/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 06:36:28,850 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 06:36:28,852 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 06:36:28,891 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-04 06:36:28,905 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 06:36:28,906 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 06:36:28,906 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 06:36:28,907 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 06:36:28,907 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 06:36:28,908 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 06:36:28,908 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 06:36:28,909 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 06:36:28,910 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 06:36:28,912 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 06:36:28,916 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 06:36:28,917 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 06:36:28,921 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-04 06:36:28,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-04 06:36:28,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-04 06:36:28,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-04 06:36:28,930 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt.epf [2022-03-04 06:36:28,952 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 06:36:28,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 06:36:28,953 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 06:36:28,953 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 06:36:28,954 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 06:36:28,954 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 06:36:28,954 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 06:36:28,954 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 06:36:28,954 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 06:36:28,954 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 06:36:28,955 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 06:36:28,955 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 06:36:28,955 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 06:36:28,955 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 06:36:28,955 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 06:36:28,955 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 06:36:28,956 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 06:36:28,956 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 06:36:28,956 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 06:36:28,956 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 06:36:28,956 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 06:36:28,956 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 06:36:28,956 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 06:36:28,956 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 06:36:28,957 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 06:36:28,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 06:36:28,958 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 06:36:28,958 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 06:36:28,958 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 06:36:28,958 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 06:36:28,958 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 06:36:28,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 06:36:28,958 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 06:36:28,958 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 06:36:28,958 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 06:36:28,959 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-04 06:36:28,959 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-04 06:36:28,959 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 06:36:29,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 06:36:29,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 06:36:29,149 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 06:36:29,150 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-04 06:36:29,151 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-04 06:36:29,152 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun.wvr.bpl [2022-03-04 06:36:29,152 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun.wvr.bpl' [2022-03-04 06:36:29,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 06:36:29,169 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-04 06:36:29,170 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 06:36:29,170 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 06:36:29,170 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 06:36:29,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:36:29" (1/1) ... [2022-03-04 06:36:29,182 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:36:29" (1/1) ... [2022-03-04 06:36:29,186 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-04 06:36:29,187 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 06:36:29,188 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 06:36:29,188 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 06:36:29,188 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 06:36:29,193 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:36:29" (1/1) ... [2022-03-04 06:36:29,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:36:29" (1/1) ... [2022-03-04 06:36:29,194 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:36:29" (1/1) ... [2022-03-04 06:36:29,194 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:36:29" (1/1) ... [2022-03-04 06:36:29,196 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:36:29" (1/1) ... [2022-03-04 06:36:29,198 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:36:29" (1/1) ... [2022-03-04 06:36:29,198 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:36:29" (1/1) ... [2022-03-04 06:36:29,199 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 06:36:29,199 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 06:36:29,199 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 06:36:29,199 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 06:36:29,200 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:36:29" (1/1) ... [2022-03-04 06:36:29,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 06:36:29,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:36:29,230 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-04 06:36:29,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-04 06:36:29,280 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-04 06:36:29,280 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-04 06:36:29,280 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-04 06:36:29,280 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-04 06:36:29,280 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-04 06:36:29,280 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-04 06:36:29,281 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-04 06:36:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 06:36:29,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 06:36:29,281 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-04 06:36:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-04 06:36:29,281 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-04 06:36:29,282 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-04 06:36:29,316 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 06:36:29,319 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 06:36:29,410 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 06:36:29,420 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 06:36:29,420 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-04 06:36:29,421 INFO L202 PluginConnector]: Adding new model sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 06:36:29 BoogieIcfgContainer [2022-03-04 06:36:29,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 06:36:29,423 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 06:36:29,423 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 06:36:29,428 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 06:36:29,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:36:29" (1/2) ... [2022-03-04 06:36:29,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61527c6b and model type sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:36:29, skipping insertion in model container [2022-03-04 06:36:29,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 06:36:29" (2/2) ... [2022-03-04 06:36:29,430 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-fun.wvr.bpl [2022-03-04 06:36:29,434 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 06:36:29,434 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 06:36:29,434 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 06:36:29,434 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 06:36:29,481 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-04 06:36:29,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 06:36:29,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:36:29,521 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-04 06:36:29,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-04 06:36:29,576 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 06:36:29,585 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=true [2022-03-04 06:36:29,586 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-04 06:36:29,705 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 590 transitions and produced 262 states. [2022-03-04 06:36:29,708 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 06:36:29,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:36:29,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1731617998, now seen corresponding path program 1 times [2022-03-04 06:36:29,718 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:36:29,718 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97661803] [2022-03-04 06:36:29,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:36:29,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:36:29,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:36:29,901 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 06:36:29,901 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:36:29,901 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97661803] [2022-03-04 06:36:29,902 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97661803] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:36:29,902 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693956275] [2022-03-04 06:36:29,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:36:29,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:36:29,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:36:29,904 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 06:36:29,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-04 06:36:29,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:36:29,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-04 06:36:29,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:36:30,177 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 06:36:30,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:36:30,374 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 06:36:30,375 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693956275] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:36:30,375 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:36:30,375 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 18 [2022-03-04 06:36:30,376 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23396352] [2022-03-04 06:36:30,377 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:36:30,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-04 06:36:30,382 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:36:30,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-04 06:36:30,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-03-04 06:36:30,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:36:30,404 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:36:30,405 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 06:36:30,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:36:30,838 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 601 transitions and produced 273 states. [2022-03-04 06:36:30,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:36:30,858 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-04 06:36:31,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-03-04 06:36:31,055 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 06:36:31,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:36:31,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1007173588, now seen corresponding path program 2 times [2022-03-04 06:36:31,056 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:36:31,056 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605727077] [2022-03-04 06:36:31,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:36:31,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:36:31,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:36:31,180 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 06:36:31,181 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:36:31,181 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605727077] [2022-03-04 06:36:31,181 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605727077] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:36:31,181 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156602556] [2022-03-04 06:36:31,181 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 06:36:31,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:36:31,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:36:31,183 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 06:36:31,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-04 06:36:31,236 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 06:36:31,237 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:36:31,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-04 06:36:31,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:36:31,454 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 06:36:31,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:36:31,612 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 06:36:31,613 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1156602556] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:36:31,613 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:36:31,614 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2022-03-04 06:36:31,614 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305415122] [2022-03-04 06:36:31,614 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:36:31,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-03-04 06:36:31,616 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:36:31,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-03-04 06:36:31,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2022-03-04 06:36:31,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:36:31,617 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:36:31,617 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 06:36:31,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:36:31,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:36:31,931 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 204 transitions and produced 152 states. [2022-03-04 06:36:31,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:36:31,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 06:36:31,948 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-04 06:36:32,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:36:32,133 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 06:36:32,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:36:32,134 INFO L85 PathProgramCache]: Analyzing trace with hash -170935286, now seen corresponding path program 3 times [2022-03-04 06:36:32,134 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:36:32,134 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228425708] [2022-03-04 06:36:32,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:36:32,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:36:32,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:36:32,620 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 06:36:32,620 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:36:32,620 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228425708] [2022-03-04 06:36:32,621 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228425708] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:36:32,621 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190032346] [2022-03-04 06:36:32,621 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 06:36:32,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:36:32,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:36:32,622 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 06:36:32,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-04 06:36:32,667 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-03-04 06:36:32,667 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:36:32,668 WARN L261 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 45 conjunts are in the unsatisfiable core [2022-03-04 06:36:32,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:36:33,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:36:33,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:36:33,326 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 06:36:33,328 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 06:36:33,553 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 06:36:33,553 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:36:34,120 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:34,121 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:34,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:36:34,122 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:34,122 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:34,122 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:34,123 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:34,123 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:34,124 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:34,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:36:34,175 INFO L353 Elim1Store]: treesize reduction 20, result has 78.9 percent of original size [2022-03-04 06:36:34,175 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 06:36:34,304 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:34,304 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:34,305 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:34,305 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:34,305 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:34,306 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:34,307 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:34,307 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:34,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:36:34,308 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:34,308 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:34,309 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:34,309 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:34,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:36:34,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:36:34,311 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 06:36:34,429 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 06:36:34,430 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190032346] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:36:34,430 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:36:34,430 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 16] total 38 [2022-03-04 06:36:34,430 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258027780] [2022-03-04 06:36:34,430 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:36:34,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-03-04 06:36:34,430 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:36:34,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-03-04 06:36:34,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1282, Unknown=0, NotChecked=0, Total=1406 [2022-03-04 06:36:34,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:36:34,431 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:36:34,432 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 06:36:34,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:36:34,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 06:36:34,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:36:42,261 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 455 transitions and produced 264 states. [2022-03-04 06:36:42,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:36:42,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 06:36:42,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-04 06:36:42,278 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-04 06:36:42,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:36:42,463 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 06:36:42,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:36:42,463 INFO L85 PathProgramCache]: Analyzing trace with hash 136490182, now seen corresponding path program 4 times [2022-03-04 06:36:42,463 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:36:42,464 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902613532] [2022-03-04 06:36:42,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:36:42,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:36:42,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:36:42,938 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 06:36:42,938 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:36:42,938 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902613532] [2022-03-04 06:36:42,938 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902613532] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:36:42,938 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713180821] [2022-03-04 06:36:42,939 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 06:36:42,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:36:42,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:36:42,940 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 06:36:42,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-04 06:36:42,968 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 06:36:42,969 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:36:42,969 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 50 conjunts are in the unsatisfiable core [2022-03-04 06:36:42,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:36:43,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:36:43,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:36:43,665 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:43,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:36:43,666 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:43,667 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 06:36:43,704 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 06:36:43,704 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:36:44,276 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:44,277 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:44,292 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:44,585 INFO L353 Elim1Store]: treesize reduction 158, result has 65.3 percent of original size [2022-03-04 06:36:44,593 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 06:36:58,210 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:58,210 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:58,211 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:58,212 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:58,213 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:58,213 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:58,214 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:58,214 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:58,215 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:58,216 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:58,216 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:58,217 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:58,217 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:58,218 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:58,218 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:58,218 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:58,219 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:58,220 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:58,221 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:58,221 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:58,221 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:58,222 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:58,222 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:58,223 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:58,224 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:58,225 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:58,225 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:58,225 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:58,226 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:58,226 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:58,227 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:58,228 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:58,229 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:58,230 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:58,230 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:36:58,266 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 06:36:58,266 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 06:36:58,696 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 06:36:58,696 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713180821] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:36:58,697 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:36:58,697 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 16] total 43 [2022-03-04 06:36:58,697 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468850026] [2022-03-04 06:36:58,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:36:58,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-03-04 06:36:58,697 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:36:58,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-03-04 06:36:58,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=1666, Unknown=0, NotChecked=0, Total=1806 [2022-03-04 06:36:58,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:36:58,698 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:36:58,699 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 06:36:58,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:36:58,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 06:36:58,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-04 06:36:58,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:37:07,736 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 509 transitions and produced 300 states. [2022-03-04 06:37:07,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:37:07,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 06:37:07,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-04 06:37:07,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-04 06:37:07,755 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-04 06:37:07,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:37:07,937 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 06:37:07,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:37:07,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1662599294, now seen corresponding path program 5 times [2022-03-04 06:37:07,938 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:37:07,938 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470081082] [2022-03-04 06:37:07,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:37:07,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:37:07,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:37:08,384 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 06:37:08,384 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:37:08,385 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470081082] [2022-03-04 06:37:08,385 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470081082] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:37:08,385 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755464341] [2022-03-04 06:37:08,385 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-04 06:37:08,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:37:08,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:37:08,386 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 06:37:08,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-04 06:37:08,420 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-03-04 06:37:08,420 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:37:08,421 WARN L261 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 57 conjunts are in the unsatisfiable core [2022-03-04 06:37:08,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:37:09,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:09,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:09,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:37:09,552 INFO L353 Elim1Store]: treesize reduction 216, result has 3.1 percent of original size [2022-03-04 06:37:09,552 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 06:37:09,590 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 06:37:09,590 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:37:10,811 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:10,812 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:10,812 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:10,816 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:10,818 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:10,818 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:10,819 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:10,819 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:10,822 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:10,823 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:10,826 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:10,834 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:10,835 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:10,839 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:10,842 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:37:11,236 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 06:37:11,237 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 06:43:33,345 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 06:43:33,346 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1755464341] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:43:33,346 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:43:33,346 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 51 [2022-03-04 06:43:33,346 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788750025] [2022-03-04 06:43:33,346 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:43:33,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-03-04 06:43:33,348 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:43:33,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-03-04 06:43:33,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=2358, Unknown=0, NotChecked=0, Total=2550 [2022-03-04 06:43:33,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:43:33,350 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:43:33,350 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 06:43:33,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:43:33,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 06:43:33,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-04 06:43:33,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-04 06:43:33,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:43:40,822 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 199 transitions and produced 183 states. [2022-03-04 06:43:40,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:43:40,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 06:43:40,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-04 06:43:40,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-04 06:43:40,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-04 06:43:40,877 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 06:43:41,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:43:41,062 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 06:43:41,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:43:41,062 INFO L85 PathProgramCache]: Analyzing trace with hash 2079005886, now seen corresponding path program 6 times [2022-03-04 06:43:41,062 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:43:41,062 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599944300] [2022-03-04 06:43:41,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:43:41,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:43:41,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:43:41,220 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 06:43:41,221 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:43:41,221 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599944300] [2022-03-04 06:43:41,221 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599944300] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:43:41,221 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412652705] [2022-03-04 06:43:41,221 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-04 06:43:41,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:43:41,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:43:41,222 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 06:43:41,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-04 06:43:41,256 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2022-03-04 06:43:41,256 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:43:41,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 18 conjunts are in the unsatisfiable core [2022-03-04 06:43:41,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:43:41,573 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 06:43:41,574 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:43:41,920 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 06:43:41,921 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1412652705] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:43:41,921 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:43:41,921 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 48 [2022-03-04 06:43:41,921 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671216506] [2022-03-04 06:43:41,921 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:43:41,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-03-04 06:43:41,921 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:43:41,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-03-04 06:43:41,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=1850, Unknown=0, NotChecked=0, Total=2256 [2022-03-04 06:43:41,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:43:41,923 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:43:41,923 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 06:43:41,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:43:41,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 06:43:41,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-04 06:43:41,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-04 06:43:41,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-03-04 06:43:41,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:43:43,161 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 247 transitions and produced 232 states. [2022-03-04 06:43:43,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:43:43,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 06:43:43,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-04 06:43:43,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-04 06:43:43,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-04 06:43:43,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-04 06:43:43,191 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-03-04 06:43:43,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:43:43,362 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 06:43:43,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:43:43,363 INFO L85 PathProgramCache]: Analyzing trace with hash -713231340, now seen corresponding path program 7 times [2022-03-04 06:43:43,363 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:43:43,363 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802684770] [2022-03-04 06:43:43,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:43:43,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:43:43,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:43:43,558 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 06:43:43,558 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:43:43,558 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802684770] [2022-03-04 06:43:43,558 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802684770] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:43:43,558 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [271977438] [2022-03-04 06:43:43,558 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-04 06:43:43,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:43:43,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:43:43,560 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 06:43:43,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-04 06:43:43,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:43:43,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 19 conjunts are in the unsatisfiable core [2022-03-04 06:43:43,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:43:43,827 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 06:43:43,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:43:44,012 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 06:43:44,013 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [271977438] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:43:44,013 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:43:44,013 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 20, 20] total 50 [2022-03-04 06:43:44,014 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416523840] [2022-03-04 06:43:44,014 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:43:44,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-03-04 06:43:44,015 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:43:44,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-03-04 06:43:44,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=397, Invalid=2053, Unknown=0, NotChecked=0, Total=2450 [2022-03-04 06:43:44,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:43:44,017 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:43:44,018 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 06:43:44,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:43:44,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 06:43:44,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-04 06:43:44,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-04 06:43:44,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-03-04 06:43:44,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-04 06:43:44,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:43:46,694 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2333 transitions and produced 950 states. [2022-03-04 06:43:46,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:43:46,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 06:43:46,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-04 06:43:46,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-04 06:43:46,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-04 06:43:46,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-03-04 06:43:46,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-04 06:43:46,733 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 06:43:46,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-03-04 06:43:46,896 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 06:43:46,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:43:46,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1346980366, now seen corresponding path program 8 times [2022-03-04 06:43:46,896 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:43:46,896 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295679856] [2022-03-04 06:43:46,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:43:46,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:43:46,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:43:47,101 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 06:43:47,101 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:43:47,101 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295679856] [2022-03-04 06:43:47,101 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295679856] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:43:47,101 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751306276] [2022-03-04 06:43:47,101 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 06:43:47,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:43:47,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:43:47,104 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 06:43:47,105 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 06:43:47,135 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 06:43:47,136 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:43:47,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 21 conjunts are in the unsatisfiable core [2022-03-04 06:43:47,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:43:47,543 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 06:43:47,543 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:43:47,857 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 06:43:47,857 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1751306276] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:43:47,857 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:43:47,857 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 22, 22] total 54 [2022-03-04 06:43:47,858 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154152694] [2022-03-04 06:43:47,858 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:43:47,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-03-04 06:43:47,858 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:43:47,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-03-04 06:43:47,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=469, Invalid=2393, Unknown=0, NotChecked=0, Total=2862 [2022-03-04 06:43:47,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:43:47,859 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:43:47,859 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 06:43:47,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:43:47,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 06:43:47,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-04 06:43:47,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-04 06:43:47,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-03-04 06:43:47,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 181 states. [2022-03-04 06:43:47,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-03-04 06:43:47,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:43:48,760 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2344 transitions and produced 961 states. [2022-03-04 06:43:48,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:43:48,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 06:43:48,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-04 06:43:48,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-04 06:43:48,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-04 06:43:48,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-03-04 06:43:48,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-04 06:43:48,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-04 06:43:48,779 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 06:43:48,961 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 06:43:48,962 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 06:43:48,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:43:48,962 INFO L85 PathProgramCache]: Analyzing trace with hash -494438320, now seen corresponding path program 9 times [2022-03-04 06:43:48,963 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:43:48,963 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224575755] [2022-03-04 06:43:48,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:43:48,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:43:48,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:43:49,240 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 06:43:49,240 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:43:49,240 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224575755] [2022-03-04 06:43:49,240 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224575755] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:43:49,240 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956394584] [2022-03-04 06:43:49,240 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 06:43:49,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:43:49,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:43:49,241 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 06:43:49,242 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 06:43:49,280 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-03-04 06:43:49,280 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:43:49,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 24 conjunts are in the unsatisfiable core [2022-03-04 06:43:49,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:43:49,637 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 06:43:49,637 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:43:49,985 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 06:43:49,985 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956394584] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:43:49,985 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:43:49,986 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 66 [2022-03-04 06:43:49,986 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855389884] [2022-03-04 06:43:49,986 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:43:49,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-03-04 06:43:49,986 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:43:49,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-03-04 06:43:49,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=768, Invalid=3522, Unknown=0, NotChecked=0, Total=4290 [2022-03-04 06:43:49,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:43:49,989 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:43:49,989 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 06:43:49,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:43:49,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 06:43:49,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-04 06:43:49,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-04 06:43:49,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-03-04 06:43:49,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 181 states. [2022-03-04 06:43:49,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-03-04 06:43:49,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-03-04 06:43:49,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:43:50,576 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 452 transitions and produced 340 states. [2022-03-04 06:43:50,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:43:50,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 06:43:50,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-04 06:43:50,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-04 06:43:50,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-04 06:43:50,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-03-04 06:43:50,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-04 06:43:50,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-04 06:43:50,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-04 06:43:50,593 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 06:43:50,777 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 06:43:50,777 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 06:43:50,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:43:50,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1540285650, now seen corresponding path program 10 times [2022-03-04 06:43:50,777 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:43:50,777 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087546942] [2022-03-04 06:43:50,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:43:50,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:43:50,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:43:51,975 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 06:43:51,975 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:43:51,976 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087546942] [2022-03-04 06:43:51,976 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087546942] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:43:51,976 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772917107] [2022-03-04 06:43:51,976 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 06:43:51,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:43:51,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:43:51,977 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 06:43:51,978 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 06:43:52,013 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 06:43:52,013 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:43:52,014 WARN L261 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 98 conjunts are in the unsatisfiable core [2022-03-04 06:43:52,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:43:54,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,049 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:43:54,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,068 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:43:54,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,069 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:43:54,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:43:54,071 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 06:43:54,118 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 06:43:54,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:43:56,067 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:43:56,068 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:43:56,068 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:43:56,069 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:43:56,069 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:43:56,069 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:43:56,069 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:43:56,070 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:43:56,070 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:43:56,070 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:43:56,070 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:43:56,071 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:43:56,071 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:43:56,071 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:43:56,072 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:43:56,072 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:43:56,072 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:43:56,072 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:43:56,073 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:43:56,073 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:43:56,073 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:43:56,073 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:43:56,074 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:43:56,074 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:43:56,074 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:43:56,074 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:43:56,075 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:43:56,075 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:43:56,075 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:43:56,075 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:43:56,076 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:43:56,076 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:43:56,076 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:43:56,076 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:43:56,077 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:43:56,077 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:44:00,912 INFO L353 Elim1Store]: treesize reduction 866, result has 61.2 percent of original size [2022-03-04 06:44:00,912 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 06:50:53,343 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 06:50:53,343 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 06:50:53,344 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 06:50:53,354 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-03-04 06:50:53,371 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-03-04 06:50:53,390 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 06:50:53,587 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 06:50:53,588 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 20ms.. [2022-03-04 06:50:53,589 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-04 06:50:53,589 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-04 06:50:53,589 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-04 06:50:53,592 INFO L732 BasicCegarLoop]: Path program histogram: [10] [2022-03-04 06:50:53,593 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 06:50:53,593 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 06:50:53,595 INFO L202 PluginConnector]: Adding new model sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 06:50:53 BasicIcfg [2022-03-04 06:50:53,595 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 06:50:53,595 INFO L158 Benchmark]: Toolchain (without parser) took 864425.65ms. Allocated memory was 228.6MB in the beginning and 823.1MB in the end (delta: 594.5MB). Free memory was 191.7MB in the beginning and 501.8MB in the end (delta: -310.1MB). Peak memory consumption was 538.8MB. Max. memory is 8.0GB. [2022-03-04 06:50:53,595 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 228.6MB. Free memory is still 192.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 06:50:53,595 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.52ms. Allocated memory is still 228.6MB. Free memory was 191.7MB in the beginning and 190.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 06:50:53,595 INFO L158 Benchmark]: Boogie Preprocessor took 10.63ms. Allocated memory is still 228.6MB. Free memory was 190.2MB in the beginning and 189.2MB in the end (delta: 992.1kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 06:50:53,596 INFO L158 Benchmark]: RCFGBuilder took 222.07ms. Allocated memory is still 228.6MB. Free memory was 189.1MB in the beginning and 179.4MB in the end (delta: 9.7MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-04 06:50:53,596 INFO L158 Benchmark]: TraceAbstraction took 864172.04ms. Allocated memory was 228.6MB in the beginning and 823.1MB in the end (delta: 594.5MB). Free memory was 178.9MB in the beginning and 501.8MB in the end (delta: -322.9MB). Peak memory consumption was 526.2MB. Max. memory is 8.0GB. [2022-03-04 06:50:53,597 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 0.10ms. Allocated memory is still 228.6MB. Free memory is still 192.9MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 17.52ms. Allocated memory is still 228.6MB. Free memory was 191.7MB in the beginning and 190.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 10.63ms. Allocated memory is still 228.6MB. Free memory was 190.2MB in the beginning and 189.2MB in the end (delta: 992.1kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 222.07ms. Allocated memory is still 228.6MB. Free memory was 189.1MB in the beginning and 179.4MB in the end (delta: 9.7MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 864172.04ms. Allocated memory was 228.6MB in the beginning and 823.1MB in the end (delta: 594.5MB). Free memory was 178.9MB in the beginning and 501.8MB in the end (delta: -322.9MB). Peak memory consumption was 526.2MB. 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 20ms.. - 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 20ms.. - 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 20ms.. - 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 20ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 42 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 864.1s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 30.6s, 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, 408.0s 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