input 50 treesize of output 313 [2022-03-04 01:49:33,188 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:33,189 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:33,189 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:33,191 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:33,191 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:33,191 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:33,192 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:33,192 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:33,193 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:33,194 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:33,194 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:33,202 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:33,203 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:33,203 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:33,204 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:33,204 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:33,204 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:33,205 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:33,206 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:33,206 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:33,207 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:33,207 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:33,207 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:33,208 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:33,209 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:33,210 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:33,210 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:33,211 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:33,212 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:33,212 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:33,214 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:33,218 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:33,219 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:33,220 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:33,220 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:33,251 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 01:49:33,251 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 35 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 10 case distinctions, treesize of input 51 treesize of output 126 [2022-03-04 01:49:33,632 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:49:33,632 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829084814] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:49:33,632 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:49:33,632 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 16] total 43 [2022-03-04 01:49:33,632 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860962273] [2022-03-04 01:49:33,632 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:49:33,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-03-04 01:49:33,633 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:49:33,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-03-04 01:49:33,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=1666, Unknown=0, NotChecked=0, Total=1806 [2022-03-04 01:49:33,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:49:33,634 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:49:33,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.255813953488372) internal successors, (97), 43 states have internal predecessors, (97), 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 01:49:33,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 01:49:33,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:49:33,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-04 01:49:33,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:49:42,545 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 509 transitions and produced 300 states. [2022-03-04 01:49:42,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 01:49:42,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:49:42,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-04 01:49:42,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-04 01:49:42,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-04 01:49:42,746 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 01:49:42,747 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:49:42,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:49:42,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1662599294, now seen corresponding path program 5 times [2022-03-04 01:49:42,747 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:49:42,747 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119715912] [2022-03-04 01:49:42,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:49:42,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:49:42,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:49:43,272 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:49:43,272 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:49:43,272 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119715912] [2022-03-04 01:49:43,272 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119715912] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:49:43,272 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838676700] [2022-03-04 01:49:43,272 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-04 01:49:43,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:49:43,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:49:43,274 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 01:49:43,275 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 01:49:43,306 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-03-04 01:49:43,306 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:49:43,307 WARN L261 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 57 conjunts are in the unsatisfiable core [2022-03-04 01:49:43,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:49:44,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:49:44,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:49:44,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:49:44,511 INFO L353 Elim1Store]: treesize reduction 216, result has 3.1 percent of original size [2022-03-04 01:49:44,511 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 12 new quantified variables, introduced 25 case distinctions, treesize of input 219 treesize of output 106 [2022-03-04 01:49:44,563 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:49:44,563 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:49:45,768 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:45,769 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:45,770 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:45,773 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:45,775 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:45,775 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:45,776 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:45,776 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:45,782 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:45,783 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:45,786 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:45,794 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:45,794 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:45,798 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:45,801 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:49:46,200 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 01:49:46,201 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 15 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 51 case distinctions, treesize of input 118 treesize of output 581 [2022-03-04 01:55:33,967 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:55:33,967 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838676700] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:55:33,968 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:55:33,968 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 51 [2022-03-04 01:55:33,968 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827110031] [2022-03-04 01:55:33,968 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:55:33,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-03-04 01:55:33,968 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:55:33,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-03-04 01:55:33,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=2358, Unknown=0, NotChecked=0, Total=2550 [2022-03-04 01:55:33,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:55:33,969 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:55:33,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 2.1372549019607843) internal successors, (109), 51 states have internal predecessors, (109), 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 01:55:33,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 01:55:33,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:55:33,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-04 01:55:33,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-04 01:55:33,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:55:41,627 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 199 transitions and produced 183 states. [2022-03-04 01:55:41,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 01:55:41,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:55:41,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-04 01:55:41,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-04 01:55:41,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-04 01:55:41,645 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-03-04 01:55:41,831 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 01:55:41,832 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:55:41,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:55:41,832 INFO L85 PathProgramCache]: Analyzing trace with hash 2079005886, now seen corresponding path program 6 times [2022-03-04 01:55:41,832 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:55:41,835 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854906564] [2022-03-04 01:55:41,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:55:41,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:55:41,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:55:41,966 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 36 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:55:41,966 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:55:41,966 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854906564] [2022-03-04 01:55:41,966 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854906564] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:55:41,966 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432838945] [2022-03-04 01:55:41,967 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-04 01:55:41,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:55:41,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:55:41,968 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 01:55:41,969 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 01:55:42,002 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2022-03-04 01:55:42,003 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:55:42,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 18 conjunts are in the unsatisfiable core [2022-03-04 01:55:42,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:55:42,303 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 49 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:55:42,304 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:55:42,655 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 49 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:55:42,655 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432838945] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:55:42,655 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:55:42,655 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 48 [2022-03-04 01:55:42,656 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92770458] [2022-03-04 01:55:42,656 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:55:42,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-03-04 01:55:42,656 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:55:42,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-03-04 01:55:42,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=1850, Unknown=0, NotChecked=0, Total=2256 [2022-03-04 01:55:42,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:55:42,657 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:55:42,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 2.375) internal successors, (114), 48 states have internal predecessors, (114), 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 01:55:42,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 01:55:42,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:55:42,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-04 01:55:42,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-04 01:55:42,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-03-04 01:55:42,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:55:43,952 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 247 transitions and produced 232 states. [2022-03-04 01:55:43,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 01:55:43,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:55:43,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-04 01:55:43,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-04 01:55:43,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-04 01:55:43,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-04 01:55:43,977 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 01:55:44,158 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 01:55:44,158 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:55:44,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:55:44,158 INFO L85 PathProgramCache]: Analyzing trace with hash -713231340, now seen corresponding path program 7 times [2022-03-04 01:55:44,159 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:55:44,159 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419392347] [2022-03-04 01:55:44,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:55:44,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:55:44,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:55:44,335 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 68 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:55:44,335 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:55:44,335 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419392347] [2022-03-04 01:55:44,335 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419392347] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:55:44,335 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1819782649] [2022-03-04 01:55:44,335 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-04 01:55:44,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:55:44,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:55:44,336 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 01:55:44,337 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 01:55:44,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:55:44,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 19 conjunts are in the unsatisfiable core [2022-03-04 01:55:44,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:55:44,727 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 79 proven. 64 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-04 01:55:44,728 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:55:44,990 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 79 proven. 64 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-04 01:55:44,990 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1819782649] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:55:44,990 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:55:44,990 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 20, 20] total 50 [2022-03-04 01:55:44,991 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228683236] [2022-03-04 01:55:44,991 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:55:44,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-03-04 01:55:44,991 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:55:44,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-03-04 01:55:44,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=397, Invalid=2053, Unknown=0, NotChecked=0, Total=2450 [2022-03-04 01:55:44,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:55:44,992 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:55:44,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.44) internal successors, (122), 50 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 01:55:44,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 01:55:44,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:55:44,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-04 01:55:44,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-04 01:55:44,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-03-04 01:55:44,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-04 01:55:44,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:55:48,784 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2333 transitions and produced 950 states. [2022-03-04 01:55:48,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 01:55:48,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:55:48,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-04 01:55:48,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-04 01:55:48,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-04 01:55:48,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-03-04 01:55:48,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-04 01:55:48,814 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-04 01:55:48,999 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 01:55:48,999 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:55:49,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:55:49,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1346980366, now seen corresponding path program 8 times [2022-03-04 01:55:49,000 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:55:49,000 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493665635] [2022-03-04 01:55:49,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:55:49,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:55:49,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:55:49,207 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 68 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:55:49,207 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:55:49,208 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493665635] [2022-03-04 01:55:49,208 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493665635] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:55:49,208 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707440331] [2022-03-04 01:55:49,208 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 01:55:49,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:55:49,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:55:49,209 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 01:55:49,210 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 01:55:49,241 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 01:55:49,241 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:55:49,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 21 conjunts are in the unsatisfiable core [2022-03-04 01:55:49,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:55:49,622 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 81 proven. 81 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 01:55:49,622 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:55:49,934 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 81 proven. 81 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 01:55:49,934 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707440331] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:55:49,934 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:55:49,934 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 22, 22] total 54 [2022-03-04 01:55:49,934 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935032320] [2022-03-04 01:55:49,934 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:55:49,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-03-04 01:55:49,935 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:55:49,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-03-04 01:55:49,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=469, Invalid=2393, Unknown=0, NotChecked=0, Total=2862 [2022-03-04 01:55:49,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:55:49,936 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:55:49,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 2.388888888888889) internal successors, (129), 54 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 01:55:49,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 01:55:49,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:55:49,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-04 01:55:49,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-04 01:55:49,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-03-04 01:55:49,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 181 states. [2022-03-04 01:55:49,937 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-03-04 01:55:49,937 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:55:50,907 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2344 transitions and produced 961 states. [2022-03-04 01:55:50,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 01:55:50,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:55:50,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-04 01:55:50,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-04 01:55:50,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-04 01:55:50,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-03-04 01:55:50,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-04 01:55:50,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-04 01:55:50,925 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 01:55:51,110 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 01:55:51,110 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:55:51,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:55:51,111 INFO L85 PathProgramCache]: Analyzing trace with hash -494438320, now seen corresponding path program 9 times [2022-03-04 01:55:51,111 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:55:51,111 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829223789] [2022-03-04 01:55:51,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:55:51,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:55:51,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:55:51,322 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 68 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:55:51,323 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:55:51,323 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829223789] [2022-03-04 01:55:51,323 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829223789] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:55:51,323 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608187990] [2022-03-04 01:55:51,323 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 01:55:51,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:55:51,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:55:51,324 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 01:55:51,325 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 01:55:51,362 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-03-04 01:55:51,362 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:55:51,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 24 conjunts are in the unsatisfiable core [2022-03-04 01:55:51,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:55:51,825 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 68 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:55:51,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:55:52,364 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 85 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:55:52,364 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608187990] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:55:52,364 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:55:52,364 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 66 [2022-03-04 01:55:52,364 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107920358] [2022-03-04 01:55:52,364 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:55:52,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-03-04 01:55:52,365 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:55:52,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-03-04 01:55:52,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=768, Invalid=3522, Unknown=0, NotChecked=0, Total=4290 [2022-03-04 01:55:52,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:55:52,366 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:55:52,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 2.227272727272727) internal successors, (147), 66 states have internal predecessors, (147), 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 01:55:52,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 01:55:52,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:55:52,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-04 01:55:52,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-04 01:55:52,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-03-04 01:55:52,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 181 states. [2022-03-04 01:55:52,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-03-04 01:55:52,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-03-04 01:55:52,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:55:53,065 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 452 transitions and produced 340 states. [2022-03-04 01:55:53,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 01:55:53,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:55:53,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-04 01:55:53,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-04 01:55:53,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-04 01:55:53,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-03-04 01:55:53,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-04 01:55:53,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-04 01:55:53,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-04 01:55:53,086 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 01:55:53,269 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 01:55:53,270 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:55:53,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:55:53,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1540285650, now seen corresponding path program 10 times [2022-03-04 01:55:53,270 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:55:53,270 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240168462] [2022-03-04 01:55:53,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:55:53,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:55:53,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:55:54,359 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:55:54,359 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:55:54,359 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240168462] [2022-03-04 01:55:54,359 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240168462] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:55:54,359 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590498231] [2022-03-04 01:55:54,359 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 01:55:54,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:55:54,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:55:54,360 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 01:55:54,361 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 01:55:54,400 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 01:55:54,400 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:55:54,401 WARN L261 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 98 conjunts are in the unsatisfiable core [2022-03-04 01:55:54,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:55:56,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,511 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:55:56,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,530 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:55:56,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,531 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:55:56,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:55:56,533 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 55 disjoint index pairs (out of 91 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 51 [2022-03-04 01:55:56,577 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:55:56,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:55:58,496 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:55:58,496 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:55:58,496 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:55:58,497 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:55:58,497 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:55:58,497 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:55:58,498 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:55:58,498 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:55:58,498 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:55:58,498 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:55:58,499 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:55:58,499 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:55:58,499 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:55:58,500 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:55:58,500 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:55:58,500 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:55:58,500 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:55:58,501 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:55:58,501 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:55:58,501 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:55:58,501 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:55:58,502 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:55:58,502 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:55:58,502 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:55:58,503 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:55:58,504 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:55:58,504 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:55:58,505 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:55:58,505 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:55:58,505 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:55:58,505 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:55:58,506 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:55:58,506 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:55:58,506 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:55:58,507 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:55:58,507 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:56:03,298 INFO L353 Elim1Store]: treesize reduction 866, result has 61.2 percent of original size [2022-03-04 01:56:03,299 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 22 select indices, 22 select index equivalence classes, 36 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 195 case distinctions, treesize of input 110 treesize of output 1393 Received shutdown request... [2022-03-04 02:03:08,569 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-03-04 02:03:08,571 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-03-04 02:03:08,587 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 02:03:08,597 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 02:03:08,597 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 02:03:08,598 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 02:03:08,779 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 02:03:08,779 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 19ms.. [2022-03-04 02:03:08,781 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-04 02:03:08,781 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-04 02:03:08,781 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-04 02:03:08,784 INFO L732 BasicCegarLoop]: Path program histogram: [10] [2022-03-04 02:03:08,786 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 02:03:08,786 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 02:03:08,787 INFO L202 PluginConnector]: Adding new model sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 02:03:08 BasicIcfg [2022-03-04 02:03:08,787 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 02:03:08,787 INFO L158 Benchmark]: Toolchain (without parser) took 844878.75ms. Allocated memory was 185.6MB in the beginning and 632.3MB in the end (delta: 446.7MB). Free memory was 149.4MB in the beginning and 375.4MB in the end (delta: -226.0MB). Peak memory consumption was 432.6MB. Max. memory is 8.0GB. [2022-03-04 02:03:08,788 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 185.6MB. Free memory was 150.7MB in the beginning and 150.6MB in the end (delta: 147.1kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 02:03:08,788 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.58ms. Allocated memory is still 185.6MB. Free memory was 149.4MB in the beginning and 147.8MB in the end (delta: 1.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-04 02:03:08,788 INFO L158 Benchmark]: Boogie Preprocessor took 12.94ms. Allocated memory is still 185.6MB. Free memory was 147.8MB in the beginning and 147.0MB in the end (delta: 885.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 02:03:08,788 INFO L158 Benchmark]: RCFGBuilder took 182.35ms. Allocated memory is still 185.6MB. Free memory was 146.8MB in the beginning and 137.4MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-04 02:03:08,788 INFO L158 Benchmark]: TraceAbstraction took 844660.29ms. Allocated memory was 185.6MB in the beginning and 632.3MB in the end (delta: 446.7MB). Free memory was 136.9MB in the beginning and 375.4MB in the end (delta: -238.5MB). Peak memory consumption was 419.0MB. Max. memory is 8.0GB. [2022-03-04 02:03:08,789 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 0.11ms. Allocated memory is still 185.6MB. Free memory was 150.7MB in the beginning and 150.6MB in the end (delta: 147.1kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.58ms. Allocated memory is still 185.6MB. Free memory was 149.4MB in the beginning and 147.8MB in the end (delta: 1.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 12.94ms. Allocated memory is still 185.6MB. Free memory was 147.8MB in the beginning and 147.0MB in the end (delta: 885.4kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 182.35ms. Allocated memory is still 185.6MB. Free memory was 146.8MB in the beginning and 137.4MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 844660.29ms. Allocated memory was 185.6MB in the beginning and 632.3MB in the end (delta: 446.7MB). Free memory was 136.9MB in the beginning and 375.4MB in the end (delta: -238.5MB). Peak memory consumption was 419.0MB. 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: 66]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 19ms.. - 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 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 19ms.. - 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 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 19ms.. - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 19ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 42 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 844.6s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 32.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 616, 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, 374.2s InterpolantComputationTime, 792 NumberOfCodeBlocks, 792 NumberOfCodeBlocksAsserted, 48 NumberOfCheckSat, 1161 ConstructedInterpolants, 22 QuantifiedInterpolants, 18436 SizeOfPredicates, 83 NumberOfNonLiveVariables, 1017 ConjunctsInSsa, 251 ConjunctsInUnsatCore, 27 InterpolantComputations, 0 PerfectInterpolantSequences, 871/2193 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